/* 存档点 — Retro Arcade Collection */

/* ===== TOKENS ===== */
:root {
  --bg: #1a1614;
  --bg-card: #231f1c;
  --bg-elevated: #2a2520;
  --bg-input: #1e1a17;
  --fg: #f0ece4;
  --fg-dim: #8a8278;
  --fg-muted: #5a544c;
  --accent: #e8a438;
  --accent-hover: #f0b848;
  --accent-glow: rgba(232,164,56,0.15);
  --red: #d94f4f;
  --cyan: #4fd9c4;
  --border: #3a3430;
  --font-heading: 'Orbitron', 'Share Tech Mono', monospace;
  --font-mono: 'JetBrains Mono', 'Consolas', monospace;
  --font-pixel: 'Press Start 2P', monospace;
  --font-body: 'Noto Sans SC', 'JetBrains Mono', system-ui, sans-serif;
}

/* ===== RESET ===== */
*, *::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(--fg);
  line-height: 1.6;
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }

/* ===== LAYOUT ===== */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  height: 52px;
  background: rgba(26,22,20,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  display: flex; align-items: center;
  padding: 0 16px;
}
.nav-inner {
  width: 100%; max-width: 960px;
  margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-heading);
  font-size: 14px; font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer;
  display: flex; align-items: center; gap: 8px;
}
.nav-logo .logo-icon { font-size: 18px; }
.nav-links { display: flex; gap: 4px; }
.nav-link {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-dim);
  padding: 6px 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  transition: color 0.15s;
  border: none; background: none;
}
.nav-link:hover { color: var(--fg); }
.nav-link.active { color: var(--accent); }
.nav-toggle {
  display: none;
  background: none; border: none;
  color: var(--fg); font-size: 20px;
  cursor: pointer; padding: 8px;
}

/* ===== MAIN ===== */
.main {
  margin-top: 52px;
  min-height: calc(100vh - 52px);
  min-height: calc(100dvh - 52px);
}

/* ===== HERO ===== */
.hero {
  padding: 48px 16px 40px;
  text-align: center;
  position: relative;
}
.hero::after {
  content: '';
  position: absolute; bottom: 0; left: 16px; right: 16px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}
.hero-eyebrow {
  font-family: var(--font-pixel);
  font-size: 9px;
  color: var(--accent);
  letter-spacing: 3px;
  margin-bottom: 16px;
  animation: blink 1.2s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.hero-title {
  font-family: var(--font-heading);
  font-size: 36px;
  font-weight: 900;
  color: var(--fg);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 12px;
  line-height: 1.2;
}
.hero-title span {
  color: var(--accent);
  text-shadow: 0 0 30px rgba(232,164,56,0.3);
}
.hero-sub {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-dim);
  letter-spacing: 2px;
}
.hero-count {
  display: inline-flex; align-items: center; gap: 16px;
  margin-top: 24px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-muted);
  letter-spacing: 1px;
}
.hero-count strong {
  color: var(--accent);
  font-size: 20px;
  font-family: var(--font-heading);
  font-weight: 900;
}

/* ===== FILTER BAR ===== */
.filter-bar {
  padding: 16px 0;
  display: flex; align-items: center; gap: 12px;
  flex-wrap: wrap;
}
.filter-input {
  flex: 1; min-width: 180px;
  padding: 8px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 12px;
  outline: none;
  transition: border-color 0.15s;
}
.filter-input::placeholder { color: var(--fg-muted); }
.filter-input:focus { border-color: var(--accent); }
.filter-chips {
  display: flex; gap: 6px; flex-wrap: wrap;
}
.chip {
  padding: 5px 12px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg-dim);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.15s;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

