/* ===== Reset & Variables ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --primary: #4F70F2;
    --primary-light: #8497EF;
    --primary-soft: #5E7CF4;
    --bg: #F1F5F9;
    --bg-white: #FFFFFF;
    --bg-soft: #F5F9FF;
    --bg-cool: #EEF5FF;
    --text-1: #1E293B;
    --text-2: #64748B;
    --text-3: #94A3B8;
    --border: rgba(0,0,0,0.06);
    --border-strong: rgba(0,0,0,0.10);
    --shadow-card: 0 20px 60px rgba(15,23,42,0.06);
    --shadow-sm: 0 2px 8px rgba(15,23,42,0.04);
    --shadow-btn: 0 10px 30px rgba(79,112,242,0.12);
    --shadow-hover: 0 16px 40px rgba(15,23,42,0.10);
    --radius-card: 28px;
    --radius-btn: 18px;
    --radius-sm: 12px;
    --radius-chip: 100px;
    --ours-bg: #EFF3FE;
    --ours-border: #4F70F2;
    --best-color: #E11D48;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text-1);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

section { scroll-margin-top: 88px; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Page Content Card ===== */
.page-content-card {
    margin: 0 2%;
    background: var(--bg-white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border);
    padding: 56px 0;
}

.page-content-card > .main-demo,
.page-content-card > .abstract,
.page-content-card > .method-section,
.page-content-card > .results-section,
.page-content-card > .comparison-section,
.page-content-card > .citation,
.page-content-card > .acknowledgment {
    padding-top: 48px;
}

.page-content-card > .main-demo:first-child {
    padding-top: 0;
}

/* ===== Floating Glass Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 56px;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    box-shadow: 0 4px 16px rgba(15,23,42,0.06);
    z-index: 999;
    transition: all 0.25s ease-out;
}

.navbar.scrolled {
    background: rgba(255,255,255,0.92);
    box-shadow: 0 4px 20px rgba(15,23,42,0.08);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.nav-logo h2 {
    font-size: 1.15rem;
    font-weight: 700;
    color: #000000;
    letter-spacing: -0.3px;
}

.nav-links {
    display: flex;
    gap: 6px;
    align-items: center;
}

.nav-links a {
    color: #000000;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.88rem;
    padding: 6px 14px;
    border-radius: 0;
    position: relative;
    transition: color 0.25s ease-out;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 14px;
    right: 14px;
    height: 2px;
    background: var(--primary);
    border-radius: 1px;
    transform: scaleX(0);
    transition: transform 0.25s ease-out;
}

.nav-links a.active::after {
    transform: scaleX(1);
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-links a.active {
    color: var(--primary);
}

.nav-links .nav-github {
    background: var(--bg-white);
    border-radius: 100px;
    padding: 6px 16px;
    font-size: 0.88rem;
    gap: 6px;
    display: inline-flex;
    align-items: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    color: #000000;
    transition: all 0.25s ease-out;
}

.nav-links .nav-github::after { display: none; }

.nav-links .nav-github:hover {
    background: var(--bg-soft);
    color: var(--primary);
}

/* ===== Hero / Banner ===== */
.banner {
    background: linear-gradient(180deg, rgba(255,255,255,0.55) 0%, rgba(230,240,255,0.60) 45%, rgba(220,235,255,0.65) 100%),
                url('assets/imgs/bg.png') center center / cover no-repeat;
    padding: 100px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.banner::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at 30% 20%, rgba(79,112,242,0.04) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 60%, rgba(132,151,239,0.03) 0%, transparent 50%);
    pointer-events: none;
}

.banner-content { position: relative; z-index: 1; }

.banner-title {
    font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 800;
    letter-spacing: -2px;
    color: var(--text-1);
    margin-bottom: 16px;
    line-height: 1.05;
}

.banner-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    font-weight: 500;
    color: var(--text-2);
    margin-bottom: 28px;
    line-height: 1.5;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.conference-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, #3B5FCC 0%, #4568D4 40%, #4F70F2 100%);
    color: white;
    font-size: 0.95rem;
    font-weight: 700;
    padding: 8px 24px;
    border-radius: 100px;
    margin-bottom: 36px;
    letter-spacing: 0.5px;
    box-shadow: 0 8px 24px rgba(59,95,204,0.30);
}

.authors {
    font-size: 1.05rem;
    margin-bottom: 16px;
    color: var(--text-1);
    line-height: 2.4;
    word-spacing: normal;
}

