/* ============================================================================
   CSS CUSTOM PROPERTIES
   ============================================================================ */

:root {
  color-scheme: dark;

  /* Background & Surfaces - Chess.com dark tones */
  --bg-deep: #272522;
  --bg-mid: #312e2b;
  --panel-bg: #21201d;
  --panel-border: #3d3a37;
  --sidebar-bg: #21201d;

  /* Accent - Chess.com green */
  --accent: #81b64c;
  --accent-bright: #a3d160;
  --accent-dim: #629924;
  --accent-muted: rgba(129, 182, 76, 0.15);
  --accent-glow: rgba(129, 182, 76, 0.25);

  /* Board Colors */
  --board-light: #ebecd0;
  --board-dark: #779556;
  --board-border: #3d3a37;
  --board-border-outer: #272522;

  /* Text - neutral off-whites */
  --text: #f0f0f0;
  --text-muted: #9e9e9c;
  --text-dim: #4a4643;

  /* Semantic */
  --danger: #c44;
  --danger-bg: rgba(204, 68, 68, 0.1);
  --danger-border: rgba(204, 68, 68, 0.3);
  --success: #81b64c;
  --success-bg: rgba(129, 182, 76, 0.1);

  /* Typography */
  --font-heading: 'Nunito', 'Roboto', sans-serif;
  --font-body: 'Roboto', 'Nunito', sans-serif;
}

/* ============================================================================
   RESET & BASE
   ============================================================================ */

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

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg-deep);
  background-image:
    radial-gradient(ellipse at 30% 20%, rgba(60, 40, 20, 0.4) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 80%, rgba(40, 25, 10, 0.3) 0%, transparent 50%);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  padding: 24px;
  padding-bottom: 60px;
}

main {
  width: min(1100px, 100%);
}

.hidden {
  display: none !important;
}

/* ============================================================================
   TYPOGRAPHY
   ============================================================================ */

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: 0.01em;
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--text);
}

h2 {
  margin: 0 0 12px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  font-weight: 600;
}

/* ============================================================================
   PANELS (shared)
   ============================================================================ */

.panel {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  padding: 36px;
  box-shadow:
    0 1px 0 rgba(129, 182, 76, 0.08) inset,
    0 16px 40px rgba(0, 0, 0, 0.45);
  position: relative;
}

/* ============================================================================
   LANDING PANEL
   ============================================================================ */

.landing-panel {
  max-width: 700px;
  margin: 0 auto;
}

.landing-header {
  text-align: center;
  max-width: 520px;
  margin: 0 auto 36px;
}

.game-title {
  font-size: clamp(2.2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 2px;
  letter-spacing: 0.04em;
}

.game-subtitle {
  margin: 0 0 8px;
  color: var(--text-muted);
  font-size: clamp(1rem, 2vw, 1.3rem);
  font-weight: 400;
  font-family: var(--font-heading);
}

.tagline {
  margin: 0;
  color: var(--text-muted);
  font-size: 1rem;
  font-style: italic;
  font-family: var(--font-heading);
}

.landing-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 520px;
  margin: 0 auto;
}

.landing-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.landing-buttons button {
  flex: 1;
  min-width: 120px;
  padding: 14px 18px;
  font-size: 0.95rem;
}

/* ============================================================================
   FORM FIELDS
   ============================================================================ */

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field span {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-heading);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
}

input[type='text'],
input[type='password'],
select {
  padding: 12px 16px;
  border-radius: 8px;
  border: 1px solid rgba(129, 182, 76, 0.2);
  background: rgba(0, 0, 0, 0.25);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input[type='text']:focus,
input[type='password']:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-muted);
}

input[type='text']::placeholder {
  color: var(--text-dim);
}

select {
  cursor: pointer;
}

.checkbox-field {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.checkbox-field input[type='checkbox'] {
  -webkit-appearance: none;
  appearance: none;
  width: 38px;
  height: 20px;
  border-radius: 10px;
  background: rgba(129, 182, 76, 0.15);
  border: 1px solid rgba(129, 182, 76, 0.25);
  cursor: pointer;
  position: relative;
  transition: background 0.2s, border-color 0.2s;
  flex-shrink: 0;
}

.checkbox-field input[type='checkbox']::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text-dim);
  transition: transform 0.2s, background 0.2s;
}

.checkbox-field input[type='checkbox']:checked {
  background: var(--accent-muted);
  border-color: var(--accent);
}

.checkbox-field input[type='checkbox']:checked::after {
  transform: translateX(18px);
  background: var(--accent);
}

.feedback {
  color: var(--danger);
  min-height: 1.3em;
  font-size: 0.9rem;
  margin: 0;
}

/* Join code section */
.join-code-section {
  animation: fadeIn 0.2s ease;
  background: rgba(129, 182, 76, 0.04);
  border: 1px solid rgba(129, 182, 76, 0.1);
  border-radius: 12px;
  padding: 18px;
}

.join-code-row {
  display: flex;
  gap: 8px;
}

.join-code-row input {
  flex: 1;
}

/* Create options section */
.create-options-section {
  animation: fadeIn 0.2s ease;
  background: rgba(129, 182, 76, 0.04);
  border: 1px solid rgba(129, 182, 76, 0.1);
  border-radius: 12px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.create-options-row {
  display: flex;
  gap: 16px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.create-options-row .field {
  flex: 1;
  min-width: 140px;
}

