/* ============================================================
   GOLDEN ENCYCLOPEDIA — Design tokens & global styles
   ============================================================ */

:root {
  /* Color tokens */
  --primary: #D4AF37;
  --primary-soft: #E9C978;
  --primary-dark: #9A6F1E;
  --amber: #FFB84D;
  --cream: #F3E9D6;
  --bg: #080D10;
  --bg-deep: #05070A;
  --surface: #13161B;
  --surface-raised: #191D24;
  --surface-glass: #101419;
  --border: #3A2C12;
  --border-strong: #8A6723;
  --text-primary: #F3E9D6;
  --text-secondary: #B8AA91;
  --text-muted: #746B5B;
  --moss: #5C6B4D;
  --on-primary: #0B0D10;

  --border-subtle: rgba(212, 175, 55, 0.18);
  --border-medium: rgba(212, 175, 55, 0.32);
  --border-strong-a: rgba(212, 175, 55, 0.50);
  --surface-glass-alpha: rgba(19, 22, 27, 0.62);
  --gold-glow-soft: rgba(212, 175, 55, 0.12);
  --gold-glow-medium: rgba(212, 175, 55, 0.22);

  /* Type */
  --ff-display: "Cormorant Garamond", "Libre Baskerville", Georgia, serif;
  --ff-ui: "Inter", "Sora", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Radius */
  --r-xs: 4px;
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 24px;
  --r-full: 9999px;

  /* Spacing */
  --s-xxs: 4px;
  --s-xs: 8px;
  --s-sm: 12px;
  --s-md: 16px;
  --s-lg: 24px;
  --s-xl: 32px;
  --s-xxl: 48px;

  --max-w: 1440px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.35);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.45);
  --shadow-lg: 0 24px 80px rgba(0,0,0,0.55);
  --gold-glow: 0 0 36px rgba(212,175,55,0.08);
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; max-width: 100%; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
.article-section, .bg-hero, .faq-block, .related-block { scroll-margin-top: 96px; }
body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--ff-ui);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  min-height: 100vh;
  background-image:
    radial-gradient(1100px 700px at 78% -8%, rgba(212,175,55,0.14), transparent 55%),
    radial-gradient(900px 600px at 8% 18%, rgba(255,184,77,0.06), transparent 60%),
    linear-gradient(180deg, #080D10 0%, #06090C 60%, #05070A 100%);
  background-attachment: fixed;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

::selection { background: rgba(212,175,55,0.35); color: var(--cream); }

[hidden] { display: none !important; }

/* Focus */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}
@media (max-width: 900px) { .container { padding: 0 24px; } }
@media (max-width: 600px) { .container { padding: 0 16px; } }

/* Typography */
.h-display {
  font-family: var(--ff-display);
  font-weight: 600;
  line-height: 0.88;
  letter-spacing: -0.045em;
  font-size: clamp(4.4rem, 9vw, 9.5rem);
  margin: 0;
  color: var(--cream);
  background: linear-gradient(180deg, #FFFBEA 0%, #FFE9A8 30%, #FFCB5C 65%, #E8A82A 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-wrap: balance;
}
.h-1 {
  font-family: var(--ff-display);
  font-weight: 600;
  line-height: 0.96;
  letter-spacing: -0.035em;
  font-size: clamp(2.6rem, 5.6vw, 5rem);
  margin: 0;
  color: var(--cream);
  text-wrap: balance;
}
.h-2 {
  font-family: var(--ff-display);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-size: clamp(2rem, 4vw, 3.4rem);
  margin: 0;
  color: var(--cream);
  text-wrap: balance;
}
.h-3 {
  font-family: var(--ff-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-size: 1.55rem;
  margin: 0;
  color: var(--cream);
}
.eyebrow {
  font-family: var(--ff-ui);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--primary);
  opacity: 0.7;
}
.eyebrow.no-rule::before { display: none; }
.lede { color: var(--text-secondary); font-size: 1rem; line-height: 1.75; max-width: 48ch; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 22px;
  min-height: 48px;
  height: auto;
  max-width: 100%;
  border-radius: 4px;
  font-family: var(--ff-ui);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  transition: transform .25s ease, background .25s ease, border-color .25s ease, color .25s ease, box-shadow .25s ease;
  white-space: normal;
  text-align: center;
  overflow-wrap: anywhere;
  border: 1px solid transparent;
}
.btn .arrow { transition: transform .25s ease; display: inline-flex; }
.btn:hover .arrow { transform: translateX(4px); }
.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  box-shadow: 0 0 0 1px rgba(212,175,55,0.0), 0 8px 24px rgba(212,175,55,0.22);
}
.btn-primary:hover { background: var(--primary-soft); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(212,175,55,0.32); }
.btn-secondary {
  background: rgba(16,20,25,0.62);
  color: var(--cream);
  border-color: var(--border-medium);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.btn-secondary:hover { border-color: var(--primary); background: rgba(212,175,55,0.07); transform: translateY(-2px); }
.btn-ghost {
  height: 44px;
  padding: 0 6px;
  background: transparent;
  color: var(--primary);
  letter-spacing: 0.16em;
  border-radius: 0;
  border-bottom: 1px solid var(--border-medium);
}
.btn-ghost:hover { color: var(--primary-soft); border-color: var(--primary); }

