@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400;1,500&family=EB+Garamond:ital,wght@0,400;0,500;0,600;1,400&family=IM+Fell+English+SC&family=IM+Fell+DW+Pica:ital@0;1&display=swap');

:root {
  --bg: #f1e7cf;
  --bg-elevated: #ebe0c4;
  --bg-deep: #e3d5b3;
  --ink: #2a1f15;
  --ink-soft: #5a4a36;
  --ink-faint: #8a7858;
  --rule: #b8a275;
  --gold: #a8842c;
  --gold-deep: #7d5f1a;
  --oxblood: #7a2e2a;
  --forest: #3d4a2a;
  --indigo: #2c3a5b;
  --paper-shadow: rgba(60, 40, 15, 0.18);

  --font-display: 'Cormorant Garamond', 'EB Garamond', Georgia, serif;
  --font-body: 'EB Garamond', Georgia, 'Times New Roman', serif;
  --font-label: 'IM Fell English SC', 'Cormorant SC', Georgia, serif;
  --font-italic: 'IM Fell DW Pica', 'EB Garamond', Georgia, serif;
}

[data-mode="dark"] {
  --bg: #1a1410;
  --bg-elevated: #221a14;
  --bg-deep: #2a2018;
  --ink: #ead9b3;
  --ink-soft: #b9a47b;
  --ink-faint: #7a6a4f;
  --rule: #5a4a2e;
  --gold: #d4ad5c;
  --gold-deep: #a8842c;
  --oxblood: #b04a45;
  --forest: #7a8a5a;
  --indigo: #6a7aa0;
  --paper-shadow: rgba(0, 0, 0, 0.55);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  font-size: 18px;
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  transition: background 600ms ease, color 600ms ease;
}

/* paper grain texture */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.18  0 0 0 0 0.12  0 0 0 0 0.06  0 0 0 0.18 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.55'/></svg>");
  mix-blend-mode: multiply;
  opacity: 0.35;
}
[data-mode="dark"] body::before { mix-blend-mode: screen; opacity: 0.18; }

/* foxing edges */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background:
    radial-gradient(ellipse 600px 400px at 0% 0%, rgba(120, 80, 30, 0.10), transparent 70%),
    radial-gradient(ellipse 500px 600px at 100% 20%, rgba(140, 90, 40, 0.08), transparent 70%),
    radial-gradient(ellipse 700px 400px at 100% 100%, rgba(120, 70, 25, 0.10), transparent 70%),
    radial-gradient(ellipse 500px 500px at 0% 100%, rgba(140, 90, 40, 0.07), transparent 70%);
}
[data-mode="dark"] body::after {
  background:
    radial-gradient(ellipse 600px 400px at 0% 0%, rgba(0,0,0,0.4), transparent 70%),
    radial-gradient(ellipse 500px 600px at 100% 20%, rgba(0,0,0,0.35), transparent 70%),
    radial-gradient(ellipse 700px 400px at 100% 100%, rgba(0,0,0,0.4), transparent 70%),
    radial-gradient(ellipse 500px 500px at 0% 100%, rgba(0,0,0,0.35), transparent 70%);
}

main, header, footer, nav { position: relative; z-index: 2; }

/* ===== NAV ===== */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 56px 20px;
  border-bottom: 1px solid var(--rule);
  position: relative;
}
.site-nav::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 56px; right: 56px;
  height: 1px;
  background: var(--rule);
  opacity: 0.5;
}

.brand {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.brand .brand-mono {
  font-family: var(--font-label);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--gold-deep);
}
[data-mode="dark"] .brand .brand-mono { color: var(--gold); }

.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
  align-items: center;
}
.nav-links a {
  font-family: var(--font-label);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--ink-soft);
  text-decoration: none;
  position: relative;
  padding: 4px 0;
  transition: color 200ms;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 100%;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 300ms ease;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-links a[aria-current="page"] { color: var(--ink); }
.nav-links a[aria-current="page"]::after { transform: scaleX(1); }

.mode-toggle {
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: 0.2em;
  background: transparent;
  border: 1px solid var(--rule);
  color: var(--ink-soft);
  padding: 6px 12px;
  cursor: pointer;
  transition: all 200ms;
  margin-left: 24px;
}
.mode-toggle:hover { border-color: var(--gold); color: var(--ink); }

/* ===== FOOTER ===== */
.site-footer {
  margin-top: 120px;
  padding: 40px 56px 32px;
  border-top: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--ink-faint);
  position: relative;
}
.site-footer::before {
  content: '';
  position: absolute;
  top: -5px; left: 56px; right: 56px;
  height: 1px;
  background: var(--rule);
  opacity: 0.5;
}
.site-footer .ornament {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--gold);
  letter-spacing: 0.4em;
}

/* ===== SHARED ELEMENTS ===== */
.section-head {
  text-align: center;
  margin: 80px 0 56px;
}
.section-head .eyebrow {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--gold-deep);
  margin-bottom: 14px;
}
[data-mode="dark"] .section-head .eyebrow { color: var(--gold); }
.section-head h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 48px;
  font-style: italic;
  color: var(--ink);
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}
.section-head .ornament-rule {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  color: var(--gold);
}
.section-head .ornament-rule::before,
.section-head .ornament-rule::after {
  content: '';
  width: 80px;
  height: 1px;
  background: var(--rule);
}
.section-head .ornament-rule span {
  font-family: var(--font-display);
  font-size: 18px;
}

.dropcap {
  float: left;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 84px;
  line-height: 0.85;
  color: var(--oxblood);
  margin: 6px 12px 0 0;
  padding: 4px 6px 0 0;
  font-style: italic;
}
[data-mode="dark"] .dropcap { color: var(--gold); }

.marginalia {
  font-family: var(--font-italic);
  font-style: italic;
  font-size: 14px;
  color: var(--ink-faint);
  line-height: 1.5;
  border-left: 1px solid var(--rule);
  padding-left: 14px;
}

/* fade in */
.fade-in {
  opacity: 0;
  transform: translateY(12px);
  animation: fadeUp 900ms ease forwards;
}
@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}
.fade-in.delay-1 { animation-delay: 150ms; }
.fade-in.delay-2 { animation-delay: 300ms; }
.fade-in.delay-3 { animation-delay: 450ms; }
.fade-in.delay-4 { animation-delay: 600ms; }

/* reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 800ms ease, transform 800ms ease;
}
.reveal.in { opacity: 1; transform: translateY(0); }

/* buttons */
.btn {
  display: inline-block;
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.2em;
  padding: 14px 28px;
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--ink);
  text-decoration: none;
  cursor: pointer;
  transition: all 250ms;
}
.btn:hover { background: var(--ink); color: var(--bg); }
.btn-primary {
  background: var(--oxblood);
  border-color: var(--oxblood);
  color: #f4ecd8;
}
.btn-primary:hover { background: var(--ink); border-color: var(--ink); }

/* scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--rule); border: 2px solid var(--bg-deep); }
::-webkit-scrollbar-thumb:hover { background: var(--gold); }

/* responsive nav */
@media (max-width: 800px) {
  .site-nav { padding: 20px 24px; flex-wrap: wrap; gap: 12px; }
  .nav-links { gap: 18px; }
  .site-footer { padding: 32px 24px; flex-direction: column; gap: 14px; }
  .section-head h2 { font-size: 36px; }
  .site-footer::before { left: 24px; right: 24px; }
}