/* =========================================
   CERTELEVATE — GLASS + GEOMETRIC OVERHAUL
   ========================================= */

:root {
    /* Deep space backgrounds */
    --bg: #0a0d14;
    --bg-card: rgba(18, 22, 32, 0.65);
    --bg-card-hover: rgba(28, 34, 48, 0.75);
    --bg-elevated: rgba(22, 28, 40, 0.80);

    /* Glass properties */
    --glass: rgba(255, 255, 255, 0.04);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-strong: rgba(255, 255, 255, 0.07);
    --glass-blur: 20px;
    --glass-blur-strong: 32px;

    /* Text */
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --text-faint: #64748b;
    --text-on-color: #ffffff;

    /* Brand — electric cyan + warm amber */
    --primary: #38bdf8;
    --primary-hover: #7dd3fc;
    --primary-text: #7dd3fc;
    --secondary: #f59e0b;
    --secondary-hover: #fbbf24;
    --accent: #38bdf8;

    /* Semantic */
    --success: #34d399;
    --warning: #fbbf24;
    --danger: #fb7185;

    /* Borders & Surfaces */
    --border: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.05);
    --border-focus: rgba(56, 189, 248, 0.40);
    --surface-hover: rgba(255, 255, 255, 0.04);
    --surface-active: rgba(255, 255, 255, 0.07);

    /* Primary tints */
    --primary-5: rgba(56, 189, 248, 0.06);
    --primary-8: rgba(56, 189, 248, 0.09);
    --primary-10: rgba(56, 189, 248, 0.12);
    --primary-15: rgba(56, 189, 248, 0.17);
    --primary-25: rgba(56, 189, 248, 0.25);

    /* Secondary (amber) tints */
    --secondary-8: rgba(245, 158, 11, 0.09);
    --secondary-15: rgba(245, 158, 11, 0.16);

    /* Gradients */
    --gradient: linear-gradient(135deg, #38bdf8, #818cf8, #f59e0b);
    --gradient-accent: linear-gradient(135deg, #38bdf8, #f59e0b);
    --gradient-geo: linear-gradient(135deg, rgba(56, 189, 248, 0.15), rgba(129, 140, 248, 0.10), rgba(245, 158, 11, 0.08));

    /* Spacing & Styling */
    --radius: 16px;
    --radius-sm: 12px;
    --shadow: 0 4px 16px rgba(0, 0, 0, 0.30), 0 1px 3px rgba(0, 0, 0, 0.20);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.45);
    --shadow-glow: 0 0 30px rgba(56, 189, 248, 0.12);
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);

    /* Overlay */
    --overlay: rgba(0, 0, 0, 0.65);
    --overlay-heavy: rgba(0, 0, 0, 0.80);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
    transition: opacity 0.3s ease;
}
body.screen-transitioning { opacity: 0; }

/* ===== ANIMATED GEOMETRIC BACKGROUND ===== */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 15% 25%, rgba(56, 189, 248, 0.10) 0%, transparent 55%),
        radial-gradient(ellipse 60% 80% at 85% 65%, rgba(129, 140, 248, 0.08) 0%, transparent 55%),
        radial-gradient(ellipse 50% 50% at 50% 80%, rgba(245, 158, 11, 0.06) 0%, transparent 55%);
    pointer-events: none;
    z-index: 0;
    animation: bgPulse 10s ease-in-out infinite alternate;
}

@keyframes bgPulse {
    0% { opacity: 0.8; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.02); }
    100% { opacity: 0.85; transform: scale(1.01); }
}

/* Tron grid overlay */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(56, 189, 248, 0.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(56, 189, 248, 0.07) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
    mask-image: radial-gradient(ellipse 100% 100% at 50% 50%, black 10%, transparent 65%);
    -webkit-mask-image: radial-gradient(ellipse 100% 100% at 50% 50%, black 10%, transparent 65%);
}

#app {
    position: relative;
    z-index: 1;
}

/* Tron glowing line pulses — snapped to 50px grid */
.geo-bg {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

/* === Glow lines — all same style, all left-to-right / top-to-bottom, just offset in time === */
.glow-h {
    position: absolute;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.50) 40%, rgba(56, 189, 248, 0.65) 50%, rgba(56, 189, 248, 0.50) 60%, transparent);
    background-size: 25% 100%;
    background-repeat: no-repeat;
    box-shadow: 0 0 8px rgba(56, 189, 248, 0.30), 0 0 20px rgba(56, 189, 248, 0.12);
    animation: lineH 6s linear infinite;
}
.glow-h:nth-child(1)  { top: 100px; animation-duration: 5.0s; animation-delay: 0s; }
.glow-h:nth-child(2)  { top: 250px; animation-duration: 7.3s; animation-delay: -2.1s; }
.glow-h:nth-child(3)  { top: 400px; animation-duration: 6.1s; animation-delay: -4.7s; }
.glow-h:nth-child(4)  { top: 550px; animation-duration: 8.4s; animation-delay: -1.3s; }
.glow-h:nth-child(5)  { top: 700px; animation-duration: 5.7s; animation-delay: -3.9s; }
.glow-h:nth-child(6)  { top: 850px; animation-duration: 7.8s; animation-delay: -5.5s; }

.glow-v {
    position: absolute;
    top: 0;
    width: 1px;
    height: 100%;
    background: linear-gradient(180deg, transparent, rgba(56, 189, 248, 0.50) 40%, rgba(56, 189, 248, 0.65) 50%, rgba(56, 189, 248, 0.50) 60%, transparent);
    background-size: 100% 25%;
    background-repeat: no-repeat;
    box-shadow: 0 0 8px rgba(56, 189, 248, 0.30), 0 0 20px rgba(56, 189, 248, 0.12);
    animation: lineV 6s linear infinite;
}
.glow-v:nth-child(7)  { left: 50px;  animation-duration: 6.3s; animation-delay: -0.8s; }
.glow-v:nth-child(8)  { left: 200px; animation-duration: 8.1s; animation-delay: -3.4s; }
.glow-v:nth-child(9)  { left: 350px; animation-duration: 5.4s; animation-delay: -5.9s; }
.glow-v:nth-child(10) { left: 500px; animation-duration: 7.6s; animation-delay: -2.2s; }
.glow-v:nth-child(11) { left: 650px; animation-duration: 6.8s; animation-delay: -4.5s; }
.glow-v:nth-child(12) { left: 800px; animation-duration: 5.9s; animation-delay: -1.6s; }

@keyframes lineH {
    0% { background-position: -25% 0; }
    100% { background-position: 125% 0; }
}
@keyframes lineV {
    0% { background-position: 0 -25%; }
    100% { background-position: 0 125%; }
}

@media (min-width: 1200px) {
    .glow-v:nth-child(7)  { left: 100px; }
    .glow-v:nth-child(8)  { left: 300px; }
    .glow-v:nth-child(9)  { left: 500px; }
    .glow-v:nth-child(10) { left: 700px; }
    .glow-v:nth-child(11) { left: 900px; }
    .glow-v:nth-child(12) { left: 1100px; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(56, 189, 248, 0.15); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(56, 189, 248, 0.25); }
.chat-body::-webkit-scrollbar { width: 4px; }
.chat-body::-webkit-scrollbar-thumb { background: var(--text-faint); }

/* ===== GLASS MIXIN (reusable pattern) ===== */
/* Applied via classes — base glass card style */

/* ===== TOP BAR — See-through Glass ===== */
#top-bar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-bottom: none;
}

.logo {
    font-weight: 800;
    font-size: 1.1rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-logo {
    font-weight: 900;
    font-size: 1.05rem;
    letter-spacing: -0.02em;
    color: #ffffff;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-logo:hover {
    opacity: 0.8;
}
.nav-logo.nav-logo-hidden {
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
}
.nav-logo.nav-logo-bounce {
    animation: logoBounceIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes logoBounceIn {
    0% { transform: translateY(-100%); opacity: 0; }
    60% { transform: translateY(4px); opacity: 1; }
    100% { transform: translateY(0); opacity: 1; }
}
.top-left {
    display: flex;
    gap: 8px;
    align-items: center;
}
.top-right {
    display: flex;
    gap: 12px;
    align-items: center;
}

/* Hamburger menu */
.nav-menu-wrapper {
    position: relative;
}
.nav-hamburger {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 5px;
    z-index: 12;
}
.nav-hamburger span {
    display: block;
    width: 20px;
    height: 1.5px;
    background: var(--text);
    transition: all 0.3s;
}
.nav-hamburger:hover span {
    background: var(--primary);
}
.nav-menu {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: rgba(10, 13, 20, 0.90);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 6px 0;
    min-width: 170px;
    z-index: 200;
    box-shadow: var(--shadow-lg);
    animation: fadeIn 0.15s ease;
}
.nav-menu.open { display: block; }
.nav-menu-item {
    display: block;
    padding: 10px 20px;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    font-family: inherit;
}
.nav-menu-item:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.05);
}
.nav-menu-divider {
    height: 1px;
    background: var(--glass-border);
    margin: 4px 0;
}
.nav-menu-user {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
}
.nav-menu-badge {
    font-size: 1rem;
}
.nav-menu-name {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text);
}

.xp-badge, .boost-badge {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 6px 14px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.9rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.xp-badge {
    background: rgba(56, 189, 248, 0.10);
    border: 1px solid rgba(56, 189, 248, 0.20);
    color: #7dd3fc;
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.08);
}
.boost-badge {
    background: rgba(52, 211, 153, 0.08);
    border: 1px solid rgba(52, 211, 153, 0.18);
    color: var(--success);
    font-size: 0.75rem;
}
.badge-label {
    font-size: 0.55rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.85;
}

.xp-badge .badge-label { color: #7dd3fc; }
.streak-badge {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.85rem;
    background: rgba(251, 191, 36, 0.10);
    border: 1px solid rgba(251, 191, 36, 0.20);
    color: #fbbf24;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 0 20px rgba(251, 191, 36, 0.06);
}
.streak-badge .badge-label { color: #fbbf24; }

.timer-pill {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: 20px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 0 24px rgba(56, 189, 248, 0.10);
}

/* ===== SCREENS ===== */
.screen {
    display: none;
    padding: 16px 20px;
    max-width: 720px;
    margin: 0 auto;
}
.screen.active { display: block; }
.screen.fade-in { animation: fadeIn 0.35s ease; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.back-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.95rem;
    cursor: pointer;
    padding: 8px 0;
    margin-bottom: 12px;
    transition: var(--transition);
}
.back-btn:hover { color: var(--primary); }

/* ===== LANDING HERO (visitors) ===== */
#screen-home.logged-in .landing-hero { display: none; }
#screen-home:not(.logged-in) .home-hero,
#screen-home:not(.logged-in) .readiness-section,
#screen-home:not(.logged-in) .home-section,
#screen-home:not(.logged-in) .unlock-banner,
#screen-home:not(.logged-in) .tip-carousel,
#screen-home:not(.logged-in) .sign-in-prompt,
#screen-home:not(.logged-in) .resume-banner { display: none !important; }

