@import url('https://fonts.googleapis.com/css2?family=Cinzel+Decorative:wght@400;700;900&family=Cinzel:wght@400;600;700&family=Crimson+Pro:ital,wght@0,300;0,400;0,600;1,300;1,400&display=swap');

/* ─── ROOT VARIABLES ─────────────────────────────── */
:root {
  --parchment:       #f5ead0;
  --parchment-dark:  #e8d5a8;
  --parchment-deep:  #d4b87a;
  --ink:             #2a1f0e;
  --ink-mid:         #4a3520;
  --ink-light:       #6b4c2a;
  --gold:            #c9a84c;
  --gold-bright:     #f0c843;
  --gold-dim:        #8a6d2a;
  --triforce:        #f5c842;
  --emerald:         #2d6b3a;
  --emerald-light:   #4a9e5c;
  --ruby:            #7a2020;
  --sapphire:        #1a3a6b;
  --shadow:          rgba(42, 31, 14, 0.15);
  --shadow-strong:   rgba(42, 31, 14, 0.35);

  --tier1: #c9a84c;
  --tier2: #7a9e6a;
  --tier3: #5a8ab0;
  --tier4: #8a6aaa;
  --tier5: #aa7a4a;
  --tier6: #7a7a7a;

  --radius: 8px;
  --radius-lg: 16px;
  --transition: 0.3s ease;
}

/* ─── RESET & BASE ───────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Crimson Pro', serif;
  background-color: #1a1208;
  color: var(--ink);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ─── BACKGROUND TEXTURE ─────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(201,168,76,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(42,31,14,0.6) 0%, transparent 60%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

/* ─── HEADER ─────────────────────────────────────── */
#site-header {
  position: relative;
  text-align: center;
  padding: 60px 20px 40px;
  background: linear-gradient(180deg, #0d0a05 0%, #1a1208 100%);
  border-bottom: 2px solid var(--gold-dim);
  overflow: hidden;
}

#site-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(201,168,76,0.18) 0%, transparent 65%);
  pointer-events: none;
}

.triforce-glyph {
  display: flex;
  justify-content: center;
  margin-bottom: 16px;
  gap: 0;
}

.triforce-glyph svg {
  width: 72px;
  height: 64px;
  filter: drop-shadow(0 0 12px rgba(245,200,66,0.5));
  animation: triforce-pulse 3s ease-in-out infinite;
}

@keyframes triforce-pulse {
  0%, 100% { filter: drop-shadow(0 0 10px rgba(245,200,66,0.4)); }
  50%       { filter: drop-shadow(0 0 22px rgba(245,200,66,0.75)); }
}

h1.site-title {
  font-family: 'Cinzel Decorative', serif;
  font-size: clamp(1.6rem, 5vw, 3.2rem);
  font-weight: 900;
  color: var(--gold-bright);
  letter-spacing: 0.04em;
  text-shadow: 0 0 30px rgba(245,200,66,0.3), 2px 2px 0 rgba(0,0,0,0.8);
  line-height: 1.2;
  margin-bottom: 8px;
}

.site-subtitle {
  font-family: 'Cinzel', serif;
  font-size: clamp(0.75rem, 2vw, 1rem);
  color: var(--parchment-deep);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.85;
}

.back-link {
  display: inline-block;
  margin-top: 20px;
  padding: 10px 20px;
  background: rgba(201, 168, 76, 0.15);
  color: var(--gold);
  border: 1px solid rgba(201, 168, 76, 0.3);
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 0.95rem;
  cursor: pointer;
  position: relative;
  z-index: 10;
}

.back-link:hover {
  background: rgba(201, 168, 76, 0.25);
  border-color: var(--gold);
  transform: translateX(-3px);
  box-shadow: 0 4px 12px rgba(201, 168, 76, 0.15);
}

/* ─── NAV TABS ───────────────────────────────────── */
#tab-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 10, 5, 0.96);
  border-bottom: 1px solid var(--gold-dim);
  backdrop-filter: blur(8px);
  display: flex;
  justify-content: center;
  gap: 0;
  padding: 0 16px;
  flex-wrap: wrap;
}

