:root {
    --bg: #f7e5e8;
    --surface: #fff4f4;
    --surface-strong: #ffffff;
    --surface-accent: #f9d7de;
    --text: #22070c;
    --muted: #5f1e2a;
    --primary: #c41e3a;
    --primary-strong: #8b0000;
    --primary-soft: #e56a7d;
    --border: #8b0000;
    --shadow: #5a0c17;
}

body[data-theme="dark"] {
    --bg: #160407;
    --surface: #28070d;
    --surface-strong: #390a12;
    --surface-accent: #52111d;
    --text: #fff1f3;
    --muted: #f2b9c3;
    --primary: #ff4d64;
    --primary-strong: #c41e3a;
    --primary-soft: #ff8191;
    --border: #ff4d64;
    --shadow: #050102;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    font-family: 'Space Mono', 'Courier New', Courier, monospace;
    color: var(--text);
    margin: 0;
    line-height: 1.6;
}

a,
button,
input,
select,
textarea {
    font: inherit;
}

a {
    color: inherit;
}

img {
    display: block;
    max-width: 100%;
}

button,
input,
select,
textarea {
    border: 2px solid var(--border);
    border-radius: 14px;
    background: var(--surface-strong);
    color: var(--text);
    padding: 0.85rem 1rem;
}

button {
    cursor: pointer;
}

textarea {
    resize: vertical;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--primary-strong);
    border-bottom: 4px solid var(--primary);
}

.brand-block {
    display: flex;
    flex-direction: column;
}

.brand-kicker {
    color: #ffd7de;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.2rem;
}

.brand-link {
    color: #ffffff;
    font-size: 1.3rem;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: 0.12rem;
}

.nav-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    justify-content: flex-end;
}

.hyq,
.action-button,
.primary-link,
.secondary-link,
.button-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 3rem;
    padding: 0.8rem 1.1rem;
    text-transform: uppercase;
    text-decoration: none;
    font-weight: 700;
    letter-spacing: 0.05rem;
}

.hyq,
.secondary-link {
    background: #fff4f4;
    color: #5f1e2a;
}

.action-button,
.primary-link,
.button-link {
    background: var(--primary);
    color: #ffffff;
}

.action-button:hover,
.primary-link:hover,
.button-link:hover,
.hyq:hover,
.secondary-link:hover {
    transform: translateY(-2px);
}

.page-shell,
.voice-container,
.dino-gallery {
    width: min(1200px, calc(100% - 2rem));
    margin: 0 auto;
}

.page-shell {
    display: grid;
    gap: 1.5rem;
    padding: 1.5rem 0 3rem;
}

.panel,
.card,
.voice-card {
    background: var(--surface);
    border: 3px solid var(--border);
    border-radius: 24px;
    box-shadow: 0 18px 30px var(--shadow);
}

.panel,
.card {
    padding: 1.5rem;
}

.hero {
    width: min(1200px, calc(100% - 2rem));
    margin: 1.5rem auto 0;
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr);
    gap: 1.5rem;
}

.hero-copy,
.hero-metrics {
    display: grid;
    gap: 1rem;
}

.hero-text {
    font-size: 1.05rem;
    max-width: 60ch;
}

.hero-actions,
.button-row,
.chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.hero-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.metric-card {
    background: var(--surface-strong);
    border: 2px solid var(--border);
    border-radius: 18px;
    padding: 1rem;
    display: grid;
    gap: 0.35rem;
}

.metric-label,
.eyebrow,
.status-text {
    color: var(--muted);
}

.metric-value {
    font-size: 1.75rem;
}

.eyebrow {
    margin: 0;
    font-size: 0.8rem;
    letter-spacing: 0.18rem;
    text-transform: uppercase;
    font-weight: 700;
}

.raja,
.mla {
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.15rem;
    font-size: clamp(2.2rem, 5vw, 4rem);
}

.section-heading {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.section-title {
    margin: 0;
    font-size: clamp(1.6rem, 3vw, 2.4rem);
}

.status-pill,
.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    border: 2px solid var(--border);
    background: var(--surface-strong);
    font-weight: 700;
}

.filters,
.comparison-controls,
.inline-fields,
.stats-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.filters label,
.comparison-controls label,
.stack-form label {
    display: grid;
    gap: 0.45rem;
}

.timeline-shell,
.quiz-card,
.comparison-output,
.favorites-list,
.comment-list,
.viewer-canvas,
.stats-cards,
.voice-card {
    margin-top: 1rem;
}

.timeline-shell {
    display: grid;
    gap: 0.9rem;
}

.slider-label,
.subheading {
    font-weight: 700;
}

#timelineRange,
#speedFilter {
    width: 100%;
    accent-color: var(--primary);
    padding: 0;
}

