/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-1: #0a0a1a;
  --bg-2: #16213e;
  --bg-3: #1a1a3e;
  --glass: rgba(255,255,255,0.06);
  --glass-hover: rgba(255,255,255,0.12);
  --border: rgba(255,255,255,0.12);
  --text: #e8e8f0;
  --text-dim: #9999b0;
  --accent: #6c5ce7;
  --accent-teal: #00cec9;
  --accent-pink: #fd79a8;
  --accent-gold: #fdcb6e;
  --accent-green: #00b894;
  --radius: 16px;
  --shadow: 0 8px 32px rgba(0,0,0,0.3);
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--text);
  background: var(--bg-1);
  overflow-x: hidden;
}

body {
  background: linear-gradient(135deg, var(--bg-1) 0%, var(--bg-2) 50%, var(--bg-3) 100%);
  background-attachment: fixed;
  min-height: 100vh;
}

/* ===== Hub ===== */
#hub {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 60px;
}

.hub-header {
  text-align: center;
  margin-bottom: 36px;
  animation: fadeDown 0.6s ease;
}

.hub-header h1 {
  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--accent), var(--accent-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.hub-header p {
  color: var(--text-dim);
  font-size: 1rem;
}

.hub-footer {
  text-align: center;
  margin-top: 48px;
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* ===== Filters ===== */
.filters {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 32px;
  flex-wrap: wrap;
  animation: fadeDown 0.6s ease 0.1s both;
}

.filter-pill {
  padding: 8px 20px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--glass);
  color: var(--text-dim);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.filter-pill:hover { background: var(--glass-hover); color: var(--text); }

.filter-pill.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 4px 16px rgba(108,92,231,0.4);
}

/* ===== Game Grid ===== */
.game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}

.game-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px 24px;
  cursor: pointer;
  transition: var(--transition);
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  animation: cardIn 0.5s ease both;
}

.game-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--card-accent, var(--accent));
  opacity: 0;
  transition: var(--transition);
}

.game-card:hover {
  background: var(--glass-hover);
  border-color: var(--card-accent, var(--accent));
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.game-card:hover::before { opacity: 1; }

.game-card .icon {
  font-size: 2.8rem;
  margin-bottom: 14px;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
  transition: var(--transition);
}

.game-card:hover .icon { transform: scale(1.15); }

.game-card .name {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.game-card .desc {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.4;
}

.game-card .tag {
  margin-top: 10px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
  background: var(--card-accent, var(--accent));
  color: #fff;
  opacity: 0.8;
}

/* ===== Game Overlay ===== */
#gameOverlay {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, var(--bg-1), var(--bg-3));
  z-index: 100;
  display: flex;
  flex-direction: column;
  animation: fadeIn 0.3s ease;
}

#gameOverlay.hidden { display: none; }

.game-topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 24px;
  background: rgba(0,0,0,0.3);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
  flex-shrink: 0;
}

.game-topbar h2 {
  font-size: 1.3rem;
  font-weight: 700;
  flex: 1;
}

.btn-back, .btn-icon {
  padding: 8px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--glass);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.btn-back:hover, .btn-icon:hover {
  background: var(--glass-hover);
  border-color: var(--accent);
}

.game-stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  padding: 20px;
  position: relative;
}

#gameContainer { position: relative; }

/* ===== Shared Game Components ===== */
.game-info {
  display: flex;
  gap: 24px;
  margin-bottom: 16px;
  font-size: 1.1rem;
  font-weight: 600;
}

.game-info span { color: var(--accent-teal); }

.btn {
  padding: 10px 24px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover { filter: brightness(1.15); transform: translateY(-2px); }

.btn-secondary {
  background: var(--glass);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover { background: var(--glass-hover); }

.game-canvas {
  border-radius: 12px;
  display: block;
}

.game-message {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(10,10,26,0.85);
  backdrop-filter: blur(8px);
  z-index: 10;
  border-radius: 12px;
  gap: 16px;
}

.game-message h3 {
  font-size: 2rem;
  font-weight: 800;
}

.game-message p {
  color: var(--text-dim);
  font-size: 1.1rem;
}

/* ===== Rules Modal ===== */
.rules-modal {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10,10,26,0.7);
  backdrop-filter: blur(6px);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.rules-modal.show {
  opacity: 1;
  pointer-events: auto;
}

.rules-modal-inner {
  width: 90%;
  max-width: 560px;
  max-height: 80%;
  background: linear-gradient(135deg, rgba(22,33,62,0.95), rgba(26,26,62,0.95));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 16px 64px rgba(0,0,0,0.5);
  display: flex;
  flex-direction: column;
  transform: scale(0.92) translateY(20px);
  transition: transform 0.25s cubic-bezier(0.4,0,0.2,1);
  overflow: hidden;
}