.tab-btn {
  font-family: 'Cinzel', serif;
  font-size: clamp(0.65rem, 1.8vw, 0.85rem);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--parchment-deep);
  background: none;
  border: none;
  padding: 16px clamp(12px, 2.5vw, 28px);
  cursor: pointer;
  position: relative;
  transition: color var(--transition);
  white-space: nowrap;
}

.tab-btn::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gold-bright);
  transform: scaleX(0);
  transition: transform var(--transition);
}

.tab-btn:hover { color: var(--gold-bright); }
.tab-btn.active { color: var(--gold-bright); }
.tab-btn.active::after { transform: scaleX(1); }

/* ─── MAIN CONTENT ───────────────────────────────── */
#main-content {
  position: relative;
  z-index: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 clamp(12px, 3vw, 40px) 80px;
}

.section-panel {
  display: none;
  animation: fadeIn 0.4s ease;
}
.section-panel.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── SECTION HEADER ─────────────────────────────── */
.section-header {
  padding: 40px 0 28px;
  border-bottom: 1px solid rgba(201,168,76,0.3);
  margin-bottom: 36px;
}

.section-header h2 {
  font-family: 'Cinzel Decorative', serif;
  font-size: clamp(1.1rem, 3.5vw, 2rem);
  color: var(--gold-bright);
  text-shadow: 0 0 20px rgba(245,200,66,0.25);
  margin-bottom: 8px;
}

.section-header p {
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  color: var(--parchment-deep);
  font-style: italic;
  line-height: 1.6;
}

/* ─── TIER HEADERS ───────────────────────────────── */
.tier-group { margin-bottom: 48px; }

.tier-label {
  font-family: 'Cinzel', serif;
  font-size: clamp(0.7rem, 1.5vw, 0.9rem);
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 24px;
}

.tier-label.tier1 { background: rgba(201,168,76,0.15); color: var(--tier1); border: 1px solid rgba(201,168,76,0.3); }
.tier-label.tier2 { background: rgba(122,158,106,0.15); color: var(--tier2); border: 1px solid rgba(122,158,106,0.3); }
.tier-label.tier3 { background: rgba(90,138,176,0.15); color: var(--tier3); border: 1px solid rgba(90,138,176,0.3); }
.tier-label.tier4 { background: rgba(138,106,170,0.15); color: var(--tier4); border: 1px solid rgba(138,106,170,0.3); }
.tier-label.tier5 { background: rgba(170,122,74,0.15); color: var(--tier5); border: 1px solid rgba(170,122,74,0.3); }
.tier-label.tier6 { background: rgba(122,122,122,0.15); color: var(--tier6); border: 1px solid rgba(122,122,122,0.3); }

/* ─── GAME GRID ──────────────────────────────────── */
.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(340px, 100%), 1fr));
  gap: 20px;
  align-items: start;
}

/* ─── GAME CARD ──────────────────────────────────── */
.game-card {
  background: linear-gradient(145deg, #2a1f0e 0%, #1e160a 100%);
  border: 1px solid rgba(201,168,76,0.2);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  position: relative;
}

.game-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  opacity: 0;
  transition: opacity var(--transition);
}
.game-card.tier1::before { background: linear-gradient(90deg, transparent, var(--tier1), transparent); }
.game-card.tier2::before { background: linear-gradient(90deg, transparent, var(--tier2), transparent); }
.game-card.tier3::before { background: linear-gradient(90deg, transparent, var(--tier3), transparent); }
.game-card.tier4::before { background: linear-gradient(90deg, transparent, var(--tier4), transparent); }
.game-card.tier5::before { background: linear-gradient(90deg, transparent, var(--tier5), transparent); }
.game-card.tier6::before { background: linear-gradient(90deg, transparent, var(--tier6), transparent); }

