/* Viva Prep — premium study workspace (light + dark) */

:root,
html[data-theme="light"] {
    --brand: #ff6b6b;
    --brand-dark: #e55a5a;
    --brand-soft: #fff1f1;
    --accent: #1565c0;
    --accent-soft: #e3f0fc;
    --ink: #1e293b;
    --ink-strong: #0f172a;
    --muted: #64748b;
    --canvas: #e8eef6;
    --canvas-glow: rgba(21, 101, 192, 0.08);
    --surface: #f4f7fb;
    --card: #ffffff;
    --card-elevated: #ffffff;
    --border: #d5dee9;
    --border-soft: #e2e8f0;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.07);
    --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.1);
    --radius: 14px;
    --radius-sm: 10px;
    --nav-bg: rgba(255, 255, 255, 0.86);
    --footer-bg: #eef3f9;
    --hero-grad: linear-gradient(135deg, #eff4fb 0%, #e4ecf7 48%, #dfeaf8 100%);
    --filter-bg: rgba(255, 255, 255, 0.92);
    --q-hover: #f0f6ff;
    --success-bg: #f0fdf4;
    --success-border: #bbf7d0;
    --success-text: #166534;
    --danger-soft: #fff5f5;
    --warning-bg: #fff8e6;
    --warning-border: #f59e0b;
    --code-inline-bg: #e2e8f0;
    --pre-bg: #0f172a;
    --pre-fg: #e2e8f0;
    --resources-bg: #ffffff;
    --focus-ring: 0 0 0 3px rgba(6, 182, 212, 0.28);
    --spark: #f5c542;
    --spark-soft: rgba(245, 197, 66, 0.22);
    --glow-blue: rgba(21, 101, 192, 0.16);
    --glow-coral: rgba(255, 107, 107, 0.14);
    --cyan: #06b6d4;
    --cyan-soft: rgba(6, 182, 212, 0.16);
    --cyan-strong: #0891b2;
}

html[data-theme="dark"] {
    --brand: #ff7b7b;
    --brand-dark: #ff9494;
    --brand-soft: rgba(255, 107, 107, 0.14);
    --accent: #5ba3f0;
    --accent-soft: rgba(91, 163, 240, 0.14);
    --ink: #e2e8f0;
    --ink-strong: #f8fafc;
    --muted: #94a3b8;
    --canvas: #0b1220;
    --canvas-glow: rgba(91, 163, 240, 0.07);
    --surface: #121a2b;
    --card: #141d2f;
    --card-elevated: #182338;
    --border: #243149;
    --border-soft: #1e2a3f;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.45);
    --nav-bg: rgba(11, 18, 32, 0.9);
    --footer-bg: #0a101c;
    --hero-grad: linear-gradient(135deg, #121c30 0%, #152239 50%, #101a2c 100%);
    --filter-bg: rgba(20, 29, 47, 0.95);
    --q-hover: rgba(91, 163, 240, 0.08);
    --success-bg: rgba(34, 197, 94, 0.1);
    --success-border: rgba(74, 222, 128, 0.35);
    --success-text: #86efac;
    --danger-soft: rgba(248, 113, 113, 0.1);
    --warning-bg: rgba(245, 158, 11, 0.12);
    --warning-border: #f59e0b;
    --code-inline-bg: #243149;
    --pre-bg: #060a12;
    --pre-fg: #e2e8f0;
    --resources-bg: #182338;
    --focus-ring: 0 0 0 3px rgba(34, 211, 238, 0.32);
    --spark: #ffd666;
    --spark-soft: rgba(255, 214, 102, 0.18);
    --glow-blue: rgba(91, 163, 240, 0.18);
    --glow-coral: rgba(255, 123, 123, 0.16);
    --cyan: #22d3ee;
    --cyan-soft: rgba(34, 211, 238, 0.14);
    --cyan-strong: #67e8f9;
}

body.viva-app,
body {
    font-family: "Inter", system-ui, sans-serif;
    background: var(--canvas);
    color: var(--ink);
    min-height: 100vh;
}

.viva-workspace {
    position: relative;
    isolation: isolate;
}

.viva-workspace::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 28rem;
    background:
        radial-gradient(ellipse 70% 55% at 12% -10%, var(--canvas-glow), transparent 60%),
        radial-gradient(ellipse 50% 40% at 88% 0%, rgba(255, 107, 107, 0.06), transparent 55%);
    pointer-events: none;
    z-index: -1;
}

/* ── Theme toggle ── */
.theme-toggle {
    width: 2.35rem;
    height: 2.35rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--ink);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.theme-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.theme-toggle:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

html[data-theme="light"] .theme-icon-moon,
html[data-theme="dark"] .theme-icon-sun {
    display: none;
}

html[data-theme="dark"] .theme-icon-moon,
html[data-theme="light"] .theme-icon-sun {
    display: inline;
}

/* ── Chrome overrides ── */
.contact-bar {
    background: var(--ink-strong) !important;
    border-bottom: 1px solid transparent;
}

html[data-theme="dark"] .contact-bar {
    background: #060a12 !important;
    border-bottom-color: var(--border-soft);
}

.site-navbar {
    background: var(--nav-bg) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: none !important;
    border-bottom: 1px solid var(--border-soft);
}

.navbar-toggler {
    border: 1px solid var(--border);
    color: var(--ink);
    padding: 0.35rem 0.55rem;
}

.navbar-toggler:focus {
    box-shadow: var(--focus-ring);
}

.brand-text {
    color: var(--ink-strong);
}

.brand-sub {
    color: var(--muted);
    font-size: 0.75rem;
}

.nav-link-custom {
    color: var(--muted) !important;
    font-weight: 600;
    border-radius: 999px;
    padding: 0.4rem 0.85rem !important;
}

.nav-link-premium {
    display: inline-flex !important;
    align-items: center;
    gap: 0.4rem;
    color: var(--ink) !important;
    font-weight: 800;
    font-size: 0.92rem;
    border: 1px solid rgba(21, 101, 192, 0.22);
    background:
        linear-gradient(135deg, rgba(125, 211, 252, 0.18), rgba(21, 101, 192, 0.06));
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.35) inset;
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

html[data-theme="dark"] .nav-link-premium {
    border-color: rgba(91, 163, 240, 0.28);
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.16), rgba(91, 163, 240, 0.08));
}

.nav-link-premium i:first-child {
    color: var(--cyan-strong);
    font-size: 0.95rem;
}

.nav-link-premium:hover,
.nav-link-premium:focus {
    color: var(--cyan-strong) !important;
    border-color: rgba(6, 182, 212, 0.55);
    background: linear-gradient(135deg, rgba(125, 211, 252, 0.28), rgba(14, 165, 233, 0.12));
    box-shadow: 0 0 0 3px var(--cyan-soft);
    transform: translateY(-1px);
}

.nav-link-custom:hover,
.nav-link-custom:focus {
    color: var(--accent) !important;
    background: var(--accent-soft);
}

.nav-resources-trigger.nav-link-premium {
    width: 100%;
}

.btn-nav-login {
    color: var(--brand) !important;
    border-color: var(--brand) !important;
    background: transparent !important;
}

.btn-nav-login:hover {
    background: var(--brand) !important;
    color: #fff !important;
}

.btn-nav-enroll {
    white-space: nowrap;
    font-weight: 800;
    box-shadow: 0 0 0 2px rgba(255, 107, 107, 0.18);
}

.btn-nav-signup {
    background: var(--brand) !important;
    border-color: var(--brand) !important;
    color: #fff !important;
    border-radius: 999px;
}

.btn-nav-signup:hover {
    background: var(--brand-dark) !important;
    border-color: var(--brand-dark) !important;
    color: #fff !important;
}

.site-footer {
    background: var(--footer-bg) !important;
    border-top: 1px solid var(--border-soft) !important;
    color: var(--muted);
}

.footer-heading {
    color: var(--ink-strong);
    font-weight: 700;
}

.footer-links a,
.footer-desc,
.footer-copy,
.footer-brand-text {
    color: var(--muted);
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-hr {
    border-color: var(--border-soft);
    opacity: 1;
}

/* ── Resources hover panel ── */
.nav-resources {
    position: relative;
}

.nav-resources-trigger {
    background: none;
    border: 0;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.nav-resources-caret {
    font-size: 0.7rem;
    opacity: 0.7;
    transition: transform 0.15s ease;
}

.nav-resources:hover .nav-resources-caret,
.nav-resources.is-open .nav-resources-caret,
.nav-resources:focus-within .nav-resources-caret {
    transform: rotate(180deg);
}

.resources-panel {
    position: absolute;
    top: calc(100% + 0.35rem);
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    width: min(22rem, calc(100vw - 1.5rem));
    padding: 0.45rem;
    background: var(--resources-bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.14s ease, transform 0.14s ease, visibility 0.14s ease;
    transition-delay: 0.1s;
    z-index: 1050;
}

.resources-panel::before {
    content: "";
    position: absolute;
    top: -0.55rem;
    left: 0;
    right: 0;
    height: 0.55rem;
}

.nav-resources:hover .resources-panel,
.nav-resources:focus-within .resources-panel,
.nav-resources.is-open .resources-panel {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
    transition-delay: 0s;
}

.resources-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem 0.8rem;
    border-radius: 10px;
    color: var(--ink);
    text-decoration: none;
    transition: background 0.12s ease;
}

.resources-item:hover {
    background: var(--accent-soft);
    color: var(--ink-strong);
}

.resources-icon {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 10px;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    font-size: 1rem;
}

.resources-icon-oppe {
    background: var(--accent-soft);
    color: var(--accent);
}

.resources-icon-quiz {
    background: rgba(245, 197, 66, 0.18);
    color: #b45309;
}

html[data-theme="dark"] .resources-icon-quiz {
    color: var(--spark);
}

.resources-icon-grade {
    background: var(--brand-soft);
    color: var(--brand-dark);
}

.resources-copy {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    min-width: 0;
    flex: 1;
}

.resources-title {
    font-weight: 700;
    font-size: 0.92rem;
    color: var(--ink-strong);
}

.resources-desc {
    font-size: 0.78rem;
    color: var(--muted);
    line-height: 1.35;
}

.resources-external {
    color: var(--muted);
    font-size: 0.8rem;
    margin-top: 0.2rem;
}

@media (max-width: 991.98px) {
    .resources-panel {
        position: static;
        transform: none;
        width: 100%;
        margin-top: 0.35rem;
        box-shadow: var(--shadow-sm);
        display: none;
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transition: none;
    }

    .nav-resources.is-open .resources-panel {
        display: block;
        transform: none;
    }
}

/* ── Compact study hero ── */
.study-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(14rem, 0.9fr);
    gap: 1rem 1.5rem;
    align-items: stretch;
    margin-top: 1.1rem;
    padding: 1.15rem 1.25rem;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: var(--hero-grad);
    box-shadow: var(--shadow-sm);
}

