/**
 * Torre de equilibrio y físicas 3D (tipo Jenga)
 * Estilos canónicos de alta fidelidad para Fijate Tools
 * Soporte reactivo dual para tema oscuro y claro
 */

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

  /* Colores tema oscuro (por defecto) */
  --bg-main: #0b1120;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-solid: #0f172a;
  --bg-control: #1e293b;
  --border-color: rgba(51, 65, 85, 0.8);
  --border-hover: #475569;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-primary: #f59e0b;
  --accent-primary-hover: #d97706;
  --accent-blue: #38bdf8;
  --accent-blue-hover: #0284c7;
  --accent-emerald: #10b981;
  --accent-rose: #f43f5e;

  --glass-bg: rgba(15, 23, 42, 0.82);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --transition-fast: 0.18s ease;
}

[data-theme="light"] {
  --bg-main: #f8fafc;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-solid: #ffffff;
  --bg-control: #e2e8f0;
  --border-color: #cbd5e1;
  --border-hover: #94a3b8;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;

  --glass-bg: rgba(255, 255, 255, 0.88);
  --glass-border: rgba(0, 0, 0, 0.08);
  --glass-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
}

.mono {
  font-family: var(--font-mono);
}

/* Layout canónico */
.tool-layout {
  max-width: 1380px;
  width: 100%;
  margin: 1.5rem auto 3rem;
  padding: 0 1rem;
  flex: 1 0 auto;
}

.tool-with-sidebar {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  width: 100%;
}

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

/* Escenario 3D interactivo */
.stage-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(16px);
  position: relative;
  display: flex;
  flex-direction: column;
}

.canvas-viewport {
  position: relative;
  width: 100%;
  height: 640px;
  background: radial-gradient(circle at 50% 30%, rgba(30, 41, 59, 0.3) 0%, rgba(11, 17, 32, 0.8) 100%);
  overflow: hidden;
  touch-action: none;
  user-select: none;
}

[data-theme="light"] .canvas-viewport {
  background: radial-gradient(circle at 50% 30%, rgba(241, 245, 249, 0.8) 0%, rgba(226, 232, 240, 0.6) 100%);
}

#jenga-canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
}

#jenga-canvas:active {
  cursor: grabbing;
}

/* HUD flotante superpuesto en Canvas */
.hud-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.25rem;
  z-index: 10;
}

.hud-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
}

.telemetry-pills {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  pointer-events: auto;
}

.telemetry-pill {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
}

.telemetry-label {
  font-size: 0.72rem;
  color: var(--text-secondary);
  text-transform: none;
}

.telemetry-value {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Medidor de estabilidad y balanceo */
.stability-indicator {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(12px);
  min-width: 170px;
  pointer-events: auto;
}

.stability-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  margin-bottom: 0.35rem;
}

.stability-bar-track {
  width: 100%;
  height: 6px;
  background: rgba(148, 163, 184, 0.28);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.stability-bar-fill {
  height: 100%;
  width: 100%;
  background: var(--accent-emerald);
  border-radius: var(--radius-full);
  transition: width var(--transition-fast), background-color var(--transition-fast);
}

.stability-bar-fill.warning {
  background: var(--accent-primary);
}

.stability-bar-fill.danger {
  background: var(--accent-rose);
}

/* Acciones contextuales en la zona inferior del HUD */
.hud-bottom-bar {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Panel contextual de selección y extracción de bloque */
.hud-selection-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 0.5rem 0.85rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  pointer-events: auto;
  min-width: 250px;
}

.hud-selection-header {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.hud-status-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: #64748b;
  flex-shrink: 0;
  transition: background-color var(--transition-fast);
}

.hud-status-dot.active {
  background: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
}

.hud-status-dot.protected {
  background: var(--accent-rose);
  box-shadow: 0 0 8px var(--accent-rose);
}

.hud-selection-text {
  font-size: 0.78rem;
  color: var(--text-primary);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 240px;
}

.hud-selection-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-extract-main {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  background: linear-gradient(135deg, #10b981, #059669);
  color: #ffffff;
  border: none;
  padding: 0.55rem 0.95rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
  min-height: 40px;
}

.btn-extract-main:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(16, 185, 129, 0.5);
}

.btn-extract-main:active:not(:disabled) {
  transform: translateY(0);
}

.btn-extract-main:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
  background: #475569;
}

.hud-nudge-arrows {
  display: flex;
  gap: 0.35rem;
}

.btn-hud-arrow {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-control);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-hud-arrow:hover:not(:disabled) {
  background: var(--accent-blue);
  color: #ffffff;
  border-color: var(--accent-blue);
  transform: translateY(-1px);
}