.rules-modal.show .rules-modal-inner {
  transform: scale(1) translateY(0);
}

.rules-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.rules-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

.rules-close {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--glass);
  color: var(--text);
  cursor: pointer;
  font-size: 0.9rem;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.rules-close:hover {
  background: rgba(253,121,168,0.2);
  border-color: var(--accent-pink);
}

.rules-body {
  padding: 24px;
  overflow-y: auto;
  line-height: 1.7;
  color: var(--text);
  font-size: 0.95rem;
}

.rules-body h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent-teal);
  margin: 18px 0 8px;
}

.rules-body h4:first-child {
  margin-top: 0;
}

.rules-body ul {
  list-style: none;
  padding: 0;
  margin: 8px 0;
}

.rules-body li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 6px;
  color: var(--text-dim);
}

.rules-body li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.rules-body .highlight {
  color: var(--accent-gold);
  font-weight: 600;
}

.rules-body .kbd {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--border);
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 0.85rem;
  margin: 0 2px;
}

.rules-body p {
  color: var(--text-dim);
  margin-bottom: 8px;
}

/* ===== Canvas Responsive ===== */
.game-canvas {
  max-width: 100%;
  height: auto;
  touch-action: none;
}

/* ===== Touch Controls ===== */
.touch-controls {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  user-select: none;
  -webkit-user-select: none;
}
.touch-controls.show { display: flex; }
.touch-row { display: flex; gap: 8px; }
.touch-btn {
  width: 52px; height: 52px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--glass);
  color: var(--text);
  font-size: 1.4rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.1s;
  -webkit-tap-highlight-color: transparent;
}
.touch-btn:active {
  background: var(--accent);
  transform: scale(0.92);
}
.touch-btn.action {
  background: rgba(108,92,231,0.3);
  border-color: var(--accent);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  #hub { padding: 20px 12px 30px; }
  .hub-header h1 { font-size: 2rem; }
  .hub-header p { font-size: 0.85rem; }
  .game-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
  .game-card { padding: 20px 12px 16px; }
  .game-card .icon { font-size: 2.2rem; }
  .game-card .name { font-size: 1rem; }
  .game-card .desc { font-size: 0.75rem; }
  .game-topbar { padding: 8px 12px; gap: 6px; }
  .game-topbar h2 { font-size: 0.95rem; }
  .btn-back, .btn-icon {
    padding: 6px 10px;
    font-size: 0.8rem;
  }
  .game-stage { padding: 10px; }
  .game-info {
    gap: 12px;
    font-size: 0.9rem;
    flex-wrap: wrap;
    justify-content: center;
  }
  .game-canvas {
    max-width: calc(100vw - 24px);
  }
  .rules-modal-inner {
    width: 95%;
    max-height: 75%;
  }
  .rules-body { padding: 16px; font-size: 0.88rem; }
}

@media (max-width: 480px) {
  #hub { padding: 16px 8px 24px; }
  .hub-header h1 { font-size: 1.6rem; }
  .game-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .game-card { padding: 16px 8px 12px; }
  .game-card .icon { font-size: 2rem; }
  .game-card .name { font-size: 0.9rem; }
  .game-card .desc { display: none; }
  .game-card .tag { font-size: 0.65rem; padding: 2px 8px; }
  .filter-pill { padding: 6px 14px; font-size: 0.8rem; }
  .game-topbar h2 { font-size: 0.85rem; }
  .btn-back { padding: 6px 8px; font-size: 0.75rem; }
  .btn-icon { padding: 6px 8px; font-size: 0.75rem; }
  .game-info { font-size: 0.8rem; gap: 8px; }
  .game-message h3 { font-size: 1.5rem; }
  .game-message p { font-size: 0.9rem; }
  .touch-btn { width: 48px; height: 48px; font-size: 1.2rem; }
  .hm-wrap { flex-direction: column !important; gap: 12px !important; }
  .hm-keyboard { grid-template-columns: repeat(7, 1fr) !important; gap: 3px !important; }
  .hm-key { width: 100% !important; height: 38px !important; font-size: 0.9rem !important; }
  .hm-letter { width: 24px !important; height: 32px !important; font-size: 1.2rem !important; }
  .hm-canvas-wrap canvas { width: 160px !important; height: 200px !important; }
}

/* ===== Animations ===== */

/* ===== Animations ===== */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeDown { from { opacity: 0; transform: translateY(-16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes cardIn { from { opacity: 0; transform: scale(0.92); } to { opacity: 1; transform: scale(1); } }