:root {
    --bg: #ffffff;
    --surface: #ffffff;
    --surface-strong: #ffffff;
    --ink: #132033;
    --muted: #556277;
    --line: rgba(19, 32, 51, 0.10);
    --accent: #165d8f;
    --accent-soft: rgba(22, 93, 143, 0.08);
    --warm: #165d8f;
    --shadow: 0 12px 32px rgba(19, 32, 51, 0.05);
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --max-width: 1160px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--ink);
    background: var(--bg);
    font-family: "Source Serif 4", Georgia, serif;
}

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

a {
    color: inherit;
}

code {
    padding: 0.15rem 0.45rem;
    border-radius: 999px;
    background: rgba(19, 32, 51, 0.08);
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.92em;
}

.page-shell {
    width: min(calc(100% - 32px), var(--max-width));
    margin: 0 auto;
    padding: 36px 0 72px;
}

.section {
    margin-top: 28px;
    padding: 32px;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.hero {
    position: relative;
    overflow: hidden;
    padding: 42px 32px 34px;
    background: var(--surface-strong);
}

.hero::after {
    content: "";
    position: absolute;
    inset: auto -40px -80px auto;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(22, 93, 143, 0.08), transparent 68%);
    pointer-events: none;
}

.eyebrow,
.section-kicker,
.slot-tag,
.slot-type,
.prompt-label {
    font-family: "Space Grotesk", sans-serif;
}

.eyebrow,
.section-kicker {
    margin: 0 0 10px;
    font-size: 0.88rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
}

h1,
h2,
strong,
.button,
.authors {
    font-family: "Space Grotesk", sans-serif;
}

h3 {
    margin: 0;
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.18rem;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

strong {
    color: #203247;
    font-weight: 700;
}

h1 {
    max-width: 980px;
    margin: 0;
    font-size: clamp(1.80rem, 4.20vw, 3.50rem);
    line-height: 1.03;
    letter-spacing: -0.04em;
}

h2 {
    margin: 0;
    font-size: clamp(1.5rem, 3.2vw, 2.4rem);
    line-height: 1.08;
    letter-spacing: -0.03em;
}

.hero-copy,
.body-copy,
.section-note,
.template-note,
figcaption,
.footnote,
.affiliations {
    color: var(--muted);
}

.hero-copy {
    max-width: 780px;
    margin: 18px 0 0;
    font-size: 1.15rem;
    line-height: 1.75;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 18px;
    border-radius: 999px;
    border: 1px solid transparent;
    text-decoration: none;
    font-size: 0.98rem;
    font-weight: 600;
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.button:hover {
    transform: translateY(-1px);
}

.button-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--accent), #10486d);
    box-shadow: 0 10px 22px rgba(22, 93, 143, 0.16);
}

.authors,
.affiliations {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
}

.authors {
    margin-top: 28px;
    font-size: 1.03rem;
    font-weight: 500;
}

.authors span,
.affiliations span {
    display: inline-flex;
    align-items: baseline;
    gap: 4px;
}

.authors sup,
.affiliations sup {
    color: var(--warm);
    font-weight: 700;
}

.affiliations {
    margin-top: 12px;
    font-size: 0.98rem;
}

.footnote {
    margin: 14px 0 0;
    font-size: 0.95rem;
}

.section-heading {
    display: grid;
    gap: 6px;
    margin-bottom: 22px;
}

.section-note,
.template-note,
figcaption,
.prompt-placeholder,
.video-placeholder {
    font-size: 0.98rem;
    line-height: 1.65;
}

.body-copy {
    margin: 0;
    font-size: 1.07rem;
    line-height: 1.9;
}

.figure-grid {
    display: grid;
    gap: 18px;
}

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

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

.figure-stack {
    display: grid;
    gap: 18px;
    margin-top: 18px;
}

.subsection-block {
    padding: 22px;
    border: 1px solid rgba(19, 32, 51, 0.08);
    border-radius: 22px;
    background: #fcfdff;
}

.subsection-block + .subsection-block {
    margin-top: 28px;
}

.subsection-heading {
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(19, 32, 51, 0.10);
}

.subsection-heading h3 {
    color: #17324d;
}

.subsection-copy {
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.8;
}

.subsection-copy p {
    margin: 0;
}

.subsection-copy p + p {
    margin-top: 12px;
}

.workflow-list {
    margin: 0;
    padding-left: 1.35rem;
}

.workflow-list li + li {
    margin-top: 10px;
}

.workflow-list + p {
    margin-top: 14px;
}

.training-points {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 12px;
}

.training-point {
    display: grid;
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 12px;
    align-items: start;
    padding: 12px 14px;
    border-radius: 14px;
    background: rgba(22, 93, 143, 0.06);
    border: 1px solid rgba(22, 93, 143, 0.10);
}

