/* ============================================
   801UU Pages — 所有页面样式
   ============================================ */

/* ---- Page Content ---- */
.page-content {
  min-height: calc(100vh - var(--header-height) - 200px);
  padding-top: var(--space-6);
  padding-bottom: var(--space-8);
  transition: opacity 100ms ease;
}

/* ---- Header ---- */
.app-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  height: var(--header-height);
  background: var(--color-background);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
}

.brand-text {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--color-primary);
  letter-spacing: -0.5px;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  display: flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-primary);
  background: var(--color-primary-container);
}

.nav-link.active {
  color: var(--color-primary);
  background: var(--color-primary-container);
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.balance-display {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-primary);
}

/* User Menu */
.user-menu {
  position: relative;
}

.dropdown {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  min-width: 180px;
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-1) 0;
  box-shadow: var(--shadow-lg);
  z-index: var(--z-dropdown);
}

.dropdown-item {
  display: block;
  width: 100%;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  text-align: left;
  cursor: pointer;
  transition: background var(--transition-fast);
  border: none;
  background: none;
}

.dropdown-item:hover {
  background: var(--color-surface);
}

.text-error {
  color: var(--color-error) !important;
}

.text-primary {
  color: var(--color-primary) !important;
}

.dropdown-divider {
  height: 1px;
  background: var(--color-border-light);
  margin: var(--space-1) 0;
}

/* ---- Mobile Drawer ---- */
.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: var(--z-modal-backdrop);
}

.drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  max-width: 80vw;
  height: 100%;
  background: var(--color-background);
  z-index: var(--z-modal);
  display: flex;
  flex-direction: column;
  animation: drawerIn 200ms ease forwards;
}

@keyframes drawerIn {
  from { transform: translateX(-100%); }
  to { transform: translateX(0); }
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.drawer-nav {
  flex: 1;
  padding: var(--space-3) 0;
  overflow-y: auto;
}

.drawer-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-base);
  color: var(--color-text-primary);
  transition: background var(--transition-fast);
  min-height: 48px;
}

.drawer-link:hover, .drawer-link.active {
  background: var(--color-primary-container);
  color: var(--color-primary);
}

.drawer-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-3) 0;
}

.mobile-only {
  display: none;
}

/* ---- Footer ---- */
.app-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-8) 0 var(--space-6);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: var(--space-8);
}

.footer-brand {
  max-width: 300px;
}

.footer-desc {
  margin-top: var(--space-2);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
}

.footer-links {
  display: flex;
  gap: var(--space-8);
}

.footer-col h4 {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.footer-col a {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  padding: var(--space-1) 0;
}

.footer-col a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
}

.tg-link {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--color-text-secondary);
}

/* ---- Auth Page ---- */
.auth-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: var(--space-5);
  background: var(--color-surface);
}

.auth-card {
  width: 100%;
  max-width: 440px;
  padding: var(--space-8);
}

.auth-header {
  text-align: center;
  margin-bottom: var(--space-6);
}

.auth-subtitle {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.auth-footer {
  margin-top: var(--space-5);
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-disabled);
  display: flex;
  gap: var(--space-3);
}

.input-hint {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-text-disabled);
}

/* ---- Lobby ---- */
.lobby-hero {
  text-align: center;
  padding: var(--space-8) 0;
}

.lobby-hero h1 {
  font-size: var(--text-4xl);
  font-weight: var(--font-semibold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-3);
}

.lobby-hero p {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.online-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.game-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.game-card {
  text-align: center;
  padding: var(--space-7);
}

.game-card-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-container);
  border-radius: var(--radius-lg);
}

.game-card-icon .material-symbols-outlined {
  font-size: 32px;
  color: var(--color-primary);
}

.game-card-title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-2);
}

.game-card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-3);
}

.game-card-meta {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
}

/* Leaderboard */
.leaderboard-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.leaderboard-item {
  display: flex;
  align-items: center;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border-light);
  font-size: var(--text-sm);
}

.lb-rank {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-semibold);
  color: var(--color-text-secondary);
  background: var(--color-surface-variant);
  border-radius: var(--radius-full);
  flex-shrink: 0;
  margin-right: var(--space-3);
}

.lb-name {
  flex: 1;
}

.lb-value {
  font-weight: var(--font-medium);
}

/* ---- Baccarat ---- */
.baccarat-page {
  padding-bottom: var(--space-8);
}

.bac-info-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
}

.bac-info-left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.bac-info-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.bac-table {
  position: relative;
  padding: var(--space-7);
  min-height: 200px;
}