.landing-hero {
    text-align: center;
    padding: 40px 0 24px;
    max-width: 640px;
    margin: 0 auto;
}
.landing-logo {
    font-size: 3.2rem;
    font-weight: 900;
    letter-spacing: -0.04em;
    color: #ffffff;
    margin-bottom: 16px;
}
.landing-headline {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1.2;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}
.landing-sub {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 32px;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}
.landing-subjects {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 32px;
    text-align: left;
}
.landing-subject-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}
.landing-subject-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}
.landing-subject-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-focus);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}
.landing-subject-icon {
    flex-shrink: 0;
    width: 46px;
    height: 46px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
}
.landing-subject-icon svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}
.lsi-sf { color: #00A1E0; border-color: rgba(0, 161, 224, 0.25); background: rgba(0, 161, 224, 0.08); }
.lsi-ca { color: #D97706; border-color: rgba(217, 119, 6, 0.25); background: rgba(217, 119, 6, 0.08); }
.lsi-aws { color: #FF9900; border-color: rgba(255, 153, 0, 0.25); background: rgba(255, 153, 0, 0.08); }
.lsi-az { color: #0078D4; border-color: rgba(0, 120, 212, 0.25); background: rgba(0, 120, 212, 0.08); }
.landing-subject-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}
.landing-subject-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text);
}
.landing-subject-detail {
    font-size: 0.72rem;
    color: var(--text-muted);
    line-height: 1.4;
}
.landing-subject-count {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--primary-text);
    margin-top: 2px;
}
.landing-subject-arrow {
    font-size: 1.2rem;
    color: var(--text-muted);
    flex-shrink: 0;
    transition: all var(--transition);
}
.landing-subject-card:hover .landing-subject-arrow {
    transform: translateX(3px);
    color: var(--primary);
}
.landing-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 32px;
    text-align: left;
}
.landing-feature {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}
.landing-feature-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: rgba(56, 189, 248, 0.10);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(56, 189, 248, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-text);
}
.landing-feature-title {
    display: block;
    font-weight: 700;
    font-size: 0.8rem;
    color: var(--text);
    margin-bottom: 2px;
}
.landing-feature-desc {
    display: block;
    font-size: 0.7rem;
    color: var(--text-muted);
    line-height: 1.4;
}
.landing-cta {
    display: block;
    width: 100%;
    padding: 14px 24px;
    margin-bottom: 10px;
    background: rgba(56, 189, 248, 0.10);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}
.landing-cta::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.08), transparent);
    animation: shimmer 3s infinite;
}
@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}
.landing-cta:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
    background: rgba(56, 189, 248, 0.15);
}
.landing-cta-secondary {
    display: block;
    width: 100%;
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}
.landing-cta-secondary:hover {
    border-color: rgba(255, 255, 255, 0.20);
    color: #fff;
    background: rgba(255, 255, 255, 0.07);
}
.landing-social-proof {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-bottom: 28px;
    padding: 16px 0;
}
.landing-proof-item { text-align: center; }
.landing-proof-number {
    display: block;
    font-size: 1.4rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.landing-proof-label {
    display: block;
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
}
.landing-proof-divider {
    width: 1px;
    height: 32px;
    background: var(--glass-border);
}
.landing-guarantee {
    margin-top: 16px;
    font-size: 0.72rem;
    color: var(--text-muted);
    text-align: center;
}
@media (max-width: 600px) {
    .landing-hero { padding: 24px 0 16px; }
    .landing-logo { font-size: 2.4rem; margin-bottom: 12px; }
    .landing-headline { font-size: 1.4rem; }
    .landing-sub { font-size: 0.85rem; margin-bottom: 24px; }
    .landing-features { grid-template-columns: 1fr; gap: 12px; }
    .landing-subject-card { padding: 14px 16px; }
    .landing-social-proof { gap: 14px; }
    .landing-proof-number { font-size: 1.1rem; }
}

/* ===== HOME SCREEN ===== */
.home-hero {
    text-align: center;
    padding: 12px 0 16px;
}
.home-logo {
    font-size: 3.2rem;
    font-weight: 900;
    letter-spacing: -0.04em;
    color: #ffffff;
    margin-bottom: 4px;
}
.home-tagline {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* Cert Selector */
/* Cert dropdown (mobile) */
.cert-dropdown {
    display: block;
    position: relative;
    margin-top: 12px;
}
.cert-dropdown-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: border-color 0.2s;
}
.cert-dropdown-btn:hover {
    border-color: var(--border-focus);
}
.cert-dropdown-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
    flex-shrink: 0;
    box-shadow: 0 0 8px rgba(56, 189, 248, 0.4);
}
.cert-dropdown-arrow {
    margin-left: auto;
    opacity: 0.4;
    transition: transform 0.2s;
}
.cert-dropdown-menu.open ~ .cert-dropdown-btn .cert-dropdown-arrow,
.cert-dropdown-menu.open + .cert-dropdown-arrow {
    transform: rotate(180deg);
}

.cert-dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    background: rgba(18, 22, 32, 0.90);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    overflow: hidden;
    z-index: 100;
    box-shadow: var(--shadow-lg);
}
.cert-dropdown-menu.open {
    display: block;
}
.cert-dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 12px 16px;
    background: none;
    border: none;
    border-bottom: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s;
    text-align: left;
}
.cert-dropdown-item:last-child {
    border-bottom: none;
}
.cert-dropdown-item:hover {
    background: var(--surface-hover);
}
.cert-dropdown-active {
    color: var(--text);
    font-weight: 700;
}
.cert-dropdown-locked {
    opacity: 0.5;
}
.cert-dropdown-name {
    flex: 1;
}
.cert-dropdown-badge {
    font-size: 0.55rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-on-color);
    background: var(--gradient-accent);
    padding: 3px 10px;
    border-radius: 20px;
}
.cert-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* Cert inline peek (mobile) */
.cert-peek {
    margin-top: 8px;
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 16px;
    position: relative;
    animation: fadeIn 0.15s ease;
}
.cert-peek-close {
    position: absolute;
    top: 8px;
    right: 12px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1rem;
    cursor: pointer;
    padding: 4px 8px;
    opacity: 0.5;
}
.cert-peek .cd-header h2 { font-size: 0.95rem; }
.cert-peek .cd-desc { font-size: 0.75rem; }
.cert-peek .cd-stats { grid-template-columns: repeat(4, 1fr); gap: 6px; }
.cert-peek .cd-stat-val { font-size: 0.8rem; }
.cert-peek .cd-stat-label { font-size: 0.55rem; }
@media (min-width: 601px) {
    .cert-peek { display: none !important; }
}

/* Subject selector */
.subject-selector {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    justify-content: center;
    margin: 20px auto 8px;
    max-width: 580px;
    padding: 0 16px;
}
.subject-card {
    padding: 12px 10px;
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.25s ease;
    text-align: center;
    font-family: inherit;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    position: relative;
    overflow: hidden;
}
.subject-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.15), transparent);
}
.subject-card:hover {
    background: var(--glass-strong);
    border-color: var(--border-focus);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}
.subject-card-active {
    background: var(--glass-strong);
    border-color: rgba(56, 189, 248, 0.25);
    color: var(--text);
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.10);
}
.subject-card-active::before {
    background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.30), transparent);
}
.subject-card-active:hover {
    border-color: rgba(56, 189, 248, 0.25);
}
.subject-card-name {
    display: block;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    line-height: 1.2;
}
.subject-card-meta {
    display: block;
    font-size: 0.62rem;
    margin-top: 2px;
    opacity: 0.8;
    font-weight: 500;
    line-height: 1.3;
    color: var(--text-muted);
}
@media (max-width: 600px) {
    .subject-selector {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        max-width: 320px;
        padding: 0 12px;
    }
    .subject-card {
        padding: 16px 10px;
    }
    .subject-card-name {
        font-size: 0.80rem;
    }
}

/* Cert tab bar (desktop only) */
.cert-selector {
    display: none;
    gap: 0;
    justify-content: center;
    margin-top: 12px;
    border-bottom: 1px solid var(--glass-border);
}
@media (min-width: 601px) {
    .cert-dropdown { display: none; }
    .cert-selector { display: flex; }
}
.cert-selector::-webkit-scrollbar { display: none; }
.cert-tab {
    padding: 10px 16px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    border-radius: 0;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.72rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    text-align: center;
    white-space: nowrap;
    flex-shrink: 0;
    letter-spacing: 0.02em;
}
.cert-tab:hover {
    color: var(--text);
}
.cert-tab-active {
    color: var(--text);
}
/* AWS cert colors */
.cert-tab[data-cert="aws-ccp"].cert-tab-active {
    border-bottom-color: #FF9900;
    color: #FF9900;
}
/* Azure cert colors */
.cert-tab[data-cert="az-900"].cert-tab-active {
    border-bottom-color: #0078D4;
    color: #0078D4;
}
/* Salesforce cert colors */
.cert-tab[data-cert="sf-admin"].cert-tab-active {
    border-bottom-color: #00A1E0;
    color: #00A1E0;
}
.cert-tab[data-cert="sf-advadmin"].cert-tab-active {
    border-bottom-color: #1B96FF;
    color: #1B96FF;
}
.cert-tab[data-cert="sf-appbuilder"].cert-tab-active {
    border-bottom-color: #0D9DDA;
    color: #0D9DDA;
}
.cert-tab[data-cert="sf-salescloud"].cert-tab-active {
    border-bottom-color: #2E844A;
    color: #2E844A;
}
.cert-tab[data-cert="sf-servicecloud"].cert-tab-active {
    border-bottom-color: #CB65FF;
    color: #CB65FF;
}
/* Claude Architect cert colors */
.cert-tab[data-cert="agentic"].cert-tab-active {
    border-bottom-color: #D97706;
    color: #D97706;
}
.cert-tab[data-cert="claudecode"].cert-tab-active {
    border-bottom-color: #D97706;
    color: #D97706;
}
.cert-tab[data-cert="prompting"].cert-tab-active {
    border-bottom-color: #D97706;
    color: #D97706;
}
.cert-tab[data-cert="tooldesign"].cert-tab-active {
    border-bottom-color: #D97706;
    color: #D97706;
}
.cert-tab[data-cert="context"].cert-tab-active {
    border-bottom-color: #D97706;
    color: #D97706;
}

.cert-lock {
    font-size: 0.55rem;
    margin-right: 3px;
}
.cert-tab-badge {
    font-size: 0.45rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-on-color);
    background: var(--gradient-accent);
    padding: 2px 8px;
    border-radius: 20px;
    vertical-align: middle;
    margin-left: 2px;
}
.cert-tab-locked {
    color: var(--text-faint);
    cursor: default;
}

/* Mock Mode Modal */
.mock-mode-modal {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 24px;
    max-width: 360px;
    width: 100%;
    animation: fadeIn 0.2s ease;
    box-shadow: var(--shadow-lg);
}
.mock-mode-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}
.mock-mode-header h2 {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0;
}
.mock-mode-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}
.mock-mode-options {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.mock-mode-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    text-align: left;
    transition: all var(--transition);
}
.mock-mode-btn:hover {
    border-color: var(--border-focus);
    background: var(--glass-strong);
    box-shadow: var(--shadow-glow);
}
.mock-mode-icon {
    font-size: 1.3rem;
    flex-shrink: 0;
}
.mock-mode-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text);
    display: block;
}
.mock-mode-sub {
    font-size: 0.65rem;
    color: var(--text-muted);
    display: block;
}

.mock-close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 4px 8px;
    opacity: 0.5;
    transition: opacity 0.2s;
}
.mock-close-btn:hover {
    opacity: 1;
}

/* Quick Quiz Slider */
.quick-quiz-slider {
    text-align: center;
    padding: 8px 0 16px;
}
.quick-quiz-count {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 12px;
    text-shadow: 0 0 20px rgba(56, 189, 248, 0.3);
}
.quick-quiz-slider input[type="range"] {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    background: var(--glass-border);
    border-radius: 2px;
    outline: none;
}
.quick-quiz-slider input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    box-shadow: 0 0 12px rgba(56, 189, 248, 0.4);
}
.quick-quiz-slider input[type="range"]::-moz-range-thumb {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: none;
    box-shadow: 0 0 12px rgba(56, 189, 248, 0.4);
}
.quick-quiz-range-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 6px;
    opacity: 0.5;
}
.quick-quiz-start {
    width: 100%;
    margin-top: 4px;
}

/* Cert Info Button */
.cert-info {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--glass-border);
    font-size: 0.55rem;
    font-weight: 700;
    font-style: italic;
    margin-left: 4px;
    vertical-align: middle;
    opacity: 0.7;
    transition: opacity var(--transition);
}
.cert-info:hover { opacity: 1; }

