/* ── Reset & Base ─────────────────────────────────────────── */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.7;
    color: #2d2d2d;
    background: #fff;
}

/* ── Container ───────────────────────────────────────────── */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem 3rem;
}

/* ── Typography ──────────────────────────────────────────── */

h1, h2, h3 {
    font-family: Georgia, "Times New Roman", serif;
    font-weight: normal;
    color: #141414;
}

h1 {
    font-size: 2.2rem;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.3rem;
    border-bottom: 1px solid #e0e0e0;
}

h3 {
    font-size: 1.1rem;
    margin-bottom: 0.6rem;
}

p {
    margin-bottom: 1rem;
}

/* ── Header ──────────────────────────────────────────────── */

.hero {
    padding: 2.4rem 0 2rem;
    text-align: center;
}

.hero-inner {
    padding-bottom: 0;
}

.hero-layout {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.hero-left {
    flex: 1 1 55%;
    min-width: 0;
    text-align: center;
}

.hero-right {
    flex: 0 1 35%;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-right .paper-figure {
    margin: 0;
}

.hero-right .paper-figure img {
    max-height: 450px;
    height: auto;
    max-width: 100%;
}

.hero-right figcaption {
    font-size: 0.82rem;
    text-align: left;
}

.header-logo {
    display: block;
    margin: 0 auto 1rem;
    height: 110px;
    width: auto;
}

.chain-name {
    font-weight: bold;
    letter-spacing: 0.02em;
}

.tagline {
    max-width: 680px;
    margin: 0.4rem auto 1.2rem;
    font-size: 1.05rem;
    color: #4b4b4b;
    line-height: 1.55;
}

.badges {
    display: flex;
    gap: 0.6rem;
    justify-content: center;
    flex-wrap: wrap;
}

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.5rem 1.5rem;
    border-radius: 24px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    color: #fff;
    transition: transform 0.12s ease, box-shadow 0.12s ease, opacity 0.12s ease;
    box-shadow: 0 10px 24px rgba(0,0,0,0.12);
}

.badge:hover {
    opacity: 0.92;
    transform: translateY(-1px);
    box-shadow: 0 12px 28px rgba(0,0,0,0.16);
}

.badge:active {
    transform: translateY(0);
    box-shadow: 0 8px 18px rgba(0,0,0,0.12);
}

.badge:focus-visible {
    outline: 3px solid rgba(74,124,190,0.35);
    outline-offset: 3px;
}

.badge-paper { background: #4a7cbe; }
.badge-code  { background: #2d8a56; }
.badge-data  { background: #c6872a; }

/* ── Sections ────────────────────────────────────────────── */

section {
    margin-bottom: 2.5rem;
}

.section-alt {
    background: #f8f9fb;
    padding: 2rem 0;
}

#task-overview.section-alt {
    background: transparent;
    padding-top: 1.4rem;
}

#abstract p {
    text-align: justify;
}

.section-desc {
    color: #5c5c5c;
    font-size: 0.95rem;
    margin-bottom: 1.2rem;
}

/* ── Key Results ─────────────────────────────────────────── */

#key-results {
    margin-top: 1.5rem;
}

.results-panel {
    background: #f8f9fb;
    border: 1px solid #e2e6ef;
    border-radius: 12px;
    padding: 1.25rem 1.25rem;
}

.results-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.9rem;
    margin-bottom: 1.1rem;
}

.results-stat {
    text-align: center;
    padding: 0.25rem 0.2rem;
}

.results-stat-number {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 1.55rem;
    font-weight: 800;
    line-height: 1.05;
    font-variant-numeric: tabular-nums;
}

.results-stat-label {
    margin-top: 0.25rem;
    font-size: 0.82rem;
    color: #4b4b4b;
    line-height: 1.35;
}

.results-chart {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.chart-row {
    display: grid;
    grid-template-columns: minmax(150px, 200px) 1fr 70px;
    grid-template-areas: "model bar value";
    gap: 0.75rem;
    align-items: center;
}

