/* ==========================================================================
   CONFIGURADOR 3D INMOBILIARIO - ESTILOS PRINCIPALES
   ========================================================================== */

/* Variables CSS */
:root {
  /* Colores Principales */
  --primary-color: #3498db;
  --primary-dark: #2980b9;
  --secondary-color: #2c3e50;
  --accent-color: #e74c3c;
  --success-color: #27ae60;
  --warning-color: #f39c12;
  
  /* Colores de Fondo */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-dark: #2c3e50;
  --bg-overlay: rgba(0, 0, 0, 0.7);
  
  /* Colores de Texto */
  --text-primary: #2c3e50;
  --text-secondary: #7f8c8d;
  --text-light: #bdc3c7;
  --text-white: #ffffff;
  
  /* Espaciado */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  
  /* Tipografía */
  --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-xxl: 1.5rem;
  
  /* Bordes y Sombras */
  --border-radius: 8px;
  --border-radius-sm: 4px;
  --border-radius-lg: 12px;
  --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  --box-shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
  
  /* Transiciones */
  --transition: all 0.3s ease;
  --transition-fast: all 0.15s ease;
  
  /* Dimensiones */
  --header-height: 70px;
  --sidebar-width: 350px;
  --panel-width: 300px;
}

/* Reset y Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-md);
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-secondary);
  overflow-x: hidden;
}

/* ==========================================================================
   COMPONENTES BÁSICOS
   ========================================================================== */

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 12px 20px;
  border: none;
  border-radius: var(--border-radius);
  font-family: inherit;
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-lg);
}

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

.btn-primary {
  background: var(--primary-color);
  color: var(--text-white);
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-secondary {
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
  background: var(--primary-color);
  color: var(--text-white);
}

.btn-accent {
  background: var(--accent-color);
  color: var(--text-white);
}

.btn-success {
  background: var(--success-color);
  color: var(--text-white);
}

.btn-full {
  width: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

/* ==========================================================================
   LOADER
   ========================================================================== */

.loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 1;
  transition: opacity 0.5s ease;
}

.loader.hidden {
  opacity: 0;
  pointer-events: none;
}

.loader-content {
  text-align: center;
  color: var(--text-white);
}

.loader-logo {
  font-size: 4rem;
  margin-bottom: var(--spacing-lg);
  animation: float 2s ease-in-out infinite;
}

.loader-text {
  font-size: var(--font-size-xl);
  font-weight: 300;
  margin-bottom: var(--spacing-xl);
}

.loader-progress {
  width: 300px;
  height: 4px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: var(--spacing-md);
}

.loader-bar {
  height: 100%;
  background: var(--text-white);
  width: 0%;
  transition: width 0.3s ease;
}

.loader-percentage {
  font-size: var(--font-size-sm);
  opacity: 0.8;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ==========================================================================
   HEADER
   ========================================================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--bg-primary);
  border-bottom: 1px solid #e0e0e0;
  box-shadow: var(--box-shadow);
  z-index: 1000;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--spacing-lg);
  max-width: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo h1 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
}

.beta {
  background: var(--accent-color);
  color: var(--text-white);
  font-size: var(--font-size-xs);
  padding: 2px 6px;
  border-radius: var(--border-radius-sm);
  font-weight: 500;
}

.nav {
  display: flex;
  gap: var(--spacing-sm);
}

.nav-btn {
  padding: 8px 16px;
  background: transparent;
  border: 2px solid transparent;
  border-radius: var(--border-radius);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: var(--transition);
}

.nav-btn:hover,
.nav-btn.active {
  background: var(--primary-color);
  color: var(--text-white);
  border-color: var(--primary-color);
}

.header-actions {
  display: flex;
  gap: var(--spacing-sm);
}

/* ==========================================================================
   LAYOUT PRINCIPAL
   ========================================================================== */

.main-content {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr var(--panel-width);
  height: calc(100vh - var(--header-height));
  margin-top: var(--header-height);
}

/* ==========================================================================
   PANEL DE CONFIGURACIÓN
   ========================================================================== */

.config-panel {
  background: var(--bg-primary);
  border-right: 1px solid #e0e0e0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.property-info {
  padding: var(--spacing-lg);
  border-bottom: 1px solid #e0e0e0;
}

.property-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.property-details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.detail-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.detail-value {
  font-weight: 500;
  color: var(--text-primary);
}

/* Selector de Habitaciones */
.room-selector {
  padding: var(--spacing-lg);
  border-bottom: 1px solid #e0e0e0;
}

.room-selector h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.room-tabs {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.room-tab {
  padding: 12px var(--spacing-md);
  background: var(--bg-secondary);
  border: 2px solid transparent;
  border-radius: var(--border-radius);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: var(--transition);
  text-align: left;
}

.room-tab:hover,
.room-tab.active {
  background: var(--primary-color);
  color: var(--text-white);
  border-color: var(--primary-dark);
}

/* Catálogo de Muebles */
.furniture-catalog {
  flex: 1;
  padding: var(--spacing-lg);
}

.furniture-catalog h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.catalog-filters {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.catalog-filters input,
.catalog-filters select {
  padding: 10px 12px;
  border: 2px solid #e0e0e0;
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  transition: var(--transition);
}

