:root {
  color-scheme: light;
  --content-width: 1280px;
  --page-gutter: 24px;
  --ink: #383838;
  --muted: #707070;
  --accent: #436781;
  --accent-hover: #365773;
  --accent-soft: #e4ebf1;
  --accent-border: #b0c4d4;
  --line: #dde5ec;
  --panel: #f8fafb;
  --panel-strong: #eef4f8;
  --shadow: 0 9px 30px rgb(46 68 82 / 6%);
  font-family: Avenir, "Segoe UI", system-ui, Helvetica, Arial, sans-serif;
  font-synthesis: none;
  color: var(--ink);
  background: #fff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body { margin: 0; font-size: 18px; line-height: 1.65; }
img { display: block; max-width: 100%; height: auto; }
a { color: var(--accent); text-underline-offset: 3px; }
h1, h2, h3, p, figure { margin: 0; }
h1, h2, h3 { font-weight: 700; color: var(--accent); }
svg { fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
button, input, select { font: inherit; color: inherit; }
button, select, summary, [tabindex] { cursor: pointer; }
button { border: 0; background: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
::selection { background: var(--accent-soft); }

.container { width: min(var(--content-width), calc(100% - 2 * var(--page-gutter))); margin-inline: auto; }
.skip-link { position: absolute; left: 16px; top: -100px; z-index: 30; padding: 10px 18px; background: #fff; border: 1px solid var(--accent-border); border-radius: 8px; }
.skip-link:focus { top: 12px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }

.paper-header { padding-top: 48px; text-align: center; }
h1 { max-width: 1080px; margin-inline: auto; font-size: 50px; line-height: 1.16; letter-spacing: -.7px; }
.project-name { color: var(--ink); }
.authors { margin-top: 22px; font-size: 24px; }
.paper-meta { margin-top: 6px; font-size: 16px; color: var(--muted); }
.paper-links { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 22px; }
.paper-button { display: inline-flex; align-items: center; gap: 8px; min-height: 42px; padding: 8px 16px; border: 1px solid var(--accent-border); border-radius: 8px; background: #fff; font-size: 16px; font-weight: 600; text-decoration: none; transition: background 180ms ease, border-color 180ms ease; }
.paper-button:hover { background: var(--accent-soft); border-color: var(--accent); }
.paper-button svg { width: 18px; height: 18px; }
.paper-button.muted { background: var(--panel); color: var(--muted); border-style: dashed; cursor: default; }

.case-showcase { margin-top: 34px; margin-bottom: 46px; }
[data-explorer] .explorer-host { min-height: 440px; }
[hidden] { display: none !important; }
.showcase-description { max-width: 1000px; margin: 0 auto 24px; font-size: 21px; line-height: 1.65; text-align: center; text-wrap: pretty; }
.showcase-signature { white-space: nowrap; }
.explorer-block { border: 1px solid var(--line); border-radius: 12px; background: #fff; box-shadow: var(--shadow); padding: 18px; }
.explorer-topbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; padding-bottom: 14px; }
.case-tabs { display: flex; flex-wrap: wrap; gap: 6px; }
.case-tab { min-height: 38px; padding: 7px 14px; border: 1px solid transparent; border-radius: 8px; font-size: 15px; color: #566370; }
.case-tab:hover { background: var(--panel-strong); }
.case-tab.active { background: var(--accent-soft); border-color: var(--accent-border); color: var(--accent-hover); font-weight: 600; }
.demo-badge { font-size: 12px; font-weight: 700; letter-spacing: .06em; color: #5b6b78; background: var(--panel-strong); border: 1px solid var(--accent-border); border-radius: 6px; padding: 6px 10px; }
.demo-badge.real { color: #365773; background: var(--accent-soft); border-color: var(--accent); }
.published-picker { font-size: 15px; color: #566370; }
.published-picker[hidden] { display: none; }
.published-picker select { max-width: 240px; }

.method-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding-bottom: 14px; }
.method-bar-label { font-size: 13px; font-weight: 600; color: #566370; }
.method-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.method-chip { display: inline-flex; align-items: center; gap: 6px; min-height: 36px; padding: 6px 12px; border: 1px solid var(--accent-border); border-radius: 18px; background: #fff; font-size: 14px; color: #566370; transition: background 180ms ease, border-color 180ms ease; }
.method-chip:hover:not(:disabled) { background: var(--panel-strong); }
.method-chip.selected { background: var(--accent-soft); border-color: var(--accent); color: var(--accent-hover); font-weight: 600; }
.method-chip.chip-ours.selected { background: var(--accent); border-color: var(--accent); color: #fff; }
.method-chip[disabled] { opacity: .45; cursor: not-allowed; }
.chip-size { font-size: 11px; color: #8b959d; }
.method-chip.selected .chip-size { color: inherit; opacity: .75; }
.method-hint { font-size: 12px; color: var(--muted); }

