:root {
  --paper: #fbf8f2;
  --paper-soft: #f5efe4;
  --ink: #18222b;
  --muted: #68737d;
  --line: #ded7ca;
  --blue: #8fc7df;
  --blue-strong: #2f6f89;
  --mint: #d9f2df;
  --peach: #f6d8c8;
  --rose: #efb8c8;
  --card: rgba(255, 255, 255, 0.72);
  --shadow: 0 24px 70px rgba(54, 45, 35, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 8%, rgba(217, 242, 223, 0.7), transparent 28rem),
    radial-gradient(circle at 85% 0%, rgba(143, 199, 223, 0.45), transparent 26rem),
    linear-gradient(180deg, var(--paper), #fffdfa 48%, var(--paper-soft));
  color: var(--ink);
  font-family: Charter, "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1rem clamp(1rem, 4vw, 3rem);
  border-bottom: 1px solid rgba(222, 215, 202, 0.72);
  background: rgba(251, 248, 242, 0.82);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.95rem;
  font-weight: 760;
  letter-spacing: 0.08em;
}

.brand-mark {
  display: grid;
  width: 2.15rem;
  height: 2.15rem;
  place-items: center;
  border: 1px solid rgba(47, 111, 137, 0.26);
  border-radius: 999px;
  background: linear-gradient(135deg, #fefefe, var(--mint));
  color: var(--blue-strong);
}

nav {
  display: flex;
  gap: 1rem;
  color: var(--muted);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.9rem;
}

nav a:hover {
  color: var(--ink);
}

.section-shell {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.88fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  min-height: 68vh;
  align-items: center;
  padding: clamp(2.6rem, 6vw, 5.2rem) 0 3rem;
}

.eyebrow,
.section-kicker {
  margin: 0 0 0.9rem;
  color: var(--blue-strong);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 880px;
  margin-bottom: 1.15rem;
  font-size: clamp(2.55rem, 5.3vw, 5rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(1.65rem, 3vw, 2.55rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

h3 {
  margin-bottom: 0.45rem;
  font-size: 1.2rem;
}

.subtitle {
  max-width: 720px;
  color: #40505c;
  font-size: clamp(1.03rem, 1.65vw, 1.2rem);
}

.authors {
  max-width: 820px;
  margin-top: 1.8rem;
  color: #2f3841;
  font-size: 1rem;
}

.affiliations {
  color: var(--muted);
  font-size: 0.98rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-width: 7.25rem;
  justify-content: center;
  padding: 0.82rem 1.1rem;
  border: 1px solid rgba(47, 111, 137, 0.22);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
  color: var(--blue-strong);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.9rem;
  font-weight: 760;
  box-shadow: 0 12px 28px rgba(47, 111, 137, 0.08);
}

.button.primary {
  background: var(--ink);
  color: #fffdf7;
}

.hero-panel {
  position: relative;
  min-height: 470px;
  border: 1px solid rgba(222, 215, 202, 0.9);
  border-radius: 2.2rem;
  background:
    linear-gradient(140deg, rgba(255, 255, 255, 0.8), rgba(217, 242, 223, 0.45)),
    radial-gradient(circle at top right, rgba(239, 184, 200, 0.45), transparent 18rem);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-panel::before {
  position: absolute;
  inset: 1rem;
  content: "";
  border: 1px solid rgba(47, 111, 137, 0.08);
  border-radius: 1.6rem;
}

.trace-card {
  position: absolute;
  top: 3rem;
  left: 2.2rem;
  right: 2.2rem;
  padding: 1.15rem;
  border: 1px solid rgba(222, 215, 202, 0.86);
  border-radius: 1.35rem;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 18px 44px rgba(54, 45, 35, 0.1);
}

.trace-label {
  display: block;
  margin-bottom: 1rem;
  color: var(--muted);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.trace-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin: 0.75rem 0;
}

.trace-row span {
  min-width: 3.2rem;
  color: var(--muted);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.86rem;
}

.trace-row i {
  display: block;
  width: 100%;
  height: 0.82rem;
  border-radius: 999px;
  background: linear-gradient(90deg, #e8e1d5, #f6f1ea);
}

.trace-row.soft i {
  background: linear-gradient(90deg, var(--mint), #f7fbf6);
}

.trace-row.hot i {
  background: linear-gradient(90deg, var(--rose), var(--peach));
}

.audit-flow {
  position: absolute;
  right: 2.4rem;
  bottom: 2.8rem;
  left: 2.4rem;
  display: grid;
  gap: 0.8rem;
}

.audit-flow div {
  display: grid;
  grid-template-columns: 2.8rem 1fr;
  align-items: center;
  gap: 0.85rem;
  padding: 0.95rem;
  border: 1px solid rgba(47, 111, 137, 0.14);
  border-radius: 1.1rem;
  background: rgba(255, 253, 247, 0.78);
}