/* Glass card */
.glass {
  background: linear-gradient(180deg, rgba(25,29,36,0.7) 0%, rgba(16,20,25,0.6) 100%);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--r-md);
}

/* Hairline + decorative */
.rule { height: 1px; background: linear-gradient(90deg, transparent, var(--border-medium), transparent); }
.tick { width: 6px; height: 6px; border-radius: 50%; background: var(--primary); display: inline-block; }

/* Section */
section { position: relative; }
.section-pad { padding-top: clamp(64px, 9vw, 144px); padding-bottom: clamp(64px, 9vw, 144px); }
.section-pad-sm { padding-top: clamp(48px, 7vw, 96px); padding-bottom: clamp(48px, 7vw, 96px); }

/* ============================================================
   SITE HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 72px;
  z-index: 80;
  display: flex;
  align-items: center;
  background: rgba(5,7,10,0.55);
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  border-bottom: 1px solid rgba(212,175,55,0.08);
  transition: background .35s ease, border-color .35s ease;
}
.site-header.scrolled {
  background: rgba(5,7,10,0.92);
  border-bottom-color: var(--border-subtle);
}
.site-header .container {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--cream);
  min-width: 0;
}
.brand-mark .brand-icon {
  width: 28px; height: 28px;
  border: 1px solid var(--primary);
  border-radius: 50%;
  display: grid; place-items: center;
  color: var(--primary);
}
.brand-mark .brand-text {
  display: flex; flex-direction: column; line-height: 1;
  min-width: 0;
}
.brand-mark .brand-text .name {
  font-family: var(--ff-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.16em;
}
.brand-mark .brand-text .sub {
  font-family: var(--ff-ui);
  font-size: 0.55rem;
  letter-spacing: 0.32em;
  color: var(--text-muted);
  margin-top: 4px;
  text-transform: uppercase;
}

.site-nav { display: flex; align-items: center; gap: 32px; justify-self: center; }
.site-nav a {
  position: relative;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  padding: 8px 2px;
  transition: color .25s ease;
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%; bottom: 0;
  height: 1px; background: var(--primary);
  transition: right .35s ease;
}
.site-nav a:hover { color: var(--cream); }
.site-nav a:hover::after { right: 0; }
.site-nav a.active { color: var(--cream); }
.site-nav a.active::after { right: 0; }

.header-right {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  justify-self: end;
  min-width: 0;
}
.icon-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-subtle);
  display: grid; place-items: center;
  color: var(--cream);
  transition: border-color .25s ease, color .25s ease, background .25s ease;
}
.icon-btn:hover { border-color: var(--primary); color: var(--primary); }

.menu-btn { display: none; }
@media (max-width: 1080px) {
  .site-nav { display: none; }
  .menu-btn { display: grid; }
  .site-header .container { grid-template-columns: 1fr auto; }
  .header-right .btn { display: none; }
}

/* Mobile drawer */
.mobile-menu {
  position: fixed; inset: 0;
  background: rgba(5,7,10,0.96);
  backdrop-filter: blur(20px);
  z-index: 90;
  padding: 96px 32px 32px;
  transform: translateY(-12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .35s ease, transform .35s ease;
}
.mobile-menu.open { opacity: 1; transform: translateY(0); pointer-events: auto; }
.mobile-menu nav { display: flex; flex-direction: column; gap: 8px; }
.mobile-menu nav a {
  font-family: var(--ff-display);
  font-size: 2rem;
  color: var(--cream);
  padding: 12px 0;
  border-bottom: 1px solid rgba(212,175,55,0.08);
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 16px;
  overflow-wrap: anywhere;
}
.mobile-menu nav a span { font-family: var(--ff-ui); font-size: 0.7rem; letter-spacing: 0.2em; color: var(--primary); }
.mobile-menu .close-btn {
  position: absolute; top: 20px; right: 20px;
  width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid var(--border-subtle); display: grid; place-items: center;
}

