:root {
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --line: #e4e2dd;
  --paper: #ffffff;
  --tint: #f7f6f3;
  --red: #c0392b;
  --blue: #2e5eaa;
  --teal: #1f7a6d;
  --serif: "Source Serif 4", Georgia, serif;
  --sans: "Inter", -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 16.5px/1.7 var(--sans); -webkit-font-smoothing: antialiased; }
.wrap { max-width: 1088px; margin: 0 auto; padding: 0 32px; }
section { padding: 80px 0; }
section.tinted { background: var(--tint); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
h2 { font: 600 32px/1.2 var(--serif); margin: 0 0 32px; letter-spacing: -0.01em; text-align: center; }
h3 { font: 600 19px/1.35 var(--serif); margin: 14px 0 10px; }
em { font-style: italic; }
a { color: var(--blue); }

.hero { padding: 88px 0 40px; text-align: center; background: radial-gradient(1200px 400px at 50% -10%, #f3efe8 0%, #fff 70%); }
.venue { text-transform: uppercase; letter-spacing: 0.16em; font-size: 12px; color: var(--muted); margin: 0 0 18px; }
.hero h1 { font: 600 clamp(32px, 4.6vw, 50px)/1.15 var(--serif); margin: 0 0 28px; letter-spacing: -0.015em; }
.authors { font-size: 19px; margin: 0 0 8px; }
.authors span { margin: 0 14px; white-space: nowrap; }
.affils { color: var(--muted); font-size: 14.5px; margin: 0 0 6px; }
.affils span { display: block; }
.notes { color: var(--muted); font-size: 13.5px; margin: 0 0 30px; }
.buttons { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px; border-radius: 999px; background: var(--ink); color: #fff; text-decoration: none; font-size: 15px; font-weight: 500; transition: transform .15s, background .15s; }
.btn:hover { transform: translateY(-1px); background: #000; }
.btn svg { width: 18px; height: 18px; }
.btn.disabled { background: #b8b6b1; cursor: default; }
.btn.disabled:hover { transform: none; }

.teaser { padding: 24px 0 40px; }
.teaser + section { padding: 0 0 8px; }
.video-panel { background: #0b0b0c; border-radius: 14px; overflow: hidden; box-shadow: 0 24px 60px -24px rgba(0,0,0,.45); }
.video-panel video { display: block; width: 100%; height: auto; }
.labels { display: grid; grid-template-columns: repeat(4, 1fr); color: #cfcfd2; font-size: 13px; font-weight: 500; letter-spacing: .02em; }
.labels span { padding: 10px 0; text-align: center; }
.labels .ours { color: #fff; background: rgba(192,57,43,.85); }
.caption, .lead { color: var(--muted); font-size: 15px; text-align: center; margin: 18px auto 0; max-width: 860px; }
.lead { margin: 0 auto 28px; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stats div { padding: 26px 12px; text-align: center; border-right: 1px solid var(--line); }
.stats div:last-child { border-right: none; }
.stats b { display: block; font: 600 34px/1.1 var(--serif); color: var(--red); margin-bottom: 6px; }
.stats span { color: var(--muted); font-size: 13.5px; line-height: 1.4; display: block; }

.abstract { text-align: justify; hyphens: auto; font-size: 17px; line-height: 1.75; margin: 0; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: #fff; border: 1px solid var(--line); border-top: 3px solid; border-radius: 12px; padding: 22px 22px 18px; font-size: 15px; line-height: 1.65; }
.card p { margin: 0; color: #3a3a3c; }
.badge { width: 30px; height: 30px; border-radius: 50%; color: #fff; display: grid; place-items: center; font: 600 15px var(--sans); }
.c1 { border-top-color: var(--blue); } .c1 .badge { background: var(--blue); } .c1 h3 { color: var(--blue); }
.c2 { border-top-color: var(--red); }  .c2 .badge { background: var(--red); }  .c2 h3 { color: var(--red); }
.c3 { border-top-color: var(--teal); } .c3 .badge { background: var(--teal); } .c3 h3 { color: var(--teal); }

figure { margin: 0 0 40px; }
figure img { width: 100%; display: block; border-radius: 10px; border: 1px solid var(--line); }
figcaption { color: var(--muted); font-size: 14.5px; margin-top: 12px; }