.audit-flow b {
  display: grid;
  width: 2.55rem;
  height: 2.55rem;
  place-items: center;
  border-radius: 999px;
  background: var(--mint);
  color: var(--blue-strong);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.audit-flow span {
  font-weight: 720;
}

.abstract,
.split,
.benchmark,
.results,
.run,
.citation,
.figure-section,
.full-figure,
.gallery {
  margin-top: 3rem;
  padding: clamp(2rem, 5vw, 3.8rem);
  border: 1px solid rgba(222, 215, 202, 0.88);
  border-radius: 2rem;
  background: var(--card);
  box-shadow: var(--shadow);
}

.abstract p {
  max-width: 940px;
  margin-bottom: 0;
  font-size: clamp(1.02rem, 1.55vw, 1.18rem);
  color: #40505c;
}

.split,
.benchmark,
.run {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.method-cards {
  display: grid;
  gap: 1rem;
}

.method-cards article {
  position: relative;
  padding: 1.35rem 1.35rem 1.25rem 4.3rem;
  border: 1px solid rgba(222, 215, 202, 0.92);
  border-radius: 1.35rem;
  background: rgba(255, 255, 255, 0.58);
}

.method-cards span {
  position: absolute;
  top: 1.25rem;
  left: 1.25rem;
  display: grid;
  width: 2.25rem;
  height: 2.25rem;
  place-items: center;
  border-radius: 999px;
  background: #e6f2f7;
  color: var(--blue-strong);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 800;
}

.method-cards p,
.benchmark p,
.figure-copy p,
.results p,
.run p {
  color: var(--muted);
}

.figure-section {
  display: grid;
  grid-template-columns: 0.45fr 0.55fr;
  gap: 2rem;
  align-items: center;
}

.figure-section.pale {
  display: block;
  background: rgba(255, 255, 255, 0.52);
}

.full-figure {
  display: block;
}

.full-figure .figure-copy {
  max-width: 840px;
  margin-bottom: 1.6rem;
}

.full-figure figure img {
  width: 100%;
}

figure {
  margin: 0;
}

figure img {
  width: 100%;
  border: 1px solid rgba(222, 215, 202, 0.95);
  border-radius: 1.2rem;
  background: #fff;
}

.full-figure figure img {
  border-radius: 1rem;
}

figcaption {
  margin-top: 0.75rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.stats-grid,
.score-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.stats-grid div,
.score-grid article {
  padding: 1.3rem;
  border: 1px solid rgba(222, 215, 202, 0.92);
  border-radius: 1.25rem;
  background: rgba(255, 255, 255, 0.58);
}

.stats-grid strong,
.score-grid strong {
  display: block;
  color: var(--blue-strong);
  font-size: 1.8rem;
  line-height: 1;
  letter-spacing: -0.04em;
}

.stats-grid span,
.score-grid small,
.score-grid span {
  display: block;
  margin-top: 0.55rem;
  color: var(--muted);
}

.score-grid {
  margin-top: 1.8rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.score-grid article {
  min-height: 9.5rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(217, 242, 223, 0.3));
}

.score-grid article > span {
  margin-top: 0;
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.84rem;
  font-weight: 780;
}

.score-grid strong {
  margin-top: 1rem;
  font-size: 2.35rem;
}

.gallery {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 1.4rem;
}

.compact-gallery {
  grid-template-columns: minmax(0, 1fr);
}

.compact-gallery figure {
  max-width: 860px;
  margin: 0 auto;
}

pre {
  margin: 0;
  padding: 1.25rem;
  overflow-x: auto;
  border: 1px solid rgba(24, 34, 43, 0.08);
  border-radius: 1.2rem;
  background: #17212a;
  color: #f7f0e4;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.88rem;
}

.citation {
  margin-bottom: 4rem;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem clamp(1rem, 4vw, 3rem);
  color: var(--muted);
  border-top: 1px solid rgba(222, 215, 202, 0.9);
}

footer span:first-child {
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 800;
  letter-spacing: 0.1em;
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.7rem;
  }

  nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.2rem;
  }

  .hero,
  .split,
  .benchmark,
  .run,
  .figure-section,
  .gallery {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-panel {
    min-height: 460px;
  }

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

@media (max-width: 560px) {
  .section-shell {
    width: min(100% - 1rem, 1120px);
  }

  .abstract,
  .split,
  .benchmark,
  .results,
  .run,
  .citation,
  .figure-section,
  .full-figure,
  .gallery {
    padding: 1.35rem;
    border-radius: 1.4rem;
  }

  .hero-panel {
    min-height: 420px;
    border-radius: 1.4rem;
  }

  .trace-card,
  .audit-flow {
    left: 1rem;
    right: 1rem;
  }

  .score-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  footer {
    flex-direction: column;
  }
}