/* ============================================================================
   BUTTONS
   ============================================================================ */

button {
  cursor: pointer;
  border: none;
  padding: 11px 18px;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: transform 0.1s ease, box-shadow 0.2s ease, background 0.2s ease;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
  filter: grayscale(0.3);
}

button:not(:disabled):active {
  transform: translateY(1px);
}

.btn-primary {
  background: linear-gradient(to bottom, #81b64c, #629924);
  color: #272522;
  border: 1px solid rgba(129, 182, 76, 0.5);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  font-weight: 700;
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(to bottom, #a3d160, #81b64c);
  box-shadow: 0 2px 8px rgba(129, 182, 76, 0.25);
}

.btn-secondary {
  background: rgba(129, 182, 76, 0.08);
  color: var(--text);
  border: 1px solid rgba(129, 182, 76, 0.2);
}

.btn-secondary:hover:not(:disabled) {
  background: rgba(129, 182, 76, 0.15);
  border-color: rgba(129, 182, 76, 0.35);
}

.btn-danger {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid var(--danger-border);
}

.btn-danger:hover:not(:disabled) {
  background: rgba(204, 68, 68, 0.18);
  border-color: rgba(204, 68, 68, 0.45);
}

.btn-small {
  padding: 7px 14px;
  font-size: 0.82rem;
}

.btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 50%;
  background: rgba(129, 182, 76, 0.08);
  color: var(--text-muted);
  border: 1px solid rgba(129, 182, 76, 0.15);
}

.btn-icon:hover:not(:disabled) {
  background: rgba(129, 182, 76, 0.18);
  color: var(--text);
}

/* ============================================================================
   OPEN ROOMS LIST
   ============================================================================ */

.open-rooms-section {
  margin-top: 32px;
  background: rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(129, 182, 76, 0.08);
  border-radius: 12px;
  padding: 18px 20px;
}

.open-rooms-section h2 {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin: 0 0 12px 0;
  font-family: var(--font-heading);
  font-weight: 600;
}

.rooms-list {
  max-height: 240px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--text-dim) transparent;
}

.rooms-empty {
  text-align: center;
  color: var(--text-muted);
  font-style: italic;
  padding: 16px;
  font-size: 0.9rem;
  font-family: var(--font-heading);
}

.rooms-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.rooms-table th {
  text-align: left;
  padding: 8px 10px;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(129, 182, 76, 0.12);
  font-weight: 600;
}

.rooms-table td {
  padding: 10px;
  border-bottom: 1px solid rgba(129, 182, 76, 0.06);
  color: var(--text);
}

.rooms-table tr:hover td {
  background: rgba(129, 182, 76, 0.04);
}

.room-code-cell {
  font-family: 'Courier New', monospace;
  font-weight: 600;
  color: var(--accent);
}

/* ============================================================================
   WAITING PANEL
   ============================================================================ */

.waiting-panel {
  max-width: 480px;
  margin: 0 auto;
  text-align: center;
}

.waiting-title {
  font-size: 1.3rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: 0.03em;
}

.room-code-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
}

.room-code-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  font-family: var(--font-heading);
  font-weight: 600;
}

.room-code-value {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 0, 0, 0.25);
  border: 2px solid var(--accent-dim);
  border-radius: 6px;
  padding: 14px 24px;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
  font-family: 'Courier New', monospace;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent);
}

.room-code-value:hover {
  border-color: var(--accent);
  box-shadow: 0 0 8px var(--accent-muted);
}

.copy-icon {
  opacity: 0.5;
  flex-shrink: 0;
}

.copy-feedback {
  font-size: 0.8rem;
  color: var(--success);
  animation: fadeIn 0.2s ease;
}

.room-code-toggle {
  font-size: 0.7rem;
  padding: 4px 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 600;
}

.room-code-toggle-inline {
  font-size: 0.6rem;
  padding: 2px 6px;
  margin-left: 6px;
}

/* Waiting dots animation */
.waiting-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 16px;
}

.waiting-dots span {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: waitingPulse 1.4s ease-in-out infinite;
}

.waiting-dots span:nth-child(2) {
  animation-delay: 0.2s;
}

.waiting-dots span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes waitingPulse {
  0%, 80%, 100% {
    opacity: 0.2;
    transform: scale(0.8);
  }
  40% {
    opacity: 1;
    transform: scale(1.1);
  }
}

.waiting-subtext {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 20px;
  font-family: var(--font-heading);
  font-style: italic;
}

/* ============================================================================
   GAME PANEL
   ============================================================================ */

.game-panel {
  max-width: 840px;
  margin: 0 auto;
  padding: 12px 20px;
}

.game-status-banner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 20;
  text-align: center;
  padding: 12px 28px;
  background: rgba(0, 0, 0, 0.75);
  border: 1px solid rgba(129, 182, 76, 0.3);
  border-radius: 8px;
  color: var(--accent-bright);
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  pointer-events: none;
  white-space: nowrap;
  opacity: 1;
  transition: opacity 1.5s ease;
}

.game-status-banner:empty {
  display: none;
}

.game-status-banner.fading {
  opacity: 0;
}

.game-status-banner.flash {
  background: rgba(80, 20, 20, 0.8);
  border-color: rgba(200, 60, 60, 0.4);
  color: var(--danger);
}

/* .game-layout - removed, replaced by .game-section */

/* ============================================================================
   BOARD AREA
   ============================================================================ */

.board-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.board-container {
  position: relative;
  width: 420px;
}

.board {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  border: 10px solid var(--board-border);
  border-radius: 2px;
  overflow: hidden;
  aspect-ratio: 1;
  box-shadow:
    0 0 0 3px var(--board-border-outer),
    0 8px 30px rgba(0, 0, 0, 0.6);
}

/* ============================================================================
   SQUARES
   ============================================================================ */

.square {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  user-select: none;
  width: 100%;
  height: 100%;
  padding: 0;
  border: none;
  border-radius: 0;
  cursor: pointer;
  transition: background 0.15s ease;
  font-family: inherit;
}

