/* ── theme tokens ────────────────────────────── */
:root, [data-theme="light"] {
  --bg: #eceae4; --card: #f5f3ed; --ink: #1a3326; --muted: #5e7565;
  --accent: #2d6e4a; --warm: #7a6a5a; --rule: rgba(26,51,38,0.20);
  --rule-soft: rgba(26,51,38,0.10);
  --grain-blend: multiply; --grain-opacity: 0.50;
  --grain-url: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.06 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}
[data-theme="dark"] {
  --bg: #11261d; --card: #19322a; --ink: #f0ede7; --muted: #b0b8b2;
  --accent: #8ec0a8; --warm: #c4b4a4; --rule: rgba(240,237,231,0.24);
  --rule-soft: rgba(240,237,231,0.12);
  --grain-blend: overlay; --grain-opacity: 0.40;
  --grain-url: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.05 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* ── reset ───────────────────────────────────── */
* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0; background: var(--bg); color: var(--ink);
  font-family: 'Libre Franklin', system-ui, sans-serif; font-weight: 300;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  transition: background 350ms ease, color 350ms ease;
}
body {
  min-height: 100vh; min-height: 100dvh; display: flex; flex-direction: column;
  padding: 1.5rem 3rem 1.5rem; position: relative; overflow-x: hidden;
}
body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none;
  background-image: var(--grain-url); opacity: var(--grain-opacity);
  mix-blend-mode: var(--grain-blend); z-index: 0;
}

/* ── frame ───────────────────────────────────── */
.frame {
  width: 100%; max-width: 1680px; margin: 0 auto; flex: 1;
  display: flex; flex-direction: column; position: relative; z-index: 1;
}

/* ── header ──────────────────────────────────── */
.meta {
  display: flex; justify-content: space-between; align-items: center;
  font-family: 'JetBrains Mono', monospace; font-weight: 400;
  text-transform: uppercase; letter-spacing: 0.14em; color: var(--muted);
  padding-bottom: 0.65rem; border-bottom: 1px solid var(--rule);
}
.meta-left { display: flex; align-items: flex-end; gap: 2rem; }
.meta-right { display: flex; align-items: center; gap: 0.5rem; }
.site-name { display: inline-flex; text-decoration: none; }
.site-logo { height: 3.0rem; width: auto; display: block; transition: opacity 200ms; }
.site-name:hover .site-logo { opacity: 0.6; }
[data-theme="dark"] .site-logo { filter: invert(1); }
.nav-links { display: flex; gap: 1.5rem; }
.nav-link {
  font-size: 0.85rem; color: var(--muted); text-decoration: none;
  transition: color 200ms; padding: 0.5rem 0;
}
.nav-link:hover { color: var(--ink); }
.nav-link.active { color: var(--ink); }

/* ── theme toggle ────────────────────────────── */
.theme-toggle {
  background: none; border: 1px solid var(--rule); border-radius: 6px;
  min-width: 2.75rem; min-height: 2.75rem; padding: 0; cursor: pointer;
  color: var(--muted); display: inline-flex; align-items: center;
  justify-content: center; transition: color 200ms, border-color 200ms;
}
.theme-toggle:hover { color: var(--ink); border-color: var(--ink); }
.theme-toggle svg { width: 1rem; height: 1rem; }
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun  { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* ── hamburger menu ──────────────────────────── */
.menu-toggle {
  display: none;
  background: none; border: 1px solid var(--rule); border-radius: 6px;
  min-width: 2.75rem; min-height: 2.75rem; padding: 0; cursor: pointer;
  color: var(--muted); align-items: center; justify-content: center;
  transition: color 200ms, border-color 200ms;
}
.menu-toggle:hover { color: var(--ink); border-color: var(--ink); }
.menu-toggle svg { width: 1rem; height: 1rem; }
.menu-toggle .icon-close { display: none; }
.menu-toggle.open .icon-bars { display: none; }
.menu-toggle.open .icon-close { display: block; }

.mobile-nav {
  display: none; flex-direction: column; gap: 0;
  border-bottom: 1px solid var(--rule);
}
.mobile-nav .nav-link {
  display: block; padding: 0.75rem 0;
  border-top: 1px solid var(--rule-soft);
  font-size: 0.85rem;
}

/* ── hero (subpages) ─────────────────────────── */
.hero { padding: 1.75rem 0 1.25rem; }
.page-title {
  font-family: 'Fraunces', Georgia, serif; font-weight: 400;
  font-variation-settings: "opsz" 144, "SOFT" 30;
  font-size: clamp(2.8rem, 8vw, 5.5rem); line-height: 0.95;
  letter-spacing: -0.03em; color: var(--ink); margin: 0;
}
.page-title .em {
  font-style: italic; font-weight: 300;
  font-variation-settings: "opsz" 144, "SOFT" 100;
}
.subtitle {
  margin: 1.0rem 0 0; font-size: 1.4rem; font-weight: 300;
  color: var(--ink); line-height: 1.55; max-width: 52ch;
}
.subtitle em {
  font-family: 'Fraunces', Georgia, serif; font-style: italic; font-weight: 400;
}

/* ── content ─────────────────────────────────── */
.content { padding: 2rem 0; border-top: 1px solid var(--rule-soft); }
.coming-soon {
  font-family: 'JetBrains Mono', monospace; font-size: 0.93rem;
  color: var(--muted); text-transform: uppercase; letter-spacing: 0.14em;
}

/* ── footer ──────────────────────────────────── */
.foot { padding-top: 1.25rem; }
.foot-inner {
  display: flex; justify-content: space-between; align-items: baseline;
  flex-wrap: wrap; gap: 0.35rem 1rem;
  font-family: 'JetBrains Mono', monospace; font-size: 0.85rem;
  text-transform: uppercase; letter-spacing: 0.14em; color: var(--muted);
  padding-top: 0.65rem; border-top: 1px solid var(--rule);
}
.foot a {
  color: var(--ink); text-decoration: none; border-bottom: none;
  padding: 0.75rem 0; margin: -0.75rem 0; transition: color 200ms;
}
.foot a:hover { color: var(--accent); }

/* ── entrance animation ──────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
.reveal {
  opacity: 0;
  animation: fadeUp 650ms ease-out forwards;
}
.reveal-d1 { animation-delay: 80ms; }
.reveal-d2 { animation-delay: 220ms; }
.reveal-d3 { animation-delay: 400ms; }
.reveal-d4 { animation-delay: 520ms; }
.reveal-d5 { animation-delay: 680ms; }

@media (prefers-reduced-motion: reduce) {
  .reveal { animation: none; opacity: 1; }
}

/* ── responsive ──────────────────────────────── */
@media (max-width: 640px) {
  body { padding: 1.25rem 1.25rem 1rem; }
  .hero { padding: 1.25rem 0 1rem; }
  .meta, .foot-inner { font-size: 0.72rem; letter-spacing: 0.10em; }
  .nav-links { display: none; }
  .menu-toggle { display: inline-flex; }
  .mobile-nav.open { display: flex; }
  .site-logo { height: 2.2rem; }
  .meta-left { gap: 1rem; }
}