/* Cert Detail Modal */
.cd-modal {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 24px;
    max-width: 420px;
    width: 100%;
    position: relative;
    animation: fadeIn 0.15s ease;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}
.cd-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    padding-right: 24px;
}
.cd-header h2 {
    font-size: 1.1rem;
    font-weight: 800;
    margin: 0;
}
.cd-level {
    font-size: 0.6rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.cd-level-beginner { background: rgba(52, 211, 153, 0.12); color: var(--success); }
.cd-level-intermediate { background: rgba(251, 191, 36, 0.15); color: var(--warning); }
.cd-level-advanced { background: rgba(251, 113, 133, 0.15); color: var(--danger); }

.cd-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 16px;
}
.cd-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    margin-bottom: 16px;
}
.cd-stat {
    background: var(--glass);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 10px 6px;
    text-align: center;
}
.cd-stat-val {
    display: block;
    font-size: 0.9rem;
    font-weight: 800;
    color: var(--text);
}
.cd-stat-label {
    font-size: 0.55rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.cd-section {
    margin-bottom: 14px;
}
.cd-section-label {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 6px;
    display: block;
}
.cd-prereq-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 6px;
}
.cd-prereq-none {
    background: rgba(52, 211, 153, 0.1);
    color: var(--success);
}
.cd-prereq-done {
    background: rgba(52, 211, 153, 0.1);
    color: var(--success);
}
.cd-prereq-locked {
    background: rgba(251, 113, 133, 0.1);
    color: var(--danger);
}
.cd-topics {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}
.cd-topic {
    font-size: 0.65rem;
    padding: 3px 8px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 4px;
    color: var(--text-muted);
}
.cd-next {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}
.cert-next-btn {
    padding: 6px 12px;
    background: var(--glass);
    border: 1px solid var(--primary-15);
    border-radius: 6px;
    color: var(--primary);
    font-family: inherit;
    font-size: 0.7rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}
.cert-next-btn:hover {
    border-color: var(--border-focus);
    background: var(--primary-8);
}
.cd-start {
    width: 100%;
    padding: 12px;
    margin-top: 16px;
    background: rgba(56, 189, 248, 0.15);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(56, 189, 248, 0.30);
    color: white;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition);
}
.cd-start:hover {
    background: rgba(56, 189, 248, 0.25);
    box-shadow: var(--shadow-glow);
}
.cd-locked-msg {
    display: inline-block;
    margin-top: 16px;
    padding: 6px 16px;
    background: var(--gradient-accent);
    border: none;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-on-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-align: center;
    cursor: pointer;
    font-family: inherit;
    transition: opacity 0.2s;
}
.cd-locked-msg:hover {
    opacity: 0.85;
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Resume Banner */
.resume-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid rgba(56, 189, 248, 0.15);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    margin: 0 0 16px;
}
.resume-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.resume-title {
    font-size: 0.85rem;
    font-weight: 700;
}
.resume-info {
    font-size: 0.7rem;
    color: var(--text-muted);
}
.resume-actions {
    display: flex;
    gap: 6px;
}

/* Unlock Banner — Glass with geometric accent */
.unlock-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 28px 18px 14px 18px;
    margin-bottom: 16px;
    position: relative;
    overflow: hidden;
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: var(--shadow);
}
.unlock-banner::before {
    content: '';
    position: absolute;
    top: -50%; right: -20%;
    width: 200px; height: 200px;
    clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
    background: rgba(56, 189, 248, 0.04);
    animation: geoSpin 20s linear infinite;
    pointer-events: none;
}
.unlock-banner::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.3), transparent);
}
@keyframes geoSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
.unlock-banner:hover {
    border-color: rgba(245, 158, 11, 0.30);
    box-shadow: var(--shadow-md), 0 0 30px rgba(245, 158, 11, 0.08);
}
.unlock-banner.unlock-shake {
    animation: unlockAlarm 0.6s ease;
}
@keyframes unlockAlarm {
    0%, 100% { transform: translateX(0); }
    10% { transform: translateX(-4px); }
    20% { transform: translateX(4px); }
    30% { transform: translateX(-4px); }
    40% { transform: translateX(4px); }
    50% { transform: translateX(-3px); }
    60% { transform: translateX(3px); }
    70% { transform: translateX(-2px); }
    80% { transform: translateX(2px); }
    90% { transform: translateX(-1px); }
}
@keyframes bannerShine {
    0% { transform: skewX(20deg) translateX(-160%); }
    100% { transform: skewX(20deg) translateX(260%); }
}
.unlock-ribbon {
    position: absolute;
    top: -1px;
    left: -1px;
    background: var(--text);
    font-size: 0.5rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    color: var(--bg);
    padding: 6px 22px 6px 10px;
    clip-path: polygon(0 0, 100% 0, calc(100% - 12px) 100%, 0 100%);
    z-index: 1;
    border-radius: var(--radius-sm) 0 0 0;
}
.unlock-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
    text-align: center;
}
.unlock-title {
    font-size: 0.85rem;
    font-weight: 800;
    color: var(--text);
}
.unlock-desc {
    font-size: 0.6rem;
    color: var(--text-muted);
}
.unlock-pricing {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 1px;
    white-space: nowrap;
}
.unlock-original {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-decoration: line-through;
    opacity: 0.65;
}
.unlock-price {
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--text);
    line-height: 1;
}
.unlock-limited {
    font-size: 0.55rem;
    font-weight: 700;
    color: #fbbf24;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Readiness Section — Glass panel */
.readiness-section {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.readiness-bar-container {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 24px 22px 20px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}
.readiness-bar-container::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.2), transparent);
}
.readiness-bar-container::after { display: none; }
.readiness-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--glass-border);
    position: relative;
    z-index: 1;
}
.readiness-label {
    font-size: 0.9rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--primary);
    text-shadow: 0 0 20px rgba(56, 189, 248, 0.3);
}
.readiness-pct {
    font-size: 1.8rem;
    font-weight: 900;
    letter-spacing: -0.03em;
    color: var(--text);
}
.readiness-track {
    height: 6px;
    background: var(--glass-strong);
    border-radius: 3px;
    position: relative;
    overflow: hidden;
}
.readiness-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1), background 0.5s ease;
    background: var(--danger);
    box-shadow: 0 0 10px rgba(251, 113, 133, 0.3);
}
.readiness-threshold {
    position: absolute;
    left: 65%;
    top: -2px;
    bottom: -2px;
    width: 2px;
    background: var(--glass-border);
    border-radius: 1px;
}
.readiness-sub {
    font-size: 0.5rem;
    color: var(--text-muted);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    position: relative;
    z-index: 1;
    opacity: 0.45;
    font-weight: 500;
    margin-bottom: 2px;
    margin-top: -6px;
}
/* Topic Graph — horizontal rows */
.topic-graph {
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    z-index: 1;
}
.topic-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 7px 14px;
    align-items: center;
    padding: 0 10px;
    margin: 0 -10px;
    border-radius: 4px;
    transition: background 0.3s ease;
    cursor: default;
}
.topic-row:hover {
    background: var(--primary-8);
}
.topic-row:hover .topic-row-name {
    color: var(--primary);
}
.topic-row:hover .topic-row-bar {
    background: var(--glass-border);
}
.topic-row:hover .topic-row-fill {
    filter: brightness(1.2);
}
/* Touch / mobile */
@media (hover: none), (pointer: coarse), (max-width: 768px) {
    .topic-row {
        -webkit-tap-highlight-color: transparent;
        transition: none !important;
    }
    .topic-row:hover,
    .topic-row:active {
        background: none !important;
        box-shadow: none !important;
        transform: none !important;
    }
    .topic-row:hover .topic-row-name,
    .topic-row:active .topic-row-name { color: var(--text) !important; }
    .topic-row:hover .topic-row-bar,
    .topic-row:active .topic-row-bar { background: var(--glass-border) !important; }
    .topic-row:hover .topic-row-fill,
    .topic-row:active .topic-row-fill { filter: none !important; }
}
/* Mobile: modern phones */
@media (max-width: 430px) {
    .readiness-section {
        margin-bottom: 14px;
    }
    .readiness-bar-container {
        border-radius: 14px;
        padding: 18px 16px 14px;
    }
    .readiness-header {
        margin-bottom: 16px;
    }
    .readiness-label {
        font-size: 0.72rem;
    }
    .readiness-pct {
        font-size: 1.3rem;
    }
    .readiness-sub {
        font-size: 0.5rem;
        margin-top: 12px;
    }
    .topic-graph {
        gap: 2px;
    }
    .topic-row {
        min-height: 44px;
        padding: 8px 8px;
        margin: -8px -8px;
        gap: 5px 10px;
        border-radius: 8px;
    }
    .topic-row-name {
        font-size: 0.64rem;
    }
    .topic-row-pct {
        font-size: 0.6rem;
    }
    .topic-row-bar {
        height: 5px;
        border-radius: 2.5px;
    }
    .topic-row-fill {
        border-radius: 2.5px;
    }
}
/* Small phones */
@media (max-width: 375px) {
    .readiness-bar-container {
        border-radius: 12px;
        padding: 16px 14px 12px;
    }
    .readiness-label {
        font-size: 0.65rem;
        letter-spacing: 0.1em;
    }
    .readiness-pct {
        font-size: 1.15rem;
    }
    .topic-row-name {
        font-size: 0.58rem;
    }
    .topic-row-pct {
        font-size: 0.55rem;
    }
}
.topic-row-name {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.2;
    grid-column: 1;
    letter-spacing: 0.01em;
    opacity: 0.85;
}
.topic-row-pct {
    font-size: 0.6rem;
    font-weight: 800;
    text-align: right;
    white-space: nowrap;
    line-height: 1;
    grid-column: 2;
    font-variant-numeric: tabular-nums;
}
.topic-row-bar {
    grid-column: 1 / -1;
    height: 8px;
    background: var(--glass-strong);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
}
.topic-row-fill {
    width: 100% !important;
    height: 100%;
    border-radius: 4px;
    background: linear-gradient(90deg, var(--danger) 0%, var(--warning) 50%, var(--success) 100%);
    transition: clip-path 1s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}
.topic-row-fill::after { display: none; }

/* Next Step Card */
.next-step-card {
    margin-top: 18px;
    padding: 12px 14px;
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}
.next-step-card:hover {
    background: var(--glass-strong);
    border-color: var(--border-focus);
    box-shadow: var(--shadow-glow);
}
.next-step-body {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.next-step-text {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}
.next-step-tag {
    font-size: 0.48rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--primary-text);
    opacity: 0.7;
}
.next-step-title {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.next-step-desc {
    font-size: 0.55rem;
    color: var(--text-muted);
    line-height: 1.4;
}
.next-step-arrow {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-muted);
    flex-shrink: 0;
    transition: all 0.3s ease;
}
.next-step-card:hover .next-step-arrow {
    color: var(--primary);
    transform: translateX(3px);
}
@media (hover: none) {
    .next-step-card:hover {
        background: var(--primary-5);
        border-color: var(--primary-10);
        box-shadow: none;
    }
    .next-step-card:hover .next-step-arrow {
        color: rgba(56, 189, 248, 0.6);
        transform: none;
    }
    .next-step-card:active {
        background: var(--primary-15);
        border-color: var(--border-focus);
    }
    .next-step-card:active .next-step-arrow {
        color: var(--primary);
    }
}

/* Tip Card */
.tip-carousel {
    margin: 14px 0;
}
.tip-card {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 22px 24px 16px;
    min-height: 10vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}
.tip-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(129, 140, 248, 0.15), transparent);
}
.tip-quote {
    font-family: Georgia, serif;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary);
    opacity: 0.4;
    vertical-align: middle;
}
.tip-body {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.65;
    font-style: italic;
    letter-spacing: 0.01em;
    text-align: center;
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}
.tip-body.tip-out {
    opacity: 0;
    transform: translateY(10px);
}
.tip-body.tip-in {
    opacity: 0;
    transform: translateY(-10px);
}
.tip-dots {
    display: flex;
    justify-content: center;
    gap: 5px;
    margin-top: 14px;
}
.tip-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--glass-border);
    transition: all 0.3s ease;
}
.tip-dot.active {
    background: var(--primary);
    opacity: 0.7;
    width: 14px;
    border-radius: 3px;
    box-shadow: 0 0 8px rgba(56, 189, 248, 0.3);
}

