/* ==========================================================================
   Caro Arena – Battle Royale Design System
   Light mode, editorial, anti-slop, taste-skill compliant
   ========================================================================== */

:root {
  --bg-app: #fafaf9;
  --bg-surface: #ffffff;
  --bg-raised: #f5f5f4;
  --bg-hover: #e7e5e4;
  --border: #e7e5e4;
  --border-medium: #d6d3d1;

  --text-primary: #1c1917;
  --text-secondary: #57534e;
  --text-tertiary: #78716c;
  --text-muted: #a8a29e;

  --laya-color: #0891b2;
  --jev-color: #7c3aed;
  --von-color: #059669;
  --mojev-color: #e11d48;
  --accent-amber: #d97706;

  --font-sans: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-card: 0 1px 3px rgba(0,0,0,0.06);
}

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

html, body {
  height: 100vh;
  max-height: 100vh;
  overflow: hidden;
  font-family: var(--font-sans);
  background: var(--bg-app);
  color: var(--text-primary);
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   Header
   ========================================================================== */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: 52px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.header-left, .header-right { display: flex; align-items: center; gap: 12px; }

.brand {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-primary);
}
.brand svg { flex-shrink: 0; }
.brand-name {
  font-weight: 700;
  font-size: 0.88rem;
  letter-spacing: -0.02em;
}

.header-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  background: var(--bg-raised);
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
}
.chip-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--text-muted);
  flex-shrink: 0;
}

.header-actions { display: flex; gap: 6px; }

.model-status-row {
  display: flex;
  gap: 8px;
  margin-left: 8px;
}
.status-pip {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.66rem;
  font-weight: 500;
  color: var(--text-tertiary);
}
.pip-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--von-color);
}
.pip-dot.offline { background: var(--text-muted); }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  color: var(--text-primary);
  font: 500 0.74rem/1 var(--font-sans);
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s;
  white-space: nowrap;
}
.btn:hover { background: var(--bg-raised); border-color: var(--border-medium); }
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; pointer-events: none; transform: none; }

.btn-primary {
  background: var(--text-primary);
  color: var(--bg-surface);
  border-color: var(--text-primary);
}
.btn-primary:hover { background: #292524; }
.btn-primary.btn-active {
  background: var(--mojev-color);
  border-color: var(--mojev-color);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover { background: var(--bg-raised); border-color: var(--border); }

.btn-xs {
  padding: 3px 8px;
  font-size: 0.68rem;
  border-radius: 4px;
}
.btn-danger { color: var(--mojev-color); border-color: var(--mojev-color); background: transparent; }
.btn-danger:hover { background: rgba(225,29,72,0.06); }

/* ==========================================================================
   Main Layout
   ========================================================================== */
.arena-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

/* Board Pane */
.board-pane {
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: 12px;
}

.board-stage {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.canvas-wrap {
  flex: 1;
  position: relative;
  min-height: 0;
  display: flex;
  align-items: start;
  justify-content: center;
  padding: 4px;
  overflow: hidden;
}
.canvas-wrap canvas {
  width: 100%;
  aspect-ratio: 1;
  max-height: 100%;
  border-radius: 6px;
  display: block;
}

.viewport-hud {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hud-btn {
  width: 28px; height: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  transition: background 0.1s;
}
.hud-btn:hover { background: var(--bg-raised); }

.player-legend {
  display: flex;
  gap: 12px;
  padding: 6px 12px;
  border-top: 1px solid var(--border);
  font-size: 0.7rem;
  color: var(--text-secondary);
  font-weight: 500;
}
.legend-item { display: flex; align-items: center; gap: 5px; }
.legend-swatch { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }

.board-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 12px;
  border-top: 1px solid var(--border);
  font-size: 0.66rem;
  color: var(--text-muted);
}
.board-hints { display: flex; gap: 4px; }
.board-hints .dot { color: var(--border-medium); }
.board-toggles { display: flex; gap: 10px; }
.board-toggles label {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  color: var(--text-tertiary);
  font-size: 0.66rem;
}
.board-toggles input { width: 13px; height: 13px; accent-color: var(--text-secondary); }