.bac-table-inner {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: var(--space-8);
}

.bac-side {
  text-align: center;
  min-width: 160px;
}

.bac-side-label {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.bac-points {
  font-size: var(--text-sm);
  font-weight: var(--font-normal);
  opacity: 0.8;
}

.bac-cards {
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  min-height: 100px;
}

.bac-vs {
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
  color: var(--color-text-disabled);
  align-self: center;
}

.bac-result {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: var(--text-3xl);
  font-weight: var(--font-semibold);
  text-align: center;
  padding: var(--space-3) var(--space-6);
  background: var(--color-background);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: 10;
  animation: resultPop var(--transition-normal) forwards;
}

@keyframes resultPop {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(0.8); }
  100% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

/* Bet Section */
.bac-bet-section {
  margin-top: var(--space-4);
}

.bac-payout-info {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.bac-bet-options {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.bac-bet-opt {
  flex: 1;
  max-width: 200px;
  height: 56px;
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-lg);
  background: var(--color-background);
  transition: all var(--transition-fast);
}

.bac-bet-opt.selected {
  transform: scale(1.02);
  box-shadow: var(--shadow-md);
}

.bac-bet-opt[data-option="player"].selected {
  background: var(--color-primary-container);
}

.bac-bet-opt[data-option="banker"].selected {
  background: var(--color-error-container);
}

.bac-bet-opt[data-option="tie"].selected {
  background: var(--color-warning-container);
}

.bac-bet-chips {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.bac-chip-btn.selected {
  background: var(--color-primary);
  color: var(--color-text-on-primary);
  border-color: var(--color-primary);
}

/* Baccarat Bottom Grid */
.bac-bottom-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.bac-roadmap-card {
  overflow: hidden;
}

.bac-roadmap {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  padding: var(--space-3) 0;
  max-height: 200px;
  overflow-y: auto;
}

.roadmap-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Chat */
.chat-messages {
  height: 180px;
  overflow-y: auto;
  padding: var(--space-2);
  background: var(--color-surface);
  border-radius: var(--radius-xs);
  margin: var(--space-3) 0;
}

.chat-msg {
  font-size: var(--text-sm);
  padding: var(--space-1) 0;
  border-bottom: 1px solid var(--color-border-light);
}

.chat-user {
  font-weight: var(--font-medium);
  color: var(--color-primary);
}

.chat-input-area {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.chat-quick-btns {
  display: flex;
  gap: var(--space-1);
  flex-wrap: wrap;
}

.chat-input-row {
  display: flex;
  gap: var(--space-2);
}

.chat-input-row .input-field {
  height: 36px;
  flex: 1;
}

/* Settlement */
.bac-settlement {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: var(--z-toast);
  animation: resultPop var(--transition-normal) forwards;
}

.settlement-content {
  text-align: center;
  padding: var(--space-7);
  background: var(--color-background);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.settlement-amount {
  font-size: var(--text-3xl);
  font-weight: var(--font-semibold);
  margin-top: var(--space-3);
}

/* Countdown Circle */
.countdown-circle {
  position: relative;
  width: 40px;
  height: 40px;
}

.countdown-circle svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.countdown-bg {
  fill: none;
  stroke: var(--color-border);
  stroke-width: 2;
}

.countdown-fg {
  fill: none;
  stroke: var(--color-primary);
  stroke-width: 2.5;
  stroke-linecap: round;
  transition: stroke-dasharray 1s linear;
}

.countdown-circle.urgent .countdown-fg {
  stroke: var(--color-error);
}

.countdown-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
}

.countdown-circle.urgent .countdown-text {
  color: var(--color-error);
  animation: blink 0.5s infinite alternate;
}

@keyframes blink {
  from { opacity: 1; }
  to { opacity: 0.4; }
}

/* ---- Playing Cards ---- */
.playing-card {
  width: 60px;
  height: 84px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  font-weight: var(--font-semibold);
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.card-red {
  color: var(--color-error);
}

.card-black {
  color: var(--color-text-primary);
}

.card-rank {
  font-size: var(--text-lg);
}

.card-suit {
  font-size: var(--text-xl);
  line-height: 1;
}

.card-back {
  background: var(--color-primary);
}

.card-back-pattern {
  width: 44px;
  height: 64px;
  background: repeating-linear-gradient(45deg, transparent, transparent 3px, rgba(255,255,255,0.15) 3px, rgba(255,255,255,0.15) 6px);
  border-radius: 4px;
}

