/* Shared styles for individual sample pages — paper aesthetic */
:root {
  --paper: #f5f1eb;
  --off-white: #ede8e0;
  --warm-light: #e4ddd3;
  --rule: #cdc6bb;
  --mid: #9a9088;
  --dark: #4a4540;
  --near-black: #1e1a17;
  --red: #c0392b;
  --red-dim: #922b21;
  --red-bright: #e74c3c;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--near-black);
  font-family: 'Spectral', Georgia, serif;
  font-weight: 300;
  overflow-x: hidden;
  line-height: 1.65;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1000;
  opacity: 0.5;
}

/* Nav */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.4rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s, background 0.4s;
  background: rgba(245,241,235,0.96);
  backdrop-filter: blur(8px);
  border-color: var(--rule);
}
.nav-mark {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.3rem;
  letter-spacing: 0.15em;
  color: var(--near-black);
  text-decoration: none;
}
.nav-mark span { color: var(--red); }
.nav-right { display: flex; align-items: center; gap: 1.6rem; }
.nav-link {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--mid);
  text-decoration: none;
  text-transform: uppercase;
  padding: 0.4rem 0.8rem;
  border: 1px solid transparent;
  border-radius: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.nav-link:hover { color: var(--red); border-color: var(--red); }

/* Article wrapper */
article {
  max-width: 760px;
  margin: 0 auto;
  padding: 9rem 2rem 6rem;
  position: relative;
  z-index: 2;
}
.kicker {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--mid);
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}
.kicker .accent { color: var(--red); }
h1.title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  line-height: 0.95;
  letter-spacing: 0.01em;
  color: var(--near-black);
  margin-bottom: 0.7rem;
}
.subtitle {
  font-style: italic;
  color: var(--dark);
  font-size: 1.05rem;
  margin-bottom: 2.2rem;
  padding-bottom: 1.6rem;
  border-bottom: 1px solid var(--rule);
}

/* Prose */
.prose p {
  font-size: 1.06rem;
  margin-bottom: 1.1rem;
  color: var(--near-black);
}
.prose p.lead { font-size: 1.15rem; }
.prose hr {
  border: 0;
  height: 1px;
  background: var(--rule);
  margin: 2.5rem auto;
  width: 30%;
}
.prose h2 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.6rem;
  letter-spacing: 0.08em;
  color: var(--near-black);
  margin: 2.6rem 0 1rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--rule);
}
.prose h3 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: var(--red-dim);
  text-transform: uppercase;
  margin: 1.8rem 0 0.6rem;
}
.prose pre.spec {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  line-height: 1.55;
  background: rgba(255,255,255,0.45);
  border: 1px solid var(--rule);
  border-left: 2px solid var(--red);
  padding: 1.2rem 1.4rem;
  margin: 1.2rem 0 1.6rem;
  overflow-x: auto;
  white-space: pre-wrap;
  word-wrap: break-word;
  color: var(--dark);
  border-radius: 2px;
}
.prose blockquote {
  border-left: 2px solid var(--red);
  padding-left: 1.2rem;
  margin: 1.2rem 0;
  color: var(--dark);
  font-style: italic;
}

/* Action row */
.actions {
  margin-top: 3rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--rule);
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.action {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--near-black);
  text-decoration: none;
  text-transform: uppercase;
  padding: 0.7rem 1.1rem;
  border: 1px solid var(--mid);
  border-radius: 2px;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.action:hover { color: var(--red); border-color: var(--red); background: rgba(192,57,43,0.04); }
.action .icon { font-size: 0.9rem; }

/* Footer */
footer {
  border-top: 1px solid var(--rule);
  padding: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  position: relative;
  z-index: 2;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--mid);
  text-transform: uppercase;
  max-width: 1100px;
  margin: 0 auto;
}
.footer-mark {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.1rem;
  letter-spacing: 0.15em;
  color: var(--near-black);
  text-transform: none;
}
.footer-mark span { color: var(--red); }
.footer-right { display: flex; gap: 1.6rem; flex-wrap: wrap; }
.footer-link {
  color: var(--mid);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-link:hover { color: var(--red); }

@media (max-width: 720px) {
  nav { padding: 1rem 1.2rem; }
  .nav-mark { font-size: 1.15rem; }
  .nav-link { padding: 0.3rem 0.5rem; font-size: 0.62rem; }
  article { padding: 7rem 1.2rem 4rem; }
}