:root {
  --pc98-bg: #0a0e1a;
  --pc98-deep: #06080f;
  --pc98-panel: #10182c;
  --pc98-border: #2a3a5c;
  --pc98-text: #c8d6f0;
  --pc98-dim: #5a6c90;
  --pc98-cyan: #3d9fff;
  --pc98-green: #3dff88;
  --pc98-amber: #ffb03d;
  --pc98-red: #ff4d5e;
  --pixel-font: 'Courier New', 'MS Gothic', monospace;
}

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

html, body { height: 100%; }

body {
  background: var(--pc98-bg);
  color: var(--pc98-text);
  font-family: var(--pixel-font);
  font-size: 14px;
  line-height: 1.6;
  overflow-x: hidden;
}

.crt-overlay {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 999;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255,255,255,0.02) 0px,
    rgba(255,255,255,0.02) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode: overlay;
}

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px;
  background: linear-gradient(to bottom, var(--pc98-deep), var(--pc98-panel));
  border-bottom: 2px solid var(--pc98-border);
  position: sticky; top: 0; z-index: 100;
}

.logo h1 {
  font-size: 22px; letter-spacing: 2px; color: #fff;
  text-shadow: 0 0 8px rgba(61,159,255,0.5);
}
.logo h1 small { font-size: 13px; color: var(--pc98-dim); margin-left: 8px; }
.logo-ja { font-size: 12px; color: var(--pc98-cyan); letter-spacing: 4px; }
.subtitle { font-size: 11px; color: var(--pc98-dim); }

.nav { display: flex; gap: 6px; flex-wrap: wrap; }
.nav a {
  color: var(--pc98-text); text-decoration: none;
  padding: 6px 14px; border: 1px solid var(--pc98-border);
  border-radius: 2px; font-size: 13px;
  transition: all 0.2s;
}
.nav a:hover, .nav a.active {
  background: var(--pc98-cyan); color: #06101f;
  border-color: var(--pc98-cyan);
  box-shadow: 0 0 12px rgba(61,159,255,0.4);
}

main { max-width: 1100px; margin: 0 auto; padding: 24px 20px 60px; }

.intro {
  margin-bottom: 24px; padding: 12px 16px;
  border-left: 3px solid var(--pc98-cyan);
  background: rgba(16,24,44,0.6);
  font-size: 13px; color: var(--pc98-dim);
}
.intro b { color: var(--pc98-text); }

.game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 18px;
}

.game-card {
  background: linear-gradient(160deg, #121a30, #0a0e1a);
  border: 1px solid var(--pc98-border);
  border-radius: 4px;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  display: flex; flex-direction: column;
}
.game-card:hover {
  transform: translateY(-3px);
  border-color: var(--pc98-cyan);
  box-shadow: 0 8px 30px rgba(61,159,255,0.25);
}

.game-cover {
  position: relative;
  height: 190px;
  background: #06080f;
  overflow: hidden;
}
.game-cover img {
  width: 100%; height: 100%; object-fit: cover;
  image-rendering: auto;
}
.game-cover .th-num {
  position: absolute; top: 8px; left: 8px;
  background: rgba(6,8,15,0.85);
  border: 1px solid var(--pc98-cyan);
  color: var(--pc98-cyan);
  padding: 2px 8px; font-size: 12px; font-weight: bold;
  letter-spacing: 1px;
}
.game-cover .year {
  position: absolute; bottom: 8px; right: 8px;
  background: rgba(6,8,15,0.85);
  color: var(--pc98-dim);
  padding: 2px 8px; font-size: 11px;
}

.game-body { padding: 12px 14px 14px; flex: 1; display: flex; flex-direction: column; }
.game-title { font-size: 17px; color: #fff; letter-spacing: 1px; }
.game-title-ja { font-size: 12px; color: var(--pc98-cyan); margin-top: 2px; }
.game-desc {
  font-size: 12px; color: var(--pc98-dim);
  margin: 8px 0 12px; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}