/* Home Section */
.home-section {
    margin-bottom: 16px;
}
.home-section-label {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
}
.home-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}
.home-grid.home-grid-3 {
    grid-template-columns: 1fr 1fr 1fr;
}

/* Glass Home Cards */
.home-card {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 16px 12px;
    text-align: center;
    min-height: 19vh;
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    font-family: inherit;
    color: var(--text);
    position: relative;
    overflow: hidden;
}
.home-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 10%, rgba(56, 189, 248, 0.25) 50%, transparent 90%);
}
.home-card::after {
    content: '';
    position: absolute;
    top: 0; left: 0; bottom: 0;
    width: 1px;
    background: linear-gradient(180deg, rgba(56, 189, 248, 0.20) 0%, transparent 60%);
}
.home-card:hover {
    border-color: var(--border-focus);
    background: var(--bg-card-hover);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}
.home-card:active { transform: scale(0.98); }
.home-card-primary {
    border-color: rgba(56, 189, 248, 0.15);
    background: rgba(56, 189, 248, 0.06);
}
.home-card-primary::before {
    background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.15), transparent);
}
.home-card-primary:hover {
    background: rgba(56, 189, 248, 0.12);
    border-color: var(--primary);
}
.home-card-title {
    font-size: 0.85rem;
    font-weight: 700;
    margin-top: 2px;
}
.home-card-desc {
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-top: 2px;
    flex: 1;
}
.home-card-cert {
    font-size: 0.55rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.home-card-meta {
    font-size: 0.6rem;
    color: var(--primary-text);
    margin-top: 2px;
}
.home-card-locked {
    pointer-events: none;
    filter: brightness(0.7) saturate(0.6);
}
.home-card-wide {
    grid-column: 1 / -1;
}

/* Carousel */
.carousel-container {
    overflow: hidden;
    position: relative;
}
.carousel-track {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    padding: 4px 0 8px;
}
.carousel-track::-webkit-scrollbar { display: none; }
.carousel-card {
    flex: 0 0 calc(50% - 4px);
    scroll-snap-align: start;
    min-height: 19vh;
    justify-content: center;
}
.carousel-card .home-card-icon {
    line-height: 1;
    margin-bottom: 6px;
    color: var(--primary-text);
}
.carousel-card .home-card-icon svg {
    width: 22px;
    height: 22px;
    filter: drop-shadow(0 0 6px rgba(56, 189, 248, 0.3));
}
.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 2px;
    margin-top: 8px;
}
.carousel-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: transparent;
    border: none;
    padding: 0;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}
.carousel-dot::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--glass-border);
    transition: all 0.3s ease;
}
.carousel-dot.active::after {
    background: var(--primary);
    width: 18px;
    border-radius: 3px;
    box-shadow: 0 0 8px rgba(56, 189, 248, 0.4);
}
.carousel-dot.end::after {
    background: var(--primary);
    width: 18px;
    height: 6px;
    border-radius: 3px;
}
.carousel-dot.dot-bounce {
    animation: dotBounce 1.5s ease 2s infinite;
}
@keyframes dotBounce {
    0%, 100% { transform: translateY(0); }
    25% { transform: translateY(-4px); }
    50% { transform: translateY(0); }
    75% { transform: translateY(-2px); }
}
@media (min-width: 900px) {
    .carousel-card { flex: 0 0 calc(33.333% - 6px); }
}

/* Sign In Prompt — Glass */
.sign-in-prompt {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 20px;
    margin: 0 0 16px;
    background: rgba(56, 189, 248, 0.05);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid rgba(56, 189, 248, 0.12);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}
.sign-in-prompt::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.2), transparent);
}
.sign-in-prompt::after { display: none; }
.sign-in-prompt:hover {
    border-color: var(--primary);
    background: rgba(56, 189, 248, 0.10);
    box-shadow: var(--shadow-glow);
}
.sign-in-title {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.03em;
    line-height: 1.6;
    text-transform: uppercase;
}
.sign-in-title strong {
    color: var(--primary);
    font-weight: 800;
}
.signup-cta {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-on-color);
    background: rgba(56, 189, 248, 0.25);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(56, 189, 248, 0.35);
    padding: 9px 18px;
    border-radius: 8px;
    white-space: nowrap;
    transition: all var(--transition);
    letter-spacing: 0.02em;
    flex-shrink: 0;
}
.sign-in-prompt:hover .signup-cta {
    background: rgba(56, 189, 248, 0.35);
    box-shadow: 0 0 16px rgba(56, 189, 248, 0.2);
}

/* Earn Section */
.earn-section {
    margin-bottom: 16px;
}
.earn-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    margin-bottom: 8px;
    font-family: inherit;
}
.earn-toggle {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: inline-block;
}
.earn-toggle-nudge {
    animation: earnNudge 1.5s ease-in-out infinite;
}
@keyframes earnNudge {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(4px); }
}
.earn-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 6px;
}
.earn-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px 6px;
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    transition: all var(--transition);
}
.earn-btn:hover {
    border-color: var(--border-focus);
    background: var(--bg-card-hover);
}
.earn-btn-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text);
}
.earn-btn-reward {
    font-size: 0.6rem;
    font-weight: 700;
    color: var(--success);
}
.earn-btn-twitter { border-left: 2px solid #1da1f2; }
.earn-btn-linkedin { border-left: 2px solid #0077b5; }
.earn-btn-reddit { border-left: 2px solid #ff4500; }
.earn-btn-facebook { border-left: 2px solid #1877f2; }
.earn-btn-instagram { border-left: 2px solid #e1306c; }
.earn-btn-whatsapp { border-left: 2px solid #25d366; }
.earn-btn-telegram { border-left: 2px solid #0088cc; }
.earn-btn-pinterest { border-left: 2px solid #e60023; }
.earn-btn-copy { border-left: 2px solid var(--primary); }
.earn-btn-refer { border-left: 2px solid var(--success); }
.earn-btn-refer {
    grid-column: 1 / -1;
    flex-direction: row;
    justify-content: center;
}
.earn-btn-done {
    display: none;
}
.xp-shop {
    margin-bottom: 16px;
}
.xp-shop-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
}
.xp-shop-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 10px 6px;
    background: rgba(251, 191, 36, 0.04);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(251, 191, 36, 0.12);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    transition: all var(--transition);
}
.xp-shop-btn:hover:not(:disabled) {
    background: rgba(251, 191, 36, 0.10);
    border-color: rgba(251, 191, 36, 0.25);
}
.xp-shop-qty {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--warning);
}
.xp-shop-cost {
    font-size: 0.6rem;
    color: var(--text-muted);
}

/* Progress Ring */
.progress-ring-container {
    position: relative;
    width: 140px;
    height: 140px;
    margin: 16px auto;
}
.progress-ring { width: 100%; height: 100%; transform: rotate(-90deg); }
.progress-ring-bg {
    fill: none;
    stroke: var(--glass-strong);
    stroke-width: 12;
}
.progress-ring-fill {
    fill: none;
    stroke: url(#ring-gradient);
    stroke-width: 12;
    stroke-linecap: round;
    stroke-dasharray: 534;
    stroke-dashoffset: 534;
    transition: stroke-dashoffset 1s cubic-bezier(0.4, 0, 0.2, 1);
    filter: drop-shadow(0 0 6px rgba(56, 189, 248, 0.3));
}
.progress-ring-label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}
.progress-ring-label span {
    font-size: 2rem;
    font-weight: 900;
    display: block;
}
.progress-ring-label small {
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* SVG Gradient */
.ring-gradient-stop1 { stop-color: #38bdf8; }
.ring-gradient-stop2 { stop-color: #f59e0b; }

/* Quick Actions */
.quick-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin: 16px 0;
}

/* Buttons — Glass style */
.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
    background: rgba(56, 189, 248, 0.20);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(56, 189, 248, 0.30);
    color: white;
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.15);
}
.btn-primary:hover {
    background: rgba(56, 189, 248, 0.30);
    box-shadow: 0 0 30px rgba(56, 189, 248, 0.25);
}

.btn-secondary {
    background: var(--primary-15);
    color: var(--secondary);
    border: 1px solid var(--border-focus);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.btn-secondary:hover { background: var(--primary-25); }

.btn-accent {
    background: var(--secondary-15);
    color: var(--secondary);
    border: 1px solid var(--secondary);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.btn-accent:hover { background: rgba(245, 158, 11, 0.25); }

.btn-outline {
    background: var(--glass);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text);
    border: 1px solid var(--glass-border);
}
.btn-outline:hover {
    background: var(--glass-strong);
    border-color: var(--border);
}

.btn-success { background: rgba(52, 211, 153, 0.20); border: 1px solid rgba(52, 211, 153, 0.30); color: white; }
.btn-warning { background: rgba(251, 191, 36, 0.20); border: 1px solid rgba(251, 191, 36, 0.30); color: #1a1d24; }
.btn-danger { background: rgba(251, 113, 133, 0.20); border: 1px solid rgba(251, 113, 133, 0.30); color: white; }

.btn-lg { padding: 16px 28px; font-size: 1.05rem; }
.btn-sm { padding: 10px 16px; font-size: 0.85rem; }
.btn-icon { font-size: 1.2rem; }

/* Pulse animation for primary CTA */
.pulse {
    animation: pulse 2.5s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 0.85; box-shadow: 0 0 20px rgba(56, 189, 248, 0.10); }
    50% { opacity: 1; box-shadow: 0 0 30px rgba(56, 189, 248, 0.25); }
}

/* Stats Row */
.stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin: 0 0 16px;
}
.stat-card {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 12px;
    text-align: center;
}
.stat-number {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--secondary);
}
.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 2px;
}

/* Daily Tip */
.daily-tip {
    padding: 4px 0 0;
    font-size: 0.65rem;
    line-height: 1.5;
    color: var(--text-muted);
    text-align: center;
    opacity: 0.7;
    font-style: italic;
}
.tip-fade-out {
    animation: tipOut 1s ease forwards;
}
.tip-fade-in {
    animation: tipIn 1.2s ease forwards;
}
@keyframes tipOut {
    from { opacity: 0.7; }
    to { opacity: 0; }
}
@keyframes tipIn {
    from { opacity: 0; }
    to { opacity: 0.7; }
}

/* ===== TOPICS SCREEN ===== */
.screen-subtitle {
    color: var(--text-muted);
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.topics-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    padding-bottom: 30px;
}

/* Glass Topic Cards */
.topic-card {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-radius: var(--radius-sm);
    padding: 18px 20px;
    cursor: pointer;
    transition: all var(--transition);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    gap: 14px;
    position: relative;
    overflow: hidden;
}
.topic-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 10%, rgba(56, 189, 248, 0.20) 50%, transparent 90%);
}
.topic-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-focus);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.topic-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
    box-shadow: 0 0 8px currentColor;
}

.topic-info { flex: 1; }
.topic-name {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 4px;
}
.topic-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.topic-free-count {
    font-size: 0.65rem;
    color: var(--primary);
    margin-top: 4px;
}

.topic-progress-bar {
    width: 100%;
    height: 4px;
    background: var(--glass-strong);
    border-radius: 2px;
    margin-top: 8px;
    overflow: hidden;
}
.topic-progress-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.5s ease;
}

.mastery-low { background: var(--danger); box-shadow: 0 0 6px rgba(251, 113, 133, 0.3); }
.mastery-mid { background: var(--warning); box-shadow: 0 0 6px rgba(251, 191, 36, 0.3); }
.mastery-high { background: var(--success); box-shadow: 0 0 6px rgba(52, 211, 153, 0.3); }