.square.light {
  background: var(--board-light);
}

.square.dark {
  background: var(--board-dark);
}

.piece-icon {
  width: 85%;
  height: 85%;
  max-width: 90%;
  max-height: 90%;
  pointer-events: none;
  display: block;
  object-fit: contain;
}

/* Selected square */
.square.selected {
  box-shadow: inset 0 0 0 3px var(--accent);
  background: rgba(129, 182, 76, 0.35) !important;
}

/* Last move highlight (disabled) */

/* Legal move highlight */
.square.legal-move {
  background: rgba(255, 255, 255, 0.18) !important;
}

/* Legal capture highlight */
.square.legal-capture {
  background: rgba(255, 120, 100, 0.22) !important;
}

/* King in check */
.square.in-check {
  background: rgba(204, 68, 68, 0.4) !important;
  box-shadow: inset 0 0 10px rgba(204, 68, 68, 0.5);
}

/* ============================================================================
   PLAYER BARS (above/below board)
   ============================================================================ */

.player-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  max-width: 420px;
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 0.9rem;
}

.opponent-bar {
  background: rgba(0, 0, 0, 0.18);
  border: 1px solid rgba(129, 182, 76, 0.08);
}

.my-bar {
  background: rgba(0, 0, 0, 0.18);
  border: 1px solid rgba(129, 182, 76, 0.08);
}

.player-bar-name {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
  max-width: 160px;
  letter-spacing: 0.02em;
}

.captured-pieces {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: wrap;
  min-height: 20px;
}

.captured-piece-icon {
  width: 18px;
  height: 18px;
  opacity: 0.8;
  filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.4));
}

/* ============================================================================
   BOARD CONTROLS
   ============================================================================ */

.board-controls {
  display: flex;
  gap: 10px;
  width: 100%;
  max-width: 560px;
  justify-content: center;
  margin-top: 4px;
}

/* ============================================================================
   SIDEBAR
   ============================================================================ */

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.sidebar-room-code {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--sidebar-bg);
  border: 1px solid rgba(129, 182, 76, 0.1);
  border-radius: 4px;
}

.sidebar-label {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  font-weight: 600;
}

.sidebar-value {
  font-family: 'Courier New', monospace;
  font-weight: 700;
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
}

/* ============================================================================
   TURN INDICATOR
   ============================================================================ */

.turn-indicator {
  text-align: center;
  padding: 12px 14px;
  border-radius: 4px;
  background: var(--sidebar-bg);
  border: 1px solid rgba(129, 182, 76, 0.1);
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: all 0.3s ease;
  letter-spacing: 0.03em;
}

.turn-indicator.my-turn {
  background: var(--accent-muted);
  border-color: rgba(129, 182, 76, 0.3);
  color: var(--accent-bright);
}

.turn-indicator.opponent-turn {
  background: rgba(0, 0, 0, 0.15);
  border-color: rgba(129, 182, 76, 0.06);
  color: var(--text-dim);
}

/* ============================================================================
   MOVE HISTORY
   ============================================================================ */

.sidebar-section {
  background: var(--sidebar-bg);
  border-radius: 4px;
  border: 1px solid rgba(129, 182, 76, 0.1);
  padding: 12px;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* --- Mutator Panel (right sidebar) -------------------------------- */
.mutator-panel-section {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.mutator-panel {
  position: relative;
  overflow: hidden;
  min-height: 200px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* When history cards are showing, allow scrolling with themed scrollbar */
.mutator-panel:has(.mutator-history-card) {
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: rgba(129, 182, 76, 0.35) rgba(0, 0, 0, 0.2);
}

.mutator-panel:has(.mutator-history-card)::-webkit-scrollbar {
  width: 6px;
}

.mutator-panel:has(.mutator-history-card)::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 3px;
}

.mutator-panel:has(.mutator-history-card)::-webkit-scrollbar-thumb {
  background: rgba(129, 182, 76, 0.35);
  border-radius: 3px;
}

.mutator-panel:has(.mutator-history-card)::-webkit-scrollbar-thumb:hover {
  background: rgba(129, 182, 76, 0.55);
}

.mutator-panel-empty {
  color: var(--text-dim);
  text-align: center;
  font-style: italic;
  font-family: var(--font-heading);
  padding: 16px 8px;
  font-size: 0.85rem;
}

/* --- Mutator Card ------------------------------------------------- */
.mutator-card {
  background: #21201d;
  border: 1px solid rgba(129, 182, 76, 0.15);
  border-radius: 6px;
  padding: 14px 12px;
  text-align: left;
  will-change: transform;
  transition: border-color 0.2s, box-shadow 0.2s;
  flex-shrink: 0;
}

.mutator-card[data-status="choice"] {
  cursor: pointer;
}

.mutator-card[data-status="choice"]:hover {
  border-color: rgba(129, 182, 76, 0.4);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.mutator-card.non-chooser {
  pointer-events: none;
}

.mutator-card.selected {
  border-color: rgba(129, 182, 76, 0.7);
  box-shadow: 0 0 16px rgba(129, 182, 76, 0.25), 0 4px 12px rgba(0, 0, 0, 0.3);
}

.mutator-card[data-status="persistent"] {
  border-left: 3px solid rgba(129, 182, 76, 0.5);
  cursor: default;
}

.mutator-card-name {
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 700;
  margin: 0 0 4px 0;
  font-family: var(--font-heading);
  line-height: 1.2;
}

.mutator-card-desc {
  color: var(--text-muted);
  font-size: 0.75rem;
  line-height: 1.4;
  margin: 0 0 8px 0;
}

