/* Texas Hold'em Poker Table Styles */

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  min-height: 100vh;
  color: #333;
}

.top-nav {
  background: rgba(0, 0, 0, 0.3);
  padding: 0.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.top-nav .nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: white;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
}

.top-nav .nav-brand:hover {
  opacity: 0.9;
}

.top-nav .nav-brand img {
  height: 28px;
  width: auto;
}

.top-nav .nav-links {
  display: flex;
  gap: 1rem;
}

.top-nav a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  transition: background 0.2s;
}

.top-nav a:hover {
  background: rgba(255, 255, 255, 0.2);
}

.app-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
}

.header {
  text-align: center;
  margin-bottom: 2rem;
}

.header h1 {
  color: white;
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.header p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.1rem;
}

/* Poker Table */
.poker-table-container {
  background: linear-gradient(145deg, rgba(30, 30, 50, 0.9) 0%, rgba(20, 20, 35, 0.95) 100%);
  border-radius: 24px;
  padding: 4rem 6rem;
  backdrop-filter: blur(15px);
  box-shadow:
    0 25px 50px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  overflow: visible;
  margin: 2rem auto;
  position: relative;
}

.poker-table {
  /* Multi-layer wood rail effect */
  background:
    /* Felt texture overlay */
    radial-gradient(ellipse at 30% 30%, rgba(255, 255, 255, 0.03) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 70%, rgba(0, 0, 0, 0.1) 0%, transparent 50%),
    /* Base felt gradient */
    linear-gradient(180deg, #1a7a1a 0%, #0d5c0d 40%, #085808 100%);
  border: 20px solid transparent;
  border-radius: 50%;
  position: relative;
  width: 100%;
  max-width: 800px;
  height: 450px;
  margin: 0 auto;
  overflow: visible;
  /* Wood rail with grain effect */
  background-clip: padding-box;
  box-shadow:
    /* Inner felt shadow - only at bottom for depth */
    inset 0 -40px 60px rgba(0, 0, 0, 0.35),
    /* Table drop shadow */
    0 20px 60px rgba(0, 0, 0, 0.6),
    0 10px 20px rgba(0, 0, 0, 0.4);
}

/* Wood grain rail - using pseudo element for texture */
.poker-table-container::before {
  content: '';
  position: absolute;
  top: calc(50% - 2.5rem);
  left: 50%;
  transform: translate(-50%, -50%);
  width: calc(100% - 8rem);
  max-width: 840px;
  height: 490px;
  border-radius: 50%;
  /* Wood grain pattern */
  background:
    /* Grain lines */
    repeating-linear-gradient(
      92deg,
      transparent,
      transparent 3px,
      rgba(0, 0, 0, 0.08) 3px,
      rgba(0, 0, 0, 0.08) 4px,
      transparent 4px,
      transparent 12px
    ),
    repeating-linear-gradient(
      88deg,
      transparent,
      transparent 8px,
      rgba(255, 255, 255, 0.04) 8px,
      rgba(255, 255, 255, 0.04) 9px,
      transparent 9px,
      transparent 20px
    ),
    /* Wood knots suggestion */
    radial-gradient(ellipse 8px 12px at 15% 30%, rgba(60, 30, 15, 0.2) 0%, transparent 100%),
    radial-gradient(ellipse 6px 10px at 85% 70%, rgba(60, 30, 15, 0.15) 0%, transparent 100%),
    radial-gradient(ellipse 5px 8px at 45% 80%, rgba(60, 30, 15, 0.15) 0%, transparent 100%),
    /* Base wood color - much lighter at top */
    linear-gradient(
      180deg,
      #b8917a 0%,
      #a8816a 10%,
      #8b6350 30%,
      #7a5240 60%,
      #6b4535 100%
    );
  box-shadow:
    inset 0 40px 50px rgba(255, 255, 255, 0.2),
    inset 0 -15px 25px rgba(0, 0, 0, 0.2),
    0 0 0 3px #5a3d2a,
    0 0 0 5px #4a2f22;
  z-index: 0;
  pointer-events: none;
}

/* Betting line ring */
.poker-table::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 75%;
  height: 70%;
  border: 2px solid rgba(255, 215, 0, 0.15);
  border-radius: 50%;
  pointer-events: none;
  box-shadow:
    0 0 10px rgba(255, 215, 0, 0.1),
    inset 0 0 10px rgba(255, 215, 0, 0.05);
}

/* Center spotlight effect */
.poker-table::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 50%;
  height: 45%;
  background: radial-gradient(ellipse, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