.game-actions { display: flex; gap: 8px; }
.btn {
  flex: 1;
  padding: 8px 0;
  background: transparent;
  border: 1px solid var(--pc98-border);
  color: var(--pc98-text);
  font-family: var(--pixel-font);
  font-size: 13px;
  cursor: pointer;
  border-radius: 2px;
  transition: all 0.2s;
}
.btn:hover { border-color: var(--pc98-cyan); color: #fff; }
.btn-gold:hover { border-color: var(--pc98-amber); color: var(--pc98-amber); box-shadow: 0 0 10px rgba(255,176,61,0.3); }
.btn-green:hover { border-color: var(--pc98-green); color: var(--pc98-green); box-shadow: 0 0 10px rgba(61,255,136,0.3); }

.footer {
  text-align: center; padding: 20px;
  border-top: 1px solid var(--pc98-border);
  color: var(--pc98-dim); font-size: 11px;
}

.player-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: var(--pc98-deep);
  display: flex; flex-direction: column;
}
.player-overlay.hidden { display: none; }

.player-head {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px;
  background: var(--pc98-panel);
  border-bottom: 1px solid var(--pc98-border);
}
.player-title { flex: 1; font-size: 15px; color: #fff; text-align: center; }
.player-actions { display: flex; gap: 6px; }
.player-actions .btn { flex: none; padding: 6px 14px; font-size: 12px; }

.emulator-area {
  flex: 1;
  display: flex; align-items: center; justify-content: center;
  background: #000;
  position: relative;
}
#emulator-canvas {
  width: 100%;
  max-width: 960px;
  image-rendering: pixelated;
  aspect-ratio: 8/5;
  background: #000;
  cursor: crosshair;
}
.boot-hint {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--pc98-cyan);
  font-size: 16px; letter-spacing: 2px;
  animation: blink 1.2s infinite;
}
.boot-hint.hidden { display: none; }
@keyframes blink { 50% { opacity: 0.3; } }

.touchpad {
  position: fixed; bottom: 10px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 24px; align-items: flex-end;
  z-index: 250;
  padding: 10px 16px;
  background: rgba(6,8,15,0.9);
  border: 1px solid var(--pc98-border);
  border-radius: 6px;
  touch-action: none;
  user-select: none;
}
.touchpad.hidden { display: none; }

.tp-btn {
  width: 56px; height: 56px; border-radius: 50%;
  background: rgba(61,159,255,0.15);
  border: 2px solid var(--pc98-cyan);
  color: #fff; font-size: 22px;
  display: flex; align-items: center; justify-content: center;
  touch-action: none;
}
.tp-btn:active { background: rgba(61,159,255,0.4); }
.tp-btn.small { width: 44px; height: 44px; font-size: 16px; }

.tp-dpad {
  display: grid;
  grid-template-columns: repeat(3, 46px);
  grid-template-rows: repeat(3, 46px);
  gap: 2px;
}
.tp-dpad button {
  background: rgba(61,159,255,0.1);
  border: 1px solid var(--pc98-border);
  color: #fff; font-size: 16px;
  border-radius: 4px;
  touch-action: none;
}
.tp-dpad button:active { background: rgba(61,159,255,0.35); }
.tp-dpad .blank { visibility: hidden; }

.modal {
  position: fixed; inset: 0; z-index: 300;
  background: rgba(0,0,0,0.7);
  display: flex; align-items: center; justify-content: center;
}
.modal.hidden { display: none; }
.modal-box {
  background: var(--pc98-panel);
  border: 1px solid var(--pc98-cyan);
  border-radius: 4px;
  padding: 20px 26px;
  max-width: 460px; width: 90%;
  box-shadow: 0 0 40px rgba(61,159,255,0.3);
}
.modal-box h3 { color: var(--pc98-cyan); margin-bottom: 12px; font-size: 16px; }
.modal-box table { width: 100%; border-collapse: collapse; margin-bottom: 14px; }
.modal-box td { padding: 5px 8px; border-bottom: 1px solid rgba(42,58,92,0.4); font-size: 13px; }
.modal-box td:first-child { color: var(--pc98-amber); width: 45%; }
.modal-box .btn { display: block; margin-left: auto; padding: 7px 24px; }

@media (max-width: 720px) {
  .topbar { flex-direction: column; gap: 10px; }
  .game-grid { grid-template-columns: 1fr; }
  .game-cover { height: 150px; }
  .player-head { flex-wrap: wrap; }
  .player-actions .btn { font-size: 11px; padding: 5px 9px; }
}