.viewer-grid { display: grid; gap: 14px; }
.viewer-grid[data-columns="1"] { grid-template-columns: minmax(0, 1fr); }
.viewer-grid[data-columns="2"] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.viewer-grid[data-columns="3"] { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.viewer-grid[data-columns="2"] .viewport { height: 400px; }
.viewer-grid[data-columns="1"] .viewport { height: 380px; }
.viewer-card { min-width: 0; border: 1px solid var(--line); border-radius: 10px; background: var(--panel); overflow: hidden; transition: border-color 180ms ease; }
.viewer-card.accent-card { background: var(--panel-strong); border-color: var(--accent-border); }
.viewer-card.drag-over { border: 2px dashed var(--accent); }
.viewer-card-heading { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 14px 16px 0; font-size: 14px; }
.viewer-card-heading > span:first-child { display: flex; align-items: center; gap: 8px; min-width: 0; }
.viewer-card-heading strong { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.panel-dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.dot-input { background: #9aa7b1; }
.dot-reference { background: #6f8296; }
.dot-ours { background: var(--accent); }
.panel-number { font-size: 12px; color: #8b959d; }
.viewport { width: 100%; height: 330px; cursor: grab; touch-action: none; }
.viewport:active { cursor: grabbing; }
.viewport canvas { display: block; width: 100%; height: 100%; }
.viewer-card-footer { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 11px 16px; border-top: 1px solid var(--line); font-size: 12px; color: var(--muted); }
.viewer-card-footer > span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.import-button { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; color: var(--accent); white-space: nowrap; }
.import-button:hover { color: var(--accent-hover); }
.import-button svg { width: 16px; height: 16px; }

.viewer-toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; padding-top: 14px; }
.toolbar-group, .mode-buttons { display: flex; flex-wrap: wrap; align-items: center; gap: 4px; }
.tool-button { display: inline-flex; align-items: center; gap: 6px; min-height: 38px; padding: 7px 12px; border: 1px solid transparent; border-radius: 8px; font-size: 14px; color: #566370; }
.tool-button:hover { background: var(--panel-strong); }
.tool-button.selected { background: var(--accent-soft); border-color: var(--accent-border); color: var(--accent-hover); font-weight: 600; }
.tool-button[disabled] { opacity: .5; cursor: not-allowed; }
.toolbar-separator { width: 1px; height: 20px; background: var(--line); margin: 0 6px; }

.advanced-controls { font-size: 14px; color: #566370; border-top: 1px solid var(--line); margin-top: 14px; }
.advanced-controls summary { padding-top: 12px; }
.advanced-controls summary span { font-size: 13px; color: #8b959d; margin-left: 8px; }
.advanced-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 28px; padding: 16px 4px 8px; }
.advanced-grid label { display: flex; align-items: center; gap: 10px; }
.advanced-grid input[type=range] { accent-color: var(--accent); max-width: 180px; }
.advanced-grid input[type=checkbox] { accent-color: var(--accent); width: 16px; height: 16px; }
.field-hint { font-size: 12px; color: #8b959d; }

.viewer-note { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; margin-top: 12px; font-size: 13px; line-height: 1.7; color: var(--muted); }
.viewer-note > span:first-child { max-width: 780px; }
.interaction-hint { font-size: 12px; color: #8b959d; }
.viewer-status { margin-top: 6px; font-size: 13px; color: var(--muted); min-height: 20px; }
.viewer-status.error { color: #a33a2a; }
.noscript-note { padding: 20px; text-align: center; font-size: 16px; color: var(--muted); }
.error-message { padding: 28px 18px; text-align: center; font-size: 14px; line-height: 1.7; color: #a33a2a; }

.paper-section { padding-block: 46px; }
.abstract-section { border-block: 1px solid var(--line); background: #f7f9fb; }
h2 { position: relative; width: fit-content; margin: 0 auto 24px; padding-bottom: 14px; font-size: 40px; line-height: 1.25; letter-spacing: -.6px; text-align: center; }
h2::after { content: ""; position: absolute; left: 50%; bottom: 0; width: 76px; height: 3px; border-radius: 2px; background: var(--accent); transform: translateX(-50%); }
.abstract-copy { font-size: 19px; line-height: 1.8; text-align: justify; }
.section-intro { max-width: 860px; margin: -6px auto 26px; text-align: center; color: #5d656b; font-size: 17px; }

