:root {
  --bg: #f6f4ee;
  --bg-card: #fffdf8;
  --bg-surface: #ede9e0;
  --accent: #c1121f;
  --accent2: #b45309;
  --accent3: #0e7490;
  --text: #0b1220;
  --text-dim: #64748b;
  --success: #059669;
  --danger: #dc2626;
  --tile-border: #c5bba8;
  --radius: 12px;
  /* Alias for any references */
  --card-bg: var(--bg-card);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

h1 {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 { font-size: 1.4rem; font-weight: 700; color: var(--text); }

.screen { display: none; }
.screen.active { display: block; }

/* ========== FULL-SCREEN PLAYING (player) ========== */
#screen-playing.active {
  display: flex; flex-direction: column;
  position: fixed; inset: 0; z-index: 50;
  background: var(--bg); padding: 0.5rem;
}
#screen-playing .turn-indicator { flex-shrink: 0; margin-bottom: 0.5rem; }
#screen-playing .board-container {
  flex: 1; min-height: 0; max-width: none;
  display: flex; align-items: center; justify-content: center;
}
#screen-playing .board-container canvas { border-radius: 8px; }
#screen-playing .captures-bar,
#screen-playing .confirm-bar,
#screen-playing .stone-tray { flex-shrink: 0; }

.container { max-width: 1200px; margin: 0 auto; padding: 1rem; }

.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  border: 1px solid #cbd5e1;
  box-shadow: 0 2px 8px rgba(15,23,42,0.06);
}

/* ========== BUTTONS ========== */
.btn {
  padding: 0.75rem 1.5rem; border: none; border-radius: var(--radius);
  font-size: 1rem; font-weight: 700; cursor: pointer; transition: all 0.2s;
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
}
.btn-primary { background: linear-gradient(135deg, var(--accent), #a00d19); color: white; }
.btn-primary:hover { opacity: 0.9; }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-success { background: linear-gradient(135deg, var(--success), #047857); color: white; }
.btn-success:disabled { opacity: 0.35; cursor: not-allowed; }
.btn-secondary { background: var(--bg-surface); color: var(--text); border: 1px solid var(--tile-border); }

/* ========== AVATAR ========== */
.avatar {
  width: 50px; height: 50px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; border: 3px solid var(--tile-border);
  position: relative; overflow: hidden; flex-shrink: 0;
}
.avatar img { display: block; width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
.avatar-large { width: 80px; height: 80px; font-size: 2.5rem; }
.avatar-preview { width: 100px; height: 100px; font-size: 3rem; margin: 0.75rem auto; }

/* ========== LOBBY ========== */
.join-url { font-size: 1.2rem; font-weight: 700; color: var(--accent3); word-break: break-all; }
.lobby-players { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; margin-top: 1rem; }
.player-card {
  background: var(--bg-card); border-radius: var(--radius); padding: 0.75rem 1rem;
  text-align: center; border: 1px solid #cbd5e1; min-width: 100px;
}
.player-name { font-weight: 600; font-size: 0.9rem; margin-top: 0.25rem; }
.waiting-msg { text-align: center; padding: 2rem 1rem; color: var(--text-dim); font-size: 1.1rem; }

/* ========== QR CODE ========== */
.qr-area { text-align: center; padding: 1rem; }
.qr-code-img {
  display: block; width: 180px; height: 180px; margin: 0.5rem auto;
  border-radius: 8px; background: white; padding: 6px;
  border: 1px solid #cbd5e1;
}
.qr-url { font-size: 0.85rem; color: var(--accent3); word-break: break-all; margin-top: 0.4rem; }

/* ========== SCOREBOARD ========== */
.scoreboard { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: center; }

/* ========== STONE INDICATORS ========== */
.stone-dot {
  display: inline-block; width: 16px; height: 16px; border-radius: 50%; vertical-align: middle;
  border: 1px solid rgba(0,0,0,0.15);
}
.stone-dot.s1 { background: #e0e0e0; border-color: #aaa; }
.stone-dot.s2 { background: #1a1a1a; border-color: #555; }
.stone-dot.s3 { background: #3b82f6; }
.stone-dot.s4 { background: #ef4444; }
.stone-dot-large { width: 24px; height: 24px; }