/* Community Cards Area */
.community-cards-area {
  position: absolute;
  top: 45%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  z-index: 25;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.pot-display {
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.85) 0%, rgba(20, 20, 20, 0.9) 100%);
  color: #ffd700;
  padding: 0.6rem 1.5rem;
  border-radius: 20px;
  font-size: 1.1rem;
  font-weight: bold;
  order: 1;
  box-shadow:
    0 4px 15px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.1),
    0 0 20px rgba(255, 215, 0, 0.15);
  border: 1px solid rgba(255, 215, 0, 0.2);
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

.community-cards {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  order: 2;
  padding: 0.75rem 1rem;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 12px;
  box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.3);
}

.round-indicator {
  background: linear-gradient(180deg, rgba(40, 40, 60, 0.9) 0%, rgba(30, 30, 45, 0.95) 100%);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
  order: 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Player Seats */
.player-seats {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.player-seat {
  position: absolute;
  width: 145px;
  background: linear-gradient(180deg, rgba(35, 35, 50, 0.95) 0%, rgba(20, 20, 30, 0.98) 100%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: 0.75rem;
  color: white;
  transition: all 0.3s ease;
  pointer-events: auto;
  z-index: 20;
  font-size: 0.85rem;
  box-shadow:
    0 8px 25px rgba(0, 0, 0, 0.5),
    0 4px 10px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
}

.player-seat::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, transparent 100%);
  border-radius: 12px 12px 0 0;
  pointer-events: none;
}

.player-seat.active-turn {
  border-color: #ffd700;
  box-shadow:
    0 0 30px rgba(255, 215, 0, 0.5),
    0 0 60px rgba(255, 215, 0, 0.2),
    0 8px 25px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(255, 215, 0, 0.3);
  transform: scale(1.02);
}

.player-seat.folded {
  opacity: 0.4;
  filter: grayscale(80%);
  transform: scale(0.98);
}

/* Heatmap coloring for player seats */
.player-seat.heatmap-strong {
  background: linear-gradient(180deg, rgba(16, 185, 129, 0.9) 0%, rgba(5, 150, 105, 0.95) 100%);
  border-color: #10b981;
  box-shadow:
    0 0 20px rgba(16, 185, 129, 0.4),
    0 8px 25px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.player-seat.heatmap-medium {
  background: linear-gradient(180deg, rgba(245, 158, 11, 0.9) 0%, rgba(217, 119, 6, 0.95) 100%);
  border-color: #f59e0b;
  box-shadow:
    0 0 20px rgba(245, 158, 11, 0.4),
    0 8px 25px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.player-seat.heatmap-weak {
  background: linear-gradient(180deg, rgba(239, 68, 68, 0.9) 0%, rgba(220, 38, 38, 0.95) 100%);
  border-color: #ef4444;
  box-shadow:
    0 0 20px rgba(239, 68, 68, 0.4),
    0 8px 25px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.player-seat .heatmap-strength {
  position: absolute;
  bottom: -22px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.8);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.7rem;
  white-space: nowrap;
}

/* Position players around the oval table - Top center reserved for notices/dealer */
/* Seat 0: Bottom center (User) */
.player-seat.seat-0 {
  bottom: -90px;
  left: 50%;
  transform: translateX(-50%);
}

/* Seat 1: Left side (lower) */
.player-seat.seat-1 {
  bottom: -80px;
  left: -70px;
}

/* Seat 2: Left side (upper) */
.player-seat.seat-2 {
  top: -80px;
  left: -70px;
}

/* Seat 3: Right side (upper) */
.player-seat.seat-3 {
  top: -80px;
  right: -70px;
}

/* Seat 4: Right side (lower) */
.player-seat.seat-4 {
  bottom: -80px;
  right: -70px;
}

/* Blind markers */
.blind-marker {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border-radius: 10px;
  font-size: 0.65rem;
  font-weight: bold;
  margin-left: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.blind-marker.sb {
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  color: white;
  box-shadow: 0 2px 6px rgba(59, 130, 246, 0.4);
}

.blind-marker.bb {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  color: #1a1a1a;
  box-shadow: 0 2px 6px rgba(245, 158, 11, 0.4);
}

.player-name {
  font-weight: 600;
  margin-bottom: 0.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.dealer-button {
  background: linear-gradient(145deg, #ffffff 0%, #e8e8e8 100%);
  color: #1a1a1a;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 0.75rem;
  box-shadow:
    0 2px 6px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.9),
    inset 0 -1px 0 rgba(0, 0, 0, 0.1);
  border: 2px solid #c0c0c0;
  text-shadow: none;
}