.mutator-card-badge {
  display: inline-block;
  background: rgba(129, 182, 76, 0.12);
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 3px;
}

.mutator-card-remaining {
  display: inline-block;
  background: rgba(129, 182, 76, 0.1);
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 3px;
  margin-left: 4px;
}

/* Sidebar status */
.sidebar-status {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
  min-height: 1.3em;
}

/* ============================================================================
   MODALS (shared)
   ============================================================================ */

.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 6, 3, 0.75);
  backdrop-filter: blur(4px);
  z-index: 1050;
  animation: fadeIn 0.2s ease;
}

.modal.hidden {
  display: none;
}

.modal-content {
  background: linear-gradient(to bottom, rgba(40, 28, 16, 0.97), rgba(26, 18, 11, 0.98));
  border: 1px solid rgba(129, 182, 76, 0.2);
  border-radius: 14px;
  padding: 28px 32px;
  box-shadow:
    0 1px 0 rgba(129, 182, 76, 0.1) inset,
    0 30px 60px rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: min(440px, 92vw);
  text-align: center;
}

.modal-content h2 {
  margin: 0;
  font-size: 1.6rem;
  color: var(--text);
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* ============================================================================
   PROMOTION MODAL
   ============================================================================ */

.promotion-modal-content {
  max-width: min(380px, 90vw);
}

.promotion-choices {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.promotion-choice {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  border-radius: 6px;
  background: rgba(129, 182, 76, 0.06);
  border: 2px solid rgba(129, 182, 76, 0.15);
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--text);
  font-family: var(--font-heading);
  font-size: 0.85rem;
}

.promotion-choice:hover {
  background: var(--accent-muted);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.promotion-piece-img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

/* ============================================================================
   GAME OVER MODAL
   ============================================================================ */

.game-over-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.game-over-buttons button {
  flex: 1;
  min-width: 120px;
}

/* ============================================================================
   FOOTER
   ============================================================================ */

.footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 10px 24px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-dim);
  background: rgba(14, 8, 4, 0.9);
  border-top: 1px solid rgba(129, 182, 76, 0.06);
  z-index: 10;
}

.footer-copyright {
  color: var(--text-dim);
}

.footer-separator {
  margin: 0 8px;
  opacity: 0.4;
}

.footer-link {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: var(--accent);
  text-decoration: underline;
}

.footer-link:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

.footer-version {
  color: var(--text-dim);
  opacity: 0.5;
  font-size: 0.75em;
  text-decoration: none;
}

.footer-version:hover {
  opacity: 0.8;
}

/* ============================================================================
   GLOBAL STATUS
   ============================================================================ */

.global-status {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 2000;
  text-align: center;
  pointer-events: none;
}

/* ============================================================================
   ANIMATIONS
   ============================================================================ */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */

/* Old 820px breakpoint removed - replaced by 1024px in .game-section */

@media (max-width: 560px) {
  body {
    padding: 10px;
    padding-bottom: 52px;
  }

  .panel {
    padding: 20px 16px;
  }

  .board {
    border-width: 6px;
  }

  .landing-buttons {
    flex-direction: column;
  }

  .landing-buttons button {
    min-width: 100%;
  }

  .game-over-buttons {
    flex-direction: column;
  }

  .game-over-buttons button {
    min-width: 100%;
  }

  .promotion-choices {
    gap: 8px;
  }

  .promotion-choice {
    padding: 8px 12px;
  }

  .promotion-piece-img {
    width: 36px;
    height: 36px;
  }

  .sidebar {
    flex-direction: column;
  }

  .sidebar > * {
    flex: 1 1 auto;
  }

}

/* ═══════════════════════════════════════════════════════════════════
   MUTATOR SYSTEM STYLES
   ═══════════════════════════════════════════════════════════════════ */

/* --- Rules Sidebar (left of board) --------------------------------- */
.rules-sidebar {
  background: #21201d;
  border-radius: 4px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 600px;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: none;
  border: 1px solid rgba(129, 182, 76, 0.12);
}

.rules-sidebar::-webkit-scrollbar {
  display: none;
}

.rules-sidebar-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 4px 0;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(129, 182, 76, 0.12);
  font-family: var(--font-heading);
}

/* --- Mutator History (left sidebar) ------------------------------- */
.mutator-history-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow-y: auto;
  scrollbar-width: none;
}

.mutator-history-list::-webkit-scrollbar {
  display: none;
}

.mutator-history-empty {
  color: var(--text-dim);
  font-size: 0.8rem;
  font-style: italic;
  text-align: center;
  margin: 16px 0;
  font-family: var(--font-heading);
}

.mutator-history-item {
  background: rgba(129, 182, 76, 0.06);
  border-radius: 4px;
  padding: 6px 8px;
  cursor: default;
  transition: background 0.2s;
  position: relative;
  border-left: 3px solid transparent;
}

.mutator-history-item[data-type="instant"] {
  border-left-color: rgba(129, 182, 76, 0.5);
}

.mutator-history-item[data-type="expired"] {
  border-left-color: rgba(140, 120, 90, 0.3);
  opacity: 0.7;
}

.mutator-history-item:hover {
  background: rgba(129, 182, 76, 0.12);
}

.mutator-history-item .history-name {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.2;
}

.mutator-history-item .history-type {
  display: block;
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 2px;
}

/* Tooltip on hover */
.mutator-history-item::after {
  content: attr(title);
  position: absolute;
  left: calc(100% + 8px);
  top: 50%;
  transform: translateY(-50%);
  background: #272522;
  color: var(--text);
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 0.78rem;
  line-height: 1.4;
  max-width: 220px;
  white-space: normal;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
  z-index: 100;
  border: 1px solid rgba(129, 182, 76, 0.2);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.mutator-history-item:hover::after {
  opacity: 1;
}