.study-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin: 0 0 0.35rem;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--accent);
}

.study-hero h1,
.study-page-title {
    font-weight: 800;
    font-size: clamp(1.45rem, 2.6vw, 1.85rem);
    letter-spacing: -0.03em;
    color: var(--ink-strong);
    margin: 0 0 0.35rem;
}

.study-lead,
.study-page-sub {
    color: var(--muted);
    max-width: 36rem;
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.5;
}

.study-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.85rem;
}

.btn-study-primary {
    background: var(--accent);
    color: #fff !important;
    font-weight: 700;
    border-radius: 999px;
    padding: 0.45rem 1rem;
    border: none;
    font-size: 0.875rem;
}

.btn-study-primary:hover {
    background: #0d47a1;
    color: #fff !important;
}

html[data-theme="dark"] .btn-study-primary:hover {
    background: #7bb6f5;
    color: #0b1220 !important;
}

.btn-study-ghost {
    background: transparent;
    color: var(--ink) !important;
    border: 1px solid var(--border);
    font-weight: 600;
    border-radius: 999px;
    padding: 0.45rem 1rem;
    font-size: 0.875rem;
}

.btn-study-ghost:hover {
    border-color: var(--accent);
    color: var(--accent) !important;
    background: var(--accent-soft);
}

.study-hero-meta {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.55rem;
}

.study-stat {
    background: var(--card);
    border: 1px solid var(--border-soft);
    border-radius: 12px;
    padding: 0.7rem 0.65rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.study-stat-value {
    display: block;
    font-weight: 800;
    font-size: 1.05rem;
    color: var(--ink-strong);
    letter-spacing: -0.02em;
    line-height: 1.2;
    word-break: break-word;
}

.study-stat-label {
    display: block;
    margin-top: 0.15rem;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted);
}

.study-stat-subject .study-stat-value {
    color: var(--accent);
    font-size: 0.95rem;
}

.study-section-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 0.85rem;
}

.study-section-title {
    font-size: 1rem;
    font-weight: 800;
    color: var(--ink-strong);
    margin: 0;
}

.study-section-meta {
    font-size: 0.82rem;
    color: var(--muted);
}

/* ── Filters ── */
.filter-bar,
.study-filters {
    background: var(--filter-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem 1.1rem 1.15rem;
    box-shadow: var(--shadow-sm);
}

.filter-bar-head {
    margin-bottom: 0.85rem;
}

.filter-bar-title {
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--ink-strong);
    margin: 0 0 0.15rem;
}

.filter-bar-hint {
    font-size: 0.8rem;
    color: var(--muted);
}

.filter-label {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.35rem;
}

.filter-control {
    border: 1px solid var(--border) !important;
    border-radius: 10px !important;
    background: var(--card) !important;
    color: var(--ink) !important;
    box-shadow: none !important;
    min-height: 2.45rem;
}

.filter-control:hover {
    border-color: #b6c5d8 !important;
}

html[data-theme="dark"] .filter-control:hover {
    border-color: #3a4d6b !important;
}

.filter-control:focus {
    border-color: var(--accent) !important;
    box-shadow: var(--focus-ring) !important;
}

.filter-input-wrap {
    position: relative;
}

.filter-input-wrap > i {
    position: absolute;
    left: 0.8rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--muted);
    pointer-events: none;
}

.filter-input-wrap .filter-control {
    padding-left: 2.2rem;
}

.filter-actions {
    display: flex;
    align-items: flex-end;
}

.btn-clear-filters {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    min-height: 2.45rem;
    padding: 0.45rem 0.95rem;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--ink);
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.2;
    white-space: nowrap;
    transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.btn-clear-filters:hover,
.btn-clear-filters:focus-visible {
    border-color: var(--accent);
    color: var(--accent);
    background: color-mix(in srgb, var(--accent) 8%, var(--card));
}

.btn-clear-filters:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.btn-clear-filters i {
    font-size: 1rem;
    line-height: 1;
}

/* ── Question cards ── */
.submission-card,
.study-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--card);
    box-shadow: var(--shadow-sm);
    padding: 1rem 1.1rem 1.05rem;
    transition: box-shadow 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.submission-card:hover,
.study-card:hover {
    box-shadow: var(--shadow-md);
    border-color: #c3d0e2;
    transform: translateY(-1px);
}

html[data-theme="dark"] .submission-card:hover,
html[data-theme="dark"] .study-card:hover {
    border-color: #355074;
}

.study-card-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.55rem 0.75rem;
    margin-bottom: 0.85rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-soft);
}

.study-card-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.study-card-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: auto;
}

.study-card-date {
    font-size: 0.78rem;
    color: var(--muted);
    white-space: nowrap;
}

.btn-copy-link {
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--muted);
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.18rem 0.55rem;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.btn-copy-link:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-soft);
}

.copy-link-wrap {
    display: inline-flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.12rem;
}

.copy-link-hint {
    font-size: 0.62rem;
    font-weight: 700;
    color: var(--muted);
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.badge-proctor {
    background: var(--brand-soft);
    color: var(--brand-dark);
    border: 1px solid rgba(255, 107, 107, 0.35);
    font-weight: 700;
}

.badge-level {
    background: rgba(14, 165, 233, 0.1);
    color: #0369a1;
    border: 0;
    font-weight: 650;
    font-size: 0.72rem;
    letter-spacing: 0.01em;
    padding: 0.32rem 0.7rem;
    border-radius: 999px;
}

.badge-subject {
    background: rgba(34, 197, 94, 0.12);
    color: #15803d;
    border: 0;
    font-weight: 650;
    font-size: 0.72rem;
    letter-spacing: 0.01em;
    padding: 0.32rem 0.7rem;
    border-radius: 999px;
}

html[data-theme="dark"] .badge-subject {
    background: rgba(74, 222, 128, 0.14);
    color: #86efac;
}

html[data-theme="dark"] .badge-level {
    background: rgba(56, 189, 248, 0.14);
    color: #7dd3fc;
}

.study-card-badges {
    gap: 0.45rem;
    align-items: center;
}

.q-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.q-list li,
.q-item {
    display: flex;
    gap: 0.75rem;
    padding: 0.7rem 0.55rem;
    border-radius: 10px;
    cursor: default;
    transition: background 0.12s ease;
}

.q-list li + li,
.q-item + .q-item {
    margin-top: 0.15rem;
}

.q-list li.has-ts:hover,
.q-list li.has-video:hover,
.q-list li.active,
.q-item:hover {
    background: var(--q-hover);
}

.q-num {
    flex: 0 0 1.65rem;
    height: 1.65rem;
    border-radius: 50%;
    background: var(--surface);
    border: 1px solid var(--border-soft);
    color: var(--muted);
    font-size: 0.75rem;
    font-weight: 700;
    display: grid;
    place-items: center;
    margin-top: 0.1rem;
}

.q-text {
    font-weight: 600;
    color: var(--ink-strong);
    line-height: 1.45;
    font-size: 0.95rem;
}

.q-community-hint {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--muted);
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    margin-left: 0.15rem;
}

.btn-video-explain {
    border: 1px solid rgba(248, 113, 113, 0.45);
    background: var(--danger-soft);
    color: #b91c1c;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 999px;
    padding: 0.2rem 0.7rem;
    line-height: 1.3;
}

html[data-theme="dark"] .btn-video-explain {
    color: #fca5a5;
}

.btn-video-explain:hover {
    background: #fee2e2;
    border-color: #f87171;
    color: #991b1b;
}

html[data-theme="dark"] .btn-video-explain:hover {
    background: rgba(248, 113, 113, 0.18);
    color: #fecaca;
}

.btn-solution {
    border: 1px solid var(--success-border);
    background: var(--success-bg);
    color: var(--success-text);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 999px;
    padding: 0.2rem 0.7rem;
    line-height: 1.3;
}

.btn-solution:hover,
.btn-solution[aria-expanded="true"] {
    filter: brightness(0.97);
}

.q-answer-content {
    margin-top: 0.75rem;
    padding: 0.9rem 1rem;
    border-left: 3px solid #22c55e;
    border-radius: 0 8px 8px 0;
    background: var(--surface);
    color: var(--ink);
    line-height: 1.55;
}

.q-answer-content p {
    margin-bottom: 0.7rem;
}

.q-answer-content p:last-child {
    margin-bottom: 0;
}

.q-answer-content .ans-label {
    display: block;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--success-text);
    margin-bottom: 0.28rem;
}

.q-answer-content h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--ink-strong);
    margin: 0.85rem 0 0.35rem;
}

.q-answer-content ul {
    margin: 0.35rem 0 0.8rem;
    padding-left: 1.2rem;
}

.q-answer-content li {
    margin-bottom: 0.25rem;
    display: list-item;
    padding: 0;
    background: transparent !important;
}

.q-answer-content hr {
    border: 0;
    border-top: 1px dashed var(--border);
    margin: 1rem 0;
}

.q-answer-content code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.86em;
}

.q-answer-content p code,
.q-answer-content li code,
.q-answer-content h4 code {
    background: var(--code-inline-bg);
    color: var(--ink-strong);
    padding: 0.12rem 0.38rem;
    border-radius: 4px;
}

.q-answer-content pre {
    background: var(--pre-bg);
    color: var(--pre-fg);
    padding: 0.8rem 1rem;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 0.8rem;
    line-height: 1.45;
    margin: 0.45rem 0 0.9rem;
}

.q-answer-content pre code {
    background: none;
    color: inherit;
    padding: 0;
    font-size: inherit;
}

.btn-community {
    border: 1px solid rgba(59, 130, 246, 0.35);
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 999px;
    padding: 0.2rem 0.7rem;
    line-height: 1.3;
}

.btn-community:hover,
.btn-community[aria-expanded="true"] {
    filter: brightness(0.97);
}

.community-panel {
    margin-top: 0.85rem;
    padding-top: 0.75rem;
    border-top: 1px dashed var(--border);
}

.community-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.65rem;
}

.paste-solution-form {
    margin-bottom: 0.85rem;
    padding: 0.75rem 0.85rem;
    background: var(--surface);
    border: 1px solid var(--border-soft);
    border-radius: 10px;
}

.paste-solution-form .form-control {
    background: var(--card);
    border-color: var(--border);
    color: var(--ink);
}

.btn-brand-save {
    background: var(--brand);
    border-color: var(--brand);
    color: #fff;
    font-weight: 600;
}

.btn-brand-save:hover {
    background: var(--brand-dark);
    border-color: var(--brand-dark);
    color: #fff;
}

.community-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.solution-comment {
    border: 1px solid var(--border-soft);
    border-radius: 10px;
    padding: 0.7rem 0.85rem 0.55rem;
    background: var(--card-elevated);
}

.solution-comment.is-mine {
    border-color: rgba(91, 163, 240, 0.45);
    background: var(--accent-soft);
}

.solution-comment-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 0.35rem;
    font-size: 0.8rem;
}