.tabs { display: flex; gap: 8px; justify-content: center; margin-bottom: 18px; }
.tab { font: 500 14.5px var(--sans); padding: 8px 18px; border-radius: 999px; border: 1px solid var(--line); background: #fff; color: var(--ink); cursor: pointer; }
.tab.active { background: var(--ink); color: #fff; border-color: var(--ink); }

table { border-collapse: collapse; width: 100%; font-size: 15px; font-variant-numeric: tabular-nums; }
th, td { padding: 10px 12px; text-align: center; border-bottom: 1px solid var(--line); }
th { font-weight: 600; color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: .06em; }
td:first-child, th:first-child { text-align: left; }
.psnr { width: 100%; margin: 28px 0 0; background: #fff; border: 1px solid var(--line); border-radius: 10px; border-collapse: separate; border-spacing: 0; overflow: hidden; }
.psnr tbody tr:last-child td { border-bottom: none; }
.psnr tbody tr { cursor: pointer; transition: background .15s; }
.psnr tbody tr.active { background: #fbf1ef; }
.psnr .ours { color: var(--red); font-weight: 600; }
.fineprint { color: var(--muted); font-size: 13px; text-align: center; margin-top: 14px; }

.split { display: grid; grid-template-columns: 1.05fr 1fr; gap: 36px; align-items: start; }
.split img { width: 100%; border: 1px solid var(--line); border-radius: 10px; }
.split p { margin-top: 0; font-size: 15.5px; }
.split .fineprint { text-align: left; }
.rate td:first-child { white-space: nowrap; }
.tag { font-size: 11px; padding: 2px 7px; border-radius: 999px; background: #eceae5; color: var(--muted); margin-left: 6px; vertical-align: 1px; }
.tag.measured { background: var(--red); color: #fff; }

pre { background: #16161a; color: #e8e6e3; padding: 18px 20px; border-radius: 10px; overflow-x: auto; font: 13.5px/1.6 var(--mono); }
footer { padding: 36px 0 48px; color: var(--muted); font-size: 13px; text-align: center; border-top: 1px solid var(--line); }

.result { padding: 56px 0; border-top: 1px solid var(--line); }
.result:first-of-type { border-top: none; padding-top: 8px; }
.result-head { display: flex; gap: 14px; align-items: center; margin-bottom: 18px; }
.result-head .badge { flex: none; }
.result-head h3 { margin: 0; font-size: 23px; }
.c4 .badge { background: var(--ink); } .c4 h3 { color: var(--ink); }
.result-intro { display: grid; grid-template-columns: 1fr 240px; gap: 40px; align-items: start; margin-bottom: 32px; }
.result-text p { font-size: 16px; line-height: 1.72; color: #3a3a3c; margin: 0 0 12px; }
.result-text p:last-child { margin-bottom: 0; }
.keynums { display: grid; gap: 12px; }
.keynums div { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; }
.keynums b { display: block; font: 600 28px/1.1 var(--serif); }
.keynums span { display: block; color: var(--muted); font-size: 13px; line-height: 1.4; margin-top: 4px; }
.c1 .keynums b { color: var(--blue); } .c2 .keynums b { color: var(--red); } .c3 .keynums b { color: var(--teal); }
.result-fig { display: grid; grid-template-columns: 3fr 2fr; gap: 32px; align-items: start; margin: 0 0 28px; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.result-fig:last-child { margin-bottom: 0; }
.result-fig img { border: none; border-radius: 4px; }
.result-fig a:hover img { opacity: .92; }
.result-fig figcaption { position: sticky; top: 24px; margin: 0; font-size: 13.5px; line-height: 1.6; color: #4a4a4e; }
.result-fig figcaption p { margin: 0 0 8px; }
.result-fig figcaption p:first-child { color: var(--ink); font-size: 14.5px; margin-bottom: 12px; }

@media (max-width: 820px) {
  .result-intro, .result-fig { grid-template-columns: 1fr; gap: 16px; }
  .result-fig figcaption { position: static; }
  .cards, .split { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stats div:nth-child(2) { border-right: none; }
  .labels { font-size: 10.5px; }
  section { padding: 48px 0; }
}