:root {
  --bg: #fbfaf6;
  --surface: #ffffff;
  --band: #f1eee7;
  --ink: #181716;
  --muted: #625d55;
  --line: #ddd6c8;
  --accent: #0f766e;
  --accent-dark: #0b4f4a;
  --accent-soft: #dff3ef;
  --paper: #fff9ec;
  --shadow-soft: 0 16px 42px rgba(24, 23, 22, 0.08);
  --max: 1180px;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

#paper,
#results,
#method,
#code,
#news,
#citation {
  scroll-margin-top: 92px;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 100;
  transform: translateY(-160%);
  background: var(--ink);
  color: white;
  padding: 0.6rem 0.85rem;
  border-radius: 999px;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(24, 23, 22, 0.08);
  background: rgba(251, 250, 246, 0.88);
  color: var(--ink);
  backdrop-filter: blur(18px);
}

.nav-wrap {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
  min-height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  font-weight: 850;
  letter-spacing: 0;
  text-decoration: none;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.25rem;
}

.nav-links a {
  color: var(--muted);
  padding: 0.42rem 0.68rem;
  border-radius: 999px;
  font-size: 0.92rem;
  text-decoration: none;
  transition: background 160ms ease, color 160ms ease;
}

.nav-links a:hover,
.nav-links a.is-active {
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.hero {
  position: relative;
  min-height: 86svh;
  display: grid;
  align-items: end;
  overflow: hidden;
  isolation: isolate;
  background: #111;
}

.hero-bg,
.hero-bg img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-bg {
  z-index: 0;
}

.hero-bg img {
  object-fit: cover;
  object-position: center;
  filter: saturate(0.95) contrast(0.98);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: rgba(12, 13, 13, 0.48);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(5.5rem, 11vw, 9rem) 0 clamp(3.5rem, 7vw, 5.5rem);
  color: #fff;
  text-shadow: 0 2px 28px rgba(0, 0, 0, 0.42);
}

.venue-lockup {
  display: inline-grid;
  gap: 0.2rem;
  margin-bottom: 1.4rem;
  padding: 0.86rem 1rem 0.95rem;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  text-shadow: none;
}

.venue-lockup span {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.venue-lockup strong {
  font-size: clamp(1.55rem, 4.4vw, 4.2rem);
  line-height: 0.92;
  letter-spacing: 0;
}

.hero h1 {
  margin: 0;
  font-size: clamp(4.9rem, 14vw, 12rem);
  line-height: 0.82;
  letter-spacing: 0;
}

.hero-subtitle {
  max-width: 930px;
  margin: 1.35rem 0 0;
  font-size: clamp(1.45rem, 4vw, 3.25rem);
  line-height: 1.04;
  font-weight: 780;
}

.authors {
  max-width: 980px;
  margin: 1.15rem 0 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(0.98rem, 1.5vw, 1.1rem);
}

.hero-copy {
  max-width: 760px;
  margin: 1.45rem 0 0;
  color: rgba(255, 255, 255, 0.92);
  font-size: clamp(1rem, 1.7vw, 1.2rem);
}

.status-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.6rem;
}

.status-row span {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.34rem 0.72rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  color: #173b37;
  font-size: 0.86rem;
  font-weight: 800;
  text-shadow: none;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  text-decoration: none;
  font-weight: 760;
  text-shadow: none;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.68);
}

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

.button.muted {
  cursor: default;
  color: rgba(255, 255, 255, 0.66);
}

.section {
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.compact-band {
  background: var(--band);
}

.section-inner {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: #b7eee5;
  font-size: 0.8rem;
  font-weight: 850;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow.dark {
  color: var(--accent);
  text-shadow: none;
}

h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 4.35rem);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: 1.18rem;
}

p {
  margin: 0;
}

.section-heading {
  max-width: 900px;
  margin-bottom: clamp(1.8rem, 4vw, 3rem);
}

.section-heading.compact {
  max-width: 780px;
}

.section-heading h2 + p,
.section-copy h2 + p,
.paper-meta p,
.citation-layout p {
  margin-top: 1rem;
}

.section-heading p,
.section-copy p,
.paper-meta p,
.citation-layout p {
  color: var(--muted);
  font-size: clamp(1.02rem, 1.4vw, 1.2rem);
}