.solution-author {
    font-weight: 700;
    color: var(--ink-strong);
}

.badge-mine {
    background: var(--accent-soft);
    color: var(--accent);
    font-weight: 600;
    font-size: 0.68rem;
}

.badge-top {
    background: rgba(245, 158, 11, 0.15);
    color: #b45309;
    font-weight: 600;
    font-size: 0.68rem;
}

html[data-theme="dark"] .badge-top {
    color: #fbbf24;
}

.solution-time {
    margin-left: auto;
    font-size: 0.72rem;
}

.solution-comment-body.q-answer-content {
    margin-top: 0.35rem;
    border-left-color: #3b82f6;
    background: var(--surface);
}

.solution-votes {
    display: flex;
    gap: 0.35rem;
    margin-top: 0.45rem;
}

.btn-vote {
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--muted);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 999px;
    padding: 0.15rem 0.55rem;
    line-height: 1.3;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.btn-vote:hover {
    background: var(--surface);
    color: var(--ink);
}

.btn-vote.is-active-like {
    background: var(--success-bg);
    border-color: var(--success-border);
    color: var(--success-text);
}

.btn-vote.is-active-dislike {
    background: var(--danger-soft);
    border-color: rgba(248, 113, 113, 0.45);
    color: #b91c1c;
}

html[data-theme="dark"] .btn-vote.is-active-dislike {
    color: #fca5a5;
}

.community-empty {
    margin-top: 0.15rem;
}

.advice-block {
    background: var(--warning-bg);
    border-left: 3px solid var(--warning-border);
    border-radius: 0 10px 10px 0;
    padding: 0.75rem 1rem;
    font-size: 0.92rem;
    color: var(--ink);
}

.set-add-question {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    margin: 0.15rem 0 0.45rem;
    padding: 0.35rem 0.55rem 0.55rem;
    border-bottom: 1px dashed var(--border-soft);
}

.set-add-q-plus {
    flex: 0 0 1.65rem;
    height: 1.65rem;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: var(--cyan-soft);
    border: 1px dashed rgba(6, 182, 212, 0.55);
    color: var(--cyan-strong);
    font-size: 0.85rem;
}

.set-add-q-input {
    flex: 1 1 auto;
    min-width: 0;
    border-radius: 10px !important;
    border: 1px solid var(--border-soft) !important;
    background: var(--surface) !important;
    font-size: 0.92rem !important;
    padding: 0.45rem 0.75rem !important;
    color: var(--ink) !important;
}

.set-add-q-input:focus {
    border-color: rgba(6, 182, 212, 0.55) !important;
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15) !important;
}

.set-add-q-btn {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border-radius: 999px;
    border: 1px solid rgba(6, 182, 212, 0.4);
    background: var(--cyan-soft);
    color: var(--cyan-strong);
    font-weight: 800;
    font-size: 0.78rem;
    padding: 0.4rem 0.8rem;
    white-space: nowrap;
}

.set-add-q-btn:hover {
    background: rgba(6, 182, 212, 0.2);
    color: var(--cyan-strong);
}

.set-add-q-btn.is-busy {
    opacity: 0.7;
    pointer-events: none;
}

.set-add-q-error {
    flex: 1 0 100%;
    margin: 0.15rem 0 0 2.3rem;
    font-size: 0.78rem;
    font-weight: 700;
    color: #b91c1c;
}

.set-add-question-locked {
    flex-wrap: wrap;
}

.set-add-q-login-copy {
    flex: 1 1 12rem;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    font-size: 0.82rem;
    color: var(--muted);
    line-height: 1.35;
}

.set-add-q-login-copy strong {
    color: var(--ink);
    font-size: 0.88rem;
}

.set-add-q-login {
    text-decoration: none;
}

.google-login-card {
    max-width: 28rem;
    padding: 1.5rem 1.35rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--card);
    box-shadow: var(--shadow-sm);
}

.google-signin-host {
    min-height: 44px;
    display: flex;
    justify-content: flex-start;
}

.google-signin-error {
    margin: 0.75rem 0 0;
    font-size: 0.85rem;
    font-weight: 700;
    color: #b91c1c;
}

.q-chip-delete {
    color: #b91c1c !important;
    border-color: rgba(185, 28, 28, 0.28) !important;
    background: rgba(185, 28, 28, 0.08) !important;
}

.q-chip-delete:hover {
    background: rgba(185, 28, 28, 0.16) !important;
}

.q-chip-edit {
    color: #1d4ed8 !important;
    border-color: rgba(29, 78, 216, 0.28) !important;
    background: rgba(29, 78, 216, 0.08) !important;
    text-decoration: none !important;
}

.q-chip-edit:hover {
    background: rgba(29, 78, 216, 0.16) !important;
    color: #1e40af !important;
}

.student-dash-card {
    padding: 1rem 1.1rem;
}

.student-dash-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.35rem;
    font-weight: 700;
}

.student-dash-questions {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    margin-top: 0.75rem;
}

.student-dash-q {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem 0.85rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg, var(--card));
}

.student-dash-q-text {
    flex: 1 1 14rem;
    min-width: 0;
    white-space: pre-wrap;
    word-break: break-word;
}

.student-dash-q-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    flex-shrink: 0;
}

.nav-student-email {
    max-width: 14rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--muted);
}

@media (max-width: 576px) {
    .set-add-question {
        flex-wrap: wrap;
    }

    .set-add-q-btn {
        margin-left: 2.3rem;
    }
}

.sidebar-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem 1.1rem;
    background: var(--card);
    box-shadow: var(--shadow-sm);
}

.sidebar-card h6 {
    font-weight: 800;
    margin-bottom: 0.75rem;
    color: var(--ink-strong);
}

.sidebar-more {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--accent);
    text-decoration: none;
}

.sidebar-more:hover {
    text-decoration: underline;
}

.sidebar-proctor-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 0;
    border-bottom: 1px solid var(--border-soft);
}

.sidebar-proctor-row:last-child {
    border-bottom: 0;
}

.sidebar-proctor-row a {
    font-weight: 600;
    color: var(--ink-strong);
}

.sidebar-proctor-row a:hover {
    color: var(--accent);
}

.sidebar-proctor-count {
    color: var(--muted);
    font-size: 0.8rem;
    white-space: nowrap;
}

.tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: var(--surface);
    color: var(--ink);
    border: 1px solid var(--border-soft);
    border-radius: 999px;
    padding: 0.25rem 0.65rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-decoration: none;
    margin: 0.15rem;
    transition: background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
}

.tag-chip:hover {
    background: var(--brand-soft);
    border-color: rgba(255, 107, 107, 0.35);
    color: var(--brand-dark);
}

.tag-chip .count {
    color: var(--muted);
    font-weight: 500;
}

.disclaimer-banner {
    background: var(--warning-bg);
    color: #9a3412;
    text-align: center;
    font-size: 0.8rem;
    padding: 0.65rem 1rem;
    border-top: 1px solid rgba(251, 146, 60, 0.35);
    border-bottom: 1px solid rgba(251, 146, 60, 0.35);
    margin-top: 3rem;
}

html[data-theme="dark"] .disclaimer-banner {
    color: #fdba74;
}

.yt-wrap {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    background: #0f172a;
    border-radius: 12px;
    overflow: hidden;
}

.yt-wrap > div,
.yt-wrap iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.panel-shell {
    background: var(--surface);
    min-height: 70vh;
}

.panel-stat {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1rem 1.25rem;
}

.panel-stat .num {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--brand);
}

.question-row {
    border: 1px dashed var(--border);
    border-radius: 12px;
    padding: 1rem;
    background: var(--card);
    margin-bottom: 0.75rem;
}

.empty-state {
    text-align: center;
    padding: 2.5rem 1.25rem;
    color: var(--muted);
}

.empty-icon {
    width: 3rem;
    height: 3rem;
    margin: 0 auto 0.75rem;
    border-radius: 12px;
    display: grid;
    place-items: center;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 1.35rem;
}

.study-pagination .page-link {
    background: var(--card);
    border-color: var(--border);
    color: var(--ink);
}

.study-pagination .page-item.disabled .page-link {
    background: var(--surface);
    color: var(--muted);
}

.study-pagination .page-link:hover {
    background: var(--accent-soft);
    color: var(--accent);
    border-color: var(--border);
}

.nav-link-highlight {
    background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
    color: #c2410c !important;
    border-radius: 999px;
    padding: 0.35rem 0.9rem !important;
    font-weight: 700 !important;
    border: 1px solid #fdba74;
}

html[data-theme="dark"] .nav-link-highlight {
    background: rgba(234, 88, 12, 0.18);
    color: #fdba74 !important;
    border-color: rgba(251, 146, 60, 0.4);
}

.nav-link-highlight:hover {
    background: linear-gradient(135deg, #ffedd5 0%, #fed7aa 100%);
    color: #9a3412 !important;
}

.free-materials-banner {
    background: linear-gradient(120deg, #fff7ed 0%, #ffedd5 45%, #fef3c7 100%);
    border: 2px solid #fb923c;
    border-radius: 16px;
    padding: 1rem 1.25rem;
    box-shadow: 0 10px 30px rgba(251, 146, 60, 0.14);
}

html[data-theme="dark"] .free-materials-banner {
    background: linear-gradient(120deg, rgba(154, 52, 18, 0.28), rgba(234, 88, 12, 0.18));
    border-color: rgba(251, 146, 60, 0.45);
}

.free-materials-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.free-materials-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: #ea580c;
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0.35rem 0.65rem;
    border-radius: 999px;
    flex-shrink: 0;
}

.free-materials-content {
    flex: 1;
    min-width: 200px;
}

.free-materials-title {
    font-size: 1.2rem;
    font-weight: 800;
    color: #9a3412;
    margin-bottom: 0.25rem;
}

html[data-theme="dark"] .free-materials-title {
    color: #fdba74;
}

.free-materials-desc {
    color: #c2410c;
    font-size: 0.92rem;
}

html[data-theme="dark"] .free-materials-desc {
    color: #fed7aa;
}

.btn-free-materials {
    background: #ea580c;
    color: #fff !important;
    font-weight: 700;
    border-radius: 999px;
    padding: 0.55rem 1.15rem;
    border: none;
    white-space: nowrap;
    transition: background 0.2s ease, transform 0.2s ease;
}

.btn-free-materials:hover {
    background: #c2410c;
    color: #fff !important;
    transform: translateY(-1px);
}

.footer-link-highlight {
    color: #ea580c !important;
    font-weight: 700;
}

.footer-link-highlight:hover {
    color: #c2410c !important;
}

/* Video modal */
body.video-modal-open {
    overflow: hidden;
}

.video-modal[hidden] {
    display: none !important;
}

.video-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.video-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.72);
    backdrop-filter: blur(2px);
}