.player-chips {
  color: #ffd700;
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.4);
}

.player-cards {
  display: flex;
  gap: 0.3rem;
  margin-bottom: 0.5rem;
  min-height: 60px;
  justify-content: center;
}

.player-bet {
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.25) 0%, rgba(255, 180, 0, 0.2) 100%);
  color: #ffd700;
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  text-align: center;
  border: 1px solid rgba(255, 215, 0, 0.3);
  box-shadow: 0 2px 8px rgba(255, 215, 0, 0.15);
}

/* Cards */
.card {
  width: 52px;
  height: 72px;
  background: linear-gradient(145deg, #ffffff 0%, #f8f8f8 50%, #eeeeee 100%);
  border: 1px solid rgba(0, 0, 0, 0.15);
  border-radius: 6px;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow:
    0 4px 8px rgba(0, 0, 0, 0.3),
    0 2px 4px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-8px) rotateX(5deg);
  box-shadow:
    0 12px 20px rgba(0, 0, 0, 0.4),
    0 6px 8px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.card-back {
  background:
    /* Diamond pattern */
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 6px,
      rgba(255, 255, 255, 0.06) 6px,
      rgba(255, 255, 255, 0.06) 12px
    ),
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 6px,
      rgba(255, 255, 255, 0.06) 6px,
      rgba(255, 255, 255, 0.06) 12px
    ),
    /* Base gradient - neutral dark blue/slate */
    linear-gradient(145deg, #3a4a5c 0%, #2a3a4c 50%, #1a2a3c 100%);
  border: 2px solid #1a2530;
  box-shadow:
    0 4px 8px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.15),
    inset 0 -1px 0 rgba(0, 0, 0, 0.3);
}

.card-pattern {
  width: 40px;
  height: 60px;
  background-image:
    /* Center emblem */
    radial-gradient(ellipse 20px 28px at center, rgba(255, 255, 255, 0.08) 0%, transparent 70%),
    /* Corner dots */
    radial-gradient(circle 3px at 8px 8px, rgba(255, 255, 255, 0.15) 0%, transparent 100%),
    radial-gradient(circle 3px at 32px 8px, rgba(255, 255, 255, 0.15) 0%, transparent 100%),
    radial-gradient(circle 3px at 8px 52px, rgba(255, 255, 255, 0.15) 0%, transparent 100%),
    radial-gradient(circle 3px at 32px 52px, rgba(255, 255, 255, 0.15) 0%, transparent 100%);
}

.card-placeholder {
  background: rgba(255, 255, 255, 0.08);
  border: 2px dashed rgba(255, 255, 255, 0.25);
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.2);
}

.card-face {
  padding: 0.25rem;
}

.card-rank {
  font-size: 1.3rem;
  font-weight: bold;
  line-height: 1;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);
}

.card-suit {
  font-size: 1.6rem;
  line-height: 1;
  margin-top: 0.2rem;
  filter: drop-shadow(0 1px 0 rgba(0, 0, 0, 0.1));
}

.card-red {
  color: #c41e3a;
}

.card-black {
  color: #1a1a1a;
}

/* Controls */
.controls {
  margin-top: 7rem;
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  align-items: center;
  position: relative;
  z-index: 5;
}

.speed-control {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.1);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  color: #fff;
}

.speed-control label {
  font-size: 0.9rem;
  font-weight: 600;
}

.speed-control input[type="range"] {
  width: 100px;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 3px;
  cursor: pointer;
}

.speed-control input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  background: #f59e0b;
  border-radius: 50%;
  cursor: pointer;
}

.speed-control input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  background: #f59e0b;
  border-radius: 50%;
  cursor: pointer;
  border: none;
}

#speed-label {
  min-width: 40px;
  text-align: right;
  font-weight: 600;
  color: #f59e0b;
}

.btn {
  padding: 0.8rem 1.75rem;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow:
    0 4px 15px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.15) 0%, transparent 100%);
  pointer-events: none;
}

.btn:hover:not(:disabled) {
  transform: translateY(-3px);
  box-shadow:
    0 8px 25px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn:active:not(:disabled) {
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.btn-success {
  background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
  color: white;
  box-shadow:
    0 4px 15px rgba(34, 197, 94, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-success:hover:not(:disabled) {
  box-shadow:
    0 8px 25px rgba(34, 197, 94, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-danger {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  color: white;
  box-shadow:
    0 4px 15px rgba(239, 68, 68, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-danger:hover:not(:disabled) {
  box-shadow:
    0 8px 25px rgba(239, 68, 68, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-warning {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  color: white;
}