.chart-model {
    grid-area: model;
    font-size: 0.88rem;
    font-weight: 600;
    color: #1e1e1e;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.chart-bar {
    grid-area: bar;
    position: relative;
    height: 28px;
    border-radius: 6px;
    background: #e9eef7;
    overflow: hidden;
}

.chart-bar-fill {
    height: 28px;
    border-radius: 6px;
    background: #4a7cbe;
    transition: width 0.5s ease;
    width: 0%;
}

.chart-row.is-best .chart-bar-fill {
    background: #2d8a56;
}

.chart-row.is-best .chart-model {
    font-weight: 700;
}

.chart-row.is-best .chart-value {
    color: #2d8a56;
}

.chart-value {
    grid-area: value;
    text-align: right;
    font-size: 0.85rem;
    font-weight: 700;
    color: #1e1e1e;
    font-variant-numeric: tabular-nums;
}

.chart-empty {
    color: #5c5c5c;
    font-size: 0.9rem;
    padding: 0.6rem 0;
}

.kr-blue { color: #4a7cbe; }
.kr-red { color: #c0392b; }
.kr-green { color: #2d8a56; }

/* ── Showcase ─────────────────────────────────────────────── */

#showcase {
    margin-top: 1.5rem;
}

.showcase-row {
    margin-top: 1.5rem;
}

.showcase-row:first-of-type {
    margin-top: 0;
}

.showcase-row-head {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #5c5c5c;
    margin-bottom: 0.65rem;
}

.showcase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.showcase-grid-stack {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.showcase-grid-tight {
    grid-template-columns: repeat(auto-fit, minmax(220px, 260px));
    justify-content: center;
}

.showcase-card {
    appearance: none;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    background: #fff;
    overflow: hidden;
    padding: 0;
    cursor: pointer;
    text-align: left;
    color: inherit;
    font-family: inherit;
    transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease;
}

.showcase-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 30px rgba(0,0,0,0.12);
    border-color: #d3d8e5;
}

.showcase-card:active {
    transform: translateY(0);
    box-shadow: 0 10px 22px rgba(0,0,0,0.10);
}

.showcase-card:focus-visible {
    outline: 3px solid rgba(74,124,190,0.35);
    outline-offset: 3px;
}

.showcase-thumb {
    height: 140px;
    background: #fafafa;
    display: flex;
    align-items: center;
    justify-content: center;
}

.showcase-thumb img,
.showcase-thumb video {
    width: 100%;
    height: 100%;
    display: block;
}

.showcase-thumb img {
    object-fit: contain;
    background: #fff;
}

.showcase-thumb video {
    object-fit: cover;
    background: #000;
}

.showcase-meta {
    padding: 0.6rem 0.75rem;
    border-top: 1px solid #e8e8e8;
}

.showcase-title {
    font-weight: 700;
    font-size: 0.93rem;
    color: #141414;
    line-height: 1.2;
}

.showcase-sub {
    margin-top: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.82rem;
    color: #5c5c5c;
}

/* ── Paper Figures ───────────────────────────────────────── */

.paper-figure {
    margin: 1.2rem 0;
    text-align: center;
}

.paper-figure img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

.paper-figure figcaption {
    margin-top: 0.6rem;
    font-size: 0.88rem;
    color: #4b4b4b;
    line-height: 1.5;
}

.paper-figure.figure-missing img {
    display: none;
}

.paper-figure.figure-missing::after {
    content: attr(data-placeholder);
    display: block;
    padding: 2rem;
    background: #f8f8f8;
    border: 2px dashed #ddd;
    border-radius: 6px;
    color: #757575;
    font-size: 0.9rem;
    font-style: italic;
}

/* ── Task Overview Cards ─────────────────────────────────── */

.task-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.task-card {
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 1.2rem;
    background: #fcfcfc;
    display: flex;
    flex-direction: column;
}

.task-card > p {
    flex: 1;
}

.task-card h3 {
    font-size: 1.15rem;
    margin-bottom: 0.2rem;
}

.task-card-sub {
    display: block;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 0.82rem;
    color: #707070;
    font-weight: normal;
    margin-bottom: 0.6rem;
}