/* Replay Bar */
.replay-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  background: #fef3c7;
  border-bottom: 1px solid #fbbf24;
  font-size: 0.72rem;
}
.replay-info { display: flex; align-items: center; gap: 8px; }
.replay-badge {
  background: #f59e0b;
  color: #fff;
  padding: 1px 6px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.64rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.replay-controls { display: flex; gap: 4px; }


/* ==========================================================================
   Sidebar
   ========================================================================== */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-left: 1px solid var(--border);
  background: var(--bg-surface);
  overflow-y: auto;
  min-height: 0;
}

.panel {
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
}

.panel-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 10px;
}
.panel-title {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}
.panel-badge {
  font-size: 0.66rem;
  font-weight: 500;
  color: var(--text-tertiary);
  background: var(--bg-raised);
  padding: 2px 8px;
  border-radius: 999px;
}

/* Roster Configuration */
.roster-config {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.roster-toggle {
  cursor: pointer;
  user-select: none;
}
.roster-toggle input { display: none; }
.roster-chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1.5px solid var(--border);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-surface);
  transition: all 0.12s;
}
.roster-toggle input:checked + .roster-chip {
  border-color: var(--rc);
  color: var(--rc);
  background: color-mix(in srgb, var(--rc) 8%, white);
}

/* Leaderboard Table */
.leaderboard-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.74rem;
}
.leaderboard-table th {
  text-align: left;
  font-weight: 600;
  font-size: 0.64rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  padding: 0 6px 6px;
  border-bottom: 1px solid var(--border);
}
.leaderboard-table td {
  padding: 7px 6px;
  border-bottom: 1px solid var(--bg-raised);
  vertical-align: middle;
}
.leaderboard-table tr.leader td {
  background: var(--bg-raised);
  font-weight: 600;
}
.leaderboard-table tr.leader td:first-child { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.leaderboard-table tr.leader td:last-child { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }

.rank-cell { font-size: 0.82rem; text-align: center; width: 28px; }
.model-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}
.mono { font-family: var(--font-mono); font-size: 0.72rem; }
.muted { color: var(--text-muted); }
.empty-cell { text-align: center; color: var(--text-muted); padding: 16px !important; font-size: 0.72rem; }

/* Battle Roster */
.battle-roster {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.roster-slot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-surface);
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease, transform 0.18s cubic-bezier(0.22, 1, 0.36, 1);
}
.roster-slot.active {
  border-color: var(--pc);
  background: color-mix(in srgb, var(--pc) 6%, white);
  box-shadow: 0 2px 10px -2px color-mix(in srgb, var(--pc) 28%, transparent);
  transform: translateX(2px);
}
.roster-slot.thinking {
  border-color: var(--pc);
  background: color-mix(in srgb, var(--pc) 9%, white);
  box-shadow: 0 2px 12px -2px color-mix(in srgb, var(--pc) 32%, transparent);
}
.roster-slot.winner {
  border-color: var(--accent-amber);
  background: #fffbeb;
  box-shadow: 0 3px 12px -2px rgba(245, 158, 11, 0.28);
}
.roster-slot.eliminated { opacity: 0.55; }

.roster-ident { display: flex; align-items: center; gap: 6px; }
.roster-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; transition: transform 0.2s ease, box-shadow 0.2s ease; }
.roster-slot.active .roster-dot,
.roster-slot.thinking .roster-dot {
  transform: scale(1.22);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--pc) 25%, transparent);
}
.roster-name { font-weight: 600; font-size: 0.76rem; }
.roster-symbol {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-raised);
  padding: 0 4px;
  border-radius: 3px;
}

.roster-stats { display: flex; align-items: center; gap: 10px; }
.roster-moves { font-size: 0.66rem; color: var(--text-muted); font-family: var(--font-mono); }
.roster-status {
  font-size: 0.66rem;
  font-weight: 600;
  color: var(--text-tertiary);
}
.roster-status.active { color: var(--laya-color); }
.roster-status.thinking { color: var(--accent-amber); }
.roster-status.winner { color: var(--accent-amber); }
.roster-status.eliminated { color: var(--text-muted); }