/* ===== QUIZ SCREEN ===== */
.quiz-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.quit-btn {
    background: none;
    border: none;
    color: var(--text-faint);
    font-family: inherit;
    font-size: 1rem;
    cursor: pointer;
    padding: 10px;
    min-width: 44px;
    min-height: 44px;
    transition: color var(--transition);
}
.quit-btn:hover {
    color: var(--danger);
}

.prev-btn {
    background: none;
    border: none;
    color: var(--text-faint);
    font-family: inherit;
    font-size: 1rem;
    cursor: pointer;
    padding: 10px;
    min-width: 44px;
    min-height: 44px;
    transition: color var(--transition);
}
.prev-btn:hover {
    color: var(--text);
}

.quiz-progress { flex: 1; display: flex; align-items: center; gap: 10px; }

.next-btn {
    background: none;
    border: none;
    color: var(--text-faint);
    font-family: inherit;
    font-size: 1rem;
    cursor: pointer;
    padding: 10px;
    min-width: 44px;
    min-height: 44px;
    transition: color var(--transition);
}
.next-btn:hover {
    color: var(--text);
}

.quiz-bottom-nav {
    display: none;
    justify-content: space-between;
    gap: 16px;
    margin: 20px auto 26px;
    animation: quizNavIn 0.35s cubic-bezier(0.34, 1.4, 0.64, 1);
}
@keyframes quizNavIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
.quiz-nav-arrow {
    background: rgba(56, 189, 248, 0.10);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--border-focus);
    color: var(--primary);
    font-family: inherit;
    font-size: 1.4rem;
    font-weight: 600;
    line-height: 1;
    padding: 10px 28px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}
.quiz-nav-arrow:hover {
    background: rgba(56, 189, 248, 0.20);
    border-color: var(--border-focus);
}
.quiz-nav-prev:hover {
    transform: translateX(-3px);
}
.quiz-nav-next {
    margin-left: auto;
}
.quiz-nav-text {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    padding: 10px 24px;
    box-shadow: none;
    animation: none;
    background: var(--primary-25);
    border: 1px solid var(--border-focus);
}
.quiz-nav-text:hover {
    background: var(--border-focus);
}
.quiz-nav-next:hover {
    transform: translateX(3px);
}
.quiz-nav-arrow:active {
    transform: scale(0.9);
}
@media (min-width: 601px) {
    .quiz-floating-next { display: none !important; }
}
.quiz-progress-bar {
    flex: 1;
    height: 3px;
    background: var(--glass-strong);
    border-radius: 2px;
    overflow: hidden;
}
.quiz-progress-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 2px;
    transition: width 0.4s ease;
    box-shadow: 0 0 8px rgba(56, 189, 248, 0.4);
}
.quiz-progress-text {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-faint);
    min-width: 36px;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.quiz-cert-name {
    font-size: 0.6rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 4px;
    text-shadow: 0 0 12px rgba(56, 189, 248, 0.3);
}
.quiz-topic-badge {
    display: inline-block;
    padding: 3px 10px;
    background: var(--glass);
    color: var(--text-muted);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 500;
    margin-bottom: 12px;
    letter-spacing: 0.02em;
}

.question-card {
    background: none;
    border-radius: 0;
    padding: 0;
    margin-bottom: 12px;
    animation: fadeIn 0.25s ease;
}

.question-text {
    font-size: 1.05rem;
    font-weight: 500;
    line-height: 1.65;
    margin-bottom: 20px;
    color: var(--text);
}

.choices {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Glass Choice Buttons */
.choice-btn {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.9rem;
    line-height: 1.5;
    text-align: left;
    cursor: pointer;
    transition: all var(--transition);
    min-height: 48px;
}
.choice-btn:hover:not(.disabled) {
    border-color: var(--border-focus);
    background: var(--bg-card-hover);
    box-shadow: var(--shadow-glow);
}

.choice-letter {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 6px;
    background: var(--glass-strong);
    font-weight: 600;
    font-size: 0.75rem;
    flex-shrink: 0;
    color: var(--text-muted);
}

.choice-btn.correct {
    background: rgba(52, 211, 153, 0.08);
    border-color: rgba(52, 211, 153, 0.25);
    box-shadow: 0 0 16px rgba(52, 211, 153, 0.10);
}
.choice-btn.correct .choice-letter { background: var(--success); color: white; }

.choice-btn.wrong {
    background: rgba(251, 113, 133, 0.08);
    border-color: rgba(251, 113, 133, 0.25);
    box-shadow: 0 0 16px rgba(251, 113, 133, 0.10);
}
.choice-btn.wrong .choice-letter { background: var(--danger); color: white; }

.choice-btn.disabled { pointer-events: none; opacity: 0.5; }
.choice-btn.correct.disabled, .choice-btn.wrong.disabled { opacity: 1; }

/* Feedback */
.feedback-card {
    border-top: 1px solid var(--glass-border);
    padding: 16px 0 0;
    animation: fadeIn 0.25s ease;
    scroll-margin-top: 12px;
}
.feedback-verdict {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.xp-popup {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 800;
    padding: 2px 8px;
    border-radius: 12px;
    animation: xpSlideUp 0.5s ease;
    text-transform: none;
    letter-spacing: 0;
}
.xp-popup-correct {
    background: rgba(52, 211, 153, 0.15);
    color: var(--success);
}
.xp-popup-wrong {
    background: rgba(251, 113, 133, 0.15);
    color: var(--danger);
}
@keyframes xpSlideUp {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
.signup-bonus-toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: rgba(56, 189, 248, 0.25);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid rgba(56, 189, 248, 0.35);
    color: var(--text-on-color);
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    box-shadow: 0 0 30px rgba(56, 189, 248, 0.2);
}
.signup-bonus-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}
.feedback-question {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--danger);
    margin-bottom: 6px;
    line-height: 1.4;
}
.feedback-answer {
    display: block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--success);
    margin-bottom: 6px;
}
.feedback-explanation {
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-muted);
    margin-bottom: 10px;
}
.feedback-mnemonic {
    background: rgba(56, 189, 248, 0.05);
    border-left: 2px solid var(--primary);
    border-radius: 0;
    padding: 10px 14px;
    margin-bottom: 0;
    font-size: 0.8rem;
    line-height: 1.5;
    color: var(--text-muted);
}
.feedback-mnemonic:empty { display: none; }

/* Quit Modal — Glass */
.quit-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: var(--overlay);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.15s ease;
}
.quit-modal {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 28px 24px;
    max-width: 320px;
    width: 100%;
    text-align: center;
    box-shadow: var(--shadow-lg);
}
.quit-message {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 4px;
}
.quit-sub {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}
.quit-actions {
    display: flex;
    gap: 8px;
    justify-content: center;
}

/* Replace Quiz Modal */
.replace-modal {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 24px;
    max-width: 360px;
    width: 100%;
    text-align: center;
    animation: fadeIn 0.2s ease;
    box-shadow: var(--shadow-lg);
}
.replace-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
}
.replace-msg {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 20px;
}
.replace-actions {
    display: flex;
    gap: 8px;
}
.replace-actions .btn {
    flex: 1;
}
.quit-actions .btn {
    flex: 1;
}

/* ===== RESULTS SCREEN ===== */
.results-container {
    padding: 20px 0;
}
.results-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 24px;
}
.results-score {
    font-size: 3.5rem;
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1;
    margin-bottom: 4px;
    text-shadow: 0 0 30px rgba(56, 189, 248, 0.2);
}
.results-status {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
}
.results-detail {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.results-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 24px;
}
.results-stat {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 14px 8px;
    text-align: center;
}
.results-stat-num {
    display: block;
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text);
}
.results-stat-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.results-breakdown {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 24px;
}
.breakdown-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
}
.breakdown-item .topic { font-weight: 600; }
.breakdown-item .score { color: var(--text-muted); font-variant-numeric: tabular-nums; }

.results-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
    gap: 8px;
}
.results-top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.results-home-icon {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 8px;
    opacity: 0.5;
    transition: opacity 0.2s;
}
.results-home-icon:hover {
    opacity: 1;
}
.results-actions .btn,
.results-actions .pw-buy-btn {
    font-size: 0.72rem;
    padding: 10px 6px;
    white-space: nowrap;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-width: 0;
}
.results-actions .btn-icon {
    font-size: 1rem;
    line-height: 1;
}
@media (max-width: 480px) {
    .results-actions {
        grid-template-columns: 1fr 1fr;
    }
    .results-actions .btn {
        flex-direction: column;
        gap: 4px;
        padding: 12px 6px;
    }
    .results-actions .btn-icon {
        font-size: 1.3rem;
    }
    .results-actions .btn-label {
        font-size: 0.65rem;
    }
    .results-upsell {
        grid-column: 1 / -1;
    }
    .results-full-access-btn {
        grid-column: 1 / -1;
    }
}

/* Email Capture Modal */
.email-capture-modal {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 24px;
    max-width: 360px;
    width: 100%;
    text-align: center;
    animation: fadeIn 0.2s ease;
    box-shadow: var(--shadow-lg);
}
.email-capture-modal h2 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 4px;
}
.email-capture-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}
.email-capture-modal .auth-input {
    margin-bottom: 8px;
}

/* ===== QUESTION HISTORY ===== */
.history-filters {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}
.history-filter {
    padding: 6px 14px;
    border-radius: 20px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    opacity: 0.6;
}
.history-filter:hover {
    opacity: 1;
}
.history-filter.active {
    background: rgba(56, 189, 248, 0.12);
    color: var(--primary);
    border: none;
    opacity: 1;
}
.history-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.history-item {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-radius: 12px;
    padding: 14px 16px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid var(--glass-border);
}
.history-item:active {
    transform: scale(0.98);
}
.history-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}
.history-topic {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--primary);
}
.history-status {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 10px;
}
.history-status-mastered {
    background: rgba(52, 211, 153, 0.12);
    color: var(--success);
}
.history-status-learning {
    background: rgba(251, 191, 36, 0.12);
    color: var(--warning);
}
.history-status-struggling {
    background: rgba(251, 113, 133, 0.12);
    color: var(--danger);
}
.history-question {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text);
    line-height: 1.4;
    margin-bottom: 8px;
}
.history-item-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.history-accuracy, .history-date {
    font-size: 0.75rem;
    color: var(--text-muted);
}
.history-empty {
    text-align: center;
    color: var(--text-muted);
    padding: 40px 20px;
    font-size: 0.9rem;
}

/* History detail overlay */
.history-detail-overlay {
    position: fixed;
    inset: 0;
    background: var(--overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 16px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.history-detail-card {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    border-radius: 16px;
    padding: 24px;
    max-width: 500px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-lg);
}
.history-detail-close {
    position: absolute;
    top: 12px;
    right: 16px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 4px;
    line-height: 1;
}
.history-detail-topic {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--primary);
    margin-bottom: 10px;
}
.history-detail-question {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.5;
    margin-bottom: 16px;
}
.history-detail-choices {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}
.history-choice {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 10px;
    background: var(--glass);
    font-size: 0.85rem;
    color: var(--text-muted);
    border: 1px solid var(--glass-border);
}
.history-choice-correct {
    background: rgba(52, 211, 153, 0.10);
    color: var(--success);
    border-color: rgba(52, 211, 153, 0.25);
    font-weight: 600;
}
.history-choice .choice-letter {
    min-width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    background: var(--glass-strong);
}
.history-choice-correct .choice-letter {
    background: var(--success);
    color: var(--text-on-color);
}
.history-detail-explanation {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 12px;
    padding: 12px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
}
.history-detail-mnemonic {
    font-size: 0.8rem;
    color: var(--primary-text);
    padding: 10px 12px;
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.15);
    border-radius: 10px;
    margin-bottom: 12px;
    line-height: 1.5;
}
.history-detail-stats {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    padding-top: 12px;
    border-top: 1px solid var(--glass-border);
}