.authors a {
    color: var(--text-1);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.25s ease-out;
}

.authors a:hover { color: var(--primary); }

.authors .author-item {
    margin-right: 1.2em;
}

.authors sup {
    margin: 0;
    padding: 0;
    display: inline;
}

.affiliations {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px 2em;
    margin: 4px 0;
}

.affiliations span {
    display: inline-flex;
    align-items: center;
    color: var(--text-2);
    font-size: 0.88rem;
    font-weight: 400;
    white-space: nowrap;
}

.affiliations span sup {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    background: rgba(79,112,242,0.10);
    color: var(--primary);
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 50%;
    margin-right: 4px;
}

.footnote {
    font-size: 0.82rem;
    color: var(--text-3);
    display: block;
    margin-top: 8px;
}

.banner-links {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 32px;
}

.link-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-white);
    color: var(--text-1);
    text-decoration: none;
    padding: 12px 24px;
    border-radius: var(--radius-btn);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.25s ease-out;
    box-shadow: var(--shadow-btn);
    border: 1px solid var(--border);
}

.link-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 36px rgba(79,112,242,0.18);
    background: var(--bg-white);
}

.link-btn i { color: var(--primary); }

/* ===== Section Card ===== */
.section-card {
    background: var(--bg-white);
    border-radius: var(--radius-card);
    padding: 48px;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border);
    margin-bottom: 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.8px;
    color: var(--text-1);
    text-align: center;
    margin-bottom: 40px;
}

/* ===== TL;DR ===== */
.main-demo {
    padding: 0;
    background: transparent;
}

.tldr-content {
    background: var(--bg-soft);
    padding: 28px 36px;
    border-radius: 20px;
    border: 1px solid var(--border);
    display: flex;
    align-items: flex-start;
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto 40px;
}

.tldr-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(79,112,242,0.1), rgba(132,151,239,0.15));
    display: flex;
    align-items: center;
    justify-content: center;
}

.tldr-icon i { font-size: 1.2rem; color: var(--primary); }

.tldr-text p {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-2);
    margin: 0;
}

.tldr-text strong { color: var(--text-1); font-weight: 600; }

.teaser-container {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.teaser-image {
    width: 100%;
    max-width: 700px;
    height: auto;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
}

/* ===== Abstract ===== */
.abstract { padding: 0; background: transparent; }

.abstract-content {
    background: var(--bg-soft);
    padding: 40px 44px;
    border-radius: 20px;
    border: 1px solid var(--border);
    max-width: 1000px;
    margin: 0 auto;
}

.abstract-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 18px;
    color: var(--text-1);
    display: flex;
    align-items: center;
    gap: 10px;
}

.abstract-content h3 i { color: var(--primary); font-size: 1.1rem; }

.abstract-content p {
    font-size: 1.02rem;
    line-height: 1.85;
    color: var(--text-2);
}

/* ===== Method ===== */
.method-section { padding: 0; background: transparent; }

.method-block { max-width: 1000px; margin: 0 auto 40px; text-align: center; }

.method-image {
    width: 100%;
    max-width: 960px;
    height: auto;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
}

.figure-caption, .table-caption {
    font-size: 0.88rem;
    color: var(--text-3);
    text-align: center;
    margin-top: 14px;
    line-height: 1.55;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Contribution Cards */
.contributions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto 40px;
}

.contribution-card {
    background: var(--bg-soft);
    border-radius: 20px;
    padding: 32px 24px;
    border: 1px solid var(--border);
    transition: all 0.25s ease-out;
}

.contribution-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.contribution-icon {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(79,112,242,0.08), rgba(132,151,239,0.12));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.contribution-icon i { font-size: 1.15rem; color: var(--primary); }

.contribution-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-1);
}

.contribution-card p {
    font-size: 0.9rem;
    line-height: 1.65;
    color: var(--text-2);
}

/* Method Details */
.method-details { max-width: 1000px; margin: 0 auto; }

.detail-row {
    background: var(--bg-soft);
    padding: 24px 28px;
    border-radius: 16px;
    border: 1px solid var(--border);
    margin-bottom: 12px;
    transition: all 0.25s ease-out;
}

.detail-row:hover { box-shadow: var(--shadow-hover); }

.detail-text h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-1);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.detail-text h3 i { font-size: 0.9rem; color: var(--primary); }