/* ============================================================
   SCROLL PROGRESS
   ============================================================ */
.scroll-progress {
  position: fixed; top: 0; left: 0;
  height: 2px; width: 0%;
  background: linear-gradient(90deg, var(--primary-dark), var(--primary), var(--primary-soft));
  z-index: 100;
  transition: width .1s linear;
  pointer-events: none;
}

/* ============================================================
   AMBIENT PARTICLES
   ============================================================ */
.particles {
  position: fixed; inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55;
}

/* ============================================================
   FOOTER CTA + FOOTER
   ============================================================ */
.footer-cta {
  position: relative;
  margin-top: 96px;
  background: var(--bg-deep);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  overflow: hidden;
}
.footer-cta::before { display: none; }
.footer-cta::after { display: none; }
.footer-cta .quote { color: var(--cream); }
.newsletter h4, .social-block h4 { color: var(--primary); }
.newsletter p { color: var(--text-secondary); }
.footer-cta .inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 1.4fr 0.9fr;
  gap: 56px;
  align-items: center;
  padding: 64px 0;
}
.footer-cta .quote {
  font-family: var(--ff-display);
  font-size: clamp(1.6rem, 2.6vw, 2.4rem);
  line-height: 1.15;
  color: var(--cream);
  letter-spacing: -0.01em;
}
.footer-cta .quote .small { display: block; font-size: 0.75rem; font-family: var(--ff-ui); letter-spacing: 0.32em; color: var(--primary); margin-top: 18px; text-transform: uppercase; font-weight: 700; }

.newsletter h4 { font-family: var(--ff-ui); font-weight: 700; font-size: 0.72rem; letter-spacing: 0.18em; color: var(--primary); margin: 0 0 10px; text-transform: uppercase; }
.newsletter p { color: var(--text-secondary); margin: 0 0 20px; font-size: 0.95rem; }
.newsletter form { display: flex; gap: 10px; flex-wrap: wrap; }
.newsletter input {
  flex: 1 1 200px;
  height: 48px;
  background: rgba(5,7,10,0.72);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-xs);
  padding: 0 16px;
  color: var(--cream);
  font-family: var(--ff-ui);
  font-size: 0.95rem;
  transition: border-color .25s ease;
}
.newsletter input::placeholder { color: var(--text-muted); }
.newsletter input:focus { outline: none; border-color: var(--primary); }
.newsletter .ok { font-size: 0.8rem; color: var(--primary-soft); margin-top: 12px; min-height: 1em; }

.social-block h4 { font-family: var(--ff-ui); font-weight: 700; font-size: 0.72rem; letter-spacing: 0.18em; color: var(--primary); margin: 0 0 14px; text-transform: uppercase; }
.social-icons { display: flex; gap: 10px; flex-wrap: wrap; }
.social-icons a {
  width: 44px; height: 44px;
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  display: grid; place-items: center;
  color: var(--cream);
  transition: border-color .25s ease, color .25s ease, transform .25s ease;
}
.social-icons a:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }

@media (max-width: 1000px) {
  .footer-cta .inner { grid-template-columns: 1fr; gap: 32px; padding: 48px 0; }
}

.site-footer {
  background: var(--bg-deep);
  padding: 32px 0;
}
.site-footer .inner {
  display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.site-footer .links { display: flex; gap: 28px; flex-wrap: wrap; }
.site-footer a { color: var(--text-muted); font-size: 0.78rem; letter-spacing: 0.04em; transition: color .25s ease; }
.site-footer a:hover { color: var(--cream); }
.site-footer .copy { color: var(--text-muted); font-size: 0.72rem; }

