/* Portal game session tabs — UI. Canon: PORTAL_GAME_TABS.md */
#portal-game-tabs {
  display: none;
  flex-wrap: nowrap;
  gap: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding: 6px 10px 4px;
  margin: 0;
  background: rgba(0, 0, 0, 0.22);
  border-bottom: 1px solid rgba(245, 240, 230, 0.12);
}
#portal-game-tabs.on { display: flex; }
#portal-game-tabs .pgt-tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 40px;
  max-width: 11rem;
  padding: 6px 8px 6px 10px;
  border-radius: 10px;
  border: 1px solid rgba(245, 240, 230, 0.28);
  background: rgba(30, 63, 52, 0.95);
  color: #f5f0e6;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
}
#portal-game-tabs .pgt-tab .pgt-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
#portal-game-tabs .pgt-tab.active {
  border-color: #c9a227;
  box-shadow: 0 0 0 1px rgba(201, 162, 39, 0.45);
  background: #1e3f34;
}
#portal-game-tabs .pgt-tab.your-turn { border-color: rgba(100, 180, 255, 0.7); }
#portal-game-tabs .pgt-tab.paused { opacity: 0.85; border-style: dashed; }
#portal-game-tabs .pgt-tab .pgt-badge {
  min-width: 0.55em; height: 0.55em; border-radius: 50%;
  background: #c9a227;
}
#portal-game-tabs .pgt-tab .pgt-x {
  border: none; background: transparent; color: #bdbdbd;
  font-size: 1.1rem; line-height: 1; padding: 0 2px; cursor: pointer;
}
#portal-game-tabs .pgt-tab .pgt-x:hover { color: #ff8a80; }

/* Alert styles (prefs tab_alert_style) */
#portal-game-tabs.alert-pulse .pgt-tab.opponent-moved {
  animation: pgtPulse 1.1s ease-in-out infinite;
}
#portal-game-tabs.alert-bright .pgt-tab.opponent-moved {
  background: rgba(201, 162, 39, 0.55);
  color: #1a1408;
}
#portal-game-tabs.alert-border .pgt-tab.opponent-moved {
  border-width: 3px;
  border-color: #ffe08a;
}
#portal-game-tabs.alert-badge .pgt-tab.opponent-moved .pgt-badge { display: inline-block; }
#portal-game-tabs .pgt-tab .pgt-badge { display: none; }
#portal-game-tabs.alert-badge .pgt-tab.opponent-moved .pgt-badge,
#portal-game-tabs.alert-pulse .pgt-tab.opponent-moved .pgt-badge { display: inline-block; }

@keyframes pgtPulse {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.45); }
}

#portal-pause-banner {
  display: none;
  margin: 0 10px 4px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid rgba(232, 197, 71, 0.65);
  background: rgba(40, 50, 30, 0.95);
  color: #ffe08a;
  font-size: 0.85rem;
  font-weight: 700;
  text-align: center;
}
#portal-pause-banner.show { display: block; }

#portal-tab-menu {
  display: none; position: fixed; inset: 0; z-index: 74;
  align-items: center; justify-content: center;
  background: rgba(0, 0, 0, 0.55); padding: 12px;
}
#portal-tab-menu.open { display: flex; }
#portal-tab-menu .card {
  width: min(400px, 100%); background: #1e3f34; color: #f5f0e6;
  border: 2px solid #c9a227; border-radius: 14px; padding: 14px;
}
#portal-tab-menu .btns {
  display: flex; flex-direction: column; gap: 12px; margin-top: 12px;
}
#portal-tab-menu .btns button {
  width: 100%; min-height: 72px; border: none; border-radius: 12px;
  background: var(--accent, #c9a227); color: #1a1408;
  font-size: 1.15rem; font-weight: 800;
}
#portal-tab-menu .btns button.secondary {
  background: transparent; color: #f5f0e6;
  border: 1px solid rgba(245, 240, 230, 0.4);
  min-height: 48px; font-size: 1rem;
}
#portal-tab-menu .btns button.danger {
  background: #8b3a3a; color: #fff;
}