/* History Tabs */
.panel-scroll {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.history-tabs {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 8px 16px 0;
  border-bottom: 1px solid var(--border);
}
.tab-btn {
  padding: 6px 12px;
  border: none;
  background: none;
  font: 600 0.72rem/1 var(--font-sans);
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.1s, border-color 0.1s;
}
.tab-btn:hover { color: var(--text-secondary); }
.tab-btn.active { color: var(--text-primary); border-bottom-color: var(--text-primary); }
.tab-counter {
  margin-left: auto;
  font-size: 0.64rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.tab-view { display: none; flex: 1; overflow: hidden; min-height: 0; }
.tab-view.active { display: flex; flex-direction: column; }

.move-list {
  list-style: none;
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 8px 16px;
  font-size: 0.72rem;
  scrollbar-width: thin;
  scrollbar-color: var(--border-medium) transparent;
}
.move-list::-webkit-scrollbar { width: 5px; }
.move-list::-webkit-scrollbar-track { background: transparent; }
.move-list::-webkit-scrollbar-thumb { background: var(--border-medium); border-radius: 999px; }

.move-item {
  display: flex;
  gap: 8px;
  padding: 4px 6px;
  margin: 0 -6px;
  border-radius: 6px;
  border-bottom: 1px solid var(--bg-raised);
  align-items: baseline;
  cursor: pointer;
  transition: background-color 0.14s ease, transform 0.14s ease;
}
.move-item:hover,
.move-item:focus-visible {
  background-color: var(--bg-raised);
  transform: translateX(2px);
  outline: none;
}
.move-item.is-latest {
  background-color: rgba(245, 158, 11, 0.08);
}
.empty-state {
  text-align: center;
  color: var(--text-muted);
  padding: 20px;
  font-size: 0.72rem;
}

.battles-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 0 16px 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-medium) transparent;
}
.battles-scroll::-webkit-scrollbar { width: 5px; }
.battles-scroll::-webkit-scrollbar-track { background: transparent; }
.battles-scroll::-webkit-scrollbar-thumb { background: var(--border-medium); border-radius: 999px; }
.battles-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.72rem;
}
.battles-table th {
  text-align: left;
  font-weight: 600;
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  padding: 6px 4px;
  border-bottom: 1px solid var(--border);
}
.battles-table td {
  padding: 6px 4px;
  border-bottom: 1px solid var(--bg-raised);
  vertical-align: middle;
}

/* ==========================================================================
   Championship Mode Banner
   ========================================================================== */
.championship-bar {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px 14px;
  background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
  border-bottom: 1px solid #fde68a;
  color: #92400e;
  font-size: 0.74rem;
}
.championship-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
}
.championship-title { display: flex; align-items: center; gap: 6px; }
.championship-status { font-family: var(--font-mono); font-size: 0.68rem; color: #b45309; }
.championship-progress {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.series-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  background: white;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid #fde68a;
  font-size: 0.68rem;
  font-weight: 600;
}
.series-pts {
  font-family: var(--font-mono);
  color: #b45309;
  background: #fef3c7;
  padding: 1px 5px;
  border-radius: 999px;
}

/* ==========================================================================
   Human Turn Bar & Undo
   ========================================================================== */
.human-turn-bar {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: #fffbeb;
  border-bottom: 1.5px solid #fde68a;
  color: #b45309;
  font-weight: 700;
  font-size: 0.78rem;
}
.human-turn-bar.active {
  display: flex;
}
.human-turn-content { display: flex; align-items: center; gap: 6px; }
.btn-outline {
  background: white;
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
}
.btn-outline:hover {
  background: var(--bg-raised);
  color: var(--text-primary);
}

/* ==========================================================================
   Ghost HUD Tooltip
   ========================================================================== */
.ghost-hud {
  position: absolute;
  pointer-events: none;
  background: rgba(26, 22, 18, 0.88);
  backdrop-filter: blur(6px);
  color: white;
  padding: 5px 9px;
  border-radius: var(--radius-sm);
  font-size: 0.68rem;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  transform: translate(-50%, -130%);
  transition: opacity 0.1s;
  z-index: 20;
}
.ghost-hud .score-badge {
  font-family: var(--font-mono);
  color: #fbbf24;
  margin-right: 4px;
}