.video-modal-panel {
    position: relative;
    z-index: 1;
    width: min(920px, 100%);
    background: #0f172a;
    color: #f8fafc;
    border-radius: 16px;
    padding: 1rem 1rem 1.25rem;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.45);
}

.video-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.video-modal-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin: 0;
}

.video-modal-close {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    border: 1px solid rgba(248, 250, 252, 0.25);
    background: rgba(248, 250, 252, 0.08);
    color: #f8fafc;
    border-radius: 999px;
    padding: 0.35rem 0.85rem;
    font-size: 0.85rem;
    font-weight: 600;
}

.video-modal-close:hover {
    background: rgba(248, 113, 113, 0.2);
    border-color: #f87171;
}

.video-modal-question {
    font-size: 0.9rem;
    color: #cbd5e1;
    margin: 0 0 0.85rem;
}

.video-modal-player {
    border-radius: 12px;
}

/* Legacy hero class kept for any residual use */
.hero-viva {
    background: var(--hero-grad);
    color: var(--ink-strong);
    border-radius: 16px;
    padding: 1.5rem 1.25rem;
    margin-top: 1.1rem;
    border: 1px solid var(--border);
}

.hero-viva h1 {
    font-weight: 800;
    font-size: clamp(1.5rem, 3vw, 2rem);
}

.hero-viva .lead {
    color: var(--muted);
}

.stat-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.35rem 0.8rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ink);
}

@media (max-width: 991.98px) {
    .study-hero {
        grid-template-columns: 1fr;
    }

    .study-hero-meta {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 768px) {
    .study-hero {
        padding: 1rem;
    }

    .study-card-meta {
        width: 100%;
        justify-content: space-between;
        margin-left: 0;
    }

    .free-materials-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .btn-free-materials {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 520px) {
    .study-hero-meta {
        grid-template-columns: 1fr;
    }
}

/* ═══════════════════════════════════════════
   Community answer browser + personality
   ═══════════════════════════════════════════ */

.study-card {
    position: relative;
    overflow: hidden;
}

.study-card-glow {
    position: absolute;
    top: -40%;
    right: -20%;
    width: 14rem;
    height: 14rem;
    background: radial-gradient(circle, var(--glow-blue), transparent 68%);
    pointer-events: none;
    opacity: 0.85;
}

html[data-theme="dark"] .study-card-glow {
    background: radial-gradient(circle, var(--glow-blue), transparent 70%);
    opacity: 0.55;
}

.official-solution {
    position: relative;
}

.official-solution-label {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--spark);
    margin-bottom: 0.55rem;
}

.answer-browser {
    margin-top: 1rem;
    border-radius: 16px;
    border: 1px solid var(--border);
    background:
        linear-gradient(180deg, rgba(6, 182, 212, 0.06), transparent 38%),
        var(--surface);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

html[data-theme="dark"] .answer-browser {
    background:
        linear-gradient(180deg, rgba(34, 211, 238, 0.07), transparent 42%),
        var(--surface);
}

.answer-browser-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.85rem;
}

.answer-browser-brand {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
}

.answer-browser-spark,
.my-solution-spark {
    width: 0.7rem;
    height: 0.7rem;
    margin-top: 0.35rem;
    border-radius: 50%;
    background: var(--spark);
    box-shadow: 0 0 0 4px var(--spark-soft), 0 0 18px var(--spark);
    flex-shrink: 0;
    animation: spark-pulse 2.8s ease-in-out infinite;
}

@keyframes spark-pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.12); opacity: 0.85; }
}

.answer-browser-title,
.my-solution-title {
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--ink-strong);
    margin: 0;
}

.answer-browser-sub {
    font-size: 0.78rem;
    color: var(--muted);
}

.answer-sort {
    display: inline-flex;
    padding: 0.2rem;
    border-radius: 999px;
    background: var(--card);
    border: 1px solid var(--border);
    gap: 0.15rem;
}

.answer-sort-btn {
    border: 0;
    background: transparent;
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 0.38rem 0.75rem;
    border-radius: 999px;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.answer-sort-btn:hover {
    color: var(--ink-strong);
}

.answer-sort-btn.is-active {
    background: linear-gradient(135deg, #ffe27a, var(--spark));
    color: #1a1400;
    box-shadow: 0 0 0 3px var(--spark-soft), 0 4px 14px rgba(245, 197, 66, 0.28);
}

.answer-stage {
    position: relative;
    min-height: 4rem;
}

.answer-card {
    position: relative;
    overflow: hidden;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--card);
    padding: 0.95rem 1rem 1rem;
    box-shadow: var(--shadow-md);
    transform-origin: center left;
    backface-visibility: hidden;
}

.answer-card-glow {
    position: absolute;
    inset: auto -15% -45% auto;
    width: 11rem;
    height: 11rem;
    background: radial-gradient(circle, var(--glow-coral), transparent 70%);
    pointer-events: none;
}

.answer-card.is-leave-left {
    animation: ans-leave-left 0.15s ease forwards;
}
.answer-card.is-leave-right {
    animation: ans-leave-right 0.15s ease forwards;
}
.answer-card.is-enter-left {
    animation: ans-enter-left 0.16s ease;
}
.answer-card.is-enter-right {
    animation: ans-enter-right 0.16s ease;
}

@keyframes ans-leave-left {
    to { opacity: 0; transform: translateX(-10px); }
}
@keyframes ans-leave-right {
    to { opacity: 0; transform: translateX(10px); }
}
@keyframes ans-enter-left {
    from { opacity: 0; transform: translateX(-12px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes ans-enter-right {
    from { opacity: 0; transform: translateX(12px); }
    to { opacity: 1; transform: translateX(0); }
}

.answer-card-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.65rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.7rem;
    border-bottom: 1px solid var(--border-soft);
}

.answer-author-wrap {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    min-width: 0;
}

.answer-avatar {
    width: 2.15rem;
    height: 2.15rem;
    border-radius: 12px;
    display: grid;
    place-items: center;
    font-weight: 800;
    font-size: 0.9rem;
    color: #1a1400;
    background: linear-gradient(135deg, #ffe27a, var(--spark));
    box-shadow: 0 0 0 3px var(--spark-soft);
    flex-shrink: 0;
}

.answer-author {
    font-weight: 800;
    color: var(--ink-strong);
    line-height: 1.2;
}

.answer-time {
    font-size: 0.75rem;
    color: var(--muted);
}

.answer-votes {
    display: flex;
    gap: 0.35rem;
}

.answer-card-body {
    margin-top: 0;
    border-left-color: var(--accent);
}

.answer-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.answer-nav.is-solo .answer-nav-btn {
    visibility: hidden;
    pointer-events: none;
}

.answer-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--ink);
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: 999px;
    padding: 0.42rem 0.8rem;
    cursor: pointer;
    transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.answer-nav-btn:hover:not(:disabled) {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-soft);
    box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.12);
}

.answer-nav-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.answer-jump-wrap {
    position: relative;
}

.answer-jump-wrap .answer-jump-panel {
    left: 50%;
    right: auto;
    transform: translateX(-50%);
}

.answer-pos-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--ink-strong);
    font-weight: 800;
    font-size: 0.85rem;
    border-radius: 999px;
    padding: 0.42rem 0.85rem;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}

.answer-pos-btn:hover {
    border-color: var(--spark);
    box-shadow: 0 0 0 3px var(--spark-soft);
}

.answer-pos-sep {
    color: var(--muted);
    font-weight: 600;
    font-size: 0.75rem;
}

.answer-pos-btn .bi {
    font-size: 0.65rem;
    color: var(--muted);
}

.answer-jump-panel {
    position: absolute;
    left: 50%;
    bottom: calc(100% + 0.45rem);
    transform: translateX(-50%);
    width: min(15rem, calc(100vw - 2rem));
    padding: 0.8rem;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--card);
    box-shadow: var(--shadow-lg);
    z-index: 20;
}

.answer-jump-label {
    display: block;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted);
    margin-bottom: 0.4rem;
}

.answer-jump-row {
    display: flex;
    gap: 0.4rem;
}

.answer-jump-input {
    flex: 1;
    min-width: 0;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
    color: var(--ink);
    padding: 0.4rem 0.55rem;
    font-weight: 700;
}

.answer-jump-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: var(--focus-ring);
}

.answer-jump-input.is-invalid {
    border-color: #f87171;
}

.answer-jump-go {
    border: 0;
    border-radius: 10px;
    padding: 0.4rem 0.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, #ffe27a, var(--spark));
    color: #1a1400;
    cursor: pointer;
}

.answer-jump-hint {
    margin-top: 0.4rem;
    font-size: 0.72rem;
    color: var(--muted);
}

.answer-empty {
    text-align: center;
    padding: 1.5rem 1rem;
    border-radius: 14px;
    border: 1px dashed var(--border);
    background: var(--card);
}

.answer-empty-icon {
    width: 2.75rem;
    height: 2.75rem;
    margin: 0 auto 0.65rem;
    border-radius: 12px;
    display: grid;
    place-items: center;
    background: var(--spark-soft);
    color: #b45309;
    font-size: 1.25rem;
}

html[data-theme="dark"] .answer-empty-icon {
    color: var(--spark);
}

.answer-empty-title {
    font-size: 1rem;
    font-weight: 800;
    color: var(--ink-strong);
    margin: 0 0 0.25rem;
}

.answer-empty-copy {
    font-size: 0.85rem;
    color: var(--muted);
    max-width: 22rem;
    margin-inline: auto;
}

.my-solution-panel {
    margin-top: 0.75rem;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--card);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.my-solution-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.55rem;
    margin-bottom: 0.65rem;
}

.my-solution-brand {
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.my-solution-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.btn-community-primary {
    background: linear-gradient(135deg, #ffe27a, var(--spark)) !important;
    border-color: transparent !important;
    color: #1a1400 !important;
    box-shadow: 0 0 0 3px var(--spark-soft);
}

.btn-community-primary:hover {
    filter: brightness(0.98);
    color: #1a1400 !important;
}

.my-solution-card {
    border-radius: 12px;
    border: 1px solid rgba(91, 163, 240, 0.35);
    background: var(--accent-soft);
    padding: 0.8rem 0.9rem;
}

.my-solution-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.45rem;
    margin-bottom: 0.45rem;
    font-size: 0.8rem;
}

.my-solution-body {
    margin-top: 0;
    border-left-color: var(--accent);
    background: var(--card);
}

.my-solution-prompt {
    font-size: 0.85rem;
    color: var(--muted);
}

/* Proctor personality */
.proctor-hero {
    padding: 1.15rem 1.25rem;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: var(--hero-grad);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: visible;
}

.proctor-hero::after {
    content: "";
    position: absolute;
    top: -30%;
    right: -10%;
    width: 16rem;
    height: 16rem;
    background: radial-gradient(circle, var(--glow-coral), transparent 68%);
    pointer-events: none;
}

.proctor-hero-row {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    position: relative;
    z-index: 1;
}