.catalog-filters input:focus,
.catalog-filters select:focus {
  outline: none;
  border-color: var(--primary-color);
}

.furniture-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.furniture-item {
  background: var(--bg-secondary);
  border: 2px solid transparent;
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.furniture-item:hover {
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--box-shadow);
}

.furniture-item.selected {
  border-color: var(--accent-color);
  background: #ffeaea;
}

.furniture-item.dragging {
  opacity: 0.7;
  transform: rotate(5deg);
}

.furniture-icon {
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  border-radius: 50%;
  margin: 0 auto var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-white);
  font-size: var(--font-size-lg);
}

.furniture-name {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.furniture-price {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

/* ==========================================================================
   VISOR 3D
   ========================================================================== */

.viewer-container {
  position: relative;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  overflow: hidden;
}

.viewer-3d {
  width: 100%;
  height: 100%;
  position: relative;
}

.viewer-3d canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.viewer-controls {
  position: absolute;
  top: var(--spacing-lg);
  left: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.view-modes {
  display: flex;
  gap: var(--spacing-sm);
  background: var(--bg-overlay);
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
  backdrop-filter: blur(10px);
}

.view-btn {
  padding: 8px 12px;
  background: transparent;
  border: 2px solid transparent;
  border-radius: var(--border-radius-sm);
  color: var(--text-white);
  font-size: var(--font-size-xs);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.view-btn:hover,
.view-btn.active {
  background: var(--primary-color);
  border-color: var(--primary-color);
}

.viewer-tools {
  display: flex;
  gap: var(--spacing-sm);
  background: var(--bg-overlay);
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
  backdrop-filter: blur(10px);
}

.tool-btn {
  width: 40px;
  height: 40px;
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--border-radius-sm);
  color: var(--text-white);
  font-size: var(--font-size-lg);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.tool-btn:hover {
  background: var(--primary-color);
  border-color: var(--primary-color);
}

.viewer-info {
  position: absolute;
  bottom: var(--spacing-lg);
  left: var(--spacing-lg);
  background: var(--bg-overlay);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  backdrop-filter: blur(10px);
}

.viewer-stats {
  display: flex;
  gap: var(--spacing-lg);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
}

.stat-label {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-white);
}

/* ==========================================================================
   PANEL DE COSTOS
   ========================================================================== */

.cost-panel {
  background: var(--bg-primary);
  border-left: 1px solid #e0e0e0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.cost-panel h3 {
  font-size: var(--font-size-lg);
  padding: var(--spacing-lg);
  margin: 0;
  border-bottom: 1px solid #e0e0e0;
  color: var(--text-primary);
}

.selected-furniture {
  flex: 1;
  padding: var(--spacing-lg);
  border-bottom: 1px solid #e0e0e0;
}

.selected-furniture h4 {
  font-size: var(--font-size-md);
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.furniture-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.empty-state {
  text-align: center;
  padding: var(--spacing-xxl) var(--spacing-lg);
  color: var(--text-secondary);
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  opacity: 0.5;
}

.empty-text {
  font-size: var(--font-size-md);
  margin-bottom: var(--spacing-sm);
}

.empty-hint {
  font-size: var(--font-size-sm);
  opacity: 0.7;
}

.furniture-list-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  border: 2px solid transparent;
  transition: var(--transition);
}

.furniture-list-item:hover {
  border-color: var(--primary-color);
}

.item-image {
  width: 40px;
  height: 40px;
  background: var(--primary-color);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-white);
  font-size: var(--font-size-md);
}

.item-details {
  flex: 1;
}

.item-name {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-primary);
}

.item-price {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

.item-actions {
  display: flex;
  gap: var(--spacing-xs);
}

.item-action {
  width: 24px;
  height: 24px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.item-action:hover {
  background: var(--bg-primary);
  color: var(--text-primary);
}

.cost-breakdown {
  padding: var(--spacing-lg);
  border-bottom: 1px solid #e0e0e0;
}

.cost-category {
  margin-bottom: var(--spacing-lg);
}

.cost-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.cost-summary {
  border-top: 2px solid #e0e0e0;
  padding-top: var(--spacing-md);
}

.cost-total {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  border-top: 2px solid var(--primary-color);
  padding-top: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}

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

@media (max-width: 1200px) {
  :root {
    --sidebar-width: 300px;
    --panel-width: 250px;
  }
}

@media (max-width: 968px) {
  .main-content {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
  }
  
  .config-panel,
  .cost-panel {
    position: fixed;
    top: var(--header-height);
    width: 100%;
    height: 40vh;
    z-index: 100;
    transform: translateY(100%);
    transition: transform 0.3s ease;
  }
  
  .config-panel.active,
  .cost-panel.active {
    transform: translateY(0);
  }
  
  .viewer-container {
    height: calc(100vh - var(--header-height));
  }
}

@media (max-width: 768px) {
  .header-content {
    padding: 0 var(--spacing-md);
  }
  
  .nav {
    display: none;
  }
  
  .logo h1 {
    font-size: var(--font-size-lg);
  }
  
  .furniture-grid {
    grid-template-columns: 1fr;
  }
  
  .viewer-stats {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
}