.task-figure {
    margin: 0.6rem 0 0.8rem;
    aspect-ratio: 2.77;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.task-figure img {
    height: 100%;
    width: 100%;
    object-fit: contain;
}

.task-stats {
    list-style: none;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.88rem;
    color: #4b4b4b;
    margin-top: 0.2rem;
}

.task-stats li {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* ── Difficulty Dots ─────────────────────────────────────── */

.diff-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.diff-easy   { background: #45a764; }
.diff-medium { background: #d4982a; }
.diff-hard   { background: #c0392b; }

/* ── Level Selector ──────────────────────────────────────── */

#level-selector {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.2rem;
}

.level-btn {
    padding: 0.45rem 1rem;
    border: 2px solid #ddd;
    border-radius: 6px;
    background: #fafafa;
    cursor: pointer;
    font-size: 0.88rem;
    font-family: inherit;
    transition: border-color 0.15s, background 0.15s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.level-btn:hover {
    border-color: #aaa;
    background: #f0f0f0;
}

.level-btn.active {
    border-color: #4a7cbe;
    background: #eef3fb;
    font-weight: 600;
}

/* ── Viewer ──────────────────────────────────────────────── */

#viewer-container {
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 1.2rem;
    background: #fcfcfc;
}

#viewer-container.hidden {
    display: none;
}

.viewer-layout {
    display: flex;
    gap: 1.5rem;
    height: 600px;
}

.viewer-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    height: 100%;
}

#step-image-container {
    position: relative;
    background: #fff;
    border: 1px solid #eee;
    border-radius: 4px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    min-height: 0;
}

#step-image {
    max-width: 100%;
    max-height: 100%;
    height: auto;
    object-fit: contain;
    display: block;
}

#image-loading {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.85);
    font-size: 0.95rem;
    color: #707070;
}

#image-loading.hidden {
    display: none;
}

/* ── Slider ──────────────────────────────────────────────── */

.slider-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-top: 0.8rem;
}

.slider-btn {
    width: 32px;
    height: 32px;
    border: 1px solid #ccc;
    border-radius: 4px;
    background: #fff;
    cursor: pointer;
    font-size: 1.2rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.1s;
    flex-shrink: 0;
}

.slider-btn:hover {
    background: #f0f0f0;
}

.slider-btn:active {
    background: #e0e0e0;
}

#step-slider {
    flex: 1;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: #ddd;
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

#step-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #4a7cbe;
    border: 2px solid #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,0.25);
    cursor: pointer;
}

#step-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #4a7cbe;
    border: 2px solid #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,0.25);
    cursor: pointer;
}

#step-label {
    font-size: 0.88rem;
    color: #5c5c5c;
    white-space: nowrap;
    min-width: 80px;
    text-align: right;
}

/* ── Reasoning Panel (right side) ─────────────────────────── */

.viewer-reasoning {
    width: 380px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    height: 100%;
    border: 1px solid #e8e8e8;
    border-radius: 4px;
    background: #fff;
}

.reasoning-header {
    font-size: 0.9rem;
    font-weight: 600;
    color: #3b3b3b;
    padding: 0.6rem 0.8rem;
    border-bottom: 1px solid #e8e8e8;
    background: #fafafa;
    flex-shrink: 0;
}

#reasoning-content {
    flex: 1;
    overflow-y: auto;
    padding: 0.6rem 0.8rem;
}

/* ── Metrics Bar (horizontal) ────────────────────────────── */

#metrics-bar {
    margin-top: 0.8rem;
    padding: 0.6rem 1rem;
    border: 1px solid #e8e8e8;
    border-radius: 4px;
    background: #fafafa;
}

#metrics-panel {
    display: flex;
    flex-wrap: wrap;
    gap: 0.2rem 1.5rem;
    font-size: 0.85rem;
    align-items: baseline;
}

#metrics-panel dt {
    color: #707070;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

#metrics-panel dd {
    font-weight: 600;
    color: #2d2d2d;
    margin-right: 0.5rem;
}

