/* ==========================================================================
   Solitario de canicas 3D (Senku) - Hoja de estilos canónica
   ========================================================================== */

:root {
  --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Paleta Tema Oscuro (Predeterminado) */
  --bg-app: #070c16;
  --bg-card: #0d1527;
  --bg-card-subtle: #131e36;
  --bg-input: #0a1120;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: #38bdf8;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-cyan: #38bdf8;
  --accent-amber: #f59e0b;
  --accent-emerald: #10b981;
  --accent-rose: #f43f5e;
  --accent-purple: #a855f7;

  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 2px 8px rgba(0, 0, 0, 0.3);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
}

/* Paleta Tema Claro */
[data-theme="light"] {
  --bg-app: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-subtle: #f8fafc;
  --bg-input: #ffffff;
  --border-color: #cbd5e1;
  --border-focus: #0284c7;

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;

  --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.06), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
}

/* Reset y estructura global */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-base);
  background-color: var(--bg-app);
  color: var(--text-main);
  line-height: 1.5;
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-main);
}

.mono-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* Contenedor principal de layout canónico */
.tool-layout {
  max-width: 1200px;
  margin: 1.5rem auto 3rem;
  padding: 0 1rem;
  width: 100%;
  flex: 1 0 auto;
}

.tool-with-sidebar {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.tool-main-content {
  flex: 1 1 0%;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Tarjeta principal del juego 3D */
.game-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Barra superior HUD (Telemetría de juego) */
.game-hud-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background-color: var(--bg-card-subtle);
  border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hud-left, .hud-center, .hud-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 600;
  background-color: rgba(56, 189, 248, 0.12);
  color: var(--accent-cyan);
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.hud-metric-box {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
}

.hud-metric-label {
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.hud-metric-val {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text-main);
  font-size: 1rem;
}

/* Contenedor del Canvas Three.js */
.canvas-wrapper {
  position: relative;
  width: 100%;
  height: 560px;
  background: radial-gradient(circle at center, #111a2e 0%, #080d1a 100%);
  overflow: hidden;
  touch-action: none; /* Control táctil optimizado para Three.js */
}

[data-theme="light"] .canvas-wrapper {
  background: radial-gradient(circle at center, #e2e8f0 0%, #cbd5e1 100%);
}

#canvas-3d-container {
  width: 100%;
  height: 100%;
  outline: none;
}

/* Superposiciones flotantes en el Canvas */
.canvas-overlay-hints {
  position: absolute;
  top: 1rem;
  left: 1rem;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 10;
}

.overlay-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background-color: rgba(7, 12, 22, 0.85);
  backdrop-filter: blur(8px);
  padding: 0.35rem 0.75rem;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.75rem;
  color: var(--text-muted);
}

[data-theme="light"] .overlay-pill {
  background-color: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(0, 0, 0, 0.1);
  color: var(--text-main);
}

/* Controles de cámara rápidos (flotantes en esquina derecha) */
.camera-quick-controls {
  position: absolute;
  top: 1rem;
  right: 1rem;
  display: flex;
  gap: 0.35rem;
  background-color: rgba(7, 12, 22, 0.85);
  backdrop-filter: blur(8px);
  padding: 0.35rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.12);
  z-index: 10;
}

[data-theme="light"] .camera-quick-controls {
  background-color: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.btn-cam {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 0.6rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-cam:hover, .btn-cam.active {
  background-color: var(--accent-cyan);
  color: #070c16;
}

/* Barra inferior de acciones del juego */
.game-bottom-bar {
  padding: 1.25rem;
  background-color: var(--bg-card-subtle);
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.action-buttons-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Botones universales accesibles (mínimo 40px) */
.btn-action {
  min-height: 42px;
  padding: 0.5rem 1.15rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.btn-primary {
  background-color: var(--accent-cyan);
  color: #070c16;
}

.btn-primary:hover {
  background-color: #7dd3fc;
  box-shadow: 0 4px 12px rgba(56, 189, 248, 0.3);
}