/* ==========================================================================
   Modals & Sandbox
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  animation: fadeIn 0.15s ease-out;
}
.modal-card {
  width: 92%;
  max-width: 480px;
  background: var(--bg-surface, #ffffff);
  border: 1px solid var(--border, #e2e8f0);
  border-radius: 16px;
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25);
  overflow: hidden;
  animation: slideUp 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}
.modal-title {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
}
.modal-close {
  background: none;
  border: none;
  font-size: 1.3rem;
  cursor: pointer;
  color: var(--text-muted);
  line-height: 1;
}
.modal-close:hover { color: var(--text-primary); }
.modal-body {
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.modal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: var(--bg-raised);
  border-top: 1px solid var(--border);
}


/* ==========================================================================
   Victory Celebration Modal
   ========================================================================== */
.victory-card {
  text-align: center;
  padding: 24px 20px;
  background: radial-gradient(circle at 50% 10%, #fffbeb 0%, white 70%);
}
/* ==========================================================================
   Non-stop Battle Toggle
   ========================================================================== */
.toggle-nonstop-wrap {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  user-select: none;
  transition: all var(--transition);
}
.toggle-nonstop-wrap:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  background: var(--bg-hover);
}
.toggle-nonstop-wrap.active {
  color: var(--primary);
  border-color: var(--primary);
  background: rgba(37, 99, 235, 0.08);
}
.toggle-nonstop-wrap input[type="checkbox"] {
  cursor: pointer;
  accent-color: var(--primary);
  width: 14px;
  height: 14px;
  margin: 0;
}

.confetti-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1001;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes slideUp {
  from { transform: translateY(16px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ==========================================================================
   Multiplayer Room HUD & Modal
   ========================================================================== */
.multiplayer-hud {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 18px;
  background: linear-gradient(90deg, #1e293b 0%, #0f172a 100%);
  color: #f8fafc;
  font-size: 0.84rem;
  border-bottom: 1px solid #334155;
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
  z-index: 50;
  animation: slideDown 0.2s ease-out;
}
.mp-hud-left {
  display: flex;
  align-items: center;
  gap: 8px;
}
.mp-live-dot {
  color: #10b981;
  font-size: 0.75rem;
  animation: pulseDot 1.5s infinite;
}
.mp-hud-title {
  color: #94a3b8;
  font-weight: 500;
}
.mp-room-badge {
  font-family: monospace;
  font-weight: 800;
  letter-spacing: 0.05em;
  background: #334155;
  color: #38bdf8;
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid #475569;
}
.btn-copy-code {
  background: rgba(255,255,255,0.08);
  color: #f1f5f9;
  border: 1px solid rgba(255,255,255,0.15);
  font-size: 0.76rem;
  padding: 3px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.btn-copy-code:hover {
  background: rgba(255,255,255,0.18);
  border-color: rgba(255,255,255,0.3);
}
.mp-hud-center {
  font-weight: 600;
  color: #e2e8f0;
}
.mp-hud-right {
  display: flex;
  align-items: center;
}

.modal-mp {
  max-width: 520px;
  width: 92%;
  padding: 24px;
  border-radius: 16px;
  background: var(--bg-surface);
  box-shadow: 0 20px 40px rgba(0,0,0,0.25);
  border: 1px solid var(--border);
}
.modal-mp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.modal-mp-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}
.mp-icon { font-size: 1.35rem; }
.modal-mp-title {
  font-size: 1.25rem;
  font-weight: 800;
  margin: 0;
  color: var(--text-primary);
}
.modal-close {
  cursor: pointer;
  font-size: 1.1rem;
  background: transparent;
  border: none;
  color: var(--text-secondary);
}
.modal-close:hover { color: var(--text-primary); }

.mp-subtitle {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.45;
  margin-bottom: 16px;
}
.mp-form-group {
  margin-bottom: 14px;
}
.mp-form-group label, .mp-field-row label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.mp-form-group input, .mp-field-row input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1.5px solid var(--border);
  background: var(--bg-main);
  color: var(--text-primary);
  font-size: 0.92rem;
  box-sizing: border-box;
}
.mp-form-group input:focus, .mp-field-row input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
}
.mp-hint {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: 20px;
}