.method-section { padding-top: 52px; }
.method-figure { margin-top: 30px; }
.method-image-link { display: block; cursor: zoom-in; border: 1px solid var(--line); border-radius: 12px; background: #fff; overflow: hidden; }
.method-image { width: 100%; height: auto; }
.method-figure figcaption { display: flex; align-items: flex-start; gap: 24px; margin: 22px auto 0; font-size: 16px; line-height: 1.75; color: #5d656b; }
.method-figure figcaption p { flex: 1; min-width: 0; }
.figure-full-size { display: inline-flex; flex: none; align-items: center; gap: 8px; min-height: 42px; padding: 7px 12px; border: 1px solid #d2dce5; border-radius: 7px; background: #f7f9fb; font-size: 15px; font-weight: 600; text-decoration: none; white-space: nowrap; transition: border-color 180ms ease, background 180ms ease; }
.figure-full-size:hover { border-color: var(--accent); background: var(--accent-soft); }
.figure-full-size svg { width: 17px; height: 17px; }
.method-caveat { max-width: 1000px; margin: 22px auto 0; font-size: 14px; line-height: 1.8; color: #7d868e; }

.results-toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 16px; margin-bottom: 26px; }
.condition-label { display: inline-flex; align-items: center; gap: 10px; font-size: 15px; color: #566370; }
select { border: 1px solid var(--accent-border); border-radius: 8px; background: #fff; padding: 8px 14px; font-size: 15px; }
.source-label { font-size: 13px; color: var(--muted); }
.results-layout { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: start; }
.chart-heading { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 16px; font-size: 14px; font-weight: 600; color: #566370; }
.chart-heading > span:last-child { font-weight: 400; font-size: 12px; color: var(--muted); }
.bar-row { display: grid; grid-template-columns: 96px 1fr 54px; align-items: center; gap: 12px; height: 34px; font-size: 13px; color: #5d656b; }
.bar-row.ours { color: var(--accent-hover); font-weight: 700; }
.bar-track { height: 10px; background: var(--panel-strong); border-radius: 3px; overflow: hidden; }
.bar-fill { height: 100%; background: #a9bac8; border-radius: 3px; transition: width 500ms ease; }
.bar-row.ours .bar-fill { background: var(--accent); }
.bar-value { font-variant-numeric: tabular-nums; text-align: right; font-size: 13px; }
.table-wrap table { width: 100%; border-collapse: collapse; font-size: 14px; font-variant-numeric: tabular-nums; }
th, td { padding: 10px 12px; text-align: right; border-bottom: 1px solid var(--line); }
th:first-child, td:first-child { text-align: left; }
th { font-size: 12px; font-weight: 600; color: #7d868e; }
td { color: #566370; }
tr.ours td { background: var(--accent-soft); color: var(--accent-hover); font-weight: 600; }
td.best { font-weight: 800; }
.results-footnote { max-width: 1040px; margin: 24px auto 0; font-size: 13px; line-height: 1.8; color: #7d868e; }
.site-footer { border-top: 1px solid var(--line); background: #f7f9fb; padding: 20px 0; color: #7d868e; font-size: 15px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.footer-top { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; font-weight: 600; text-decoration: none; white-space: nowrap; }
.footer-top svg { width: 17px; height: 17px; transition: transform 180ms ease; }
.footer-top:hover svg { transform: translateY(-2px); }

@media (max-width: 1100px) {
  .results-layout { grid-template-columns: 1fr; gap: 30px; }
  .viewport { height: 280px; }
  h1 { font-size: 42px; }
  h2 { font-size: 34px; }
  .advanced-grid { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  :root { --page-gutter: 18px; }
  body { font-size: 17px; }
  .paper-header { padding-top: 32px; }
  h1 { font-size: 34px; line-height: 1.22; letter-spacing: -.5px; }
  .authors { font-size: 20px; margin-top: 16px; }
  h2 { font-size: 29px; margin-bottom: 20px; }
  .showcase-description { font-size: 18px; }
  .abstract-copy { font-size: 17px; text-align: left; }
  .paper-section { padding-block: 34px; }
  .viewer-grid[data-columns] { grid-template-columns: 1fr; }
  .viewer-grid[data-columns] .viewport { height: 320px; }
  .explorer-block { padding: 14px; }
  .method-bar { gap: 8px; }
  .method-chip { font-size: 13px; padding: 6px 10px; }
  .viewer-toolbar { justify-content: center; }
  .tool-button { font-size: 13px; padding: 7px 10px; }
  .method-figure figcaption { flex-direction: column; gap: 14px; }
  .footer-inner { flex-direction: column; gap: 10px; text-align: center; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}