/* ============================================================
   REVEAL ON SCROLL
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .9s cubic-bezier(.2,.7,.2,1), transform .9s cubic-bezier(.2,.7,.2,1);
  will-change: opacity, transform;
}
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .scroll-progress { display: none; }
  .particles { display: none; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* Utility */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ============================================================
   SEARCH OVERLAY
   ============================================================ */
.search-overlay {
  position: fixed; inset: 0; z-index: 200;
  display: grid; place-items: start center;
  padding-top: 12vh;
  opacity: 0;
  transition: opacity .2s ease;
}
.search-overlay.open { opacity: 1; }
.search-overlay[hidden] { display: none; }
.search-scrim {
  position: absolute; inset: 0;
  background: rgba(5,7,10,0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: none;
  cursor: pointer;
}
.search-panel {
  position: relative;
  width: min(640px, 92vw);
  background: var(--bg-deep);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: translateY(-8px);
  transition: transform .2s ease;
}
.search-overlay.open .search-panel { transform: translateY(0); }
.search-bar {
  display: flex; align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-subtle);
}
.search-icn { color: var(--primary); display: grid; place-items: center; }
.search-bar input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--ff-ui);
  font-size: 1.1rem;
  color: var(--cream);
  letter-spacing: 0;
}
.search-bar input::placeholder { color: var(--text-muted); }
.search-close { color: var(--text-muted); }
.search-hint {
  padding: 14px 18px;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.search-results {
  list-style: none;
  margin: 0; padding: 6px 0;
  max-height: 56vh;
  overflow-y: auto;
}
.search-results li { margin: 0; }
.search-results li.empty {
  padding: 18px;
  color: var(--text-muted);
  font-size: 0.9rem;
}
.search-results li a {
  display: grid;
  grid-template-columns: 110px 1fr 18px;
  align-items: center;
  gap: 16px;
  padding: 12px 18px;
  color: var(--cream);
  text-decoration: none;
  transition: background .15s ease, color .15s ease;
}
.search-results li a:hover,
.search-results li.hl a {
  background: rgba(212,175,55,0.08);
  color: var(--cream);
}
.search-results .sec {
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--primary);
  font-weight: 700;
}
.search-results .ttl { font-size: 0.98rem; }
.search-results .ttl mark { background: rgba(212,175,55,0.2); color: var(--primary); padding: 0 2px; border-radius: 2px; }
.search-results .go { color: var(--text-muted); display: grid; place-items: center; }
.search-footer {
  padding: 10px 18px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.7rem;
  color: var(--text-muted);
  display: flex; align-items: center; gap: 8px;
  flex-wrap: wrap;
}
.search-footer kbd {
  font-family: var(--ff-ui);
  font-size: 0.7rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border-subtle);
  border-radius: 3px;
  padding: 1px 6px;
  margin: 0 2px;
  color: var(--text-secondary);
}
.search-footer .sep { opacity: 0.4; }

/* ============================================================
   SITEMAP PAGE
   ============================================================ */
.sm-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
}
.sm-col {
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  background: rgba(16,20,25,0.4);
  padding: 24px 24px 28px;
}
.sm-col h3 {
  font-family: var(--ff-ui);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--primary);
  margin: 0 0 18px;
}
.sm-col ul { list-style: none; margin: 0; padding: 0; }
.sm-col li {
  border-top: 1px solid rgba(212,175,55,0.08);
}
.sm-col li:first-child { border-top: none; }
.sm-col li a {
  display: block;
  padding: 12px 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: color .2s ease, padding-left .2s ease;
}
.sm-col li a:hover { color: var(--cream); padding-left: 6px; }

@media (max-width: 430px) {
  .container { padding-left: 14px; padding-right: 14px; }

  .site-header .container {
    gap: 10px;
  }

  .brand-mark {
    gap: 9px;
  }

  .brand-mark .brand-icon {
    width: 26px;
    height: 26px;
  }

  .brand-mark .brand-text .name {
    font-size: clamp(0.95rem, 5vw, 1.12rem);
    letter-spacing: 0.1em;
  }

  .brand-mark .brand-text .sub {
    font-size: 0.48rem;
    letter-spacing: 0.2em;
  }

  .header-right {
    gap: 8px;
  }

  .icon-btn,
  .mobile-menu .close-btn {
    width: 38px;
    height: 38px;
  }

  .mobile-menu {
    padding: 88px 20px 24px;
    overflow-y: auto;
  }

  .mobile-menu nav a {
    font-size: clamp(1.35rem, 8.5vw, 1.9rem);
    padding: 10px 0;
  }

  .search-overlay {
    padding: 88px 12px 12px;
    place-items: start stretch;
  }

  .search-panel {
    width: 100%;
    border-radius: var(--r-sm);
  }

  .search-bar {
    gap: 8px;
    padding: 12px;
  }

  .search-bar input {
    min-width: 0;
    font-size: 1rem;
  }

  .search-results li a {
    grid-template-columns: 1fr 18px;
    gap: 10px;
  }

  .search-results .sec {
    grid-column: 1 / -1;
  }
}