.training-index {
    display: inline-grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 999px;
    background: rgba(22, 93, 143, 0.12);
    color: #17324d;
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.95rem;
    font-weight: 700;
}

.training-point strong {
    display: block;
    margin-bottom: 4px;
    color: #17324d;
}

.training-point p {
    margin: 0;
    color: var(--muted);
    line-height: 1.65;
}

.subsection-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.97fr) minmax(420px, 1.03fr);
    gap: 18px;
    align-items: start;
}

.subsection-block .paper-figure {
    box-shadow: none;
}

.paper-figure {
    margin: 0;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: #ffffff;
}

.paper-figure img {
    width: 100%;
    border-radius: 10px;
}

.paper-figure-wide {
    padding: 20px;
}

.paper-figure-aside {
    max-width: 620px;
    margin-left: auto;
    width: 100%;
}


.paper-figure-table {
    max-width: 980px;
    margin-left: auto;
    margin-right: auto;
}

.results-table-wrap {
    overflow-x: auto;
    border: 1px solid rgba(19, 32, 51, 0.10);
    border-radius: 18px;
    background: #ffffff;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 760px;
    font-size: 0.98rem;
}

.results-table th,
.results-table td {
    padding: 14px 16px;
    border-bottom: 1px solid rgba(19, 32, 51, 0.08);
    text-align: left;
}

.results-table thead th {
    background: #f7f9fc;
    color: #17324d;
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.9rem;
    font-weight: 700;
}

.results-table tbody tr:last-child td {
    border-bottom: none;
}

.results-table .baseline-row {
    background: #fbfcfe;
}

.results-table .ours-row {
    background: rgba(22, 93, 143, 0.05);
}

.results-table .ours-row td:nth-child(2) {
    color: #17324d;
    font-weight: 700;
}

.results-note {
    margin: 0;
    padding: 14px 16px 16px;
    border-top: 1px solid rgba(19, 32, 51, 0.08);
    color: var(--muted);
    line-height: 1.7;
}

.paper-figure.compact {
    padding: 16px;
}

figcaption {
    margin-top: 14px;
}

.template-note {
    margin-bottom: 18px;
    padding: 16px 18px;
    border: 1px dashed rgba(13, 108, 99, 0.35);
    border-radius: var(--radius-sm);
    background: var(--accent-soft);
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.video-card {
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: #ffffff;
}

.video-card .video {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    height: auto;
    border-radius: 14px;
    background: #0b1220;
    object-fit: contain;
    overflow: hidden;
}

.slot-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.slot-tag {
    font-size: 0.84rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
}

.slot-type {
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(22, 93, 143, 0.08);
    color: var(--warm);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.video-placeholder {
    display: grid;
    place-items: center;
    min-height: 220px;
    padding: 18px;
    border: 1.5px dashed rgba(19, 32, 51, 0.18);
    border-radius: var(--radius-sm);
    background: #fafbfd;
    text-align: center;
}

.prompt-label {
    margin: 16px 0 4px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
}

.prompt-placeholder {
    margin: 0;
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    background: rgba(19, 32, 51, 0.05);
    color: #677387;
    line-height: 1.60;
    max-height: calc(1.60em * 2 + 28px);
    overflow-y: auto;
}

@media (max-width: 1024px) {
    .figure-grid-three,
    .video-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

    .paper-figure-aside {
        max-width: 560px;
        margin-left: 0;
    }
}

@media (max-width: 720px) {
    .page-shell {
        width: min(calc(100% - 20px), var(--max-width));
        padding: 18px 0 42px;
    }

    .section,
    .hero {
        padding: 24px 18px;
        border-radius: 22px;
    }

    .authors,
    .affiliations,
    .slot-header {
        display: block;
    }

    .authors span,
    .affiliations span {
        display: inline;
    }

    .authors span:not(:last-child)::after,
    .affiliations span:not(:last-child)::after {
        content: " / ";
        color: rgba(85, 98, 119, 0.65);
    }

    .figure-grid-two,
    .figure-grid-three,
    .video-grid {
        grid-template-columns: 1fr;
    }

    .slot-type {
        display: inline-flex;
        margin-top: 8px;
    }

    .video-placeholder {
        min-height: 180px;
    }
}