.metric-solved {
    color: #2d8a56 !important;
}

.metric-failed {
    color: #c0392b !important;
}

.viewer-footnote {
    margin-top: 0.8rem;
    padding-top: 0.6rem;
    border-top: 1px solid #e8e8e8;
    font-size: 0.78rem;
    color: #757575;
    line-height: 1.5;
    margin-bottom: 0;
}

.viewer-footnote code {
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 0.76rem;
    background: #f0f0f0;
    padding: 0.1rem 0.35rem;
    border-radius: 3px;
    color: #7b5ea7;
}

/* ── Diffusion Model Results ─────────────────────────────── */

#diffusion-selector {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.2rem;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.video-card {
    border: 1px solid #e8e8e8;
    border-radius: 4px;
    overflow: hidden;
    background: #fff;
}

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

.video-label {
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: #3b3b3b;
    border-top: 1px solid #e8e8e8;
    text-align: center;
}

@media (max-width: 700px) {
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ── Diffusion Takeaway ──────────────────────────────────── */

.takeaway-callout {
    border-left: 3px solid #4a7cbe;
    background: #f8f9fb;
    padding: 0.8rem 1rem;
    border-radius: 0 6px 6px 0;
    font-style: italic;
    font-size: 0.9rem;
    margin-top: 1.2rem;
    color: #3b3b3b;
    margin: 0 0 1.2rem;
}

/* ── Overlay ──────────────────────────────────────────────── */

.overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.overlay.hidden {
    display: none;
}

.overlay-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.6);
}

.overlay-panel {
    position: relative;
    width: 90vw;
    height: 85vh;
    background: #fff;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 24px 70px rgba(0,0,0,0.35);
    display: flex;
    flex-direction: column;
}

.overlay-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 1rem;
    border-bottom: 1px solid #eee;
    background: #fff;
    flex-shrink: 0;
}

.overlay-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: #141414;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    padding-right: 1rem;
}

.overlay-close {
    width: 36px;
    height: 36px;
    border-radius: 18px;
    border: 1px solid #ddd;
    background: #fff;
    cursor: pointer;
    font-size: 1.25rem;
    line-height: 1;
    color: #3b3b3b;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.1s, border-color 0.1s;
    flex-shrink: 0;
}

.overlay-close:hover {
    background: #f3f3f3;
    border-color: #cfcfcf;
}

.overlay-close:focus-visible {
    outline: 3px solid rgba(74,124,190,0.35);
    outline-offset: 3px;
}

.overlay-body {
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

.overlay-body #viewer-container {
    height: 100%;
    border: 0;
    border-radius: 0;
    padding: 1rem;
    background: #fff;
    display: flex;
    flex-direction: column;
}

.overlay-body .viewer-layout {
    height: auto;
    flex: 1;
    min-height: 0;
}

.overlay-body #metrics-bar,
.overlay-body .viewer-footnote {
    flex-shrink: 0;
}

.overlay-video-wrap {
    height: 100%;
    display: flex;
    flex-direction: column;
    padding: 1rem;
    gap: 0.9rem;
}

.overlay-video-controls {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.overlay-video-frame {
    flex: 1;
    min-height: 0;
    border: 1px solid #e8e8e8;
    border-radius: 10px;
    overflow: hidden;
    background: #000;
}

.overlay-video-frame video {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
    background: #000;
}

.reasoning-block {
    padding: 0.8rem 1rem;
    margin-bottom: 0.5rem;
    border-radius: 4px;
    font-size: 0.88rem;
    line-height: 1.6;
}

.reasoning-agent {
    background: #f0f4fa;
    border-left: 3px solid #4a7cbe;
}

.reasoning-tool {
    background: #f5f0fa;
    border-left: 3px solid #7b5ea7;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 0.82rem;
    white-space: pre-wrap;
    word-break: break-word;
}

.reasoning-result {
    border-left: 3px solid #45a764;
    background: #f0faf4;
}

.reasoning-result.error {
    border-left-color: #c0392b;
    background: #faf0f0;
}

.reasoning-label {
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: #707070;
    margin-bottom: 0.3rem;
}