/* ===== FLASHCARDS — Glass ===== */
.fc-top-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}
.fc-top-row h2 { flex: 1; text-align: center; }
.fc-top-spacer { width: 52px; flex-shrink: 0; }
.flashcard {
    perspective: 1000px;
    width: 100%;
    height: 310px;
    cursor: pointer;
    margin: 10px 0;
}
@media (max-width: 600px) {
    .flashcard { height: 50vh; }
    .flashcard-front, .flashcard-back { font-size: 0.95rem; }
    .fc-front-label, .fc-back-label { padding: 16px 20px 0; }
    .fc-content { padding: 12px 20px 20px; }
}
.flashcard-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}
.flashcard-inner.flipped { transform: rotateY(180deg); }

.flashcard-front, .flashcard-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: var(--radius);
    font-size: 1.1rem;
    line-height: 1.6;
    text-align: center;
    display: flex;
    flex-direction: column;
}
.fc-front-label, .fc-back-label {
    flex-shrink: 0;
    padding: 20px 30px 0;
}
.fc-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 30px 30px;
    overflow-y: auto;
}
.flashcard-front {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 2px solid var(--border-focus);
    font-weight: 600;
    box-shadow: var(--shadow-glow);
}
.flashcard-back {
    background: rgba(56, 189, 248, 0.08);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 2px solid var(--primary);
    transform: rotateY(180deg);
    color: var(--text);
    box-shadow: 0 0 30px rgba(56, 189, 248, 0.15);
}
.fc-question {
    font-weight: 600;
    font-size: 0.9rem;
    line-height: 1.5;
}
.fc-front-label {
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary);
    opacity: 0.5;
}
.fc-back-label {
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary);
    opacity: 0.5;
}
.fc-answer {
    font-weight: 700;
    font-size: 1rem;
    color: var(--success);
}
.fc-explanation {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-top: 10px;
}
.fc-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 12px 16px;
    margin-bottom: 10px;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}
.fc-section-name {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text);
}
.fc-section-count {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-muted);
}
.fc-section-right {
    display: flex;
    align-items: center;
    gap: 6px;
}
.flashcard-counter {
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    letter-spacing: 0.05em;
}
/* Flashcard Paywall */
.fc-paywall {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 40px 20px;
    position: relative;
    overflow: hidden;
    animation: fcPaywallIn 0.6s ease;
}
@keyframes fcPaywallIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}
.fc-paywall-glow {
    position: absolute;
    top: -40%;
    left: 50%;
    transform: translateX(-50%);
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.12) 0%, transparent 70%);
    pointer-events: none;
}
.fc-paywall-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}
.fc-paywall-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}
.fc-paywall-title {
    font-size: 1.1rem;
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--text);
}
.fc-paywall-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 24px;
    max-width: 320px;
}
.fc-paywall-btn {
    width: 100%;
    max-width: 280px;
    margin-bottom: 10px;
}
.fc-paywall-back {
    width: 100%;
    max-width: 280px;
    font-size: 0.8rem;
}

.flashcard-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 4px;
}
.results-full-access-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 6px;
    font-size: 0.85rem;
    white-space: nowrap;
    box-sizing: border-box;
    margin: 0;
    width: 100%;
}
.results-upsell {
    text-align: center;
    padding: 16px 12px;
    background: rgba(56, 189, 248, 0.04);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(56, 189, 248, 0.12);
    border-radius: var(--radius-sm);
}
.results-upsell-xp {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 10px;
}
.results-upsell-guarantee {
    font-size: 0.68rem;
    color: var(--success);
    margin-top: 8px;
}
.fc-btn-quiz {
    padding: 8px 16px;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--primary-text);
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.15);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
}
.fc-btn-quiz:hover {
    background: rgba(56, 189, 248, 0.15);
    border-color: var(--border-focus);
}
.fc-btn {
    padding: 12px 28px;
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
}
.fc-btn-arrow {
    background: var(--glass);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-size: 1.8rem;
    font-weight: 800;
    padding: 8px 24px;
    line-height: 1;
    transition: all 0.2s ease;
}
.fc-btn-arrow:hover {
    border-color: var(--border-focus);
    color: var(--primary);
    box-shadow: var(--shadow-glow);
}
.fc-btn-arrow:active {
    transform: scale(0.9);
}
.fc-btn-arrow:first-child:hover {
    transform: translateX(-3px);
}
.fc-btn-arrow:last-child:hover {
    transform: translateX(3px);
}

/* Flashcard dropdown */
.fc-dropdown {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    margin-bottom: 10px;
    overflow: hidden;
}
.fc-dropdown-list {
    max-height: 200px;
    overflow-y: auto;
}
.fc-section-chevron {
    transition: transform 0.2s;
}

/* ===== BADGE SHOP ===== */
.equipped-badge-icon {
    font-size: 0.9rem;
    line-height: 1;
}

/* XP Shop — Glass */
.shop-hero {
    text-align: center;
    padding: 24px 20px 20px;
    margin-bottom: 20px;
    background: rgba(56, 189, 248, 0.04);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid rgba(56, 189, 248, 0.10);
    border-radius: var(--radius);
    position: relative;
    overflow: hidden;
}
.shop-hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.3), transparent);
}
.shop-hero-label {
    font-size: 0.6rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 4px;
}
.shop-hero-amount {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--text);
    letter-spacing: -0.02em;
}
.shop-hero-xp {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary);
    opacity: 0.5;
}
.shop-hero-boost {
    font-size: 0.65rem;
    color: var(--primary);
    margin-top: 6px;
    font-weight: 600;
}
.shop-section {
    margin-bottom: 22px;
}
.shop-section-header {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 10px;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.shop-section-header svg {
    color: var(--primary);
    opacity: 0.5;
}
/* Boost Cards */
.shop-boost-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}
.shop-boost-card {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 18px 10px 14px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    font-family: inherit;
    color: var(--text);
    transition: all var(--transition);
    position: relative;
}
.shop-boost-card:hover {
    border-color: var(--border-focus);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}
.shop-boost-best {
    border-color: rgba(56, 189, 248, 0.20);
    background: rgba(56, 189, 248, 0.04);
}
.shop-boost-tag {
    position: absolute;
    top: -8px;
    font-size: 0.45rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    background: var(--gradient-accent);
    color: var(--text-on-color);
    padding: 2px 8px;
    border-radius: 4px;
}
.shop-boost-duration {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-muted);
}
.shop-boost-multi {
    font-size: 1.3rem;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
    text-shadow: 0 0 12px rgba(56, 189, 248, 0.3);
}
.shop-boost-divider {
    width: 20px;
    height: 1px;
    background: var(--glass-border);
    margin: 2px 0;
}
.shop-boost-price {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-muted);
}
.shop-boost-price::after {
    content: ' XP';
    opacity: 0.5;
}
/* Shop Topic Cards */
.shop-topics-grid {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.shop-topic-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    color: var(--text);
    transition: all 0.2s ease;
    text-align: left;
    width: 100%;
}
.shop-topic-card:hover:not(.shop-topic-done):not(.shop-item-disabled) {
    border-color: var(--border-focus);
    background: var(--bg-card-hover);
}
.shop-topic-card.shop-topic-done {
    opacity: 0.5;
    cursor: default;
}
.shop-topic-card.shop-item-disabled {
    opacity: 0.4;
    cursor: default;
}
.shop-topic-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}
.shop-topic-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}
.shop-topic-name {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary-text);
}
.shop-topic-progress {
    font-size: 0.68rem;
    color: var(--text-muted);
}
.shop-topic-cost {
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--primary);
    white-space: nowrap;
    flex-shrink: 0;
}

/* Question Packs */
.shop-question-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}
.shop-q-btn {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 14px 8px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    cursor: pointer;
    font-family: inherit;
    color: var(--text);
    transition: all var(--transition);
}
.shop-q-btn:hover {
    border-color: var(--border-focus);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}
.shop-q-qty {
    font-size: 1rem;
    font-weight: 800;
}
.shop-q-label {
    font-size: 0.5rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.shop-q-cost {
    font-size: 0.6rem;
    color: var(--primary);
    font-weight: 700;
}
.shop-q-cost::after {
    content: ' XP';
    opacity: 0.5;
}
/* Shop Disabled State */
.shop-item-disabled {
    opacity: 0.3;
    pointer-events: none;
    filter: grayscale(0.5);
}

/* Referral Card — Glass */
.shop-referral-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    margin-bottom: 14px;
    background: rgba(56, 189, 248, 0.04);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid rgba(56, 189, 248, 0.12);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}
.shop-referral-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.2), transparent);
}
.shop-referral-card::after { display: none; }
.shop-referral-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}
.referral-left {
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.referral-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text);
}
.referral-desc {
    font-size: 0.6rem;
    color: var(--text-muted);
    line-height: 1.3;
}
.referral-reward {
    font-size: 1rem;
    font-weight: 800;
    color: var(--primary);
    white-space: nowrap;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Share Grid */
.shop-share-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
}
.shop-share-btn {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 12px 8px;
    min-height: 44px;
    font-family: inherit;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    text-align: center;
}
.share-icon {
    font-size: 0.85rem;
    font-weight: 800;
    color: var(--text);
    opacity: 0.6;
}
.share-name {
    font-size: 0.55rem;
    font-weight: 600;
    color: var(--text-muted);
}
.share-reward {
    font-size: 0.55rem;
    font-weight: 700;
    color: var(--primary);
}
.shop-share-btn:hover {
    border-color: var(--border-focus);
    background: var(--bg-card-hover);
    transform: translateY(-1px);
}
.shop-share-btn:hover .share-icon {
    opacity: 1;
    color: var(--primary);
}
/* Boost Badge (top bar) */
.boost-badge {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--primary);
    cursor: pointer;
}

.badge-shop-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding-bottom: 10px;
    max-height: 72px;
    overflow: hidden;
    transition: max-height 0.4s ease;
}
.badge-shop-grid.badge-grid-expanded {
    max-height: 600px;
}
.badge-toggle {
    display: block;
    margin: 4px auto 0;
    background: none;
    border: none;
    color: var(--primary);
    font-size: 0.65rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity var(--transition);
    letter-spacing: 0.03em;
}
.badge-toggle:hover {
    opacity: 1;
}

.badge-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 6px 8px;
    text-align: center;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: all var(--transition);
    flex-shrink: 0;
}
.badge-card:hover {
    background: var(--bg-card-hover);
}

.badge-card-icon {
    font-size: 1rem;
    line-height: 1;
}
.badge-card-name {
    font-size: 0.6rem;
    font-weight: 600;
    color: var(--text-muted);
}

.badge-action {
    display: inline-block;
    padding: 2px 6px;
    border: none;
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.65rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    margin-top: 4px;
}

.badge-action-buy {
    background: rgba(56, 189, 248, 0.20);
    border: 1px solid rgba(56, 189, 248, 0.30);
    color: white;
}
.badge-action-buy:hover {
    opacity: 0.85;
}

.badge-action-equip {
    background: var(--primary-15);
    color: var(--secondary);
    border: 1px solid var(--border-focus);
}
.badge-action-equip:hover {
    background: var(--primary-25);
}

.badge-action-equipped {
    background: var(--primary-15);
    color: var(--primary);
    border: 1px solid var(--border-focus);
    cursor: pointer;
}

.badge-action-cost {
    background: none;
    color: var(--text-muted);
    font-size: 0.65rem;
    cursor: default;
    opacity: 0.6;
}

/* States */
.badge-card.badge-owned {
    border-color: rgba(52, 211, 153, 0.18);
}
.badge-card.badge-equipped {
    border-color: var(--border-focus);
    box-shadow: 0 0 16px rgba(56, 189, 248, 0.12);
}
.badge-card.badge-locked {
    opacity: 0.6;
}

/* Mode card shop variant */
.mode-card-shop {
    border-color: var(--primary-15);
}

@media (max-width: 400px) {
    .badge-shop-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 6px;
    }
    .badge-card {
        padding: 12px 4px 10px;
    }
    .badge-card-icon {
        font-size: 1.6rem;
    }
}