.card-placeholder {
  width: 60px;
  height: 84px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-xs);
  color: var(--color-text-disabled);
  font-size: var(--text-2xl);
}

.card-flipping {
  animation: cardFlip 300ms ease;
}

@keyframes cardFlip {
  0% { transform: rotateY(0deg); }
  50% { transform: rotateY(90deg); }
  100% { transform: rotateY(0deg); }
}

/* ---- Hi-Lo ---- */
.hilo-game {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  padding: var(--space-8);
}

.hilo-cards-area {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}

.hilo-info {
  margin-bottom: var(--space-5);
  color: var(--color-text-secondary);
}

.hilo-chips {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.hilo-guess-area {
  margin-top: var(--space-4);
}

.hilo-guess-area p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.hilo-guess-btns {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
}

.hilo-guess-btn {
  min-width: 120px;
  height: 56px;
  font-size: var(--text-lg);
}

.hilo-collect-area {
  margin-top: var(--space-5);
}

.hilo-win-display {
  font-size: var(--text-lg);
  margin-bottom: var(--space-4);
  line-height: 1.8;
}

.hilo-win-display strong {
  color: var(--color-success);
  font-size: var(--text-2xl);
}

.hilo-collect-btns {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
}

.hilo-result {
  margin-top: var(--space-4);
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  animation: resultPop var(--transition-normal) forwards;
}

.hilo-result.win {
  color: var(--color-success);
  background: var(--color-success-container);
}

.hilo-result.lose {
  color: var(--color-error);
  background: var(--color-error-container);
}

/* ---- Poker ---- */
.poker-rooms {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-4);
}

.poker-room-card {
  padding: var(--space-5);
}

.poker-room-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-3);
}

.poker-room-meta {
  display: flex;
  gap: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.poker-room-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Poker Table */
.poker-room-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) 0;
}

.poker-pot {
  font-size: var(--text-lg);
  font-weight: var(--font-medium);
}

.poker-table-area {
  position: relative;
  display: flex;
  justify-content: center;
  padding: var(--space-6) 0;
}

.poker-table {
  position: relative;
  width: 100%;
  max-width: 700px;
  min-height: 320px;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-8);
}

.poker-community-cards {
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  margin-bottom: var(--space-4);
}

.poker-seats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
}

.poker-seat {
  text-align: center;
  padding: var(--space-2) var(--space-3);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  min-width: 90px;
  font-size: var(--text-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.poker-seat.active {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary-container);
}

.poker-seat.folded {
  opacity: 0.4;
}

.seat-name {
  font-weight: var(--font-medium);
  margin-bottom: 2px;
}

.seat-bet {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
}

.seat-action {
  font-size: 10px;
  color: var(--color-primary);
  font-weight: var(--font-medium);
}

.seat-cards {
  display: flex;
  gap: 2px;
  justify-content: center;
  margin: var(--space-1) 0;
}

.seat-cards .playing-card {
  width: 36px;
  height: 50px;
  font-size: 10px;
}

.seat-cards .playing-card .card-rank {
  font-size: var(--text-xs);
}

.seat-cards .playing-card .card-suit {
  font-size: var(--text-sm);
}

.seat-win {
  font-size: var(--text-xs);
}

.seat-win.win {
  color: var(--color-success);
  font-weight: var(--font-semibold);
}

.dealer-chip {
  position: absolute;
  top: -6px;
  right: -6px;
  width: 20px;
  height: 20px;
  background: var(--color-warning);
  color: var(--color-text-primary);
  border-radius: 50%;
  font-size: 10px;
  font-weight: var(--font-semibold);
  display: flex;
  align-items: center;
  justify-content: center;
}

.poker-actions {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--space-4);
}

.poker-turn-indicator {
  text-align: center;
  font-weight: var(--font-semibold);
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.poker-action-btns {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.raise-input {
  width: 80px;
  height: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  padding: 0 var(--space-2);
  margin-left: var(--space-1);
  background: rgba(255,255,255,0.2);
  color: inherit;
}

.poker-my-cards {
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  margin-top: var(--space-3);
}

/* ---- History ---- */
.history-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.stat-card {
  text-align: center;
  padding: var(--space-5);
}

.stat-value {
  display: block;
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-1);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* ---- Admin ---- */
.admin-page {
  display: flex;
  min-height: 100vh;
}