.paper-summary {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.paper-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

.paper-meta {
  padding-top: 0.25rem;
}

.conference-mark {
  display: inline-grid;
  gap: 0.15rem;
  padding: 1rem 1.15rem;
  border: 1px solid rgba(15, 118, 110, 0.35);
  border-radius: 18px;
  background: #fff;
  color: var(--ink);
}

.conference-mark span,
.conference-mark small {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.conference-mark strong {
  font-size: clamp(1.45rem, 3vw, 2.8rem);
  line-height: 0.98;
}

.paper-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.25rem;
}

.paper-links a,
.paper-links span {
  display: inline-flex;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 0.64rem 0.82rem;
  color: var(--accent-dark);
  font-weight: 780;
  text-decoration: none;
}

.paper-links span {
  color: var(--muted);
}

.figure-frame {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.figure-frame.large {
  border-radius: 22px;
}

.figure-frame.flush {
  align-self: start;
}

.figure-frame img {
  width: 100%;
  height: auto;
}

.figure-frame figcaption {
  padding: 0.9rem 1rem 1rem;
  color: var(--muted);
  font-size: 0.94rem;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.15rem;
  border-top: 1px solid var(--line);
}

.feature-list article {
  padding-top: 1.15rem;
}

.feature-list p {
  margin-top: 0.55rem;
  color: var(--muted);
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.text-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.45rem;
}

.text-links a {
  display: inline-flex;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  padding: 0.72rem 0.92rem;
  font-weight: 760;
  text-decoration: none;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.resource-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.2rem;
  color: inherit;
  text-decoration: none;
  box-shadow: 0 10px 28px rgba(24, 23, 22, 0.05);
  transition: transform 160ms ease, border-color 160ms ease;
}

.resource-card:hover {
  transform: translateY(-2px);
  border-color: rgba(15, 118, 110, 0.45);
}

.resource-card span {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.resource-card strong,
.resource-card small {
  display: block;
}

.resource-card small {
  margin-top: 0.55rem;
  color: var(--muted);
  font-size: 0.94rem;
}

.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
  max-width: 890px;
}

.timeline li {
  display: grid;
  grid-template-columns: 7rem minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--line);
}

.timeline time {
  color: var(--accent);
  font-weight: 820;
}

.paper-citation {
  background: var(--paper);
}

.citation-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.citation-box {
  position: relative;
  background: #171614;
  color: #f7f2e9;
  border-radius: 18px;
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.citation-box pre {
  margin: 0;
  padding: 4rem 1.3rem 1.3rem;
  overflow-x: auto;
  font-size: 0.93rem;
  line-height: 1.5;
}

.copy-button {
  position: absolute;
  right: 0.9rem;
  top: 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  padding: 0.55rem 0.75rem;
  cursor: pointer;
  font: inherit;
  font-weight: 760;
}

.site-footer {
  background: #171614;
  color: rgba(255, 255, 255, 0.72);
  padding: 1.5rem 0;
}

.footer-inner {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem 1.2rem;
  align-items: center;
}

.footer-inner span {
  margin-right: auto;
}

.footer-inner a {
  color: #fff;
  text-decoration: none;
}

@media (max-width: 980px) {
  .paper-grid,
  .two-column,
  .citation-layout {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 700px) {
  #paper,
  #results,
  #method,
  #code,
  #news,
  #citation {
    scroll-margin-top: 0;
  }

  .site-header {
    position: static;
  }

  .nav-wrap {
    align-items: flex-start;
    flex-direction: column;
    padding: 0.85rem 0;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .hero {
    min-height: auto;
  }

  .hero-content {
    padding: 4.5rem 0 3rem;
  }

  .hero h1 {
    font-size: clamp(4.2rem, 24vw, 7rem);
  }

  .venue-lockup {
    width: 100%;
  }

  .cta-row {
    gap: 0.55rem;
  }

  .button {
    width: 100%;
  }

  .feature-list,
  .resource-grid {
    grid-template-columns: 1fr;
  }

  .timeline li {
    grid-template-columns: 1fr;
    gap: 0.3rem;
  }

  .figure-frame,
  .figure-frame.large,
  .citation-box {
    border-radius: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}