.reasoning-initial {
    background: #fafafa;
    border-left: 3px solid #ccc;
}

/* ── Action Block (tool call + result) ───────────────────── */

.action-block {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 0.4rem;
    padding: 0.5rem 0.8rem;
    margin-bottom: 0.5rem;
    border-radius: 4px;
    background: #f5f5f5;
    border: 1px solid #e8e8e8;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 0.82rem;
    line-height: 1.5;
}

.action-block.action-error {
    border-color: #e8c8c8;
    background: #fdf6f6;
}

.action-fn {
    font-weight: 700;
    color: #7b5ea7;
}

.action-args {
    color: #4b4b4b;
    word-break: break-all;
}

.action-badge {
    margin-left: auto;
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.action-badge-ok {
    background: #e6f4ea;
    color: #2d8a56;
}

.action-badge-error {
    background: #fce8e8;
    color: #c0392b;
}

/* ── Leaderboard Table ───────────────────────────────────── */

.table-wrap {
    overflow-x: auto;
}

#leaderboard-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

#leaderboard-table th,
#leaderboard-table td {
    padding: 0.45rem 0.6rem;
    text-align: right;
    border-bottom: 1px solid #e8e8e8;
    white-space: nowrap;
}

#leaderboard-table th:first-child,
#leaderboard-table td:first-child {
    text-align: left;
}

#leaderboard-table thead th {
    font-weight: 600;
    color: #4b4b4b;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border-bottom: 2px solid #ddd;
    vertical-align: bottom;
}

#leaderboard-table .col-group-header {
    text-align: center;
    font-size: 0.72rem;
    color: #707070;
    border-bottom: 1px solid #e8e8e8;
    padding-bottom: 0.3rem;
}

#leaderboard-table .section-label td {
    font-weight: 600;
    font-size: 0.8rem;
    color: #5c5c5c;
    background: #f8f8f8;
    border-bottom: 1px solid #ddd;
    padding: 0.5rem 0.6rem;
    font-style: italic;
}

#leaderboard-table tbody tr:hover:not(.section-label) {
    background: #f8f9fb;
}

.cell-best {
    font-weight: 700;
    color: #141414;
}

#leaderboard-table .sortable {
    cursor: pointer;
    user-select: none;
    transition: color 0.1s;
}

#leaderboard-table .sortable:hover {
    color: #4a7cbe;
}

.cell-model {
    font-weight: 500;
}

/* ── Analysis Tables ──────────────────────────────────────── */

.analysis-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.analysis-card {
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 1.2rem;
    background: #fcfcfc;
}

.analysis-card h3 {
    margin-bottom: 0.3rem;
}

.analysis-card .section-desc {
    font-size: 0.85rem;
    margin-bottom: 0.8rem;
}

.diagnosis-note {
    margin-top: 0.6rem;
    font-size: 0.85rem;
    color: #4b4b4b;
    border-left: 3px solid #7b5ea7;
    background: #f8f9fb;
    padding: 0.55rem 0.75rem;
    border-radius: 0 8px 8px 0;
}

.failure-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.failure-card {
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    padding: 1.2rem;
    background: #fcfcfc;
    display: grid;
    grid-template-rows: auto 1fr auto;
}

.failure-persona {
    font-size: 1.15rem;
    font-style: italic;
    margin-bottom: 0.35rem;
}

.failure-desc {
    font-size: 0.9rem;
    color: #4b4b4b;
    margin-bottom: 0;
}

.failure-viewer {
    margin-top: 0.9rem;
    border: 1px solid #e8e8e8;
    border-radius: 10px;
    overflow: hidden;
    background: #fff;
    display: flex;
    flex-direction: column;
}

.failure-media {
    position: relative;
    height: 200px;
    background: #fafafa;
    display: flex;
    align-items: center;
    justify-content: center;
}

.failure-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #fff;
    display: block;
}

.failure-step-label {
    position: absolute;
    top: 0.65rem;
    right: 0.65rem;
    background: rgba(0,0,0,0.65);
    color: #fff;
    font-size: 0.72rem;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    font-variant-numeric: tabular-nums;
}