.mp-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
  border-bottom: 1.5px solid var(--border);
  padding-bottom: 10px;
}
.mp-tab-btn {
  background: transparent;
  border: none;
  padding: 6px 14px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.15s ease;
}
.mp-tab-btn:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}
.mp-tab-btn.active {
  color: var(--primary);
  background: rgba(37,99,235,0.08);
}
.mp-tab-settings {
  margin-left: auto;
  font-size: 0.8rem;
  font-weight: 600;
}

.mp-mode-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.mp-mode-banner.online {
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #047857;
}
.mp-mode-banner.local {
  background: #fffbeb;
  border: 1px solid #fde68a;
  color: #b45309;
}
.mp-mode-banner a {
  color: inherit;
  text-decoration: underline;
  cursor: pointer;
}

.mp-field-row {
  margin-bottom: 16px;
}
.mp-slots-container {
  margin-bottom: 18px;
}
.mp-slots-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}
.mp-slots-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mp-slot-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 8px;
  gap: 10px;
}
.mp-slot-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
}
.mp-slot-num {
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--text-secondary);
  width: 18px;
}
.mp-slot-avatar {
  font-size: 1.1rem;
}
.mp-slot-name {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
}
.mp-slot-badge {
  font-size: 0.74rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}
.mp-slot-badge.ready {
  background: #ecfdf5;
  color: #059669;
  border-color: #a7f3d0;
}
.mp-slot-select {
  font-size: 0.82rem;
  padding: 5px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-primary);
  cursor: pointer;
}

.mp-share-box {
  background: #f8fafc;
  border: 1.5px dashed #cbd5e1;
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 18px;
}
.mp-share-label {
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
  color: #64748b;
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}
.mp-share-input-wrap {
  display: flex;
  gap: 8px;
}
.mp-share-input-wrap input {
  flex: 1;
  font-family: monospace;
  font-size: 0.82rem;
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid #cbd5e1;
  background: #ffffff;
  color: #0f172a;
}
.mp-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 18px;
}

@keyframes slideDown {
  from { transform: translateY(-10px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
@keyframes pulseDot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ==========================================================================
   Active Rooms Lobby, Spectator Requests & Account/Cranes Auth Styles
   ========================================================================== */
.mp-lobby-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.mp-active-rooms-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 280px;
  overflow-y: auto;
  margin-bottom: 12px;
}
.mp-empty-rooms {
  text-align: center;
  padding: 28px 16px;
  background: var(--bg-raised);
  border: 1px dashed var(--border);
  border-radius: 10px;
  color: var(--text-secondary);
  font-size: 0.85rem;
}
.mp-room-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: border-color 0.15s ease;
}
.mp-room-card:hover {
  border-color: var(--primary);
}
.mp-room-card-title {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.mp-room-card-meta {
  font-size: 0.76rem;
  color: var(--text-secondary);
  margin-top: 3px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.mp-grid-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}
.mp-grid-fields .mp-field-row {
  margin-bottom: 0;
}
.mp-grid-fields .mp-checkbox-row {
  grid-column: 1 / -1;
  margin-top: 2px;
}
.mp-public-label {
  display: inline-flex !important;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem !important;
  text-transform: none !important;
  cursor: pointer;
  color: var(--text-primary) !important;
}
.mp-public-label input[type="checkbox"] {
  width: 15px !important;
  height: 15px !important;
  margin: 0;
  accent-color: var(--primary);
}
.mp-slots-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.mp-slot-add-bar {
  display: flex;
  gap: 6px;
}
.mp-slot-right {
  display: flex;
  align-items: center;
  gap: 6px;
}
.mp-spectators-section {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 14px;
}
.mp-spectators-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 0.8rem;
  color: #475569;
  font-weight: 600;
}
.mp-requests-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 10px;
}
.mp-request-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #92400e;
}
.mp-req-pill {
  display: inline-block;
  background: #ef4444;
  color: #fff;
  font-size: 0.68rem;
  font-weight: 800;
  padding: 1px 6px;
  border-radius: 999px;
  margin-left: 3px;
}
.mp-role-pill {
  font-size: 0.74rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.08);
}
.mp-host-approval-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 16px;
  background: #fffbeb;
  border-bottom: 1.5px solid #fcd34d;
  color: #92400e;
  font-size: 0.8rem;
  font-weight: 700;
}
.auth-cranes-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border: 1px solid #bfdbfe;
  border-radius: 12px;
  margin-bottom: 16px;
}
.auth-cranes-title {
  font-size: 0.88rem;
  font-weight: 800;
  color: #1e40af;
}
.auth-cranes-sub {
  font-size: 0.74rem;
  color: #3b82f6;
}
.auth-cranes-amount {
  font-size: 1.5rem;
  font-weight: 900;
  color: #1d4ed8;
  font-family: monospace;
}
.auth-status-msg {
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 12px;
}
.auth-status-msg.error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #b91c1c;
}
.auth-status-msg.success {
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #047857;
}