.btn-secondary {
  background: linear-gradient(135deg, #64748b 0%, #475569 100%);
  color: white;
}

.btn-small {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
}

/* Action Buttons with ODE Values */
.action-buttons {
  margin-top: 2rem;
  padding: 1.5rem;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 12px;
  position: relative;
  z-index: 5;
}

.action-buttons h3 {
  color: white;
  margin-bottom: 1rem;
  text-align: center;
}

.action-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
}

.action-button {
  position: relative;
  padding: 1rem;
  border: 2px solid transparent;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  color: white;
  cursor: pointer;
  transition: all 0.3s ease;
}

.action-button:hover:not(:disabled) {
  transform: scale(1.05);
  border-color: white;
}

.action-button.recommended {
  border-color: #ffd700;
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.4);
}

.action-label {
  font-weight: bold;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.action-ode-value {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* Heatmap Overlay */
.heatmap-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.heatmap-content {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  max-width: 600px;
  width: 90%;
}

.heatmap-content h3 {
  margin-bottom: 1rem;
}

.heatmap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
}

.heatmap-item {
  padding: 1rem;
  border-radius: 8px;
  text-align: center;
}

.heatmap-item.positive {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: white;
}

.heatmap-item.neutral {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  color: white;
}

.heatmap-item.negative {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  color: white;
}

/* Status Messages */
.status-message {
  text-align: center;
  padding: 0.75rem 1.5rem;
  margin: 0.5rem 0 1.5rem 0;
  border-radius: 8px;
  font-weight: 600;
  min-height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  visibility: hidden;
  position: relative;
  z-index: 10;
}

.status-message.visible {
  visibility: visible;
}

.status-message.info {
  background: rgba(59, 130, 246, 0.2);
  color: #3b82f6;
}

.status-message.success {
  background: rgba(16, 185, 129, 0.2);
  color: #10b981;
}

.status-message.error {
  background: rgba(239, 68, 68, 0.2);
  color: #ef4444;
}

/* Game Info */
.game-info {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.info-card {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 1.5rem;
  backdrop-filter: blur(10px);
}

.info-card h3 {
  color: white;
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.info-card-content {
  color: rgba(255, 255, 255, 0.9);
}

.event-list {
  max-height: 300px;
  overflow-y: auto;
  font-size: 0.9rem;
  color: white;
}

.event-item {
  padding: 0.5rem;
  margin-bottom: 0.5rem;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 4px;
  border-left: 3px solid #667eea;
  color: white;
}

.event-item strong {
  color: #ffd700;
}

/* Loading State */
.loading {
  text-align: center;
  padding: 2rem;
  color: white;
  font-size: 1.2rem;
}

.spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .poker-table {
    min-height: 400px;
    padding: 2rem 1rem;
  }

  .player-seat {
    width: 140px;
    padding: 0.75rem;
    font-size: 0.9rem;
  }

  .card {
    width: 40px;
    height: 56px;
  }

  .card-rank {
    font-size: 1rem;
  }

  .card-suit {
    font-size: 1.2rem;
  }

  .controls {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}

/* ============================================================================
   go-pflow Concepts Section
   ============================================================================ */

.concepts-section {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.concepts-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.concepts-header h2 {
  color: #fff;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.concepts-header p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
}

.concept-panels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

/* Dark theme overrides for explainer components */
.concepts-section explainer-panel {
  --explainer-bg: rgba(76, 175, 80, 0.1);
  --explainer-accent: #4caf50;
  --explainer-title: #4caf50;
  --explainer-text: rgba(255, 255, 255, 0.8);
}

.concepts-section pflow-concepts {
  --explainer-bg: rgba(255, 255, 255, 0.03);
  --explainer-text: rgba(255, 255, 255, 0.8);
}

.concepts-section explainer-panel code {
  background: rgba(0, 0, 0, 0.3);
  color: #81c784;
}

.concepts-section explainer-panel strong {
  color: #fff;
}

.concepts-section explainer-panel em {
  color: #ffd54f;
}

@media (max-width: 768px) {
  .concepts-section {
    margin: 1rem;
    padding: 1rem;
  }

  .concept-panels {
    grid-template-columns: 1fr;
  }
}