.proctor-heading-wrap {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.65rem 0.85rem;
    min-width: 0;
}

.proctor-hero-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(4.5rem, 1fr));
    gap: 0.5rem;
    position: relative;
    z-index: 1;
}

.personality-wrap {
    position: relative;
}

.personality-trigger {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--ink);
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: 999px;
    padding: 0.4rem 0.8rem;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.personality-trigger .bi-stars {
    color: var(--spark);
    filter: drop-shadow(0 0 6px var(--spark-soft));
}

.personality-trigger:hover,
.personality-wrap.is-open .personality-trigger {
    border-color: var(--spark);
    box-shadow: 0 0 0 3px var(--spark-soft), var(--shadow-md);
}

.personality-caret {
    font-size: 0.7rem;
    color: var(--muted);
    transition: transform 0.15s ease;
}

.personality-wrap.is-open .personality-caret {
    transform: rotate(180deg);
}

.personality-card {
    position: fixed;
    top: 0;
    left: 0;
    width: min(22rem, calc(100vw - 1.5rem));
    max-height: min(70vh, 28rem);
    overflow: auto;
    padding: 1rem 1rem 1.05rem;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: var(--card);
    box-shadow: var(--shadow-lg), 0 0 0 1px rgba(6, 182, 212, 0.12);
    z-index: 2000;
}

.personality-card.is-entering {
    animation: personality-in 0.16s ease;
}

@keyframes personality-in {
    from { opacity: 0; transform: translateY(-6px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.personality-status-dot {
    width: 0.45rem;
    height: 0.45rem;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 0 3px var(--cyan-soft), 0 0 10px var(--cyan);
}

.personality-status-pill {
    font-size: 0.65rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.12rem 0.4rem;
}

.personality-trigger.has-data {
    border-color: rgba(6, 182, 212, 0.45);
}

.personality-trigger.is-empty:hover {
    border-color: var(--spark);
}

.personality-available-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--cyan-strong);
    margin-bottom: 0.65rem;
}

.personality-card-glow {
    position: absolute;
    top: -35%;
    right: -20%;
    width: 10rem;
    height: 10rem;
    background: radial-gradient(circle, var(--spark-soft), transparent 70%);
    pointer-events: none;
}

.personality-close {
    position: absolute;
    top: 0.65rem;
    right: 0.65rem;
    width: 1.85rem;
    height: 1.85rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--muted);
    display: grid;
    place-items: center;
    cursor: pointer;
    z-index: 2;
}

.personality-close:hover {
    color: var(--ink-strong);
    border-color: var(--accent);
}

.personality-empty {
    text-align: center;
    padding: 0.85rem 0.4rem 0.35rem;
    position: relative;
    z-index: 1;
}

.personality-empty-icon {
    width: 2.6rem;
    height: 2.6rem;
    margin: 0 auto 0.6rem;
    border-radius: 12px;
    display: grid;
    place-items: center;
    background: var(--spark-soft);
    color: #b45309;
    font-size: 1.15rem;
}

html[data-theme="dark"] .personality-empty-icon {
    color: var(--spark);
}

.personality-empty-title {
    font-size: 0.98rem;
    font-weight: 800;
    color: var(--ink-strong);
    margin: 0 0 0.35rem;
}

.personality-empty-copy {
    font-size: 0.82rem;
    color: var(--muted);
    line-height: 1.45;
}

.personality-body {
    position: relative;
    z-index: 1;
    padding-right: 1.4rem;
}

.personality-summary {
    font-weight: 600;
    color: var(--ink-strong);
    margin-bottom: 0.75rem;
}

.personality-section {
    margin-top: 0.7rem;
}

.personality-section h3 {
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--muted);
    margin: 0 0 0.3rem;
}

.personality-section p {
    margin: 0;
    font-size: 0.88rem;
    color: var(--ink);
    line-height: 1.45;
}

.personality-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.personality-pill {
    display: inline-flex;
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 700;
}

/* Collapsible study folds */
.study-fold-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    border: 0;
    background: transparent;
    color: inherit;
    text-align: left;
    padding: 0.85rem 0.95rem;
    cursor: pointer;
    min-height: 3rem;
}

.study-fold-toggle:hover {
    background: rgba(6, 182, 212, 0.05);
}

.study-fold-toggle:focus-visible {
    outline: none;
    box-shadow: inset 0 0 0 2px var(--cyan);
}

.study-fold-lead {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    min-width: 0;
}

.study-fold-icon {
    width: 2.1rem;
    height: 2.1rem;
    border-radius: 11px;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    font-size: 1rem;
}

.study-fold-icon-community {
    background: var(--cyan-soft);
    color: var(--cyan-strong);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.08);
}

.study-fold-icon-mine {
    background: var(--accent-soft);
    color: var(--accent);
}

.study-fold.is-expanded .study-fold-icon-community {
    box-shadow: 0 0 0 3px var(--cyan-soft), 0 0 14px rgba(6, 182, 212, 0.28);
}

.study-fold-copy {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    min-width: 0;
}

.study-fold-title {
    font-size: 0.92rem;
    font-weight: 800;
    color: var(--ink-strong);
    line-height: 1.2;
}

.study-fold-meta {
    font-size: 0.76rem;
    font-weight: 600;
    color: var(--muted);
}

.study-fold-chevron {
    color: var(--muted);
    transition: transform 0.18s ease;
    flex-shrink: 0;
}

.study-fold.is-expanded .study-fold-chevron {
    transform: rotate(180deg);
    color: var(--cyan-strong);
}

.study-fold-body {
    padding: 0 0.95rem 0.95rem;
    border-top: 1px solid var(--border-soft);
}

.study-fold.is-fold-animating .study-fold-body {
    animation: fold-in 0.18s ease;
}

@keyframes fold-in {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

.my-solution-actions-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin: 0.75rem 0 0.65rem;
}

.answer-browser-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.65rem;
    margin: 0.75rem 0 0.7rem;
}

.btn-study-primary {
    background: linear-gradient(135deg, var(--cyan), var(--cyan-strong));
    color: #fff !important;
    font-weight: 700;
    border-radius: 999px;
    padding: 0.45rem 1rem;
    border: none;
    font-size: 0.875rem;
    box-shadow: 0 0 0 3px var(--cyan-soft);
}

.btn-study-primary:hover {
    background: var(--cyan-strong);
    color: #fff !important;
}

html[data-theme="dark"] .btn-study-primary:hover {
    color: #06202a !important;
}

.answer-sort-btn.is-active {
    background: linear-gradient(135deg, #7dd3fc, var(--cyan));
    color: #06202a;
    box-shadow: 0 0 0 3px var(--cyan-soft), 0 4px 14px rgba(6, 182, 212, 0.25);
}

.answer-pos-btn:hover {
    border-color: var(--cyan);
    box-shadow: 0 0 0 3px var(--cyan-soft);
}

.nav-link-custom:hover,
.nav-link-custom:focus {
    color: var(--cyan-strong) !important;
    background: var(--cyan-soft);
}

.q-community-hint {
    color: var(--cyan-strong);
}

.study-kicker {
    color: var(--cyan-strong);
}

.filter-input-wrap > i {
    color: var(--cyan-strong);
    opacity: 0.75;
}

@media (max-width: 768px) {
    .answer-nav-btn span {
        display: none;
    }

    .answer-browser-head {
        flex-direction: column;
    }

    .proctor-hero-stats {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .answer-browser-spark,
    .my-solution-spark,
    .study-fold-chevron,
    .personality-status-dot {
        animation: none !important;
        transition: none !important;
    }

    .answer-card.is-leave-left,
    .answer-card.is-leave-right,
    .answer-card.is-enter-left,
    .answer-card.is-enter-right,
    .personality-card,
    .personality-card.is-entering,
    .study-fold.is-fold-animating .study-fold-body {
        animation: none !important;
    }
}

/* -------------------------------------------
   Density pass — compact actions + book nav
   ------------------------------------------- */

.q-actions {
    gap: 0.35rem !important;
}

.q-action-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--ink);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 999px;
    padding: 0.22rem 0.7rem;
    line-height: 1.3;
    transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease, color 0.15s ease;
}

.q-chip-community {
    border-color: rgba(6, 182, 212, 0.35);
    color: var(--cyan-strong);
}

.q-chip-community:hover,
.q-chip-community.is-open {
    background: var(--cyan-soft);
    border-color: var(--cyan);
    box-shadow: 0 0 0 3px var(--cyan-soft);
    color: var(--cyan-strong);
}

.q-chip-mine {
    border-color: rgba(21, 101, 192, 0.3);
    color: var(--accent);
}

.q-chip-mine:hover,
.q-chip-mine.is-open {
    background: var(--accent-soft);
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.q-chip-mine.is-submitted .q-chip-status {
    background: rgba(34, 197, 94, 0.14);
    color: #15803d;
    border-radius: 999px;
    padding: 0.05rem 0.4rem;
    font-size: 0.65rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

html[data-theme="dark"] .q-chip-mine.is-submitted .q-chip-status {
    color: #86efac;
}

.q-chip-asked {
    border-color: rgba(245, 197, 66, 0.4);
    color: #9a6b00;
    cursor: default;
    user-select: none;
}

html[data-theme="dark"] .q-chip-asked {
    color: #f5d56e;
    border-color: rgba(245, 197, 66, 0.35);
}

.q-chip-asked-count {
    background: var(--spark-soft);
    color: #8a5a00;
}

html[data-theme="dark"] .q-chip-asked-count {
    color: #ffe9a8;
}

.q-chip-count {
    min-width: 1.1rem;
    height: 1.1rem;
    border-radius: 999px;
    display: inline-grid;
    place-items: center;
    background: var(--cyan-soft);
    color: var(--cyan-strong);
    font-size: 0.68rem;
    font-weight: 800;
    padding: 0 0.28rem;
}

.q-panels {
    margin-top: 0.55rem;
}

.q-panel {
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--card);
    box-shadow: var(--shadow-md);
    padding: 0.85rem;
    margin-top: 0.35rem;
}

.q-panel.is-entering {
    animation: panel-in 0.16s ease;
}

@keyframes panel-in {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

.q-panel-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.65rem;
}

.q-panel-title-row {
    display: flex;
    align-items: flex-start;
    gap: 0.55rem;
}

.q-panel-icon {
    width: 1.85rem;
    height: 1.85rem;
    border-radius: 10px;
    display: grid;
    place-items: center;
    flex-shrink: 0;
}

.q-panel-icon-community {
    background: var(--cyan-soft);
    color: var(--cyan-strong);
}

.q-panel-icon-mine {
    background: var(--accent-soft);
    color: var(--accent);
}

.q-panel-title {
    font-size: 0.9rem;
    font-weight: 800;
    margin: 0;
    color: var(--ink-strong);
}

