:root {
  color-scheme: light;
  --ink: #112018;
  --muted: #516258;
  --line: rgba(17, 32, 24, 0.12);
  --paper: rgba(255, 255, 255, 0.88);
  --card: rgba(255, 255, 255, 0.94);
  --accent: #0f8b6d;
  --accent-strong: #0a5f4a;
  --sand: #f4efe5;
  --shadow: 0 18px 60px rgba(17, 32, 24, 0.12);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: Georgia, "Iowan Old Style", "Palatino Linotype", serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(15, 139, 109, 0.22), transparent 34%),
    radial-gradient(circle at top right, rgba(197, 148, 47, 0.16), transparent 28%),
    linear-gradient(180deg, #f8f5ef 0%, #eef4ef 100%);
}

a {
  color: var(--accent-strong);
}

.page-shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.hero {
  display: block;
}

.hero-copy,
.hero-card,
.demo-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero-copy {
  padding: 2rem;
}

.hero-card {
  padding: 1.5rem;
}

.eyebrow,
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0 0 0.75rem;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-strong);
  background: rgba(15, 139, 109, 0.1);
}

h1,
h2 {
  margin: 0;
  line-height: 1.05;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 4.4rem);
  overflow-wrap: normal;
  word-break: normal;
  letter-spacing: 0.01em;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
}

.lede,
.hero-card p,
.demo-card header p,
.demo-card li {
  color: var(--muted);
  line-height: 1.6;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.hero-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1rem;
  border-radius: 999px;
  background: var(--sand);
  border: 1px solid var(--line);
  text-decoration: none;
  font-weight: 700;
}

.build-note {
  margin: 1rem 0 0;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.creator-card {
  margin-top: 1.1rem;
  padding: 1rem;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.74);
}

.creator-card h2 {
  margin: 0.15rem 0 0.55rem;
  font-size: clamp(1.15rem, 2.2vw, 1.55rem);
}

.creator-card p {
  margin: 0.55rem 0;
  color: var(--muted);
  line-height: 1.62;
}

.creator-links {
  margin-top: 0.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.creator-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.62rem 0.78rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--sand);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 700;
}

.hero-card ul {
  padding-left: 1.1rem;
  margin: 1rem 0 0;
}

.hero-card h2 {
  margin-top: 0.15rem;
}

.core-runtime-section {
  margin-top: 1.25rem;
}

.guide-section {
  margin-top: 1.25rem;
  padding: 1.4rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.guide-header p {
  margin: 0.7rem 0 0;
  color: var(--muted);
}

.guide-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

.guide-card {
  padding: 1rem;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.74);
}

.guide-card h3 {
  margin: 0 0 0.6rem;
  font-size: 1.05rem;
}

.guide-card p,
.guide-card li {
  color: var(--muted);
  line-height: 1.6;
}

.guide-card ol,
.guide-card ul {
  margin: 0;
  padding-left: 1.05rem;
}

.demo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 1.25rem;
}

.demo-card {
  padding: 1.4rem;
}

.demo-card header {
  margin-bottom: 1rem;
  position: relative;
  z-index: 2;
}

.demo-surface {
  margin-top: 0.75rem;
  padding: 0.35rem 0 0;
  position: relative;
  z-index: 1;
}

.demo-surface .pyodide-wrapper {
  margin-top: 0.35rem;
}

.demo-error {
  margin: 0;
  padding: 0.9rem 1rem;
  border-radius: 16px;
  border: 1px solid rgba(178, 34, 34, 0.2);
  background: rgba(178, 34, 34, 0.08);
  color: #8a1f1f;
  white-space: pre-wrap;
  word-break: break-word;
  font: 0.85rem/1.5 "SFMono-Regular", Menlo, Consolas, monospace;
}

.myst-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 1rem;
  align-items: start;
}

.code-sample {
  margin: 0;
  min-height: 100%;
  padding: 1rem;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: #173328;
  color: #edf8f1;
  font: 0.9rem/1.6 "SFMono-Regular", Menlo, Consolas, monospace;
  overflow: auto;
}

@media (max-width: 900px) {
  .hero,
  .guide-grid,
  .demo-grid,
  .myst-layout {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: clamp(2rem, 8vw, 3rem);
  }

  .page-shell {
    width: min(100% - 1rem, 1180px);
    padding-top: 1rem;
  }

  .hero-copy,
  .hero-card,
  .demo-card {
    border-radius: 22px;
  }
}