/* --- Mutator Panel Waiting Text ------------------------------------ */
.mutator-waiting {
  color: var(--text-dim);
  font-size: 0.8rem;
  text-align: center;
  padding: 8px;
  font-family: var(--font-heading);
  font-style: italic;
}

/* --- Board Overlays (mines, portals, etc.) -------------------------- */
.board-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4em;
  pointer-events: none;
  z-index: 3;
  opacity: 0.85;
}

.board-overlay-mine { color: #ff5555; }
.board-overlay-blocked { color: #888; font-weight: bold; font-size: 1.6em; }
.board-overlay-pit { color: #8b0000; }
.board-overlay-portal { color: #7b68ee; }
.board-overlay-treasure { color: #ffd700; }
.board-overlay-death { color: #ffcc00; text-shadow: 0 0 4px rgba(255, 200, 0, 0.6); }
.board-overlay-tornado { font-size: 1.6em; }
.board-overlay-frozen { opacity: 0.45; font-size: 1.1em; }
.board-overlay-invulnerable { font-size: 1.1em; }
.board-overlay-bomb { color: #ff4444; }
.board-overlay-mitosis { color: #7fff7f; font-size: 1.1em; text-shadow: 0 0 6px rgba(127, 255, 127, 0.5); }
.board-overlay-nomansland {
  color: #cc2222;
  font-weight: bold;
  font-size: 1.4em;
  opacity: 0.55;
  background: rgba(180, 30, 30, 0.12);
}
.board-overlay-iceage {
  color: #a8d8ea;
  font-size: 1.3em;
  opacity: 0.6;
  background: rgba(135, 206, 235, 0.18);
  text-shadow: 0 0 3px rgba(135, 206, 235, 0.5);
}
.board-overlay-timebomb {
  color: #ff6633;
  font-size: 1.2em;
  opacity: 0.55;
  background: rgba(255, 80, 20, 0.12);
  text-shadow: 0 0 4px rgba(255, 80, 20, 0.5);
}

/* --- Target Selection Bar ------------------------------------------- */
.target-selection-bar {
  background: rgba(129, 182, 76, 0.1);
  border: 1px solid rgba(129, 182, 76, 0.25);
  border-radius: 4px;
  padding: 8px 16px;
  text-align: center;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 500;
  margin-top: 8px;
  animation: fadeIn 0.2s ease;
}

.square-highlight-target {
  box-shadow: inset 0 0 0 3px rgba(129, 182, 76, 0.6);
  cursor: pointer;
}

.square-highlight-sophie {
  box-shadow: inset 0 0 0 4px rgba(220, 38, 38, 0.85);
  cursor: pointer;
}

/* --- RPS Modal ------------------------------------------------------ */
.rps-modal-content {
  text-align: center;
}

.rps-context {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

.rps-choices {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 20px;
}

.rps-btn {
  background: #21201d;
  border: 2px solid rgba(129, 182, 76, 0.2);
  border-radius: 6px;
  color: var(--text);
  font-family: inherit;
  font-size: 1.1rem;
  font-weight: 600;
  padding: 16px 28px;
  cursor: pointer;
  transition: transform 0.4s ease, border-color 0.15s, background 0.15s, opacity 0.4s ease;
}

.rps-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  border-color: rgba(129, 182, 76, 0.5);
  background: rgba(129, 182, 76, 0.1);
}

.rps-btn:active {
  transform: translateY(0);
}

.rps-btn.rps-fade-out {
  opacity: 0;
  transform: scale(0.8);
  pointer-events: none;
}

/* --- RPS Showdown Phase --- */
.rps-showdown {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-bottom: 20px;
}

.rps-player-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.rps-card-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.rps-card {
  width: 100px;
  height: 130px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
}

.rps-card-you {
  background: linear-gradient(180deg, #2f3d25 0%, #1f2d18 100%);
  border: 2px solid var(--accent);
  box-shadow: 0 4px 16px rgba(129, 182, 76, 0.25);
}

.rps-card-opp {
  perspective: 600px;
  background: none;
  border: none;
}

.rps-card-inner {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.6s ease;
}

.rps-card-opp.flipped .rps-card-inner {
  transform: rotateY(180deg);
}

.rps-card-front,
.rps-card-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-size: 1.3rem;
  font-weight: 700;
}

.rps-card-front {
  background: linear-gradient(180deg, #3a3530 0%, #2a2520 100%);
  border: 2px solid rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.4);
  font-size: 2rem;
}

.rps-card-back {
  background: linear-gradient(180deg, #3d2525 0%, #2d1818 100%);
  border: 2px solid #c94040;
  box-shadow: 0 4px 16px rgba(201, 64, 64, 0.25);
  transform: rotateY(180deg);
  color: var(--text);
}

.rps-vs {
  font-size: 1.2rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.3);
  letter-spacing: 0.1em;
}

.rps-outcome {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  padding: 12px 16px;
  background: rgba(129, 182, 76, 0.06);
  border-radius: 6px;
  margin-top: 4px;
}