.q-panel-sub {
    font-size: 0.75rem;
    color: var(--muted);
}

.q-panel-sub-sep {
    margin: 0 0.2rem;
    opacity: 0.55;
}

.q-panel-close {
    width: 1.85rem;
    height: 1.85rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--muted);
    display: grid;
    place-items: center;
    cursor: pointer;
}

.q-panel-close:hover {
    color: var(--ink-strong);
    border-color: var(--cyan);
}

.answer-reading-frame {
    position: relative;
    border-radius: 16px;
    padding: 0.35rem;
    background:
        linear-gradient(180deg, rgba(6, 182, 212, 0.08), transparent 42%),
        var(--surface);
    border: 1px solid var(--border-soft);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

html[data-theme="dark"] .answer-reading-frame {
    background:
        linear-gradient(180deg, rgba(6, 182, 212, 0.12), transparent 45%),
        rgba(8, 18, 36, 0.55);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.answer-book-nav {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 0.55rem;
    align-items: center;
    margin-top: 0.85rem;
}

.answer-book-nav.is-solo .answer-book-btn {
    opacity: 0.4;
}

.answer-book-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    justify-self: center;
}

.answer-book-counter {
    font-weight: 800;
    font-size: 0.95rem;
    color: var(--ink-strong);
    letter-spacing: 0.01em;
    white-space: nowrap;
}

.answer-book-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    min-height: 2.55rem;
    padding: 0.5rem 0.95rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--ink-strong);
    font-weight: 800;
    font-size: 0.88rem;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.answer-book-btn:hover:not(:disabled) {
    border-color: var(--cyan);
    background: var(--cyan-soft);
    color: var(--cyan-strong);
    box-shadow: 0 0 0 3px var(--cyan-soft);
}

.answer-book-btn[data-answer-prev] {
    justify-self: start;
}

.answer-book-btn-next {
    justify-self: end;
    background: linear-gradient(135deg, #7dd3fc, var(--cyan));
    border-color: transparent;
    color: #06202a;
    box-shadow: 0 0 0 3px var(--cyan-soft);
}

.answer-book-btn-next:hover:not(:disabled) {
    filter: brightness(1.03);
    color: #06202a;
}

.answer-book-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
    box-shadow: none;
}

.answer-jump-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--muted);
    font-weight: 700;
    font-size: 0.75rem;
    border-radius: 999px;
    padding: 0.28rem 0.7rem;
    cursor: pointer;
    white-space: nowrap;
}

.answer-jump-toggle:hover,
.answer-jump-toggle[aria-expanded="true"] {
    border-color: var(--spark);
    color: var(--ink-strong);
    box-shadow: 0 0 0 3px var(--spark-soft);
}

.answer-stage {
    position: relative;
    overflow: hidden;
    min-height: 3.5rem;
    perspective: 1200px;
    display: grid;
}

.answer-stage > .answer-card {
    grid-area: 1 / 1;
    width: 100%;
}

.answer-card.is-page-out-left {
    animation: page-out-left 0.26s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}
.answer-card.is-page-out-right {
    animation: page-out-right 0.26s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}
.answer-card.is-page-in-left {
    animation: page-in-left 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}
.answer-card.is-page-in-right {
    animation: page-in-right 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes page-out-left {
    to {
        opacity: 0;
        transform: translateX(-28%) rotateY(-8deg) scale(0.98);
        filter: brightness(0.96);
    }
}
@keyframes page-out-right {
    to {
        opacity: 0;
        transform: translateX(28%) rotateY(8deg) scale(0.98);
        filter: brightness(0.96);
    }
}
@keyframes page-in-left {
    from {
        opacity: 0;
        transform: translateX(-32%) rotateY(8deg) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateX(0) rotateY(0) scale(1);
    }
}
@keyframes page-in-right {
    from {
        opacity: 0;
        transform: translateX(32%) rotateY(-8deg) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateX(0) rotateY(0) scale(1);
    }
}

.badge-proctor-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding-right: 0.55rem;
    cursor: pointer;
}

.badge-proctor-label {
    font-size: 0.62rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    opacity: 0.75;
}

.badge-proctor-go {
    font-size: 0.78rem;
    font-weight: 800;
    line-height: 1;
    opacity: 0.9;
    margin-left: 0.05rem;
}

.badge-proctor-link:hover {
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.22);
    transform: translateY(-1px);
}

.badge-proctor-link:hover .badge-proctor-go {
    opacity: 1;
}

.q-jump {
    position: relative;
}

.btn-q-jump {
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--muted);
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.2rem 0.55rem;
}

.btn-q-jump:hover {
    border-color: var(--cyan);
    color: var(--cyan-strong);
}

.q-jump-panel {
    position: absolute;
    right: 0;
    top: calc(100% + 0.35rem);
    width: 11rem;
    padding: 0.7rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--card);
    box-shadow: var(--shadow-lg);
    z-index: 30;
}

.q-item.is-jump-flash {
    outline: 2px solid var(--cyan);
    outline-offset: 2px;
    border-radius: 10px;
    background: var(--cyan-soft);
}

.viva-sidebar {
    position: sticky;
    top: 5.5rem;
}

.sidebar-card-quiet {
    background: rgba(255, 255, 255, 0.55);
    box-shadow: none;
    border-color: var(--border-soft);
    padding: 0.85rem 0.9rem;
}

html[data-theme="dark"] .sidebar-card-quiet {
    background: rgba(20, 29, 47, 0.72);
}

.sidebar-card-quiet h6 {
    font-size: 0.78rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted);
    font-weight: 800;
}

.study-section-meta {
    font-size: 0.78rem;
    opacity: 0.85;
}

.answer-browser {
    margin-top: 0;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
    overflow: visible;
}

.answer-browser.q-panel {
    border: 1px solid var(--border);
    background: var(--card);
    box-shadow: var(--shadow-md);
    padding: 0.85rem;
}

.my-solution-panel.q-panel {
    margin-top: 0.35rem;
    padding: 0.85rem;
}

@media (max-width: 991.98px) {
    .viva-sidebar {
        position: static;
    }
}

@media (max-width: 640px) {
    .answer-book-nav {
        grid-template-columns: 1fr 1fr;
        grid-template-areas:
            "prev next"
            "center center";
    }
    .answer-book-btn[data-answer-prev] { grid-area: prev; justify-self: stretch; }
    .answer-book-btn-next { grid-area: next; justify-self: stretch; }
    .answer-book-center { grid-area: center; }
}

@media (prefers-reduced-motion: reduce) {
    .answer-card.is-page-out-left,
    .answer-card.is-page-out-right,
    .answer-card.is-page-in-left,
    .answer-card.is-page-in-right,
    .q-panel.is-entering {
        animation: none !important;
    }
}

/* ---- Final functional pass: reviews + top book nav ---- */
.answer-book-nav-top {
    margin-top: 0.35rem;
    margin-bottom: 0.65rem;
}

.answer-jump-menu {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: calc(100% + 0.35rem);
    width: min(18rem, 80vw);
    max-height: 14rem;
    overflow-y: auto;
    padding: 0.35rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--card);
    box-shadow: var(--shadow-lg);
    z-index: 40;
}

.answer-jump-option {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    width: 100%;
    border: 0;
    background: transparent;
    color: var(--ink);
    text-align: left;
    padding: 0.45rem 0.55rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.82rem;
}

.answer-jump-option:hover,
.answer-jump-option.is-current {
    background: var(--cyan-soft);
    color: var(--cyan-strong);
}

.answer-jump-num {
    min-width: 1.4rem;
    font-weight: 800;
    color: var(--muted);
}

.answer-jump-option.is-current .answer-jump-num {
    color: var(--cyan-strong);
}

.answer-jump-name {
    font-weight: 700;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.btn-share-experience {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    border: 1px solid rgba(6, 182, 212, 0.4);
    background: linear-gradient(135deg, rgba(125, 211, 252, 0.25), rgba(6, 182, 212, 0.12));
    color: var(--cyan-strong);
    font-weight: 800;
    font-size: 0.82rem;
    border-radius: 999px;
    padding: 0.45rem 0.95rem;
    text-decoration: none;
    transition: box-shadow 0.15s ease, transform 0.15s ease, border-color 0.15s ease;
}

.btn-share-experience:hover {
    color: var(--cyan-strong);
    border-color: var(--cyan);
    box-shadow: 0 0 0 3px var(--cyan-soft);
    transform: translateY(-1px);
}

.proctor-hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.55rem;
    margin-top: 0.65rem;
}

.proctor-review-card {
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--card);
    padding: 0.95rem 1rem;
    margin-bottom: 0.75rem;
    box-shadow: var(--shadow-sm);
}

.proctor-review-meta {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    align-items: baseline;
    margin-bottom: 0.45rem;
    flex-wrap: wrap;
}

.proctor-review-author {
    color: var(--ink-strong);
}

.proctor-review-subject {
    margin-left: 0.45rem;
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--accent);
    background: var(--accent-soft);
    border-radius: 999px;
    padding: 0.1rem 0.45rem;
}

.proctor-review-meta time {
    font-size: 0.75rem;
    color: var(--muted);
}

.proctor-review-body {
    color: var(--ink);
    font-size: 0.92rem;
    line-height: 1.55;
}

.proctor-review-questions {
    margin-top: 0.65rem;
    padding-top: 0.65rem;
    border-top: 1px dashed var(--border);
    font-size: 0.88rem;
}

.proctor-review-questions strong {
    display: block;
    margin-bottom: 0.25rem;
    color: var(--ink-strong);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.share-experience-form .is-locked-proctor {
    background: var(--surface);
    opacity: 0.92;
}

.badge-proctor-link .badge-proctor-go-icon {
    font-size: 0.7rem;
    opacity: 0.85;
}

.badge-proctor-link .badge-proctor-label {
    text-transform: none;
    letter-spacing: 0;
    font-size: 0.72rem;
    opacity: 1;
}

/* ---- Correction pass: CTAs, share form, who-are-we ---- */
.btn-see-reviews {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.48rem 0.95rem;
    border-radius: 999px;
    border: 1px solid rgba(239, 68, 68, 0.45);
    background: linear-gradient(135deg, #fecaca, #ef4444 48%, #b91c1c);
    color: #fff;
    font-weight: 800;
    font-size: 0.82rem;
    text-decoration: none;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.18), 0 8px 18px rgba(185, 28, 28, 0.28);
    transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

.btn-see-reviews:hover,
.btn-see-reviews:focus-visible {
    color: #fff;
    filter: brightness(1.06);
    transform: translateY(-1px);
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.28), 0 12px 24px rgba(185, 28, 28, 0.34);
}

.btn-see-reviews-code {
    font-size: 0.68rem;
    font-weight: 700;
    opacity: 0.88;
    max-width: 7.5rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.btn-cta-primary,
.btn-share-experience.btn-cta-primary {
    display: inline-flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.12rem;
    padding: 0.55rem 1.15rem 0.5rem;
    border-radius: 16px;
    border: 1px solid transparent;
    background: linear-gradient(135deg, #67e8f9, #0ea5e9 52%, #0369a1);
    color: #042f3a;
    font-weight: 800;
    font-size: 0.92rem;
    text-decoration: none;
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.2), 0 10px 24px rgba(6, 182, 212, 0.28);
    transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
    position: relative;
    overflow: hidden;
}