/* ===== LEADERBOARD ===== */
.lb-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-bottom: 1px solid var(--glass-border);
}
.lb-row.lb-top {
    background: rgba(56, 189, 248, 0.04);
}
.lb-rank {
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--text-muted);
    min-width: 24px;
}
.lb-top .lb-rank { color: var(--primary); }
.lb-badge {
    font-size: 1rem;
    min-width: 20px;
    text-align: center;
}
.lb-name {
    flex: 1;
    font-size: 0.85rem;
    font-weight: 600;
}
.lb-xp {
    font-size: 0.75rem;
    color: var(--warning);
    font-weight: 600;
}

/* ===== CONFETTI ===== */
#confetti-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 999;
}

/* ===== RESPONSIVE ===== */
@media (min-width: 600px) {
    .quick-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }
    .topics-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 900px) {
    .home-logo { font-size: 2.8rem; }
    .screen { padding: 30px; }
    .home-grid { grid-template-columns: repeat(4, 1fr); }
    .home-hero { padding: 4px 0 8px; }
    .home-tagline { margin-bottom: 2px; }
    .topic-graph { gap: 14.75px; }
    .topic-row { padding: 7.6px 10px; }
}

/* ===== MOBILE: REMOVE DECORATIVE EFFECTS ===== */
@media (max-width: 600px) {
    .sign-in-prompt::after,
    .unlock-banner::after,
    .shop-referral-card::after,
    .fc-paywall-glow { display: none; }
    .pulse { animation: none; }
    /* Reduce blur on mobile for performance */
    .home-card,
    .topic-card,
    .choice-btn,
    .history-item,
    .shop-topic-card,
    .shop-share-btn,
    .badge-card,
    .earn-btn {
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
    }
}

/* ===== KEYBOARD SHORTCUT HINTS ===== */
.shortcut-hint {
    display: none;
}
@media (hover: hover) {
    .shortcut-hint {
        display: inline;
        font-size: 0.75rem;
        color: var(--text-muted);
        margin-left: 6px;
        opacity: 0.6;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes bounceIn {
    0% { transform: scale(0.85); opacity: 0; }
    60% { transform: scale(1.02); }
    100% { transform: scale(1); opacity: 1; }
}
.bounce-in { animation: bounceIn 0.5s ease; }

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-4px); }
    20%, 40%, 60%, 80% { transform: translateX(4px); }
}
.shake { animation: shake 0.5s ease; }

/* Geometric spin animation */
@keyframes geoRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Gradient border animation */
@keyframes borderGlow {
    0%, 100% { border-color: rgba(56, 189, 248, 0.15); }
    50% { border-color: rgba(56, 189, 248, 0.35); }
}

/* Focus ring for accessibility */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Color coding for pass/fail */
.pass-color { color: var(--success); }
.fail-color { color: var(--danger); }

/* ===== GOOGLE AUTH UI — Glass ===== */
.sign-in-btn {
    background: rgba(56, 189, 248, 0.20);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(56, 189, 248, 0.30);
    color: var(--text-on-color);
    font-family: inherit;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 20px;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}
.sign-in-btn:hover {
    background: rgba(56, 189, 248, 0.30);
    box-shadow: 0 0 16px rgba(56, 189, 248, 0.2);
}

.user-menu-wrapper {
    position: relative;
}

.user-avatar-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 2px;
    border-radius: 20px;
    transition: opacity var(--transition);
}
.user-avatar-btn:hover {
    opacity: 0.85;
}

.user-badge-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(56, 189, 248, 0.08);
    border: 2px solid rgba(56, 189, 248, 0.20);
    font-size: 1.1rem;
    line-height: 1;
    box-shadow: 0 0 12px rgba(56, 189, 248, 0.10);
    transition: all var(--transition);
}
.user-badge-icon:hover {
    border-color: rgba(56, 189, 248, 0.50);
    box-shadow: 0 0 24px rgba(56, 189, 248, 0.20);
    transform: scale(1.08);
}
.user-badge-initials {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--primary);
}

.user-name {
    color: var(--text);
    font-size: 0.8rem;
    font-weight: 600;
    max-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
@media (max-width: 480px) {
    .user-name { display: none; }
}

.user-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: rgba(18, 22, 32, 0.90);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 4px;
    min-width: 130px;
    box-shadow: var(--shadow-lg);
    z-index: 200;
    animation: fadeIn 0.15s ease;
}

.user-menu-item {
    display: block;
    width: 100%;
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    text-align: left;
    transition: all var(--transition);
}
.user-menu-item:hover {
    background: var(--glass-strong);
    color: var(--text);
}

/* ===== AUTH MODAL — Glass ===== */
.auth-modal {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 24px;
    max-width: 360px;
    width: 100%;
    animation: fadeIn 0.2s ease;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}
.auth-modal::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.3), transparent);
}
.auth-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}
.auth-header h2 {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0;
}
.auth-close {
    background: none;
    border: none;
    color: var(--text-faint);
    font-size: 1rem;
    cursor: pointer;
    padding: 10px;
    min-width: 44px;
    min-height: 44px;
    transition: color var(--transition);
}
.auth-close:hover { color: var(--text); }

#google-btn-container {
    display: flex;
    justify-content: center;
}
.auth-divider {
    text-align: center;
    margin: 16px 0;
    position: relative;
}
.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--glass-border);
}
.auth-divider span {
    position: relative;
    background: rgba(18, 22, 32, 0.90);
    padding: 0 12px;
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.auth-input {
    width: 100%;
    background: var(--glass);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.85rem;
    padding: 10px 12px;
    margin-bottom: 8px;
    transition: border-color var(--transition);
}
.auth-input:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 12px rgba(56, 189, 248, 0.10);
}
.auth-input::placeholder { color: var(--text-faint); }

.auth-submit {
    width: 100%;
    padding: 11px;
    margin-top: 4px;
    background: rgba(56, 189, 248, 0.20);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(56, 189, 248, 0.30);
    color: white;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition);
}
.auth-submit:hover {
    background: rgba(56, 189, 248, 0.30);
    box-shadow: 0 0 16px rgba(56, 189, 248, 0.2);
}

.auth-toggle {
    text-align: center;
    margin-top: 14px;
    font-size: 0.75rem;
    color: var(--text-muted);
}
.auth-toggle-btn {
    background: none;
    border: none;
    color: var(--primary);
    font-family: inherit;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    padding: 0;
    margin-left: 4px;
}
.auth-toggle-btn:hover {
    text-decoration: underline;
}
.auth-status {
    margin-top: 10px;
    font-size: 0.8rem;
    text-align: center;
}
.auth-status.success { color: var(--success); }
.auth-status.error { color: var(--danger); }

/* ===== DEV TOGGLE ===== */
.dev-toggle {
    margin-top: 12px;
}
.dev-toggle-btn {
    background: var(--glass);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 6px 14px;
    cursor: pointer;
    transition: all var(--transition);
}
.dev-toggle-btn:hover {
    border-color: var(--border-focus);
    color: var(--text);
}

/* ===== PRO BADGE — Glass ===== */
.pro-badge {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 5px 12px;
    background: rgba(56, 189, 248, 0.15);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-on-color);
    box-shadow: 0 0 16px rgba(56, 189, 248, 0.15);
}

/* ===== PAYWALL MODAL — Glass ===== */
.paywall-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: var(--overlay-heavy);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.15s ease;
}

.pw-modal {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    max-width: 400px;
    width: 100%;
    position: relative;
    overflow: hidden;
    animation: fadeIn 0.2s ease;
    box-shadow: var(--shadow-lg);
}
.pw-modal::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.3), transparent);
    z-index: 1;
}

.pw-close {
    position: absolute;
    top: 10px;
    right: 10px;
    background: none;
    border: none;
    color: var(--text-faint);
    font-size: 1rem;
    cursor: pointer;
    padding: 10px;
    min-width: 44px;
    min-height: 44px;
    z-index: 1;
    transition: color var(--transition);
}
.pw-close:hover { color: var(--text); }

.pw-header {
    padding: 24px 40px 0 24px;
}
.pw-subtitle {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}
.pw-header h2 {
    font-size: 1.2rem;
    font-weight: 800;
    margin: 0;
}

.pw-deal {
    padding: 10px 20px;
    background: rgba(251, 113, 133, 0.06);
}
.pw-deal-text {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--danger);
    text-align: center;
    display: block;
}
.pw-original {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-decoration: line-through;
    opacity: 0.5;
    margin-right: 6px;
}
.pw-price-row {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 14px 24px;
    border-bottom: 1px solid var(--glass-border);
}
/* Tiered pricing grid */
.pw-pricing-tiers {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 10px;
}
.pw-tier {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 16px 10px 14px;
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 2px solid var(--glass-border);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    text-align: center;
    color: var(--text);
}
.pw-tier:hover {
    border-color: var(--border);
    background: var(--glass-strong);
}
.pw-tier-selected {
    border-color: var(--primary);
    background: rgba(56, 189, 248, 0.06);
    box-shadow: 0 0 0 1px var(--primary), 0 0 20px rgba(56, 189, 248, 0.10);
}
.pw-tier-badge {
    position: absolute;
    top: -9px;
    font-size: 0.5rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    background: var(--primary);
    color: white;
    padding: 2px 10px;
    border-radius: 4px;
}
.pw-tier-name {
    font-size: 0.75rem;
    font-weight: 700;
}
.pw-tier-price {
    font-size: 1.5rem;
    font-weight: 900;
}
.pw-tier-desc {
    font-size: 0.6rem;
    color: var(--text-muted);
}
.pw-tier-save {
    font-size: 0.55rem;
    font-weight: 700;
    color: var(--success);
    background: rgba(52, 211, 153, 0.1);
    padding: 2px 8px;
    border-radius: 4px;
}
.pw-tier-popular {
    border-color: var(--primary);
}
.pw-price {
    display: flex;
    align-items: baseline;
    gap: 4px;
    flex-wrap: wrap;
}
.pw-amount {
    font-size: 2rem;
    font-weight: 900;
    color: var(--text);
}
.pw-period {
    font-size: 0.7rem;
    color: var(--text-muted);
}
.pw-buy-btn {
    display: inline-block;
    padding: 12px 28px;
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--text);
    border: 1px solid var(--glass-border);
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    border-radius: 10px;
    text-decoration: none;
    transition: all 0.2s ease;
    white-space: nowrap;
}
.pw-buy-btn:hover {
    transform: translateY(-1px);
    border-color: var(--border-focus);
    box-shadow: var(--shadow-glow);
}

.pw-features {
    padding: 12px 24px 8px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.pw-feature {
    display: flex;
    align-items: center;
    gap: 12px;
}
.pw-feature-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 800;
    flex-shrink: 0;
}
.pw-icon-questions { background: rgba(56, 189, 248, 0.10); color: var(--primary); }
.pw-icon-mock { background: rgba(56, 189, 248, 0.10); color: var(--primary); }
.pw-icon-target { background: rgba(245, 158, 11, 0.12); color: #fbbf24; }
.pw-icon-save { background: rgba(52, 211, 153, 0.10); color: var(--success); }

.pw-feature-title {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
}
.pw-feature-desc {
    display: block;
    font-size: 0.68rem;
    color: var(--text-muted);
}
.pw-feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.78rem;
    color: var(--text);
}
.pw-check { flex-shrink: 0; }
.pw-guarantee {
    text-align: center;
    padding: 10px 20px;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--success);
}
.pw-compare {
    text-align: center;
    padding: 0 20px 12px;
    font-size: 0.68rem;
    color: var(--text-muted);
    font-style: italic;
}