.detail-text p { font-size: 0.92rem; line-height: 1.7; color: var(--text-2); }

/* ===== Results ===== */
.results-section { padding: 0; background: transparent; }

.result-block { max-width: 1000px; margin: 0 auto 40px; }

.result-subtitle {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-1);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.result-subtitle i { color: var(--primary); font-size: 1.1rem; }

/* Tables */
.table-wrapper {
    overflow-x: auto;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}

.result-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.86rem;
    background: var(--bg-white);
}

.result-table thead th {
    background: var(--bg);
    color: var(--text-2);
    padding: 12px 10px;
    text-align: center;
    font-weight: 600;
    font-size: 0.78rem;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    white-space: nowrap;
    border-bottom: 1px solid var(--border-strong);
}

.result-table tbody td {
    padding: 10px 10px;
    text-align: center;
    border-bottom: 1px solid var(--border);
    color: var(--text-2);
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}

.result-table tbody td:first-child {
    text-align: left;
    font-weight: 500;
    color: var(--text-1);
    min-width: 150px;
}

.result-table .group-header td {
    background: rgba(79,112,242,0.03);
    font-weight: 700;
    color: var(--primary);
    text-align: left;
    padding: 8px 14px;
    font-size: 0.78rem;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border);
}

.result-table .ours { background: var(--ours-bg); }
.result-table .ours td:first-child { color: var(--primary); }
.result-table .ours.highlight { background: rgba(79,112,242,0.08); }
.result-table .best { color: var(--text-1); font-weight: 800; }
.result-table tbody tr:hover { background: rgba(79,112,242,0.02); }
.result-table tbody tr.ours:hover { background: rgba(79,112,242,0.06); }

.speed-table { font-size: 0.9rem; }
.speed-table tbody td:first-child { min-width: 130px; }

.foundation-table tbody td:nth-child(2) {
    font-size: 0.78rem;
    font-style: italic;
    color: var(--text-3);
}

/* Qualitative */
.qualitative-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.qualitative-item img {
    width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.25s ease-out;
}

.qualitative-item img:hover { transform: scale(1.01); }

/* ===== Clickable Images ===== */
.clickable-img {
    cursor: zoom-in;
}

.method-image.clickable-img:hover {
    transform: scale(1.005);
}

.teaser-image.clickable-img:hover {
    transform: scale(1.005);
}

/* ===== Image Lightbox ===== */
.img-lightbox {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 1001;
    background: rgba(15,23,42,0.90);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    align-items: center;
    justify-content: center;
    padding: 40px;
    cursor: zoom-out;
}

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

.img-lightbox img {
    max-width: 95%;
    max-height: 95vh;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

/* ===== Section Intro ===== */
.section-intro {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-2);
    text-align: center;
    max-width: 700px;
    margin: 0 auto 28px;
}

/* ===== Zoom Comparison Viewer ===== */
.zoom-viewer { max-width: 1000px; margin: 0 auto; }

.scene-selector {
    display: flex;
    gap: 10px;
    margin-bottom: 24px;
    justify-content: center;
    flex-wrap: wrap;
}

.scene-btn {
    background: var(--bg-white);
    border: 1px solid var(--border-strong);
    border-radius: 14px;
    padding: 10px 18px;
    cursor: pointer;
    font-family: var(--font);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-1);
    transition: all 0.25s ease-out;
    text-align: center;
    line-height: 1.4;
}

.scene-btn small { font-weight: 400; color: var(--text-3); font-size: 0.76rem; }

.scene-btn:hover {
    border-color: var(--primary);
    background: rgba(79,112,242,0.04);
}

.scene-btn.active {
    border-color: var(--primary);
    background: var(--primary);
    color: white;
    box-shadow: 0 6px 20px rgba(79,112,242,0.25);
}

.scene-btn.active small { color: rgba(255,255,255,0.8); }

.zoom-main {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.zoom-original {
    position: relative;
    width: 32%;
    flex-shrink: 0;
    cursor: pointer;
}

.zoom-original img {
    width: 100%;
    height: auto;
    border-radius: 14px;
    box-shadow: var(--shadow-sm);
    display: block;
}

.zoom-rect {
    position: absolute;
    border: 2px solid #EF4444;
    background: rgba(239,68,68,0.08);
    pointer-events: none;
    transition: all 0.35s ease-out;
    border-radius: 2px;
}