.btn-cta-primary::after,
.btn-share-experience.btn-cta-primary::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(110deg, transparent 35%, rgba(255, 255, 255, 0.35) 50%, transparent 65%);
    transform: translateX(-130%);
    transition: transform 0.45s ease;
    pointer-events: none;
}

.btn-cta-primary:hover,
.btn-share-experience.btn-cta-primary:hover {
    color: #042f3a;
    filter: brightness(1.04);
    transform: translateY(-1px);
}

.btn-cta-primary:hover::after,
.btn-share-experience.btn-cta-primary:hover::after {
    transform: translateX(130%);
}

.btn-share-main {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    position: relative;
    z-index: 1;
}

.btn-share-hint {
    font-size: 0.68rem;
    font-weight: 700;
    color: rgba(4, 47, 58, 0.72);
    position: relative;
    z-index: 1;
}

.proctor-hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    gap: 0.65rem;
    margin-top: 0.85rem;
}

.proctor-hero-actions .personality-trigger.btn-cta-secondary {
    min-height: 3.05rem;
    padding: 0.55rem 1.05rem;
    font-size: 0.9rem;
    font-weight: 800;
    border-radius: 16px;
    border: 1px solid rgba(14, 165, 233, 0.4);
    background: linear-gradient(135deg, rgba(125, 211, 252, 0.35), rgba(14, 165, 233, 0.12));
    color: var(--cyan-strong);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.14);
    position: relative;
    overflow: hidden;
    transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

.proctor-hero-actions .personality-trigger.btn-cta-secondary::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(110deg, transparent 35%, rgba(255, 255, 255, 0.4) 50%, transparent 65%);
    transform: translateX(-130%);
    transition: transform 0.45s ease;
    pointer-events: none;
}

.proctor-hero-actions .personality-trigger.btn-cta-secondary:hover {
    transform: translateY(-1px);
    box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.22);
    filter: brightness(1.03);
}

.proctor-hero-actions .personality-trigger.btn-cta-secondary:hover::after {
    transform: translateX(130%);
}

.share-section {
    position: relative;
    z-index: 1;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--card);
    padding: 1rem 1.1rem 1.15rem;
    box-shadow: var(--shadow-md);
}

.share-section-experience {
    border-color: rgba(6, 182, 212, 0.35);
    background:
        linear-gradient(180deg, rgba(6, 182, 212, 0.1), transparent 40%),
        var(--card);
    box-shadow: 0 0 0 3px var(--cyan-soft), var(--shadow-md);
}

.share-section-head {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    margin-bottom: 0.85rem;
}

.share-section-icon {
    width: 2.2rem;
    height: 2.2rem;
    border-radius: 12px;
    display: grid;
    place-items: center;
    background: var(--cyan-soft);
    color: var(--cyan-strong);
    flex-shrink: 0;
}

.share-section-icon-q {
    background: var(--spark-soft);
    color: #9a6b00;
}

.share-section-title {
    font-size: 1.05rem;
    font-weight: 800;
    margin: 0;
    color: var(--ink-strong);
}

.share-section-sub {
    font-size: 0.82rem;
    color: var(--muted);
    margin-top: 0.15rem;
}

.share-experience-textarea {
    min-height: 9rem;
}

.share-question-row {
    margin-bottom: 0.7rem;
}

.share-question-label {
    display: block;
    font-size: 0.78rem;
    font-weight: 800;
    color: var(--ink-strong);
    margin-bottom: 0.3rem;
}

.share-question-controls {
    display: flex;
    gap: 0.45rem;
    align-items: center;
}

.btn-share-q-remove {
    width: 2.35rem;
    height: 2.35rem;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: #b91c1c;
    display: grid;
    place-items: center;
    flex-shrink: 0;
}

.btn-add-question {
    border: 1px dashed rgba(6, 182, 212, 0.45);
    background: var(--cyan-soft);
    color: var(--cyan-strong);
    font-weight: 800;
    border-radius: 999px;
    padding: 0.4rem 0.9rem;
}

.study-stat-who {
    align-items: flex-start;
    text-align: left;
    min-width: 9rem;
}

.study-stat-kicker {
    display: block;
    font-size: 0.78rem;
    font-weight: 800;
    color: var(--cyan-strong);
    letter-spacing: 0.02em;
}

.study-stat-label-who {
    font-size: 0.72rem;
    line-height: 1.35;
    white-space: normal;
}

.who-are-we-card {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
    padding: 1.35rem 1.4rem;
    border-radius: 18px;
    border: 1px solid rgba(6, 182, 212, 0.28);
    background:
        linear-gradient(135deg, rgba(6, 182, 212, 0.12), rgba(14, 165, 233, 0.05)),
        var(--card);
    box-shadow: var(--shadow-md);
}

.who-are-we-title {
    font-size: 1.35rem;
    font-weight: 800;
    margin: 0 0 0.35rem;
    color: var(--ink-strong);
}

.who-are-we-text {
    color: var(--ink);
    max-width: 40rem;
    font-size: 0.95rem;
}

.who-are-we-flow {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: 0.75rem;
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--cyan-strong);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.who-are-we-cta-copy {
    margin: 0.55rem 0 0;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--muted);
}

.who-to-video {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
    margin-top: 0.85rem;
    color: #b91c1c;
}

.who-to-video-label {
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.who-to-video-arrow {
    font-size: 1rem;
    animation: who-bounce 1.8s ease-in-out infinite;
}

@keyframes who-bounce {
    0%, 100% { transform: translateY(0); opacity: 0.75; }
    50% { transform: translateY(4px); opacity: 1; }
}

.btn-bootcamp-shine {
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 1.35rem;
    border-radius: 999px;
    border: 0;
    background: linear-gradient(135deg, #7dd3fc, #0ea5e9 45%, #0369a1);
    color: #042f3a;
    font-weight: 800;
    font-size: 0.98rem;
    text-decoration: none;
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.22), 0 12px 28px rgba(14, 165, 233, 0.35);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn-bootcamp-shine::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.45) 50%, transparent 70%);
    transform: translateX(-120%);
    animation: bootcamp-shine 3.8s ease-in-out infinite;
    pointer-events: none;
}

.btn-bootcamp-shine:hover {
    color: #042f3a;
    transform: translateY(-2px);
    box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.28), 0 16px 32px rgba(14, 165, 233, 0.42);
}

@keyframes bootcamp-shine {
    0%, 55% { transform: translateX(-120%); }
    75%, 100% { transform: translateX(120%); }
}

.btn-video-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.75rem 1.15rem;
    border-radius: 999px;
    border: 1px solid rgba(220, 38, 38, 0.35);
    background: linear-gradient(135deg, #fecaca, #ef4444 55%, #b91c1c);
    color: #fff;
    font-weight: 800;
    text-decoration: none;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15), 0 10px 22px rgba(185, 28, 28, 0.25);
    transition: transform 0.15s ease, filter 0.15s ease;
}

.btn-video-cta:hover {
    color: #fff;
    filter: brightness(1.05);
    transform: translateY(-1px);
}

.answer-jump-option {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    grid-template-rows: auto auto;
    column-gap: 0.55rem;
    row-gap: 0.05rem;
    width: 100%;
    border: 0;
    background: transparent;
    color: var(--ink);
    text-align: left;
    padding: 0.5rem 0.55rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.82rem;
}

.answer-jump-num {
    grid-row: 1 / span 2;
    align-self: center;
}

.answer-jump-preview {
    grid-column: 2;
    font-size: 0.7rem;
    color: var(--muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

@media (max-width: 640px) {
    .proctor-hero-actions {
        flex-direction: column;
        align-items: stretch;
    }
    .proctor-hero-actions .btn-cta-primary,
    .proctor-hero-actions .personality-trigger {
        justify-content: center;
        width: 100%;
        align-items: center;
    }
    .btn-see-reviews {
        width: 100%;
        justify-content: space-between;
    }
    .who-are-we-card {
        flex-direction: column;
        align-items: stretch;
    }
    .btn-bootcamp-shine,
    .btn-video-cta {
        justify-content: center;
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .btn-bootcamp-shine::after,
    .who-to-video-arrow,
    .who-cta-arrow,
    .btn-learn-about {
        animation: none;
    }
}

/* ---- Final polish: gold share, dual CTAs, search, proctor picker ---- */
.btn-cta-primary,
.btn-share-experience.btn-cta-primary {
    background: linear-gradient(135deg, #ffe9a8, #f5c542 48%, #d4a017);
    color: #3d2a00;
    border: 1px solid rgba(212, 160, 23, 0.45);
    box-shadow: 0 0 0 3px rgba(245, 197, 66, 0.28), 0 10px 24px rgba(212, 160, 23, 0.28);
}

.btn-cta-primary:hover,
.btn-share-experience.btn-cta-primary:hover {
    color: #3d2a00;
    filter: brightness(1.05);
}

.btn-share-hint {
    color: rgba(61, 42, 0, 0.72);
}

.who-are-we-top .who-are-we-card {
    padding: 1.1rem 1.2rem;
    align-items: flex-start;
}

.who-are-we-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem 1.1rem;
    align-items: stretch;
}

.who-cta-block {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    min-width: min(100%, 14rem);
}

.who-cta-guide {
    margin: 0;
    font-size: 0.78rem;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    letter-spacing: 0.01em;
}

.who-cta-guide-blue {
    color: var(--cyan-strong);
}

.who-cta-guide-red {
    color: #b91c1c;
}

.who-cta-arrow {
    display: inline-block;
}

.who-cta-arrow-blue {
    animation: who-cta-nudge 1.6s ease-in-out infinite;
}

.who-cta-arrow-red {
    animation: who-cta-nudge 1.6s ease-in-out infinite 0.2s;
}

@keyframes who-cta-nudge {
    0%, 100% { transform: translateX(0); opacity: 0.75; }
    50% { transform: translateX(5px); opacity: 1; }
}

.btn-learn-about {
    animation: learn-glow 2.8s ease-in-out infinite;
}

@keyframes learn-glow {
    0%, 100% { box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15), 0 10px 22px rgba(185, 28, 28, 0.25); }
    50% { box-shadow: 0 0 0 5px rgba(239, 68, 68, 0.28), 0 12px 26px rgba(185, 28, 28, 0.34); }
}

.btn-bootcamp-shine {
    animation: bootcamp-pulse 3.2s ease-in-out infinite;
}

@keyframes bootcamp-pulse {
    0%, 100% { box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.22), 0 12px 28px rgba(14, 165, 233, 0.35); }
    50% { box-shadow: 0 0 0 5px rgba(14, 165, 233, 0.3), 0 14px 30px rgba(14, 165, 233, 0.42); }
}