/* Bundles — Glass */
.pw-bundles {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--glass-border);
}
.pw-bundle {
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 14px 10px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    position: relative;
}
.pw-bundle-popular {
    border-color: var(--border-focus);
    background: rgba(56, 189, 248, 0.05);
}
.pw-bundle-tag {
    position: absolute;
    top: -8px;
    font-size: 0.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    background: var(--primary);
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
}
.pw-bundle-name {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text);
    margin-top: 4px;
}
.pw-bundle-desc {
    font-size: 0.6rem;
    color: var(--text-muted);
}
.pw-bundle-price {
    font-size: 1.3rem;
    font-weight: 900;
    color: var(--text);
    margin: 4px 0;
}
.pw-bundle-save {
    font-size: 0.55rem;
    font-weight: 600;
    color: var(--success);
    background: rgba(52, 211, 153, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
}
.pw-bundle-btn {
    display: block;
    width: 100%;
    padding: 8px;
    margin-top: 6px;
    background: rgba(56, 189, 248, 0.20);
    border: 1px solid rgba(56, 189, 248, 0.30);
    color: white;
    text-decoration: none;
    font-family: inherit;
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: 6px;
    text-align: center;
    transition: all var(--transition);
}
.pw-bundle-btn:hover {
    background: rgba(56, 189, 248, 0.30);
    box-shadow: 0 0 12px rgba(56, 189, 248, 0.15);
}

.pw-includes {
    display: flex;
    justify-content: center;
    gap: 6px;
    padding: 12px 20px;
    border-bottom: 1px solid var(--glass-border);
}
.pw-includes-item {
    font-size: 0.65rem;
    color: var(--text-muted);
}
.pw-includes-sep {
    color: var(--glass-border);
    font-size: 0.65rem;
}
.pw-includes-highlight {
    color: var(--warning);
    font-weight: 700;
}

.pw-signin-prompt {
    text-align: center;
    padding: 16px 24px;
    border-top: 1px solid var(--glass-border);
}
.pw-signin-text {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 10px;
}
.pw-signin-btn {
    background: rgba(56, 189, 248, 0.10);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--border-focus);
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 10px 24px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}
.pw-signin-btn:hover {
    background: rgba(56, 189, 248, 0.20);
}
.pw-skip {
    display: block;
    width: 100%;
    padding: 12px;
    background: none;
    border: none;
    border-top: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.7rem;
    cursor: pointer;
    transition: color var(--transition);
}
.pw-skip:hover { color: var(--text); }

/* Lock icon on buttons */

/* Topic card locked state */
.topic-card.locked {
    opacity: 0.6;
}
.topic-card.locked::after {
    content: '🔒';
    font-size: 1.2rem;
    margin-left: auto;
}

/* ===== CHAT WIDGET — Glass ===== */
.chat-widget {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 999;
}

.chat-toggle {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    color: var(--text-muted);
    border: 1px solid var(--glass-border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: none;
    transition: all 0.2s ease;
}
.chat-toggle:hover {
    background: var(--bg-card-hover);
    border-color: var(--border);
    color: var(--text);
    transform: translateY(-2px);
}
.chat-toggle:active { transform: scale(0.95); }

.chat-window {
    position: fixed;
    bottom: 86px;
    right: 24px;
    width: 380px;
    height: 520px;
    max-height: calc(100vh - 110px);
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border: none;
    border-radius: 14px;
    box-shadow: none;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    overscroll-behavior: contain;
    animation: chatUp 0.25s ease-out;
    position: relative;
}
.chat-window::before { display: none; }
@keyframes chatUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes chatDown {
    from { opacity: 1; transform: translateY(0); }
    to { opacity: 0; transform: translateY(16px); }
}

.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    background: rgba(10, 13, 20, 0.80);
    border-bottom: 1px solid var(--glass-border);
    flex-shrink: 0;
}
.chat-header-info { display: flex; align-items: center; gap: 10px; }
.chat-avatar {
    width: 30px; height: 30px; border-radius: 8px;
    background: rgba(56, 189, 248, 0.12);
    border: 1px solid rgba(56, 189, 248, 0.20);
    display: flex; align-items: center; justify-content: center;
    font-size: 0.65rem; font-weight: 800; color: var(--primary);
}
.chat-title { font-size: 0.82rem; font-weight: 700; color: var(--text); }
.chat-subtitle { font-size: 0.62rem; color: var(--text-muted); }
.chat-header-actions { display: flex; align-items: center; gap: 2px; }
.chat-clear-btn, .chat-close {
    background: none; border: none; color: var(--text-faint);
    cursor: pointer; padding: 6px; border-radius: 6px; transition: all 0.15s;
}
.chat-clear-btn:hover, .chat-close:hover {
    background: var(--glass-strong); color: var(--text-muted);
}

.chat-body {
    flex: 1;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: rgba(10, 13, 20, 0.40);
}

.chat-msg { display: flex; flex-direction: column; max-width: 85%; }
.chat-msg.user { align-self: flex-end; }
.chat-msg.bot, .chat-msg.admin { align-self: flex-start; }

.chat-bubble {
    padding: 10px 14px; border-radius: 12px;
    font-size: 0.82rem; line-height: 1.55; word-wrap: break-word;
}
.chat-msg.user .chat-bubble {
    background: rgba(56, 189, 248, 0.20);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(56, 189, 248, 0.25);
    color: white;
    border-bottom-right-radius: 4px;
}
.chat-msg.bot .chat-bubble {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--text);
    border: 1px solid var(--glass-border);
    border-bottom-left-radius: 4px;
}
.chat-msg.admin .chat-bubble {
    background: rgba(52, 211, 153, 0.06);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text);
    border-bottom-left-radius: 4px;
    border-left: 2px solid var(--success);
    border: 1px solid rgba(52, 211, 153, 0.15);
    border-left: 2px solid var(--success);
}

/* Typing dots */
.chat-typing { display: flex; gap: 4px; align-items: center; padding: 12px 18px; }
.chat-typing span {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--text-faint); animation: chatDot 1.4s infinite ease-in-out;
}
.chat-typing span:nth-child(2) { animation-delay: 0.2s; }
.chat-typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes chatDot {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
    40% { transform: scale(1); opacity: 1; }
}

/* Feedback thumbs */
.chat-feedback { display: flex; gap: 4px; margin-top: 4px; }
.chat-fb-btn {
    background: none; border: none; cursor: pointer;
    padding: 3px 6px; color: var(--text-faint); border-radius: 6px; transition: all 0.15s;
}
.chat-fb-btn:hover { background: var(--glass-strong); color: var(--text-muted); }
.chat-fb-done { font-size: 0.65rem; color: var(--text-faint); padding: 3px 6px; }

/* Suggestions row */
.chat-suggestions-wrap {
    display: flex; align-items: center;
    flex-shrink: 0; border-top: 1px solid var(--glass-border);
    background: transparent;
}
.chat-arrow {
    flex-shrink: 0; width: 28px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    background: transparent; border: none;
    color: var(--text-faint); cursor: pointer; transition: color 0.15s;
}
.chat-arrow:hover { color: var(--primary); }
.chat-arrow-left { border-right: 1px solid var(--glass-border); }
.chat-arrow-right { border-left: 1px solid var(--glass-border); }
.chat-suggestions {
    display: flex; align-items: center; gap: 6px;
    padding: 8px 6px; flex: 1; min-width: 0;
    overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none;
}
.chat-suggestions::-webkit-scrollbar { display: none; }
.chat-suggestion-btn {
    flex-shrink: 0; white-space: nowrap;
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 6px; padding: 8px 12px;
    font-size: 0.68rem; font-family: inherit; color: var(--primary-text);
    cursor: pointer; transition: all 0.15s;
}
.chat-suggestion-btn:hover {
    background: rgba(56, 189, 248, 0.10);
    border-color: var(--border-focus);
}

/* Input */
.chat-input-row {
    display: flex; align-items: center; gap: 8px;
    padding: 10px 12px; border-top: 1px solid rgba(255, 255, 255, 0.04); flex-shrink: 0;
    background: transparent;
}
.chat-input {
    flex: 1; background: var(--glass);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 10px; padding: 9px 14px;
    font-size: 0.88rem; font-family: inherit; color: var(--text);
    outline: none; transition: border-color 0.2s;
}
.chat-input:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 12px rgba(56, 189, 248, 0.10);
}
.chat-input::placeholder { color: var(--text-faint); }
.chat-send {
    width: 34px; height: 34px;
    border-radius: 10px;
    background: rgba(56, 189, 248, 0.15);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(56, 189, 248, 0.30);
    color: var(--primary);
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; transition: all 0.15s;
    box-shadow: 0 0 12px rgba(56, 189, 248, 0.10);
}
.chat-send:hover {
    background: rgba(56, 189, 248, 0.25);
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.25);
    border-color: rgba(56, 189, 248, 0.50);
    color: white;
}
.chat-send:active { transform: scale(0.94); }
.chat-input:disabled { opacity: 0.5; cursor: not-allowed; }

/* Chat limit CTA */
.chat-limit-cta {
    display: flex; flex-direction: column; gap: 8px;
    padding: 12px 16px; margin: 4px 0;
}
.chat-cta-btn {
    width: 100%; padding: 10px 16px; border: none; border-radius: 10px;
    font-size: 0.82rem; font-family: inherit; font-weight: 600;
    cursor: pointer; transition: all 0.15s; text-align: center;
}
.chat-cta-signup {
    background: rgba(56, 189, 248, 0.20);
    border: 1px solid rgba(56, 189, 248, 0.30);
    color: white;
}
.chat-cta-signup:hover {
    background: rgba(56, 189, 248, 0.30);
}
.chat-cta-pro {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.25), rgba(217, 119, 6, 0.25));
    border: 1px solid rgba(245, 158, 11, 0.30);
    color: white;
}
.chat-cta-pro:hover { filter: brightness(1.1); }

/* Mobile -- fullscreen chat */
@media (max-width: 600px) {
    .chat-widget { bottom: 16px; right: 16px; }
    .chat-toggle { width: 46px; height: 46px; }
    .chat-window {
        inset: 0; width: 100%; height: 100%;
        max-height: none; border-radius: 0; bottom: 0; right: 0;
    }
}

/* ===== CONSENT BANNER — Glass ===== */
.consent-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1001;
    background: rgba(10, 13, 20, 0.80);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    border-top: 1px solid var(--border-focus);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.3);
}
.consent-text {
    flex: 1;
    min-width: 240px;
}
.consent-text p {
    font-size: 0.82rem;
    line-height: 1.5;
    color: var(--text-muted);
    margin: 0;
}
.consent-text a {
    color: var(--primary-text);
    text-decoration: underline;
}
.consent-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

/* ===== FOOTER — Glass ===== */
#site-footer {
    text-align: center;
    padding: 40px 20px 32px;
    margin-top: 60px;
    border-top: 1px solid var(--glass-border);
    position: relative;
}
#site-footer::before {
    content: '';
    position: absolute;
    top: -1px; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.15), transparent);
}
#site-footer .disclaimer {
    font-size: 0.65rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 480px;
    margin: 0 auto 16px;
    letter-spacing: 0.01em;
}
#site-footer .footer-links {
    font-size: 0.75rem;
    margin-bottom: 10px;
    letter-spacing: 0.02em;
}
#site-footer .footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition);
}
#site-footer .footer-links a:hover {
    color: var(--primary-text);
}
.footer-sep {
    color: var(--text-faint);
}
.copyright {
    font-size: 0.65rem;
    color: var(--text-faint);
}

/* ===== FC DROPDOWN (inline in banner) ===== */
.fc-section-header {
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}
.fc-section-right {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ===== GEOMETRIC ACCENT ANIMATIONS ===== */
/* Subtle geometric border pulse on important cards */
.home-card-primary {
    animation: borderGlow 4s ease-in-out infinite;
}


/* Diamond accent on section labels */
.home-section-label::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    background: var(--primary);
    transform: rotate(45deg);
    margin-right: 8px;
    vertical-align: middle;
    opacity: 0.5;
    box-shadow: 0 0 6px rgba(56, 189, 248, 0.4);
}

/* Geometric accent on readiness label */
.readiness-label::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
    background: var(--primary);
    margin-right: 8px;
    vertical-align: middle;
    box-shadow: 0 0 8px rgba(56, 189, 248, 0.4);
}

/* Subtle scan line effect on glass panels */
@keyframes scanLine {
    0% { top: -10%; }
    100% { top: 110%; }
}