.btn-secondary {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.btn-secondary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-amber {
  background-color: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: var(--accent-amber);
}

.btn-amber:hover {
  background-color: rgba(245, 158, 11, 0.22);
}

/* Panel de personalización en cuadrícula (sin scrollbars horizontales) */
.customization-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.control-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.control-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* Estilizado canónico estricto de desplegables (Lección 208) */
.form-select {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  min-height: 42px;
  height: 42px;
  padding: 0 40px 0 1rem;
  font-family: var(--font-base);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background-color: #0d1527;
  color: var(--text-main);
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2338bdf8' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: calc(100% - 14px) center;
  cursor: pointer;
  transition: border-color 0.2s ease;
  color-scheme: dark;
}

.form-select:focus {
  outline: none;
  border-color: var(--border-focus);
}

.form-select option {
  background-color: #0d1527;
  color: #f8fafc;
  padding: 10px;
}

.form-select optgroup {
  background-color: #070c16;
  color: var(--accent-cyan);
  font-weight: 700;
}

[data-theme="light"] .form-select {
  background-color: #ffffff;
  color: #0f172a;
  border-color: #cbd5e1;
  color-scheme: light;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%230284c7' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
}

[data-theme="light"] .form-select option {
  background-color: #ffffff;
  color: #0f172a;
}

[data-theme="light"] .form-select optgroup {
  background-color: #f1f5f9;
  color: #0284c7;
}

/* Tarjeta de guía didáctica y reglas */
.info-section {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
}

.info-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.info-card-item {
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  padding: 1rem;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.info-card-item h4 {
  font-size: 0.9375rem;
  color: var(--accent-cyan);
}

.info-card-item p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.45;
}

/* Modales canónicos fijate */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(3, 7, 18, 0.75);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 100%;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  overflow: hidden;
  transform: translateY(12px) scale(0.97);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active .modal-dialog {
  transform: translateY(0) scale(1);
}

.modal-header {
  padding: 1.25rem 1.5rem;
  background-color: var(--bg-card-subtle);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.125rem;
  font-weight: 700;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
}

.modal-close-btn:hover {
  color: var(--text-main);
}

.modal-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: 0.9375rem;
  color: var(--text-main);
  line-height: 1.5;
}

.modal-footer {
  padding: 1rem 1.5rem;
  background-color: var(--bg-card-subtle);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* Insignias de evaluación de fin de juego */
.eval-badge {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 700;
  text-align: center;
}

.tier-master {
  background-color: rgba(16, 185, 129, 0.2);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.tier-expert {
  background-color: rgba(56, 189, 248, 0.2);
  color: var(--accent-cyan);
  border: 1px solid rgba(56, 189, 248, 0.4);
}

.tier-great {
  background-color: rgba(168, 85, 247, 0.2);
  color: var(--accent-purple);
  border: 1px solid rgba(168, 85, 247, 0.4);
}

.tier-notable {
  background-color: rgba(245, 158, 11, 0.2);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.4);
}

.tier-beginner, .tier-intermediate {
  background-color: rgba(148, 163, 184, 0.2);
  color: var(--text-muted);
  border: 1px solid rgba(148, 163, 184, 0.4);
}

.game-over-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.go-stat-card {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  text-align: center;
}

.go-stat-card span {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.go-stat-card strong {
  display: block;
  font-size: 1.25rem;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  margin-top: 0.2rem;
}

/* Adaptación responsiva (Mobile) */
@media (max-width: 900px) {
  .tool-with-sidebar {
    flex-direction: column;
  }
  
  .canvas-wrapper {
    height: 440px;
  }

  .customization-grid {
    grid-template-columns: 1fr;
  }

  .info-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .canvas-wrapper {
    height: 380px;
  }

  .game-hud-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .hud-left, .hud-center, .hud-right {
    justify-content: space-between;
  }

  .action-buttons-row {
    flex-direction: column;
  }

  .btn-action {
    width: 100%;
  }

  .camera-quick-controls {
    bottom: 1rem;
    top: auto;
    right: 50%;
    transform: translateX(50%);
  }
}