/* ===== GAME CARDS ===== */
.game-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-bottom: 48px;
}
.game-card {
  display: flex;
  background: var(--bg-card);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.2s;
  overflow: hidden;
  position: relative;
}
.game-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(232,164,56,0.08);
}
.game-card:active {
  transform: scale(0.995);
}
/* Left color bar */
.game-card-bar {
  width: 4px;
  flex-shrink: 0;
  background: var(--accent);
}
.game-card-body {
  flex: 1;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}
.game-card-top {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.game-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  padding: 2px 7px;
  border: 1px solid var(--border);
  color: var(--fg-dim);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.game-tag.genre {
  color: var(--accent);
  border-color: rgba(232,164,56,0.3);
  background: var(--accent-glow);
}
.game-card-name {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: 1px;
}
.game-card-desc {
  font-size: 13px;
  color: var(--fg-dim);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.game-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}
.game-card-info {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-muted);
  letter-spacing: 1px;
}
.game-card-play {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 1px;
  display: flex; align-items: center; gap: 6px;
  transition: all 0.15s;
}
.game-card:hover .game-card-play {
  letter-spacing: 2px;
}

/* ===== PLAY PAGE ===== */
.play-top {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 0;
}
.back-btn {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-dim);
  padding: 6px 12px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.15s;
  letter-spacing: 1px;
  text-transform: uppercase;
  background: none;
}
.back-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.play-title {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* Emulator */
.emulator-wrap {
  position: relative;
  margin-bottom: 20px;
}
.emulator-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-bottom: none;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--fg-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}
.emulator-dots {
  display: flex; gap: 5px;
}
.emulator-dots span {
  width: 7px; height: 7px; border-radius: 50%;
}
.emulator-dots span:nth-child(1) { background: #e8534f; }
.emulator-dots span:nth-child(2) { background: #e8a438; }
.emulator-dots span:nth-child(3) { background: #4fd9c4; }
.emulator-status { color: var(--accent); }

.emulator-box {
  background: #000;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}
/* CRT scanlines */
.emulator-box::after {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent, transparent 2px,
    rgba(0,0,0,0.15) 2px, rgba(0,0,0,0.15) 4px
  );
  pointer-events: none;
}
.emulator-box #game {
  width: 100%; height: 100%;
}
.emulator-box:fullscreen,
.emulator-box:-webkit-full-screen {
  border: none;
  width: 100vw; height: 100vh;
  aspect-ratio: unset;
}
.emulator-box:fullscreen #game,
.emulator-box:-webkit-full-screen #game {
  object-fit: contain;
}
.emulator-box:fullscreen::after,
.emulator-box:-webkit-full-screen::after { display: none; }

/* Hide EmulatorJS built-in virtual gamepad (we use our own) */
.ejs_virtualGamepad_parent { display: none !important; }

.fs-btn {
  position: absolute; top: 8px; right: 8px;
  background: rgba(0,0,0,0.6);
  border: 1px solid var(--border);
  color: var(--fg-dim);
  width: 30px; height: 30px;
  font-size: 14px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  z-index: 10;
  opacity: 0;
  transition: all 0.15s;
}
.emulator-box:hover .fs-btn { opacity: 1; }
.fs-btn:hover { color: var(--accent); border-color: var(--accent); }

/* Game info below emulator */
.play-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-bottom: 40px;
}
.info-desc {
  font-size: 14px;
  color: var(--fg-dim);
  line-height: 1.8;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
}
.info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}
.info-cell {
  padding: 12px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
}
.info-label {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--fg-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.info-value {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fg);
  font-weight: 600;
}
.info-actions {
  display: flex; gap: 10px;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  padding: 10px 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.15s;
  border: none;
  display: flex; align-items: center; gap: 8px;
}
.btn-primary {
  background: var(--accent);
  color: var(--bg);
  font-weight: 700;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-ghost {
  background: transparent;
  color: var(--fg-dim);
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* Controls section */
.controls-section h3 {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.controls-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
}
.ctrl-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  font-size: 12px;
}
.ctrl-action {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-dim);
}
.ctrl-key {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  padding: 1px 8px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
}