.game-card:hover {
  transform: translateY(-3px);
  border-color: rgba(201,168,76,0.5);
  box-shadow: 0 8px 32px rgba(0,0,0,0.5), 0 0 16px rgba(201,168,76,0.08);
}
.game-card:hover::before { opacity: 1; }

/* Card Summary (always visible) */
.card-summary {
  padding: 20px;
  cursor: pointer;
  user-select: none;
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 10px;
}

.card-year-badge {
  font-family: 'Cinzel', serif;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--gold-dim);
  letter-spacing: 0.1em;
  white-space: nowrap;
  padding-top: 3px;
}

.card-pc-badge {
  font-size: 0.8rem;
  white-space: nowrap;
  flex-shrink: 0;
}

.card-title {
  font-family: 'Cinzel', serif;
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 700;
  color: var(--parchment);
  line-height: 1.3;
  margin-bottom: 4px;
}

.card-platform-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.emulator-tag {
  font-family: 'Cinzel', serif;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 3px;
  background: rgba(201,168,76,0.1);
  color: var(--gold);
  border: 1px solid rgba(201,168,76,0.2);
}

.card-desc {
  font-size: clamp(0.9rem, 1.8vw, 1rem);
  color: var(--parchment-dark);
  line-height: 1.6;
  font-style: italic;
}

.card-expand-hint {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  font-family: 'Cinzel', serif;
  font-size: 0.65rem;
  color: var(--gold-dim);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color var(--transition);
}
.card-expand-hint svg {
  width: 12px; height: 12px;
  transition: transform var(--transition);
  flex-shrink: 0;
}
.game-card:hover .card-expand-hint { color: var(--gold); }
.game-card.expanded .card-expand-hint svg { transform: rotate(180deg); }
.game-card.expanded .card-expand-hint::after { content: 'Collapse'; }
.game-card:not(.expanded) .card-expand-hint::after { content: 'Expand Details'; }

/* Card Details (revealed on expand) */
.card-details {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.game-card.expanded .card-details {
  max-height: 800px;
}

.card-details-inner {
  padding: 0 20px 20px;
  border-top: 1px solid rgba(201,168,76,0.15);
  padding-top: 16px;
}

.detail-row {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 8px;
  margin-bottom: 10px;
  align-items: baseline;
}

.detail-label {
  font-family: 'Cinzel', serif;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-dim);
}

.detail-value {
  font-size: 0.92rem;
  color: var(--parchment-dark);
  line-height: 1.5;
}

.detail-value.pc-great { color: #7db87d; }
.detail-value.pc-try   { color: #d4a84c; }
.detail-value.pc-no    { color: #b87d7d; }

.detail-divider {
  height: 1px;
  background: rgba(201,168,76,0.1);
  margin: 12px 0;
}

.detail-block { margin-bottom: 12px; }
.detail-block .detail-label { display: block; margin-bottom: 4px; }
.detail-block .detail-value { display: block; }

.connects-to-box {
  background: rgba(201,168,76,0.06);
  border: 1px solid rgba(201,168,76,0.15);
  border-left: 3px solid var(--gold);
  border-radius: 4px;
  padding: 10px 12px;
  margin-top: 12px;
  font-size: 0.9rem;
  color: var(--parchment-dark);
  line-height: 1.5;
}

.connects-to-box strong {
  font-family: 'Cinzel', serif;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  display: block;
  margin-bottom: 4px;
}

/* ─── TIMELINE CONNECTOR ─────────────────────────── */
.timeline-connector {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 36px;
  position: relative;
  margin: 4px 0;
}

.timeline-connector::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0; bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, rgba(201,168,76,0.4), rgba(201,168,76,0.1));
}

.timeline-arrow {
  width: 20px; height: 20px;
  background: var(--gold-dim);
  clip-path: polygon(50% 0%, 0% 40%, 35% 40%, 35% 100%, 65% 100%, 65% 40%, 100% 40%);
  position: relative;
  z-index: 1;
  opacity: 0.7;
}