/* --- Animation ------------------------------------------------------ */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* --- Mutator Settings --------------------------------------- */
.mutator-settings-toggle {
  background: rgba(129, 182, 76, 0.06);
  border: 1px solid rgba(129, 182, 76, 0.18);
  border-radius: 8px;
  color: var(--text-muted);
  padding: 10px 14px;
  width: 100%;
  text-align: left;
  cursor: pointer;
  font-size: 0.85rem;
  margin-top: 8px;
}
.mutator-settings-toggle:hover { background: rgba(129, 182, 76, 0.1); }
.mutator-settings-summary { color: var(--text-dim); font-size: 0.8rem; }
.mutator-settings-panel {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(129, 182, 76, 0.1);
  border-radius: 8px;
  padding: 12px;
  margin-top: 8px;
  max-height: 350px;
  overflow-y: auto;
  scrollbar-width: none;
}
.mutator-settings-panel::-webkit-scrollbar { display: none; }
.mutator-settings-controls {
  display: flex;
  gap: 16px;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(129, 182, 76, 0.1);
}
.mutator-settings-controls .toggle-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}
.mutator-cat-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 4px;
  cursor: pointer;
  font-size: 0.82rem;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(129, 182, 76, 0.05);
}
.mutator-cat-header:hover { background: rgba(129, 182, 76, 0.04); }
.mutator-cat-arrow { font-size: 0.7rem; width: 12px; }
.cat-toggle { margin-left: auto; font-size: 0.75rem; }
.mutator-cat-rules {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px 10px;
  padding: 4px 0 6px 18px;
}
.mutator-rule-toggle {
  font-size: 0.75rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  padding: 1px 0;
}
.mutator-rule-toggle:hover { color: var(--text-muted); }

/* --- Coin Flip ---------------------------------------------- */
.coin-flip-content {
  text-align: center;
  padding: 24px;
}
.coin {
  width: 120px;
  height: 120px;
  margin: 20px auto;
  position: relative;
  transform-style: preserve-3d;
  cursor: pointer;
  transition: transform 0.1s;
}
.coin:hover { transform: scale(1.05); }
.coin.flipping {
  cursor: default;
  animation: coinFlip 1.5s ease-out forwards;
}
.coin.flipping.land-tails {
  animation: coinFlipTails 1.5s ease-out forwards;
}
.coin-face {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  font-weight: bold;
  backface-visibility: hidden;
  font-family: var(--font-heading);
}
.coin-heads {
  background: linear-gradient(135deg, #d4a030, #b08020);
  color: #4a3010;
  border: 3px solid #a07020;
}
.coin-tails {
  background: linear-gradient(135deg, #9098a8, #707880);
  color: #2a3040;
  border: 3px solid #607080;
  transform: rotateY(180deg);
}
@keyframes coinFlip {
  0%   { transform: rotateY(0deg); }
  80%  { transform: rotateY(1800deg); }
  100% { transform: rotateY(1800deg); }
}
@keyframes coinFlipTails {
  0%   { transform: rotateY(0deg); }
  80%  { transform: rotateY(1980deg); }
  100% { transform: rotateY(1980deg); }
}
.coin-flip-instruction { color: var(--text-muted); font-size: 0.9rem; margin-top: 12px; }
.coin-flip-result-text {
  font-size: 1.1rem;
  font-weight: bold;
  margin-top: 12px;
  font-family: var(--font-heading);
}
.coin-flip-result-text.heads { color: #d4a030; }
.coin-flip-result-text.tails { color: #9098a8; }

/* Risk it Rook coin flip */
.risk-it-rook-content { min-width: 280px; }
.risk-phase-label {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 12px;
  font-family: var(--font-heading);
}
.risk-coins-row {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin: 16px 0;
}

/* Manual coin flip bar */
.coin-flip-manual {
  background: rgba(129, 182, 76, 0.08);
  border: 1px solid rgba(129, 182, 76, 0.2);
  border-radius: 4px;
  padding: 8px 16px;
  text-align: center;
  color: var(--accent);
  font-size: 0.85rem;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}
.coin-manual-btn {
  background: rgba(129, 182, 76, 0.12);
  border: 1px solid rgba(129, 182, 76, 0.3);
  border-radius: 4px;
  color: var(--accent);
  padding: 6px 16px;
  cursor: pointer;
  font-weight: bold;
}
.coin-manual-btn:hover { background: rgba(129, 182, 76, 0.22); }

/* ═══════════════════════════════════════════════════════════════════
   PIECE & BOARD EFFECT ANIMATIONS
   ═══════════════════════════════════════════════════════════════════ */

/* --- Ghost Piece (animated clone during slides) ----------------- */
.piece-ghost {
  position: absolute;
  z-index: 10;
  pointer-events: none;
  will-change: transform;
}

/* --- Piece Settle (thump on landing) ---------------------------- */
@keyframes pieceSettle {
  0%   { transform: scale(1.06); }
  50%  { transform: scale(0.97); }
  100% { transform: scale(1.0); }
}
.piece-settling {
  animation: pieceSettle 150ms ease-out;
}

/* --- Piece Captured (shrink + fade) ----------------------------- */
@keyframes pieceCaptured {
  0%   { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(0.5); }
}
.piece-vanishing {
  animation: pieceCaptured 200ms ease-in forwards;
}

/* --- Piece Appear (materialize) --------------------------------- */
@keyframes pieceAppear {
  0%   { opacity: 0; transform: scale(0.3); }
  100% { opacity: 1; transform: scale(1); }
}
.piece-appearing {
  animation: pieceAppear 250ms ease-out;
}

/* --- Overlay Entrance: Drop In (mines, bombs, pits) ------------ */
@keyframes overlayDropIn {
  0%   { opacity: 0; transform: scale(0.3) translateY(-15px); }
  60%  { opacity: 1; transform: scale(1.1) translateY(2px); }
  100% { opacity: 0.85; transform: scale(1) translateY(0); }
}
.board-overlay-entering-drop {
  animation: overlayDropIn 350ms cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* --- Overlay Entrance: Frost (frozen, ice age) ----------------- */
@keyframes overlayFrost {
  0%   { opacity: 0; transform: scale(0); }
  60%  { opacity: 0.5; transform: scale(1.05); }
  100% { opacity: 0.6; transform: scale(1); }
}
.board-overlay-entering-frost {
  animation: overlayFrost 400ms ease-out forwards;
}