.dino-grid {
    margin-top: 1.2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.dino-card {
    display: grid;
    gap: 0.8rem;
    padding: 1.1rem;
    background: var(--surface-strong);
    border: 2px solid var(--border);
    border-radius: 20px;
}

.dino-card header,
.entry-copy,
.entry-actions,
.comment-item {
    display: grid;
    gap: 0.65rem;
}

.dino-card h3,
.quiz-question,
.subheading {
    margin: 0;
}

.pill-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.pill {
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    background: var(--surface-accent);
    border: 2px solid var(--border);
    font-size: 0.85rem;
    font-weight: 700;
}

.dino-card img,
.entry-image,
.gallery-pic {
    border-radius: 18px;
    border: 2px solid var(--border);
    background: #ffffff;
}

.dino-card img {
    width: 100%;
    height: 180px;
    object-fit: contain;
    padding: 1rem;
}

.entry-layout {
    display: grid;
    grid-template-columns: minmax(180px, 220px) minmax(0, 1fr);
    gap: 1.2rem;
    align-items: start;
}

.entry-media {
    display: grid;
    gap: 0.8rem;
}

.entry-image {
    width: 100%;
    cursor: pointer;
    padding: 0.75rem;
}

.hyp3 {
    color: var(--primary-strong);
    font-weight: 700;
    text-decoration-thickness: 2px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 0.5rem;
}

.comparison-table th,
.comparison-table td {
    border: 2px solid var(--border);
    padding: 0.75rem;
    text-align: left;
    background: var(--surface-strong);
}

.quiz-options {
    display: grid;
    gap: 0.75rem;
    margin: 1rem 0;
}

.quiz-option {
    width: 100%;
    justify-content: flex-start;
}

.viewer-canvas {
    min-height: 280px;
    border: 2px solid var(--border);
    border-radius: 20px;
    background: #2a0b10;
    overflow: hidden;
}

.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 0.75rem;
}

.stat-card {
    background: var(--surface-strong);
    border: 2px solid var(--border);
    border-radius: 16px;
    padding: 0.9rem;
}

.stat-bars {
    display: grid;
    gap: 0.75rem;
}

.bar-row {
    display: grid;
    gap: 0.35rem;
}

.bar-track {
    width: 100%;
    min-height: 1rem;
    background: var(--surface-accent);
    border: 2px solid var(--border);
    border-radius: 999px;
    overflow: hidden;
}

.bar-fill {
    min-height: 0.75rem;
    background: var(--primary);
}

.favorites-list,
.comment-list {
    display: grid;
    gap: 0.85rem;
}

.favorite-item,
.comment-item {
    background: var(--surface-strong);
    border: 2px solid var(--border);
    border-radius: 18px;
    padding: 1rem;
}

.stack-form {
    display: grid;
    gap: 1rem;
}

.voice-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
    padding: 1.5rem 0 3rem;
}

.voice-card {
    padding: 1.25rem;
    text-align: center;
}

.mic {
    width: 100%;
    accent-color: var(--primary);
}

.dino-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
    padding: 1.5rem 0 3rem;
}

.gallery-pic {
    width: 100%;
    height: 250px;
    object-fit: cover;
    cursor: pointer;
}

.site-footer {
    width: min(1200px, calc(100% - 2rem));
    margin: 0 auto 2rem;
    padding: 1rem 1.25rem;
    background: var(--primary-strong);
    color: #ffffff;
    border-radius: 20px;
    border: 3px solid var(--primary);
}

.fade-in {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.lightbox-overlay {
    position: fixed;
    inset: 0;
    display: none;
    justify-content: center;
    align-items: center;
    background: #0d0103;
    z-index: 2500;
    padding: 1.5rem;
}

.lightbox-overlay.active {
    display: flex;
}

.lightbox-overlay img {
    max-width: min(90vw, 900px);
    max-height: 85vh;
    border-radius: 18px;
    border: 3px solid #ffffff;
}

.hidden {
    display: none !important;
}

@media (max-width: 900px) {
    .hero,
    .feature-grid {
        grid-template-columns: 1fr;
    }

    .entry-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .topbar,
    .section-heading {
        flex-direction: column;
    }

    .hero-metrics {
        grid-template-columns: 1fr;
    }

    .page-shell,
    .voice-container,
    .dino-gallery,
    .hero,
    .site-footer {
        width: min(100%, calc(100% - 1rem));
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
    }
}

@media print {
    .topbar,
    .hero-actions,
    .filters,
    .button-row,
    #quizRestart,
    #themeToggle,
    #authForm,
    #commentForm {
        display: none !important;
    }

    body {
        background: #ffffff;
        color: #000000;
    }

    .panel,
    .card,
    .voice-card {
        box-shadow: none;
    }
}