.btn-hud-arrow:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.hud-placement-group {
  display: flex;
  pointer-events: auto;
}

.hud-actions-right {
  display: flex;
  gap: 0.65rem;
  pointer-events: auto;
}

/* Botón prominente de colocar en la cúspide */
.btn-place-top {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #ffffff;
  border: none;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
  min-height: 44px;
}

.btn-place-top:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.55);
}

.btn-place-top:active:not(:disabled) {
  transform: translateY(0);
}

.btn-place-top:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
  background: #475569;
}

/* Botones genéricos de icono HUD */
.btn-hud-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  backdrop-filter: blur(12px);
}

.btn-hud-icon:hover {
  background: var(--bg-control);
  color: var(--accent-blue);
  border-color: var(--accent-blue);
  transform: translateY(-1px);
}

/* Panel de control de físicas y ajustes inferiores */
.controls-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.section-title {
  font-size: 1.15rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Cuadrícula de configuración (Lección 210: display grid sin scrollbars nativos) */
.settings-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  width: 100%;
}

@media (max-width: 1024px) {
  .settings-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 580px) {
  .settings-grid {
    grid-template-columns: 1fr;
  }
}

.setting-item {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.setting-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

/* Selectores canónicos (Lección 208: fondo sólido, texto visible, flecha SVG) */
.form-select {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: 42px;
  min-height: 40px;
  padding: 0 40px 0 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-card-solid);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  appearance: none;
  cursor: pointer;
  color-scheme: dark;
  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='%2394a3b8' stroke-width='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: right 14px center;
  background-size: 16px;
  transition: border-color var(--transition-fast);
}

[data-theme="light"] .form-select {
  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='%23475569' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
}

.form-select:hover {
  border-color: var(--border-hover);
}

.form-select:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
}

.form-select option,
.form-select optgroup {
  background-color: var(--bg-card-solid);
  color: var(--text-primary);
  padding: 8px 12px;
}

/* Barra de asistencia de extracción manual */
.nudge-bar {
  background: var(--bg-control);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.nudge-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.nudge-buttons {
  display: flex;
  gap: 0.5rem;
}

.btn-nudge {
  min-height: 40px;
  padding: 0 1rem;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-fast);
}

.btn-nudge:hover {
  background: var(--accent-blue);
  color: #ffffff;
  border-color: var(--accent-blue);
}

/* Bloques de guía y reglas */
.guide-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--glass-shadow);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

@media (max-width: 768px) {
  .guide-steps {
    grid-template-columns: 1fr;
  }
}

.step-box {
  background: var(--bg-card-solid);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.step-num {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: var(--accent-blue);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
}

.step-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.step-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

/* Modales canónicos accesibles (sin window.alert) */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

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

.modal-box {
  background: var(--bg-card-solid);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 540px;
  width: 100%;
  padding: 1.75rem;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transform: translateY(12px) scale(0.98);
  transition: transform var(--transition-fast);
}

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

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 1.3rem;
  color: var(--text-primary);
}

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

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

.modal-body {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.55;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.modal-stats {
  background: var(--bg-control);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.modal-stat-item {
  display: flex;
  flex-direction: column;
}

.modal-stat-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.modal-stat-value {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.btn-modal-cancel {
  min-height: 42px;
  padding: 0 1.25rem;
  border-radius: var(--radius-md);
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-weight: 600;
  cursor: pointer;
}

.btn-modal-confirm {
  min-height: 42px;
  padding: 0 1.5rem;
  border-radius: var(--radius-md);
  background: var(--accent-primary);
  border: none;
  color: #ffffff;
  font-family: var(--font-heading);
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.4);
}

.btn-modal-confirm:hover {
  background: var(--accent-primary-hover);
}

/* Responsividad general */
@media (max-width: 1200px) {
  .tool-with-sidebar {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  .canvas-viewport {
    height: 560px;
  }
  .hud-overlay {
    padding: 0.75rem;
  }
  .telemetry-pill {
    padding: 0.4rem 0.65rem;
  }
  .telemetry-value {
    font-size: 1rem;
  }
  .stability-indicator {
    min-width: 140px;
  }
  .hud-bottom-bar {
    gap: 0.65rem;
  }
  .hud-selection-panel {
    width: 100%;
    min-width: 0;
  }
  .hud-placement-group {
    width: 100%;
  }
  .btn-place-top {
    width: 100%;
    justify-content: center;
  }
  .hud-actions-right {
    width: 100%;
    justify-content: space-between;
  }
  .btn-hud-icon {
    flex: 1;
    min-width: 0;
  }
}