/* ==========================================================================
   Gameplay Motion, Focus & Accessibility Polish
   ========================================================================== */
#caro-canvas:focus-visible {
  outline: 2.5px solid var(--accent-amber, #d97706);
  outline-offset: -3px;
}

.canvas-wrap {
  transition: box-shadow 0.25s ease;
}

.canvas-wrap.human-turn-glow {
  box-shadow: inset 0 0 0 2px rgba(217, 119, 6, 0.45), 0 0 18px -4px rgba(217, 119, 6, 0.28);
}

.header-chip.turn-pulse {
  animation: chipTurnPulse 0.36s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes chipTurnPulse {
  0% { transform: scale(1); }
  45% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

/* ==========================================================================
   Lobby Start Screen (#lobby-home-screen), Cosmetics Shop, Emotes & Sparkline
   ========================================================================== */
.lobby-home-screen {
  flex: 1;
  overflow-y: auto;
  background: radial-gradient(circle at 18% 12%, #fffbeb 0%, #f8fafc 45%, #f1f5f9 100%);
  padding: 24px 20px 40px;
  display: flex;
  justify-content: center;
}

.lobby-home-container {
  width: 100%;
  max-width: 1120px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.lobby-home-hero {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 20px;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 20px 24px;
  box-shadow: 0 10px 25px -12px rgba(15, 23, 42, 0.08);
}

.lobby-home-hero-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.lobby-live-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  align-self: flex-start;
  padding: 3px 10px;
  border-radius: 999px;
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #047857;
  font-size: 0.72rem;
  font-weight: 700;
}

.lobby-home-title {
  margin: 2px 0 0;
  font-size: 1.45rem;
  font-weight: 800;
  color: #0f172a;
  letter-spacing: -0.02em;
}

.lobby-home-subtitle {
  margin: 0;
  font-size: 0.84rem;
  color: #475569;
  line-height: 1.45;
  max-width: 640px;
}

.lobby-home-wallet-card {
  min-width: 245px;
  background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
  border: 1px solid #fde68a;
  border-radius: 14px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 10px;
}

.lobby-wallet-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.lobby-wallet-label {
  font-size: 0.78rem;
  font-weight: 800;
  color: #92400e;
}

.lobby-wallet-user {
  font-size: 0.72rem;
  font-weight: 600;
  color: #b45309;
}

.lobby-wallet-amount {
  font-size: 1.55rem;
  font-weight: 900;
  color: #b45309;
  font-family: var(--font-mono, monospace);
}

.lobby-wallet-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lobby-home-grid {
  display: grid;
  grid-template-columns: 1.45fr 1fr;
  gap: 20px;
  align-items: start;
}

.lobby-home-col-main,
.lobby-home-col-side {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.lobby-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 18px 20px;
  box-shadow: 0 8px 20px -12px rgba(15, 23, 42, 0.06);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.lobby-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.lobby-card-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lobby-card-title {
  margin: 0;
  font-size: 0.98rem;
  font-weight: 800;
  color: #0f172a;
}

.lobby-card-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.lobby-home-rooms-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 150px;
  max-height: 320px;
  overflow-y: auto;
}

.lobby-quick-join-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid #f1f5f9;
  flex-wrap: wrap;
}

.lobby-quick-join-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: #475569;
}

.lobby-quick-join-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 220px;
}

.lobby-quick-join-controls input {
  flex: 1;
  padding: 7px 11px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-size: 0.82rem;
  font-family: var(--font-mono, monospace);
}

.lobby-practice-desc {
  margin: 0;
  font-size: 0.8rem;
  color: #475569;
  line-height: 1.45;
}