/* ========== TURN INDICATOR ========== */
.turn-indicator {
  text-align: center; padding: 0.5rem 1rem; border-radius: var(--radius);
  font-weight: 700; font-size: 1rem; margin-bottom: 0.75rem;
}
.turn-indicator.my-turn {
  background: rgba(5,150,105,0.1); border: 2px solid var(--success); color: var(--success);
}
.turn-indicator.waiting {
  background: rgba(100,116,139,0.08); border: 2px solid var(--tile-border); color: var(--text-dim);
}

/* ========== BOARD ========== */
.board-container { position: relative; width: 100%; max-width: 600px; margin: 0 auto; }
.board-container canvas { display: block; width: 100%; aspect-ratio: 1; border-radius: 8px; }

/* ========== CAPTURES ========== */
.captures-bar {
  display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: center;
  padding: 0.5rem 0; margin-top: 0.5rem;
}
.capture-info {
  display: flex; align-items: center; gap: 0.4rem; font-size: 0.85rem;
  padding: 0.3rem 0.6rem; background: var(--bg-card);
  border-radius: 8px; border: 1px solid #cbd5e1;
}
.capture-count { font-weight: 700; }

/* ========== HOST LAYOUT ========== */
.host-layout { display: flex; gap: 1.5rem; align-items: flex-start; }
.host-center { flex: 1; min-width: 0; }
.host-sidebar { width: 280px; flex-shrink: 0; }
@media (max-width: 768px) {
  .host-layout { flex-direction: column; }
  .host-sidebar { width: 100%; }
}
.host-board-container { width: 100%; max-width: 700px; }
.host-board-container canvas { display: block; width: 100%; aspect-ratio: 1; border-radius: 8px; }

/* ========== PLAYER LIST (host sidebar) ========== */
.player-row {
  display: flex; align-items: center; gap: 0.75rem; padding: 0.75rem;
  border-radius: 10px; margin-bottom: 0.5rem;
}
.player-row.active-turn { background: rgba(5,150,105,0.08); border: 1px solid var(--success); }

/* ========== WINNER ========== */
.winner-card {
  text-align: center; padding: 2rem; margin: 1rem 0;
  background: var(--bg-card); border-radius: var(--radius); border: 2px solid var(--accent2);
  box-shadow: 0 2px 8px rgba(15,23,42,0.06);
}
.winner-card .winner-name { font-size: 1.8rem; font-weight: 900; color: var(--accent2); }
.winner-card .win-reason { color: var(--text-dim); margin-top: 0.5rem; }

/* ========== CONFIRM BUTTON ========== */
.confirm-bar { text-align: center; margin-bottom: 0.5rem; }

/* ========== TOAST ========== */
.toast-container { position: fixed; bottom: 1rem; left: 50%; transform: translateX(-50%); z-index: 999; }
.toast {
  padding: 0.5rem 1rem; border-radius: 8px; margin-top: 0.5rem;
  font-weight: 600; font-size: 0.9rem; animation: fadeInUp 0.3s;
}
.toast.error { background: var(--danger); color: white; }
.toast.success { background: var(--success); color: white; }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ========== AVATAR BUILDER ========== */
.avatar-builder { max-width: 400px; margin: 0 auto; }
.section-label { font-size: 0.85rem; color: var(--text-dim); margin: 0.75rem 0 0.25rem; text-transform: uppercase; letter-spacing: 0.1em; }
.avatar-options { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; }
.color-option {
  width: 36px; height: 36px; border-radius: 50%; cursor: pointer;
  border: 3px solid transparent; transition: border-color 0.2s;
}
.color-option.selected { border-color: #0b1220; box-shadow: 0 0 6px rgba(0,0,0,0.25); }

.draw-area-wrapper { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; }
#draw-canvas {
  border: 3px solid var(--tile-border); border-radius: 12px;
  background: #f0ece4; touch-action: none; cursor: crosshair;
  width: 180px; height: 180px;
}
.draw-tools { display: flex; justify-content: space-between; align-items: center; width: 180px; }
.draw-colors { display: flex; gap: 4px; flex-wrap: wrap; }
.draw-color { width: 22px; height: 22px; border-radius: 50%; border: 2px solid transparent; cursor: pointer; }
.draw-color.selected { border-color: #0b1220; box-shadow: 0 0 6px rgba(0,0,0,0.3); }
.draw-actions { display: flex; gap: 0.25rem; }
.btn-tool {
  background: var(--bg-surface); border: 1px solid var(--tile-border); color: var(--text);
  border-radius: 6px; padding: 0.25rem 0.5rem; font-size: 1rem; cursor: pointer;
}
.btn-tool:active { background: var(--tile-border); }

