:root {
  --bg-color: #0d1117;
  --card-bg: #161b22;
  --card-border: #30363d;
  --text-main: #f0f6fc;
  --text-muted: #8b949e;
  --color-x: #58a6ff;
  --color-o: #f0883e;
  --color-win: #238636;
  --color-win-bg: rgba(35, 134, 54, 0.2);
  --cell-bg: #21262d;
  --cell-hover: #292e36;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-family);
  display: flex;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

#app {
  width: 100%;
  max-width: 440px;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.game-header {
  text-align: center;
}

.game-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.subtitle {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.controls-panel {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1rem;
}

.mode-select {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.mode-select select {
  background: var(--cell-bg);
  color: var(--text-main);
  border: 1px solid var(--card-border);
  border-radius: 6px;
  padding: 0.35rem 0.6rem;
  font-size: 0.85rem;
  outline: none;
  cursor: pointer;
}

.scoreboard {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.5rem;
}

.score-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--cell-bg);
  padding: 0.5rem 0.25rem;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.score-card.active {
  border-color: var(--color-x);
  transform: translateY(-1px);
}

.score-card.player-o.active {
  border-color: var(--color-o);
}

.score-card .label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.score-card .score {
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 0.15rem;
}

.score-card.player-x .score {
  color: var(--color-x);
}

.score-card.player-o .score {
  color: var(--color-o);
}

.board-container {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.status-banner {
  text-align: center;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.5rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  min-height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  background: var(--card-bg);
  padding: 0.5rem;
  border: 1px solid var(--card-border);
  border-radius: 12px;
}

.cell {
  aspect-ratio: 1 / 1;
  background: var(--cell-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.15s ease, transform 0.1s ease;
  user-select: none;
}

.cell:hover:not(:disabled) {
  background: var(--cell-hover);
  transform: scale(0.98);
}

.cell:disabled {
  cursor: default;
}

.cell.x {
  color: var(--color-x);
}

.cell.o {
  color: var(--color-o);
}

.cell.winning {
  background: var(--color-win-bg);
  border-color: var(--color-win);
  animation: pulse 1s infinite alternate;
}

@keyframes pulse {
  from { transform: scale(1); }
  to { transform: scale(1.03); }
}

.actions {
  display: flex;
  gap: 0.5rem;
}

.btn {
  flex: 1;
  padding: 0.65rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--card-border);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s ease, background 0.2s ease;
}

.btn-secondary {
  background: #238636;
  color: #fff;
  border-color: #2ea043;
}

.btn-secondary:hover {
  background: #2ea043;
}

.btn-tertiary {
  background: var(--cell-bg);
  color: var(--text-muted);
}

.btn-tertiary:hover {
  background: var(--cell-hover);
  color: var(--text-main);
}

/* WARDEN_PATCH:LOBBY_BOOTSTRAP */
body {
  background: radial-gradient(circle at top, #1f1924 0%, #0d1117 70%);
}
.warden-brand-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(90deg, #1b1622 0%, #161b22 50%, #1b1622 100%);
  border: 2px solid #c6a66488;
  border-radius: 12px;
  padding: 0.55rem 0.85rem;
  box-shadow: 0 4px 18px rgba(245, 158, 11, 0.15);
}
.warden-logo-lockup {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: #f59e0b;
}
.warden-emblem {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.warden-season-pill {
  background: rgba(245, 158, 11, 0.18);
  border: 1px solid rgba(245, 158, 11, 0.5);
  color: #fde047;
  border-radius: 999px;
  padding: 0.12rem 0.5rem;
  font-size: 0.65rem;
}
.warden-lobby-status {
  font-size: 0.7rem;
  color: #3fb950;
  font-family: monospace;
}
.warden-lobby-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 12, 18, 0.94);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  padding: 1.5rem;
}
.warden-lobby-card {
  width: 100%;
  max-width: 390px;
  background: linear-gradient(180deg, #1e1b26 0%, #12151e 100%);
  border: 2px solid #d9770688;
  border-radius: 18px;
  padding: 1.85rem 1.5rem;
  text-align: center;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.75), 0 0 32px rgba(245, 158, 11, 0.18);
}
.warden-crest-art {
  display: flex;
  justify-content: center;
  margin-bottom: 0.75rem;
  filter: drop-shadow(0 0 16px rgba(245, 158, 11, 0.35));
}
.warden-loader-sub {
  color: #94a3b8;
  font-size: 0.85rem;
  margin: 0.4rem 0 1.1rem;
}
.warden-loader-track {
  height: 10px;
  width: 100%;
  background: #0f172a;
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid #f59e0b55;
}
.warden-loader-fill {
  height: 100%;
  width: 15%;
  background: linear-gradient(90deg, #d97706, #f59e0b, #3fb950);
  transition: width 0.35s ease;
}
.warden-play-cta {
  width: 100%;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  padding: 0.85rem 1.2rem;
  margin-top: 0.5rem;
  background: linear-gradient(90deg, #d97706, #f59e0b);
  color: #0f172a;
  border: 1px solid #fde047;
  border-radius: 10px;
  cursor: pointer;
}

/* WARDEN_PATCH:TROPHY_ASSETS */
.warden-trophy-ladder {
  background: linear-gradient(135deg, #1b1622 0%, #141923 100%);
  border: 2px solid #f59e0b66;
  border-radius: 14px;
  padding: 0.8rem 0.95rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  box-shadow: 0 0 22px rgba(245, 158, 11, 0.16);
}
.warden-trophy-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  font-weight: 700;
}
.warden-league-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #38bdf8;
  letter-spacing: 0.05em;
}
.warden-trophy-count {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: #fbbf24;
  font-family: monospace;
  font-size: 0.85rem;
}
.warden-sprite-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.4rem;
}
.warden-sprite-pill {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  text-align: center;
  font-size: 0.68rem;
  padding: 0.45rem 0.25rem;
  border-radius: 8px;
  background: #161b26;
  border: 1px solid #30363d;
  color: #94a3b8;
}
.warden-sprite-pill.unlocked {
  color: #f8fafc;
  border-color: #3fb95077;
  background: rgba(30, 41, 59, 0.85);
}
.warden-sprite-pill.active {
  color: #fde047;
  border-color: #f59e0b;
  background: rgba(245, 158, 11, 0.18);
  box-shadow: 0 0 14px rgba(245, 158, 11, 0.28);
  font-weight: 700;
}
.board .cell {
  border: 2px solid #c6a66444;
  box-shadow: inset 0 0 12px rgba(15, 23, 42, 0.7);
}