/* Zoom overlay */
.zoom-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 1000;
    background: rgba(15,23,42,0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 40px;
    cursor: pointer;
}

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

.zoom-overlay-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 100%;
    max-height: 100%;
    overflow-y: auto;
    padding: 20px;
}

.zoom-overlay-title {
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
    text-align: center;
}

.zoom-overlay-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    max-width: 1400px;
    width: 100%;
}

.zoom-overlay-item {
    position: relative;
    background: rgba(255,255,255,0.05);
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.1);
}

.zoom-overlay-item .overlay-zoom-rect {
    position: absolute;
    border: 2px solid #EF4444;
    background: rgba(239,68,68,0.08);
    pointer-events: none;
    border-radius: 2px;
    transition: opacity 0.3s ease;
}

.zoom-overlay-item .overlay-zoom-rect.hidden {
    opacity: 0;
}

.zoom-overlay-item.ours-overlay {
    border: 2px solid var(--primary);
    background: rgba(79,112,242,0.08);
}

.zoom-overlay-label {
    padding: 8px 12px;
    font-size: 0.78rem;
    font-weight: 600;
    color: rgba(255,255,255,0.7);
    text-align: center;
    background: rgba(0,0,0,0.2);
}

.zoom-overlay-item.ours-overlay .zoom-overlay-label {
    color: var(--primary-light);
}

.zoom-overlay-item img {
    width: 100%;
    height: auto;
    display: block;
}

.zoom-overlay-hint {
    color: rgba(255,255,255,0.4);
    font-size: 0.82rem;
    margin-top: 20px;
    text-align: center;
}

.zoom-overlay-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 16px;
}

.zoom-overlay-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: rgba(255,255,255,0.8);
    font-family: var(--font);
    font-size: 0.85rem;
    font-weight: 500;
    padding: 8px 18px;
    border-radius: 100px;
    cursor: pointer;
    transition: all 0.25s ease-out;
}

.zoom-overlay-toggle:hover {
    background: rgba(255,255,255,0.18);
    border-color: rgba(255,255,255,0.35);
}

.zoom-overlay-toggle.active {
    background: rgba(239,68,68,0.2);
    border-color: #EF4444;
    color: #FCA5A5;
}

.zoom-overlay-toggle i {
    font-size: 0.9rem;
}

.zoom-comparisons {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.zoom-comp-item {
    background: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all 0.25s ease-out;
    cursor: pointer;
}

.zoom-comp-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.zoom-comp-item.ours-comp {
    border: 2px solid var(--primary);
    background: var(--ours-bg);
}

.zoom-comp-label {
    padding: 6px 8px;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-3);
    text-align: center;
    background: var(--bg);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.zoom-comp-item.ours-comp .zoom-comp-label {
    color: var(--primary);
    background: rgba(79,112,242,0.08);
}

.zoom-comp-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    background: #0a0a0a;
}

/* ===== Comparison Videos ===== */
.comparison-section { padding: 0; background: transparent; }

.comparison-carousel { position: relative; }

.carousel-container {
    display: flex;
    align-items: center;
    gap: 16px;
}

.carousel-btn {
    background: var(--bg-white);
    border: 1px solid var(--border-strong);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    color: var(--text-1);
    font-size: 15px;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all 0.25s ease-out;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-btn:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    box-shadow: var(--shadow-btn);
}

.carousel-content {
    flex: 1;
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    background: var(--bg-soft);
    border: 1px solid var(--border);
}

.comparison-slide { display: none; padding: 32px; }
.comparison-slide.active { display: block; }

.video-wrapper {
    position: relative;
    padding-bottom: 40%;
    height: 0;
    overflow: hidden;
    border-radius: 16px;
    background: #0a0a0a;
    margin-bottom: 20px;
}

.video-wrapper video {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: contain;
}

.video-fullscreen-btn {
    position: absolute;
    bottom: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    background: rgba(0,0,0,0.5);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    color: white;
    font-size: 0.85rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease-out;
    z-index: 5;
    backdrop-filter: blur(4px);
}

.video-fullscreen-btn:hover {
    background: rgba(0,0,0,0.7);
    transform: scale(1.1);
}

.comparison-info h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-1);
}

.comparison-info p { font-size: 0.95rem; color: var(--text-2); line-height: 1.6; }

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
}

.indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-strong);
    cursor: pointer;
    transition: all 0.25s ease-out;
}

