:root {
    --primary-color: #1a1a1a;
    --accent-color: #76b900; /* NVIDIA green */
    --accent-dark: #5e9400;
    --accent-soft: #eef6e0;
    --text-color: #2b2b2b;
    --bg-color: #ffffff;
    --light-gray: #f5f6f4;
    --border-color: #e2e4e0;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    color: var(--text-color);
    background-color: var(--bg-color);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

.container {
    max-width: 1040px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    text-align: center;
    padding: 64px 0 44px;
    border-top: 6px solid var(--accent-color);
    background: linear-gradient(180deg, var(--accent-soft) 0%, var(--bg-color) 70%);
}

h1 {
    font-family: var(--font-heading);
    font-size: 2.4rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.18;
    margin-bottom: 14px;
    color: var(--primary-color);
}

h1 .accent {
    color: var(--accent-dark);
}

.venue {
    font-size: 1.15rem;
    color: var(--accent-dark);
    margin-bottom: 20px;
    font-weight: 700;
    letter-spacing: 0.01em;
}

h2 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-top: 40px;
    margin-bottom: 24px;
    padding-bottom: 14px;
    color: var(--accent-dark);
    text-align: center;
}

h2::after {
    content: '';
    display: block;
    width: 64px;
    height: 3px;
    background-color: var(--accent-color);
    margin: 14px auto 0;
}

.authors {
    font-size: 1.05rem;
    margin-bottom: 10px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.author {
    display: inline-block;
    margin: 0 8px;
    color: var(--accent-dark);
    font-weight: 600;
}

.affiliations {
    font-size: 0.95rem;
    color: #666;
    margin-bottom: 26px;
}

.affiliation {
    display: inline-block;
    margin: 0 10px;
}

.note {
    display: block;
    margin-top: 5px;
    font-size: 0.85rem;
    font-style: italic;
}

.links {
    margin-top: 20px;
}

.btn {
    display: inline-block;
    background-color: var(--accent-color);
    color: #ffffff;
    padding: 11px 26px;
    margin: 6px 8px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.btn:hover {
    background-color: var(--accent-dark);
    transform: translateY(-1px);
}

.btn.disabled {
    background-color: #c8ccc4;
    cursor: default;
}

.btn.disabled:hover {
    background-color: #c8ccc4;
    transform: none;
}

.tldr {
    margin-top: 30px;
    max-width: 860px;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    font-size: 1.05rem;
    color: #3a3a3a;
    background-color: var(--accent-soft);
    padding: 25px 30px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    border-left: 4px solid var(--accent-color);
    text-align: left;
}

.teaser {
    text-align: center;
    margin-top: 24px;
}

.teaser-img,
.full-img {
    max-width: 100%;
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    display: block;
    margin: 0 auto;
}

.caption {
    font-size: 0.95rem;
    color: #555;
    margin-top: 15px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    display: block;
    max-width: 900px;
}

.caption strong {
    color: var(--accent-dark);
}

/* Emphasize key terms in NVIDIA green */
.abstract p strong,
.approach-subsection p strong,
.approach-steps li strong,
.tldr strong {
    color: var(--accent-dark);
}

.abstract a,
.approach a,
.results-table td a {
    color: var(--accent-dark);
    text-decoration: none;
    font-weight: 600;
}

.abstract a:hover,
.approach a:hover,
.results-table td a:hover {
    text-decoration: underline;
}

.abstract p {
    font-size: 1.05rem;
    text-align: justify;
    margin-bottom: 15px;
}

section {
    scroll-margin-top: 20px;
}

/* Demo video gallery */
.video-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin: 20px 0;
}

.video-card {
    background: var(--light-gray);
    border-radius: 8px;
    padding: 12px;
    border: 1px solid var(--border-color);
}

.video-card video {
    width: 100%;
    border-radius: 6px;
    display: block;
    background: #000;
}

.video-card .vcap {
    font-size: 0.9rem;
    color: #555;
    margin: 10px 4px 2px;
    text-align: center;
    font-style: italic;
}

/* Figure sections */
.figure-section {
    text-align: center;
}

.approach-subsection {
    margin-bottom: 44px;
    text-align: left;
}

.approach-subsection h3 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    margin-top: 30px;
    margin-bottom: 15px;
    color: var(--accent-dark);
    text-align: left;
    border-left: 4px solid var(--accent-color);
    padding-left: 12px;
}

.approach-subsection p {
    font-size: 1.05rem;
    text-align: justify;
    margin-bottom: 15px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.approach-steps {
    max-width: 900px;
    margin: 20px auto;
    text-align: left;
    font-size: 1.05rem;
    line-height: 1.8;
}

.approach-steps li {
    margin-bottom: 14px;
}

.highlight-box {
    background-color: var(--accent-soft);
    padding: 22px 28px;
    margin: 34px auto;
    border-radius: 8px;
    border-left: 4px solid var(--accent-color);
    max-width: 960px;
    text-align: center;
}

.highlight-box p {
    font-size: 1.05rem;
    color: var(--text-color);
    margin: 0;
    font-style: italic;
}

/* Table */
.table-responsive {
    overflow-x: auto;
    margin-bottom: 20px;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
    margin-bottom: 10px;
}

.results-table th,
.results-table td {
    padding: 6px 9px;
    border: 1px solid var(--border-color);
    text-align: center;
    white-space: nowrap;
}

.results-table th {
    background-color: var(--primary-color);
    font-weight: 600;
    color: #ffffff;
}

.results-table .suite-th {
    text-align: left;
}

.results-table .group-header td {
    background-color: var(--light-gray);
    font-weight: 700;
    text-align: left;
    color: var(--accent-dark);
}

.results-table .suite-cell {
    text-align: left;
    font-weight: 600;
    background-color: #fafbf8;
}

.results-table .ours-col {
    background-color: var(--accent-soft);
}

.results-table .overall-row td {
    border-top: 2px solid #bcbcbc;
    font-weight: 600;
}

.bold {
    font-weight: 800;
    color: var(--accent-dark);
}

.underline {
    text-decoration: underline;
}

/* Citation */
.citation-block {
    max-width: 980px;
    margin: 30px auto;
}

.citation pre {
    background-color: #f8f9fa;
    padding: 24px 28px;
    border-radius: 8px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.88rem;
    line-height: 1.7;
    border: 1px solid #e0e0e0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    margin: 0;
}

.citation code {
    font-family: 'Courier New', Courier, monospace;
    white-space: pre;
    display: block;
    color: #24292e;
}

footer {
    text-align: center;
    padding: 32px 0;
    margin-top: 60px;
    color: #ffffff;
    background-color: var(--primary-color);
    border-top: 4px solid var(--accent-color);
    font-size: 0.9rem;
}

footer a {
    color: var(--accent-color);
    text-decoration: none;
}

@media (max-width: 768px) {
    h1 {
        font-size: 1.7rem;
    }

    .author {
        display: inline-block;
        margin: 3px 6px;
    }

    .affiliation {
        display: block;
        margin: 5px 0;
    }

    .video-gallery {
        grid-template-columns: 1fr;
    }

    .results-table {
        font-size: 0.72rem;
    }

    .results-table th,
    .results-table td {
        padding: 4px 6px;
    }

    .tldr {
        padding: 20px 16px;
        font-size: 1rem;
    }
}