/* --- Overlay Entrance: Swirl (portals) ------------------------- */
@keyframes overlaySwirl {
  0%   { opacity: 0; transform: scale(0) rotate(-180deg); }
  100% { opacity: 0.85; transform: scale(1) rotate(0deg); }
}
.board-overlay-entering-swirl {
  animation: overlaySwirl 450ms cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* --- Overlay Entrance: Flash (death/lightning) ----------------- */
@keyframes overlayFlash {
  0%   { opacity: 0; }
  15%  { opacity: 1; }
  35%  { opacity: 0.3; }
  55%  { opacity: 1; }
  100% { opacity: 0.85; }
}
.board-overlay-entering-flash {
  animation: overlayFlash 300ms ease-out forwards;
}

/* --- Overlay Entrance: Spin (tornado) -------------------------- */
@keyframes overlaySpin {
  0%   { opacity: 0; transform: rotate(-360deg) scale(0); }
  100% { opacity: 0.85; transform: rotate(0deg) scale(1); }
}
.board-overlay-entering-spin {
  animation: overlaySpin 500ms cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* --- Overlay Entrance: Fade Scale (generic) -------------------- */
@keyframes overlayFadeScale {
  0%   { opacity: 0; transform: scale(0.5); }
  100% { opacity: 0.85; transform: scale(1); }
}
.board-overlay-entering-fade {
  animation: overlayFadeScale 250ms ease-out forwards;
}

/* --- Overlay Exit ---------------------------------------------- */
@keyframes overlayFadeOut {
  0%   { opacity: inherit; transform: scale(1); }
  100% { opacity: 0; transform: scale(0.6); }
}
.board-overlay-exiting {
  animation: overlayFadeOut 250ms ease-in forwards;
  pointer-events: none;
}

/* ============================================================================
   3D FLIP TURN INDICATOR
   ============================================================================ */

.title-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  perspective: 1000px;
  margin-bottom: 0;
  /* Match opponent player bar height so turn indicator + choice panel align with opponent bar + board */
  min-height: 34px;
  box-sizing: border-box;
}

.title-card {
  min-width: 0;
  width: 100%;
  min-height: 36px;
  padding: 6px 16px;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 800;
  line-height: 1.15;
  border-radius: 6px;
  box-shadow:
    0 4px 12px rgba(0, 0, 0, 0.4),
    0 0 20px rgba(129, 182, 76, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.6s ease;
}

.title-card.flip {
  transform: rotateY(180deg);
}

.card-face {
  position: absolute;
  inset: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: 6px;
}

.card-front {
  transform: translateZ(0.1px);
}

.card-back {
  transform: rotateY(180deg) translateZ(0.1px);
}

.card-face.white-turn {
  background:
    linear-gradient(135deg, rgba(255,255,255,0.4) 0%, transparent 50%),
    linear-gradient(180deg, #ffffff 0%, #f0f0f0 30%, #e0e0e0 70%, #d5d5d5 100%);
  color: #1a1a1a;
  border: 2px solid #fff;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.8);
}

.card-face.black-turn {
  background:
    linear-gradient(135deg, rgba(255,255,255,0.08) 0%, transparent 50%),
    linear-gradient(180deg, #4a4744 0%, #3d3a37 30%, #2d2b28 70%, #222120 100%);
  color: var(--text);
  border: 2px solid #4a4643;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

/* ============================================================ */
/* SPECTATOR MODE                                                */
/* ============================================================ */

.spectator-banner {
  background: var(--accent);
  color: var(--bg-deep);
  text-align: center;
  padding: 0.35rem 0.75rem;
  font-family: 'Nunito', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.05em;
  border-radius: 4px;
  margin-bottom: 0.5rem;
}

.spectator-count {
  font-size: 0.8rem;
  color: var(--text-muted, #8a7a6a);
  text-align: center;
  margin: 0.25rem 0;
}

.disable-spectating-btn {
  font-size: 0.75rem;
}

.active-games-heading {
  font-family: 'Nunito', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent);
  margin: 1rem 0 0.5rem;
}

.active-games-table .room-watch-btn {
  font-size: 0.75rem;
}

/* ============================================================================
   GAME SECTION LAYOUT (Variant A - info bar + board + choice panel + bottom)
   ============================================================================ */

.game-section {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 20px;
  max-width: 800px;
  margin: 0 auto;
}

.game-section .board-area {
  flex: 0 0 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* === RIGHT COLUMN (turn indicator + choice panel) === */
.choice-column {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 260px;
  min-width: 220px;
  flex-shrink: 0;
  /* title-wrapper (34px) + 8px gap + panel = should align with opponent bar (34px) + 8px gap + board (440px) */
  height: 482px;
}

/* === MUTATOR CHOICE PANEL (right of board) === */
.mutator-choice-panel {
  width: auto;
  flex: 1;
  position: relative;
  isolation: isolate;
  background:
    radial-gradient(ellipse 100% 80% at 50% 0%, rgba(129, 182, 76, 0.04) 0%, transparent 40%),
    linear-gradient(180deg, #2d2a28 0%, #252320 40%, #1f1d1b 80%, #1a1917 100%);
  border: 2px solid var(--panel-border);
  border-radius: 8px;
  overflow-y: auto;
  overflow-x: hidden;
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: stretch;
  gap: 8px;
  padding: 8px;
}

.mutator-choice-panel.hidden {
  display: flex !important;
  pointer-events: none;
}