/* Related games */
.related h3 {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.related-list {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 4px;
}
.related-list::-webkit-scrollbar { height: 3px; }
.related-list::-webkit-scrollbar-thumb { background: var(--border); }
.related-item {
  min-width: 140px;
  padding: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.15s;
  flex-shrink: 0;
}
.related-item:hover {
  border-color: var(--accent);
}
.related-name {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 600;
  color: var(--fg);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.related-meta {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--fg-muted);
  margin-top: 4px;
  letter-spacing: 1px;
}

/* ===== MOBILE CONTROLS ===== */
.mobile-controls {
  display: none;
  padding: 16px;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  justify-content: space-between;
  align-items: center;
}
.dpad {
  display: grid;
  grid-template-columns: repeat(3, 44px);
  grid-template-rows: repeat(3, 44px);
  gap: 3px;
}
.dpad-btn {
  width: 44px; height: 44px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--accent);
  font-size: 16px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  transition: all 0.08s;
}
.dpad-btn:active, .dpad-btn.pressed {
  background: var(--accent);
  color: var(--bg);
}
.dpad-empty {
  background: transparent; border: none;
}
.action-side {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.action-row { display: flex; gap: 12px; }
.ab-btn {
  width: 50px; height: 50px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--red);
  color: var(--red);
  font-family: var(--font-heading);
  font-size: 16px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  transition: all 0.08s;
}
.ab-btn:active, .ab-btn.pressed {
  background: var(--red);
  color: var(--bg);
}
.menu-row { display: flex; gap: 10px; }
.menu-btn {
  padding: 4px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--fg-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer;
  user-select: none;
}
.menu-btn:active, .menu-btn.pressed { background: var(--accent); color: var(--bg); }

/* ===== FOOTER ===== */
.footer {
  padding: 24px 16px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-muted);
  letter-spacing: 1px;
  border-top: 1px solid var(--border);
  margin-top: 32px;
}
.footer .note {
  margin-top: 8px;
  font-size: 9px;
  color: var(--fg-muted);
  opacity: 0.7;
}

/* ===== ANIMATIONS ===== */
.fade-in {
  animation: fadeIn 0.3s ease-out;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Card entrance stagger */
.game-card {
  animation: cardUp 0.3s ease-out backwards;
}
.game-card:nth-child(1) { animation-delay: 0s; }
.game-card:nth-child(2) { animation-delay: 0.04s; }
.game-card:nth-child(3) { animation-delay: 0.08s; }
.game-card:nth-child(4) { animation-delay: 0.12s; }
.game-card:nth-child(5) { animation-delay: 0.16s; }
.game-card:nth-child(6) { animation-delay: 0.20s; }
.game-card:nth-child(7) { animation-delay: 0.24s; }
.game-card:nth-child(8) { animation-delay: 0.28s; }
.game-card:nth-child(9) { animation-delay: 0.32s; }
.game-card:nth-child(10) { animation-delay: 0.36s; }
.game-card:nth-child(11) { animation-delay: 0.40s; }
@keyframes cardUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Empty state */
.empty-msg {
  text-align: center;
  padding: 48px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fg-muted);
  letter-spacing: 1px;
}

/* Hidden utility */
.hidden { display: none !important; }

/* ===== RESPONSIVE ===== */
@media (min-width: 640px) {
  .container { padding: 0 24px; }
  .hero { padding: 64px 24px 48px; }
  .hero-title { font-size: 48px; }
  .game-card { border-radius: 0; }
  .game-card-desc {
    -webkit-line-clamp: 3;
  }
  .info-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .controls-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 52px; left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 8px 16px;
  }
  .mobile-controls { display: flex; }
  .fs-btn { opacity: 1; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 28px; letter-spacing: 2px; }
  .hero-count { flex-direction: column; gap: 8px; }
  .game-card-desc { display: none; }
  .info-grid { grid-template-columns: 1fr 1fr; }
  .controls-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}