.indicator.active {
    background: var(--primary);
    transform: scale(1.3);
    box-shadow: 0 0 0 3px rgba(79,112,242,0.2);
}

/* ===== Citation ===== */
.citation { padding: 0; background: transparent; }

.citation-box {
    background: var(--bg-soft);
    padding: 36px;
    border-radius: 20px;
    border: 1px solid var(--border);
    max-width: 800px;
    margin: 0 auto;
}

.citation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.citation-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.copy-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-white);
    border: 1px solid var(--border-strong);
    border-radius: 100px;
    padding: 6px 16px;
    font-family: var(--font);
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-2);
    cursor: pointer;
    transition: all 0.25s ease-out;
}

.copy-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: rgba(79,112,242,0.04);
}

.copy-btn.copied {
    color: #16A34A;
    border-color: #16A34A;
    background: rgba(22,163,74,0.06);
}

.citation-box pre {
    background: var(--bg);
    padding: 24px;
    border-radius: 16px;
    overflow-x: auto;
    font-family: 'Monaco', 'Menlo', 'JetBrains Mono', 'Ubuntu Mono', monospace;
    font-size: 0.86rem;
    line-height: 1.6;
    color: var(--text-1);
    border: 1px solid var(--border);
    margin: 0;
}

/* ===== Acknowledgment ===== */
.acknowledgment { padding: 0; background: transparent; }

.acknowledgment-content {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-soft);
    padding: 32px 36px;
    border-radius: 20px;
    border: 1px solid var(--border);
}

.acknowledgment-content h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-1);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.acknowledgment-content h3 i { color: var(--primary); }

.acknowledgment-content p { font-size: 0.92rem; color: var(--text-2); line-height: 1.7; }

/* ===== Footer ===== */
.footer {
    background: var(--bg-white);
    padding: 32px 0;
    text-align: center;
    color: var(--text-3);
    font-size: 0.85rem;
    border-top: 1px solid var(--border);
    margin-top: 56px;
}

/* ===== Scroll Animations ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .container { padding: 0 16px; }

    .navbar {
        background: rgba(255,255,255,0.92);
        backdrop-filter: blur(16px) saturate(180%);
        -webkit-backdrop-filter: blur(16px) saturate(180%);
    }

    .nav-logo h2 { color: #000000; }

    .nav-links { display: none; }

    .banner { padding: 120px 0 60px; }

    .banner-title { font-size: 2.8rem; letter-spacing: -1px; }
    .banner-subtitle { font-size: 1.05rem; }

    .section-card { padding: 28px 20px; border-radius: 20px; }

    .contributions-grid { grid-template-columns: 1fr; gap: 12px; }
    .qualitative-grid { grid-template-columns: 1fr; gap: 12px; }

    .zoom-main { flex-direction: column; }
    .zoom-original { width: 100%; }
    .zoom-comparisons { grid-template-columns: repeat(2, 1fr); }

    .zoom-overlay-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; max-width: 900px; }

    .scene-selector { gap: 6px; }
    .scene-btn { padding: 8px 12px; font-size: 0.82rem; }

    .carousel-container { flex-direction: column; position: relative; }
    .carousel-btn {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        z-index: 5;
        width: 36px;
        height: 36px;
        font-size: 13px;
    }
    .prev-btn { left: 8px; }
    .next-btn { right: 8px; }
    .video-wrapper { padding-bottom: 56.25%; }

    .result-table { font-size: 0.72rem; }
    .result-table thead th { padding: 8px 5px; font-size: 0.68rem; }
    .result-table tbody td { padding: 7px 5px; }

    .section-title { font-size: 1.6rem; margin-bottom: 28px; }

    .tldr-content { flex-direction: column; padding: 24px; }
    .abstract-content { padding: 24px; }

    .affiliations { gap: 6px 12px; }
    .affiliations span { font-size: 0.82rem; }
    .affiliations span sup { width: 16px; height: 16px; font-size: 0.65rem; }

    .page-content-card { margin: 0 1%; padding: 36px 0; border-radius: 20px; }
}

@media (max-width: 480px) {
    .banner-title { font-size: 2.2rem; }
    .banner-subtitle { font-size: 0.92rem; }
    .banner-links { flex-direction: column; align-items: center; gap: 10px; }
    .link-btn { width: 100%; justify-content: center; }
    .zoom-comparisons { grid-template-columns: 1fr; }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 6px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.12); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0,0,0,0.2); }