/* ─── RELEASE ORDER SECTION ──────────────────────── */
.release-year-group { margin-bottom: 32px; }

.release-year-label {
  font-family: 'Cinzel Decorative', serif;
  font-size: clamp(1.1rem, 3vw, 1.6rem);
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(201,168,76,0.2);
  display: flex;
  align-items: center;
  gap: 12px;
}

.release-year-label::before {
  content: '';
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--gold);
  border-radius: 50%;
  flex-shrink: 0;
}

.release-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Compact release cards */
.release-card {
  background: linear-gradient(145deg, #2a1f0e 0%, #1e160a 100%);
  border: 1px solid rgba(201,168,76,0.18);
  border-radius: var(--radius);
  padding: 16px 20px;
  cursor: pointer;
  transition: border-color var(--transition), transform var(--transition);
  position: relative;
  overflow: hidden;
}

.release-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
}

.release-card.tier1::before { background: var(--tier1); }
.release-card.tier2::before { background: var(--tier2); }
.release-card.tier3::before { background: var(--tier3); }
.release-card.tier4::before { background: var(--tier4); }
.release-card.tier5::before { background: var(--tier5); }
.release-card.tier6::before { background: var(--tier6); }
.release-card.original-flag::before { background: var(--ink-light); }

.release-card:hover {
  border-color: rgba(201,168,76,0.4);
  transform: translateX(3px);
}

.release-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  flex-wrap: wrap;
}

.release-card-title {
  font-family: 'Cinzel', serif;
  font-size: clamp(0.9rem, 2vw, 1.05rem);
  font-weight: 600;
  color: var(--parchment);
}

.release-card-meta {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 6px;
}

.original-note {
  font-size: 0.75rem;
  color: var(--ink-light);
  font-style: italic;
  margin-top: 4px;
}

/* ─── CHRONOLOGICAL SECTION ──────────────────────── */
.branch-group { margin-bottom: 56px; }

.branch-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  padding: 14px 20px;
  border-radius: var(--radius);
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.05);
}

.branch-dot {
  width: 14px; height: 14px;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 10px currentColor;
}

.branch-name {
  font-family: 'Cinzel', serif;
  font-size: clamp(0.85rem, 2vw, 1.1rem);
  font-weight: 700;
  color: var(--parchment);
  letter-spacing: 0.05em;
}

.branch-games {
  position: relative;
  padding-left: clamp(20px, 4vw, 40px);
}

.branch-games::before {
  content: '';
  position: absolute;
  left: 6px; top: 0; bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--branch-color, rgba(201,168,76,0.4)), transparent);
}

.chrono-card {
  position: relative;
  margin-bottom: 16px;
}

.chrono-card::before {
  content: '';
  position: absolute;
  left: calc(-1 * clamp(20px, 4vw, 40px) + 2px);
  top: 20px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--branch-color, var(--gold));
  box-shadow: 0 0 8px var(--branch-color, var(--gold));
  z-index: 1;
}

.chrono-note {
  background: rgba(201,168,76,0.06);
  border-radius: 4px;
  padding: 8px 12px;
  font-size: 0.88rem;
  color: var(--parchment-deep);
  font-style: italic;
  margin-top: 6px;
  line-height: 1.5;
}

/* ─── RESPONSIVE ─────────────────────────────────── */
@media (max-width: 640px) {
  .detail-row {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .card-top { flex-wrap: wrap; }

  .branch-games { padding-left: 24px; }

  #tab-nav { gap: 0; }
  .tab-btn { padding: 12px 10px; font-size: 0.6rem; }
}

@media (min-width: 900px) {
  .games-grid {
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  }
}

@media (min-width: 1200px) {
  .games-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ─── SCROLLBAR ──────────────────────────────────── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #0d0a05; }
::-webkit-scrollbar-thumb { background: var(--gold-dim); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold); }

/* ─── SELECTION ──────────────────────────────────── */
::selection { background: rgba(201,168,76,0.3); color: var(--parchment); }

/* ─── 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;
}