/* === INFO BAR (Variant A) === */
.info-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 12px;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  margin: 0 auto 6px;
  max-width: 800px;
  width: 100%;
  box-sizing: border-box;
}

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

.info-bar-label {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.info-bar-value {
  color: var(--accent);
  font-weight: 700;
}

/* === ACTIVE MUTATORS BOTTOM ROW === */
.active-mutators-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  padding: 8px;
  max-width: 800px;
  margin: 8px auto 0;
  min-height: 60px;
}

.active-mutator-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-content: center;
  padding: 8px 24px;
  border: 3px solid var(--accent);
  border-radius: 6px;
  box-shadow:
    0 4px 12px rgba(37, 123, 47, 0.4),
    0 0 20px rgba(129, 182, 76, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(ellipse 120% 80% at 50% 40%, rgba(129, 182, 76, 0.12) 0%, transparent 50%),
    linear-gradient(180deg, #2f2d2a 0%, #262422 35%, #1f1d1b 75%, #1a1816 100%);
  min-width: 100px;
  max-width: 350px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.active-mutator-card:hover {
  transform: translateY(-2px);
  box-shadow:
    0 6px 20px rgba(0, 0, 0, 0.5),
    0 0 30px rgba(129, 182, 76, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.active-mutator-card .rule-desc {
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 600;
  font-style: italic;
  text-align: center;
  margin: 0;
}

.active-mutator-card .rule-duration {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 400;
  text-align: center;
  margin: 0;
}

/* === INSTANT TOOLTIPS === */
[data-tooltip] {
  position: relative;
  cursor: default;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 12px;
  background: rgba(0, 0, 0, 0.9);
  color: #f0f0f0;
  font-size: 0.8rem;
  font-weight: 400;
  font-style: normal;
  line-height: 1.4;
  border-radius: 6px;
  white-space: normal;
  max-width: 260px;
  width: max-content;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: none;
  z-index: 100;
  margin-bottom: 6px;
}

[data-tooltip]:hover::after {
  opacity: 1;
  visibility: visible;
}

/* Variant visibility helpers */
.variant-a-only { display: flex; }
.variant-b-only { display: none; }
body.variant-b .variant-a-only { display: none; }
body.variant-b .variant-b-only { display: flex; }

/* Responsive: stack choice panel below on narrow viewports */
@media (max-width: 1024px) {
  .game-section {
    flex-direction: column;
    align-items: center;
  }
  .game-section .board-area {
    flex: 0 0 auto;
    width: 90vw;
    max-width: 420px;
  }
  .board-container {
    width: 100%;
  }
  .choice-column {
    width: 90vw;
    max-width: 420px;
  }
  .mutator-choice-panel {
    min-height: 200px;
  }
}

/* === CHOICE CARDS (Doug-style) === */
.mutator-choice-panel .mutator-card {
  flex: 1;
  background:
    radial-gradient(ellipse 100% 80% at 50% 0%, rgba(129, 182, 76, 0.06) 0%, transparent 40%),
    linear-gradient(180deg, #2d2a28 0%, #252320 40%, #1f1d1b 80%, #1a1917 100%);
  border: 2px solid #ffffff;
  border-radius: 6px;
  padding: 8px 10px;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.mutator-choice-panel .mutator-card[data-status="choice"]:hover {
  transform: translateY(-3px);
  border-color: #a3d160;
  box-shadow:
    0 4px 14px rgba(0, 0, 0, 0.5),
    0 0 20px rgba(129, 182, 76, 0.25);
}

.mutator-choice-panel .mutator-card-name {
  color: #a3d160;
  font-size: 0.85rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 2px;
}

.mutator-choice-panel .mutator-card-desc {
  font-style: italic;
  font-size: 0.7rem;
  text-align: center;
  margin-bottom: 2px;
}

.mutator-choice-panel .mutator-card-badge {
  font-size: 0.65rem;
  padding: 1px 6px;
}

/* === HISTORY CARDS (shown in choice panel when idle) === */
.mutator-history-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 10px;
  background: linear-gradient(180deg, #2a2826 0%, #222120 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 5px;
  cursor: default;
  transition: border-color 0.2s ease, background 0.2s ease;
  flex-shrink: 0;
  min-height: 0;
}

.mutator-history-card:hover {
  border-color: rgba(163, 209, 96, 0.5);
  background: linear-gradient(180deg, #33302e 0%, #2a2826 100%);
}

.history-card-name {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.72rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  min-width: 0;
}

.history-card-type {
  color: rgba(255, 255, 255, 0.35);
  font-size: 0.6rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  flex-shrink: 0;
  margin-left: 8px;
}

/* When history cards are in the panel, top-align */
.mutator-choice-panel:has(.mutator-history-card) {
  justify-content: flex-start;
}

/* Floating tooltip (JS-positioned, escapes overflow containers) */
.floating-tooltip {
  position: fixed;
  transform: translateX(-50%) translateY(-100%);
  padding: 6px 12px;
  background: rgba(0, 0, 0, 0.92);
  color: #f0f0f0;
  font-size: 0.8rem;
  font-weight: 400;
  font-style: normal;
  line-height: 1.4;
  border-radius: 6px;
  white-space: normal;
  max-width: 240px;
  width: max-content;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  z-index: 9999;
}

/* ============================================================================
   ANIMATED BACKGROUND
   ============================================================================ */

.new-rules-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
  border-radius: 6px;
  opacity: 50%;
}

/* === SLIM SIDEBAR (Variant B) === */
.slim-sidebar {
  width: 130px;
  min-width: 110px;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-self: stretch;
}

.slim-sidebar-room {
  display: flex;
  flex-direction: column;
  gap: 2px;
}