.failure-action {
    padding: 0.6rem 0.75rem;
    border-top: 1px solid #eee;
    height: 180px;
    overflow: auto;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
}

.failure-action .action-block {
    align-items: flex-start;
    margin-bottom: 0;
}

.failure-action .action-fn {
    flex-shrink: 0;
}

.failure-action .action-args {
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
    word-break: normal;
    overflow-wrap: anywhere;
}

.failure-action .action-badge {
    margin-left: 0;
    flex-basis: 100%;
    white-space: normal;
}

.analysis-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
}

.analysis-table th,
.analysis-table td {
    padding: 0.35rem 0.5rem;
    text-align: right;
    border-bottom: 1px solid #e8e8e8;
    white-space: nowrap;
}

.analysis-table th:first-child,
.analysis-table td:first-child {
    text-align: left;
}

.analysis-table thead th {
    font-weight: 600;
    color: #4b4b4b;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    border-bottom: 2px solid #ddd;
    vertical-align: bottom;
}

.analysis-table thead tr:first-child th[colspan] {
    text-align: center;
    font-size: 0.72rem;
    color: #707070;
    border-bottom: 1px solid #e8e8e8;
    padding-bottom: 0.25rem;
}

.analysis-table tbody tr:hover {
    background: #f8f9fb;
}

.cell-delta-neg {
    color: #c0392b;
    font-weight: 600;
}

/* ── Citation ────────────────────────────────────────────── */

.bibtex-wrap {
    position: relative;
}

#bibtex {
    background: #f5f5f5;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    padding: 1rem 1.2rem;
    font-size: 0.82rem;
    overflow-x: auto;
    line-height: 1.5;
}

.btn-copy {
    position: absolute;
    top: 0.6rem;
    right: 0.6rem;
    padding: 0.25rem 0.6rem;
    border: 1px solid #ccc;
    border-radius: 3px;
    background: #fff;
    cursor: pointer;
    font-size: 0.78rem;
    font-family: inherit;
    color: #5c5c5c;
    transition: background 0.1s;
}

.btn-copy:hover {
    background: #eee;
}

/* ── Footer ──────────────────────────────────────────────── */

footer {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid #e0e0e0;
    color: #757575;
    font-size: 0.85rem;
}

/* ── Responsive ──────────────────────────────────────────── */

@media (max-width: 700px) {
    h1 { font-size: 1.6rem; }

    .hero-layout {
        flex-direction: column;
    }

    .hero-left {
        text-align: center;
    }

    .header-logo {
        height: 80px;
    }

    .badge {
        padding: 0.5rem 1.2rem;
        font-size: 0.92rem;
    }

    .hero-right .paper-figure img {
        max-height: 420px;
    }

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

    .results-stats {
        grid-template-columns: 1fr;
        gap: 0.8rem;
        margin-bottom: 1rem;
    }

    .results-stat {
        text-align: left;
        padding: 0;
    }

    .chart-row {
        grid-template-columns: 1fr auto;
        grid-template-areas:
            "model value"
            "bar bar";
        gap: 0.45rem 0.6rem;
    }

    .chart-model {
        white-space: normal;
    }

    .failure-grid {
        grid-template-columns: 1fr;
    }

    .task-cards {
        grid-template-columns: 1fr;
    }

    .analysis-grid {
        grid-template-columns: 1fr;
    }

    .viewer-layout {
        flex-direction: column;
        height: auto;
    }

    .viewer-reasoning {
        width: 100%;
        max-height: 300px;
        height: auto;
    }

    .overlay-panel {
        width: 100vw;
        height: 100vh;
        border-radius: 0;
    }

    .overlay-video-wrap {
        padding: 0.9rem;
    }
}

.authors {
    margin: 10px 0 6px;
    font-size: 0.95rem;
    line-height: 1.35;
    opacity: 0.85;
  }
  
  .author-notes {
    margin: 0 0 14px;
    font-size: 0.85rem;
    line-height: 1.3;
    opacity: 0.75;
  }