.filter-input-wrap-search .form-control {
    font-weight: 600;
}

.question-search-card {
    padding: 1rem 1.1rem 1.05rem;
}

.question-search-title {
    font-size: 1.02rem;
    font-weight: 800;
    color: var(--ink-strong);
    margin: 0 0 0.55rem;
    line-height: 1.4;
}

.question-search-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem 0.55rem;
}

.question-search-proctor {
    font-size: 0.78rem;
    font-weight: 800;
    color: var(--cyan-strong);
    text-decoration: none;
}

.question-search-proctor:hover {
    text-decoration: underline;
}

.q-chip-empty {
    opacity: 0.72;
    cursor: default;
}

.share-meta-card.study-card {
    overflow: visible;
    z-index: 40;
}

.proctor-picker {
    position: relative;
    z-index: 20;
}

.proctor-picker-field {
    position: relative;
    z-index: 30;
}

.proctor-picker-dropdown {
    position: absolute;
    z-index: 1060;
    left: 0;
    right: 0;
    top: calc(100% + 0.3rem);
    max-height: 14rem;
    overflow: auto;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--card);
    box-shadow: var(--shadow-lg);
    padding: 0.35rem;
}

.proctor-picker-option {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
    border: 0;
    background: transparent;
    color: var(--ink);
    text-align: left;
    border-radius: 8px;
    padding: 0.55rem 0.65rem;
    cursor: pointer;
    font-size: 0.9rem;
}

.proctor-picker-option:hover,
.proctor-picker-option:focus-visible {
    background: var(--accent-soft);
    outline: none;
}

.proctor-picker-option.is-selected {
    background: linear-gradient(135deg, rgba(125, 211, 252, 0.28), rgba(14, 165, 233, 0.12));
    border: 1px solid rgba(6, 182, 212, 0.4);
    font-weight: 800;
}

.proctor-picker-code {
    font-weight: 800;
}

.proctor-picker-meta {
    font-size: 0.72rem;
    color: var(--muted);
    font-weight: 700;
}

.proctor-picker-empty {
    padding: 0.65rem;
    color: var(--muted);
    font-size: 0.85rem;
}

.proctor-picker-details {
    position: relative;
    z-index: 1;
    margin-top: 0.65rem;
    border: 1px solid rgba(6, 182, 212, 0.35);
    border-radius: 12px;
    background: linear-gradient(180deg, rgba(6, 182, 212, 0.1), transparent 55%), var(--card);
    padding: 0.75rem 0.85rem;
    box-shadow: 0 0 0 2px var(--cyan-soft);
}

.proctor-picker-details-head {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0.4rem 0.65rem;
    margin-bottom: 0.35rem;
}

.proctor-picker-details-label {
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted);
}

.proctor-picker-details-code {
    color: var(--cyan-strong);
    font-size: 1rem;
}

.proctor-picker-details-stat,
.proctor-picker-details-personality,
.proctor-picker-details-tips {
    font-size: 0.82rem;
    color: var(--ink);
}

.proctor-picker-details-tips-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--muted);
    margin-bottom: 0.15rem;
}

@media (max-width: 640px) {
    .who-are-we-ctas {
        width: 100%;
    }
    .who-cta-block {
        width: 100%;
    }
    .btn-nav-enroll {
        padding: 0.35rem 0.7rem;
        font-size: 0.78rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .btn-bootcamp-shine,
    .btn-learn-about,
    .who-cta-arrow-blue,
    .who-cta-arrow-red {
        animation: none;
    }
}

/* ---- Searchable proctor filter ---- */
.proctor-filter-native {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.proctor-filter-combo {
    position: relative;
}

.proctor-filter-list {
    position: absolute;
    z-index: 40;
    left: 0;
    right: 0;
    top: calc(100% + 0.25rem);
    max-height: 14rem;
    overflow: auto;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--card);
    box-shadow: var(--shadow-lg);
    padding: 0.35rem;
}

.proctor-filter-option {
    width: 100%;
    display: block;
    border: 0;
    background: transparent;
    color: var(--ink);
    text-align: left;
    border-radius: 8px;
    padding: 0.5rem 0.65rem;
    cursor: pointer;
    font-size: 0.88rem;
    font-weight: 700;
}

.proctor-filter-option:hover,
.proctor-filter-option.is-active {
    background: var(--accent-soft);
    color: var(--cyan-strong);
}

.proctor-filter-option.is-selected {
    background: linear-gradient(135deg, rgba(125, 211, 252, 0.28), rgba(14, 165, 233, 0.12));
    border: 1px solid rgba(6, 182, 212, 0.35);
}

.proctor-filter-empty {
    padding: 0.65rem;
    color: var(--muted);
    font-size: 0.85rem;
    font-weight: 700;
}

/* ---- Persistent Bootcamp CTA ---- */
.bootcamp-sticky-cta {
    position: fixed;
    z-index: 1040;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 0.65rem 0.85rem calc(0.65rem + env(safe-area-inset-bottom, 0px));
    pointer-events: none;
}

.bootcamp-sticky-inner {
    pointer-events: auto;
    max-width: 72rem;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 0.85rem 1rem;
    padding: 0.7rem 0.85rem 0.7rem 1rem;
    border-radius: 16px;
    border: 1px solid rgba(6, 182, 212, 0.35);
    background:
        linear-gradient(135deg, rgba(125, 211, 252, 0.22), rgba(245, 197, 66, 0.12) 55%, rgba(14, 165, 233, 0.1)),
        var(--card);
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.2) inset, 0 12px 32px rgba(15, 23, 42, 0.18);
    position: relative;
    overflow: hidden;
}

html[data-theme="dark"] .bootcamp-sticky-inner {
    border-color: rgba(91, 163, 240, 0.35);
    background:
        linear-gradient(135deg, rgba(6, 182, 212, 0.18), rgba(245, 197, 66, 0.1) 50%, rgba(21, 101, 192, 0.16)),
        var(--card-elevated);
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.04) inset, 0 16px 36px rgba(0, 0, 0, 0.45);
}

.bootcamp-sticky-inner::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.18) 50%, transparent 70%);
    transform: translateX(-120%);
    animation: bootcamp-sticky-shine 5s ease-in-out infinite;
    pointer-events: none;
}

@keyframes bootcamp-sticky-shine {
    0%, 60% { transform: translateX(-120%); }
    80%, 100% { transform: translateX(120%); }
}

.bootcamp-sticky-copy {
    flex: 1 1 auto;
    min-width: 0;
    position: relative;
    z-index: 1;
}

.bootcamp-sticky-kicker {
    margin: 0;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    color: var(--cyan-strong);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.bootcamp-sticky-spark {
    filter: drop-shadow(0 0 4px rgba(245, 197, 66, 0.55));
}

.bootcamp-sticky-text {
    margin: 0.15rem 0 0;
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.35;
}

.bootcamp-sticky-btn {
    position: relative;
    z-index: 1;
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.7rem 1.15rem;
    border-radius: 999px;
    border: 0;
    background: linear-gradient(135deg, #7dd3fc, #0ea5e9 45%, #0369a1);
    color: #042f3a;
    font-weight: 800;
    font-size: 0.92rem;
    text-decoration: none;
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.2), 0 8px 18px rgba(14, 165, 233, 0.3);
    transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

.bootcamp-sticky-btn:hover,
.bootcamp-sticky-btn:focus-visible {
    color: #042f3a;
    transform: translateY(-1px);
    filter: brightness(1.04);
    box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.28), 0 12px 24px rgba(14, 165, 233, 0.38);
    outline: none;
}

.bootcamp-sticky-close {
    position: relative;
    z-index: 1;
    flex: 0 0 auto;
    width: 2.1rem;
    height: 2.1rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--ink);
    font-size: 1.35rem;
    line-height: 1;
    display: grid;
    place-items: center;
    cursor: pointer;
    transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.bootcamp-sticky-close:hover,
.bootcamp-sticky-close:focus-visible {
    border-color: var(--cyan);
    color: var(--cyan-strong);
    outline: none;
    box-shadow: var(--focus-ring);
}

body.has-bootcamp-cta {
    padding-bottom: 6.5rem;
}

body.has-bootcamp-cta .site-footer {
    margin-bottom: 0.5rem;
}

@media (max-width: 720px) {
    .bootcamp-sticky-inner {
        display: grid;
        grid-template-columns: 1fr auto;
        grid-template-areas:
            "copy close"
            "btn btn";
        gap: 0.55rem 0.65rem;
        padding: 0.75rem;
    }
    .bootcamp-sticky-copy { grid-area: copy; }
    .bootcamp-sticky-close { grid-area: close; align-self: start; }
    .bootcamp-sticky-btn {
        grid-area: btn;
        justify-content: center;
        width: 100%;
    }
    .bootcamp-sticky-text {
        font-size: 0.8rem;
    }
    body.has-bootcamp-cta {
        padding-bottom: 8.5rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .bootcamp-sticky-inner::after {
        animation: none;
    }
    .bootcamp-sticky-btn:hover,
    .bootcamp-sticky-btn:focus-visible {
        transform: none;
    }
}

/* ---- Feedback FAB (report bug / suggest) ---- */
.feedback-fab {
    position: fixed;
    z-index: 1045;
    right: 1.1rem;
    bottom: 1.1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.7rem 1rem;
    border: 1px solid rgba(21, 101, 192, 0.22);
    border-radius: 999px;
    background: linear-gradient(135deg, #1565c0, #0d47a1);
    color: #fff;
    font-size: 0.88rem;
    font-weight: 700;
    line-height: 1;
    box-shadow: 0 10px 28px rgba(13, 71, 161, 0.35);
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

.feedback-fab:hover,
.feedback-fab:focus-visible {
    color: #fff;
    transform: translateY(-2px);
    filter: brightness(1.05);
    box-shadow: 0 14px 32px rgba(13, 71, 161, 0.42);
    outline: none;
}

.feedback-fab i {
    font-size: 1.05rem;
}

html[data-theme="dark"] .feedback-fab {
    border-color: rgba(91, 163, 240, 0.35);
    background: linear-gradient(135deg, #1e88e5, #1565c0);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.45);
}

body.has-bootcamp-cta .feedback-fab {
    bottom: 5.5rem;
}

.feedback-modal-content {
    border: 1px solid var(--border, rgba(0, 0, 0, 0.08));
    border-radius: 1rem;
    overflow: hidden;
}

@media (max-width: 576px) {
    .feedback-fab {
        right: 0.85rem;
        bottom: 0.85rem;
        padding: 0.75rem 0.9rem;
    }
    .feedback-fab-label {
        display: none;
    }
    body.has-bootcamp-cta .feedback-fab {
        bottom: 7.25rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .feedback-fab:hover,
    .feedback-fab:focus-visible {
        transform: none;
    }
}