:root {
  --ink: #1a1511;
  --paper: #f6efe5;
  --paper-strong: #efe3d2;
  --accent: #b64a1d;
  --accent-deep: #7f2f12;
  --line: rgba(26, 21, 17, 0.14);
  --code-bg: #201815;
  --code-ink: #f7efe7;
  --muted: #5a4b43;
  --shadow: 0 24px 60px rgba(24, 15, 10, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(182, 74, 29, 0.16), transparent 36%),
    linear-gradient(180deg, #fbf4ea 0%, #f5ede3 45%, #efe4d4 100%);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
}

body {
  margin: 0;
}

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

code,
pre {
  font-family: Consolas, "Courier New", monospace;
}

.site-shell {
  width: min(1220px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.hero,
.subpage-header {
  position: relative;
  overflow: hidden;
  margin: 1rem 0 1.5rem;
  padding: 2.5rem;
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(182, 74, 29, 0.12), rgba(255, 255, 255, 0.75)),
    rgba(255, 252, 247, 0.92);
  box-shadow: var(--shadow);
}

.hero::after,
.subpage-header::after {
  content: "";
  position: absolute;
  inset: auto -4rem -4rem auto;
  width: 13rem;
  height: 13rem;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(182, 74, 29, 0.22), transparent 70%);
}

.eyebrow {
  margin: 0 0 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-deep);
}

h1,
h2,
h3 {
  margin-top: 0;
  font-weight: 700;
  line-height: 1.05;
}

h1 {
  margin-bottom: 1rem;
  max-width: 12ch;
  font-size: clamp(2.4rem, 4vw, 4.8rem);
}

h2 {
  margin-bottom: 0.85rem;
  font-size: clamp(1.5rem, 2vw, 2.2rem);
}

h3 {
  margin-bottom: 0.6rem;
  font-size: 1.05rem;
}

.lede,
.caption,
li,
p {
  font-size: 1.05rem;
  line-height: 1.7;
}

.lede {
  max-width: 60rem;
  color: var(--muted);
}

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

.hero-nav a {
  display: inline-block;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(127, 47, 18, 0.2);
  border-radius: 999px;
  background: rgba(255, 250, 243, 0.9);
  text-decoration: none;
  font-weight: 700;
}

.panel {
  margin: 1.25rem 0;
  padding: 1.75rem;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 251, 245, 0.9);
  box-shadow: 0 16px 36px rgba(24, 15, 10, 0.08);
}

.panel-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.panel-grid > article,
.code-compare > article {
  min-width: 0;
}

.story-grid {
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.95fr);
}

.concept-grid {
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
}

.signal-list {
  margin: 0;
  padding-left: 1.2rem;
}

.signal-list li + li {
  margin-top: 0.45rem;
}

.panel-code-showcase {
  padding: 1.9rem;
}

.code-compare {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
}

pre {
  margin: 0;
  padding: 0.95rem 1rem;
  overflow-x: auto;
  border-radius: 18px;
  background: var(--code-bg);
  color: var(--code-ink);
  font-size: clamp(0.83rem, 0.79rem + 0.18vw, 0.95rem);
  line-height: 1.55;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

pre code {
  white-space: pre;
}

.callout {
  border-color: rgba(182, 74, 29, 0.24);
  background:
    linear-gradient(135deg, rgba(182, 74, 29, 0.09), rgba(255, 255, 255, 0.85)),
    rgba(255, 250, 244, 0.94);
}

.story-callout {
  display: grid;
  gap: 1rem;
}

.story-callout p {
  max-width: 62rem;
}

@media (max-width: 900px) {
  .story-grid,
  .concept-grid,
  .code-compare {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-shell {
    width: min(100% - 1rem, 100%);
    padding: 0.5rem 0 2rem;
  }

  .hero,
  .subpage-header,
  .panel {
    padding: 1.25rem;
    border-radius: 18px;
  }

  h1 {
    max-width: none;
  }

  pre {
    font-size: 0.8rem;
  }
}