/* Unlockable Board Cosmetics Grid */
.lobby-themes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.theme-cosmetic-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1.5px solid #e2e8f0;
  background: #f8fafc;
  transition: all 0.16s ease;
}

.theme-cosmetic-card.selected {
  border-color: #d97706;
  background: #fffbeb;
  box-shadow: 0 0 0 2px rgba(217, 119, 6, 0.15);
}

.theme-swatch-info {
  display: flex;
  align-items: center;
  gap: 9px;
}

.theme-swatch-preview {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  border: 1px solid rgba(0, 0, 0, 0.12);
}

.theme-cosmetic-name {
  font-size: 0.8rem;
  font-weight: 700;
  color: #0f172a;
}

.theme-cosmetic-desc {
  font-size: 0.68rem;
  color: #64748b;
}

/* Multiplayer HUD Emotes & Wager Badge */
.mp-wager-badge {
  background: #fef3c7 !important;
  color: #b45309 !important;
  border: 1px solid #fde68a !important;
}

.mp-emote-bar {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  margin-right: 8px;
  padding: 2px 5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid #cbd5e1;
}

.btn-mp-emote {
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 0.88rem;
  line-height: 1;
  padding: 3px 5px;
  border-radius: 6px;
  transition: transform 0.14s cubic-bezier(0.22, 1, 0.36, 1), background-color 0.14s ease;
}

.btn-mp-emote:hover {
  transform: scale(1.22);
  background: #f1f5f9;
}

.mp-floating-emotes {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 30;
}

.floating-emote-pill {
  position: absolute;
  bottom: 18px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 11px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.86);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 700;
  box-shadow: 0 8px 20px -4px rgba(0, 0, 0, 0.28);
  animation: floatEmoteUp 2.2s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes floatEmoteUp {
  0% {
    opacity: 0;
    transform: translateY(12px) scale(0.75);
  }
  15% {
    opacity: 1;
    transform: translateY(0) scale(1.04);
  }
  80% {
    opacity: 1;
    transform: translateY(-78px) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(-110px) scale(0.92);
  }
}

/* Post-Match Tactical Momentum Sparkline Bar */
.tactical-graph-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 14px;
  background: #f8fafc;
  border-bottom: 1px solid #e2e8f0;
  flex-wrap: wrap;
}

.tactical-graph-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.tactical-graph-title {
  font-size: 0.74rem;
  font-weight: 800;
  color: #334155;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

#tactical-sparkline-canvas {
  cursor: pointer;
  border-radius: 6px;
  background: #ffffff;
  border: 1px solid #cbd5e1;
}

.tactical-turning-points {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.btn-turning-point {
  border: 1px solid #cbd5e1;
  background: #ffffff;
  color: #1e293b;
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 0.7rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.14s ease;
}

.btn-turning-point:hover {
  border-color: #d97706;
  background: #fffbeb;
  color: #b45309;
}

.board-theme-select {
  padding: 2px 6px;
  border-radius: 6px;
  border: 1px solid #cbd5e1;
  background: #ffffff;
  font-size: 0.72rem;
  font-weight: 600;
  color: #334155;
  cursor: pointer;
}

/* Toast Notifications */
.arena-toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 100000;
  pointer-events: none;
}

.arena-toast {
  pointer-events: auto;
  background: #0f172a;
  color: #ffffff;
  padding: 10px 15px;
  border-radius: 10px;
  font-size: 0.8rem;
  font-weight: 700;
  box-shadow: 0 12px 28px -6px rgba(15, 23, 42, 0.35);
  border-left: 4px solid #f59e0b;
  animation: toastSlideIn 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes toastSlideIn {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ==========================================================================
   Responsive & Reduced Motion
   ========================================================================== */
@media (max-width: 840px) {
  .arena-layout { grid-template-columns: 1fr; }
  .sidebar { border-left: none; border-top: 1px solid var(--border); max-height: 50vh; }
  .model-status-row { display: none; }
  .mp-grid-fields { grid-template-columns: 1fr; }
  .lobby-home-hero { flex-direction: column; }
  .lobby-home-grid { grid-template-columns: 1fr; }
  .lobby-themes-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .roster-slot.active {
    transform: none !important;
  }
  .move-item:hover,
  .move-item:focus-visible {
    transform: none !important;
  }
}