.admin-sidebar {
  width: var(--sidebar-width);
  background: var(--color-background);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  flex-shrink: 0;
}

.admin-sidebar-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.admin-nav {
  flex: 1;
  padding: var(--space-3) 0;
}

.admin-nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  border: none;
  background: none;
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-fast);
  min-height: 44px;
}

.admin-nav-item:hover {
  background: var(--color-surface);
  color: var(--color-text-primary);
}

.admin-nav-item.active {
  background: var(--color-primary-container);
  color: var(--color-primary);
}

.admin-sidebar-footer {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-border);
}

.admin-content {
  flex: 1;
  padding: var(--space-6) var(--space-7);
  overflow-y: auto;
  max-height: 100vh;
}

.admin-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.admin-stats-grid .card {
  padding: var(--space-5);
}

.admin-stats-grid h3 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-1);
}

.admin-stats-grid span {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* Settings Toggle */
.setting-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-border-light);
}

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background: var(--color-border);
  border-radius: 24px;
  transition: var(--transition-fast);
}

.slider::before {
  content: '';
  position: absolute;
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background: white;
  border-radius: 50%;
  transition: var(--transition-fast);
}

.switch input:checked + .slider {
  background: var(--color-primary);
}

.switch input:checked + .slider::before {
  transform: translateX(20px);
}

/* ---- Maintenance ---- */
#maintenance-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--color-surface);
  text-align: center;
}

.maintenance-content h1 {
  margin-top: var(--space-5);
  font-size: var(--text-3xl);
  color: var(--color-text-primary);
}

.maintenance-content p {
  margin-top: var(--space-3);
  color: var(--color-text-secondary);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .game-cards { grid-template-columns: repeat(2, 1fr); }
  .history-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .admin-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .leaderboard-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .mobile-only { display: flex; }
  .header-nav { display: none; }

  .lobby-hero h1 { font-size: var(--text-2xl); }

  .game-cards { grid-template-columns: 1fr; }
  .game-card { padding: var(--space-5); }

  .bac-table-inner { flex-direction: column; gap: var(--space-4); }
  .bac-vs { display: none; }
  .bac-bet-options { flex-direction: column; align-items: center; }
  .bac-bet-opt { max-width: 100%; width: 100%; }
  .bac-bottom-grid { grid-template-columns: 1fr; }

  .hilo-cards-area { flex-direction: row; gap: var(--space-3); }
  .hilo-guess-btns { flex-direction: row; }
  .hilo-collect-btns { flex-direction: column; align-items: center; }

  .poker-table { border-radius: var(--radius-xl); min-height: 250px; padding: var(--space-5); }
  .poker-action-btns { flex-direction: column; align-items: center; }

  .history-stats-grid { grid-template-columns: repeat(2, 1fr); }

  /* Admin */
  .admin-page { flex-direction: column; }
  .admin-sidebar {
    width: 100%;
    height: auto;
    position: relative;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }
  .admin-nav { display: flex; overflow-x: auto; padding: 0; }
  .admin-nav-item { white-space: nowrap; flex-shrink: 0; padding: var(--space-3); }
  .admin-sidebar-header { justify-content: center; }
  .admin-sidebar-footer { display: none; }
  .admin-content { padding: var(--space-4); max-height: none; }
  .admin-stats-grid { grid-template-columns: repeat(2, 1fr); }

  .footer-top { flex-direction: column; gap: var(--space-5); }
  .footer-links { gap: var(--space-5); }
}

@media (max-width: 430px) {
  .auth-card { padding: var(--space-5); }

  .bac-bet-chips { gap: var(--space-1); }
  .bac-chip-btn { padding: 0 var(--space-2); font-size: var(--text-xs); min-width: auto; }

  .hilo-game { padding: var(--space-5); }

  .playing-card { width: 48px; height: 68px; }
  .card-rank { font-size: var(--text-base); }
  .card-suit { font-size: var(--text-lg); }
  .card-placeholder { width: 48px; height: 68px; }

  .poker-seat { min-width: 70px; padding: var(--space-1) var(--space-2); }

  .footer-bottom { flex-direction: column; gap: var(--space-2); text-align: center; }
}

/* iPhone safe areas */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  .app-footer { padding-bottom: calc(var(--space-6) + env(safe-area-inset-bottom)); }
  .poker-actions { padding-bottom: calc(var(--space-4) + env(safe-area-inset-bottom)); }
  .bac-bet-section { padding-bottom: calc(var(--space-4) + env(safe-area-inset-bottom)); }
}