/* ========== STONE TRAY ========== */
.stone-tray {
  display: flex; align-items: center; justify-content: center; gap: 0.75rem;
  padding: 0.6rem 1rem; margin-top: 0.5rem;
  background: linear-gradient(135deg, #c9a87a, #b8956a);
  border-radius: 16px;
  box-shadow: inset 0 2px 6px rgba(0,0,0,0.12), 0 1px 3px rgba(0,0,0,0.15);
  transition: opacity 0.2s;
}
.stone-tray-label { font-size: 0.8rem; color: rgba(60,40,20,0.6); font-weight: 600; font-style: italic; }
.stone-pile { position: relative; width: 150px; height: 55px; }
.pile-stone {
  position: absolute; width: 30px; height: 30px; border-radius: 50%;
  cursor: grab; touch-action: none; box-shadow: 0 2px 5px rgba(0,0,0,0.35); transition: opacity 0.15s;
}
.pile-stone:active { cursor: grabbing; }
.pile-stone.s1 { background: radial-gradient(circle at 35% 35%, #fff, #bbb); }
.pile-stone.s2 { background: radial-gradient(circle at 35% 35%, #555, #111); }
.pile-stone.s3 { background: radial-gradient(circle at 35% 35%, #60a5fa, #2563eb); }
.pile-stone.s4 { background: radial-gradient(circle at 35% 35%, #f87171, #dc2626); }

/* ========== DRAG FLOATER ========== */
.drag-floater {
  position: fixed; width: 60px; height: 60px; border-radius: 50%;
  pointer-events: none; z-index: 1000; box-shadow: 0 8px 24px rgba(0,0,0,0.4); opacity: 0.9;
}
.drag-floater.s1 { background: radial-gradient(circle at 35% 35%, #fff, #bbb); }
.drag-floater.s2 { background: radial-gradient(circle at 35% 35%, #555, #111); }
.drag-floater.s3 { background: radial-gradient(circle at 35% 35%, #60a5fa, #2563eb); }
.drag-floater.s4 { background: radial-gradient(circle at 35% 35%, #f87171, #dc2626); }

/* ========== UNDO BUTTON ========== */
.btn-undo {
  background: transparent; color: var(--text-dim); border: 1px solid var(--tile-border);
  border-radius: 8px; padding: 0.3rem 0.8rem; font-size: 0.75rem; font-weight: 500; cursor: pointer;
}
.btn-undo:disabled { opacity: 0.3; cursor: not-allowed; }

/* ========== UNDO OVERLAY ========== */
.undo-overlay {
  position: fixed; inset: 0; z-index: 900;
  background: rgba(0,0,0,0.4); display: flex; align-items: center; justify-content: center;
}
.undo-prompt { max-width: 320px; width: 90%; text-align: center; padding: 1.5rem; }

/* ========== JOIN SCREEN ========== */
.join-screen { max-width: 420px; margin: 2rem auto; text-align: center; padding: 0 1rem; }
.join-screen input[type="text"] {
  width: 100%; padding: 0.85rem 1rem; border: 2px solid var(--tile-border);
  border-radius: var(--radius); background: var(--bg-surface); color: var(--text);
  font-size: 1.2rem; font-weight: 700; text-align: center; outline: none; margin-bottom: 1rem;
}
.join-screen input[type="text"]:focus { border-color: var(--accent); }

/* ========== HOST CONTROLS BAR ========== */
.host-controls-bar {
  position: fixed; bottom: 0; left: 0; right: 0;
  background: var(--bg-card); border-top: 1px solid #cbd5e1;
  padding: 0.5rem 1rem; display: flex; align-items: center; justify-content: center;
  gap: 1rem; z-index: 100; flex-wrap: wrap;
}
.host-controls-bar select {
  background: var(--bg-surface); color: var(--text); border: 1px solid var(--tile-border);
  border-radius: 8px; padding: 0.4rem 0.6rem; font-size: 0.85rem;
}