:root {
  color-scheme: light;
  --bg: #f6f0e6;
  --surface: #fff9ef;
  --surface-strong: #ffffff;
  --ink: #1f2428;
  --muted: #626b72;
  --line: #d8cfc1;
  --line-strong: #9eaab2;
  --accent: #7b2532;
  --accent-2: #3f4650;
  --accent-3: #7a6a57;
  --warm: #8f5b36;
  --shadow: 0 18px 50px rgba(31, 36, 40, 0.08);
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --radius: 8px;
  --max: 1180px;
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #101214;
  --surface: #171914;
  --surface-strong: #1f2421;
  --ink: #f3efe7;
  --muted: #a9b1bd;
  --line: #303741;
  --line-strong: #46505e;
  --accent: #d7929d;
  --accent-2: #c8c1b6;
  --accent-3: #b59a78;
  --warm: #d59b6d;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.24);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--line) 32%, transparent) 1px, transparent 1px),
    linear-gradient(180deg, color-mix(in srgb, var(--line) 22%, transparent) 1px, transparent 1px),
    radial-gradient(circle at 12% 8%, color-mix(in srgb, var(--warm) 10%, transparent), transparent 28rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.36), transparent 36rem),
    var(--bg);
  background-size: 52px 52px, 52px 52px, auto, auto, auto;
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.55;
}

body.conference-page {
  overflow-x: hidden;
}

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

a {
  color: var(--accent);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent-2);
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--ink);
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.08;
}

h1 {
  font-size: clamp(3rem, 8vw, 7rem);
}

h2 {
  font-size: clamp(1.75rem, 3vw, 3rem);
}

h3 {
  font-size: 1.15rem;
}

p {
  margin: 0;
}

code,
pre {
  font-family: var(--mono);
}

pre {
  overflow-x: auto;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface-strong) 86%, var(--ink) 6%);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th,
td {
  padding: 0.65rem;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

blockquote {
  margin: 1.4rem 0;
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--accent);
  background: color-mix(in srgb, var(--surface-strong) 82%, var(--accent) 6%);
}

.skip-link {
  position: fixed;
  z-index: 100;
  left: 1rem;
  top: 1rem;
  transform: translateY(-160%);
  padding: 0.6rem 0.8rem;
  background: var(--ink);
  color: var(--bg);
  border-radius: var(--radius);
}

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

.webgl-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  width: 100vw;
  height: 100vh;
  opacity: 0.18;
  pointer-events: none;
}

.webgl-bg.is-unavailable {
  display: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 1rem;
  max-width: calc(var(--max) + 120px);
  margin: 0 auto;
  padding: 0.9rem clamp(1rem, 4vw, 2rem);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 72%, transparent);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

.brand-logo {
  width: clamp(7.2rem, 12vw, 9.5rem);
  height: auto;
  border-radius: 4px;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--line) 55%, transparent);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.35rem;
}

.site-nav a {
  padding: 0.45rem 0.65rem;
  color: var(--muted);
  border-radius: var(--radius);
  font-size: 0.92rem;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
  background: transparent;
  box-shadow: inset 0 -2px 0 var(--warm);
}

.site-nav .nav-pill {
  color: var(--ink);
  border: 1px solid var(--line);
}

.icon-button {
  display: grid;
  width: 2.4rem;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: color-mix(in srgb, var(--surface) 86%, transparent);
  color: var(--ink);
  cursor: pointer;
}

.nav-toggle {
  display: none;
}

main {
  max-width: calc(var(--max) + 120px);
  margin: 0 auto;
  padding: 1.5rem clamp(1rem, 4vw, 2rem) 4rem;
}

.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem clamp(1rem, 4vw, 2rem) 3rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer p + p {
  margin-top: 0.35rem;
}

.eyebrow {
  margin-bottom: 0.55rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-hero,
.section-band,
.section-grid,
.contact-strip {
  margin: 2.25rem 0;
}

.page-hero {
  max-width: 820px;
  padding: 3.5rem 0 1rem;
}

.page-hero p:last-child {
  max-width: 720px;
  margin-top: 1rem;
  color: var(--muted);
  font-size: 1.08rem;
}

.article-hero h1 {
  font-size: clamp(2.2rem, 5vw, 4.8rem);
}

.section-band {
  padding: clamp(1.2rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 86%, transparent);
  box-shadow: none;
}

.section-band.compact {
  box-shadow: none;
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(220px, 0.85fr) minmax(0, 1.45fr);
  gap: clamp(1.2rem, 4vw, 3rem);
  align-items: start;
}

.prose {
  color: var(--muted);
  font-size: 1.05rem;
}

.prose p + p {
  margin-top: 1rem;
}

.table-wrap {
  width: 100%;
  margin: 1.2rem 0;
  overflow-x: auto;
}

@media (max-width: 860px) {
  .site-header {
    grid-template-columns: auto 1fr auto;
  }

  .nav-toggle {
    display: grid;
    justify-self: end;
  }

  .site-nav {
    display: none;
    grid-column: 1 / -1;
    justify-content: flex-start;
    padding: 0.8rem 0;
  }

  .site-header.is-open .site-nav {
    display: flex;
  }

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

@media (max-width: 560px) {
  h1 {
    font-size: clamp(2.55rem, 16vw, 4rem);
  }

  main {
    padding-top: 0.5rem;
  }

  .page-hero {
    padding-top: 2rem;
  }
}