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

:root {
  /* Colores Solares */
  --primary-color: #FF6B00;
  --primary-dark: #E55A00;
  --secondary-color: #00A86B;
  --accent-color: #FFD700;
  --background-color: #F8FAFC;
  --surface-color: #FFFFFF;
  --text-primary: #1E293B;
  --text-secondary: #515b69;
  --text-muted: #667385;
  --border-color: #E2E8F0;
  --success-color: #10B981;
  --warning-color: #F59E0B;
  --error-color: #EF4444;
  
  /* Tipografía */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  /* Espaciado */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  
  /* Sombras */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Bordes */
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.375rem;
  --border-radius-lg: 0.5rem;
  --border-radius-xl: 0.75rem;
  --border-radius-2xl: 1rem;
  
  /* Transiciones */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background-color);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .container {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--spacing-8);
  }
}

/* Header */
.header {
  background: var(--surface-color);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-4) 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  font-weight: 700;
  font-size: var(--font-size-xl);
  color: var(--primary-color);
}

.logo img {
  width: 40px;
  height: 40px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo-main {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: #666;
}

.logo-sub {
  font-size: 0.9rem;
  font-weight: 600;
  color: #FFD700;
  margin-top: -2px;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-8);
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

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

.nav-link.external svg {
  width: 12px;
  height: 12px;
}

/* Botón hamburguesa */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 30px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 10;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 3px;
  transition: all 0.3s linear;
  position: relative;
  transform-origin: 1px;
}

.nav-toggle.active span:first-child {
  transform: rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: translateX(20px);
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
}

.hero-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 75% 75%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
  background-size: 200px 200px;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: white;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  margin-bottom: var(--spacing-6);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-12);
  opacity: 0.9;
  font-weight: 400;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  justify-content: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-6);
  border: none;
  border-radius: var(--border-radius-lg);
  font-weight: 600;
  font-size: var(--font-size-base);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

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

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

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

.btn-secondary:hover {
  background: #008F5A;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.btn-outline:hover {
  background: white;
  color: var(--primary-color);
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-large {
  padding: var(--spacing-4) var(--spacing-8);
  font-size: var(--font-size-lg);
}

/* Price Info Section */
.price-info {
  padding: var(--spacing-16) 0;
  background: var(--surface-color);
}

.price-card {
  background: var(--surface-color);
  border: 2px solid var(--primary-color);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-8);
  text-align: center;
  box-shadow: var(--shadow-md);
}

.price-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-4);
}

.price-header h3 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
}

.price-header svg {
  color: var(--primary-color);
}

.price-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-6);
}

.price-sources {
  list-style: none;
  text-align: left;
  max-width: 600px;
  margin: 0 auto var(--spacing-6);
}

.price-sources li {
  padding: var(--spacing-2) 0;
  color: var(--text-secondary);
}

.price-sources strong {
  color: var(--primary-color);
}

.price-update {
  padding-top: var(--spacing-4);
  border-top: 1px solid var(--border-color);
}

.update-text {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

/* Calculator Section */
.calculator {
  padding: var(--spacing-20) 0;
  background: var(--background-color);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-16);
}

.section-header h2 {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-4);
}

.section-header p {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
}

.calculator-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-12);
  max-width: 1000px;
  margin: 0 auto;
}

@media (min-width: 1024px) {
  .calculator-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.calculator-form {
  background: var(--surface-color);
  padding: var(--spacing-8);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: var(--spacing-6);
}

.form-group label {
  display: block;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-2);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

.form-group small {
  display: block;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-1);
}

.calculator-results {
  background: var(--surface-color);
  padding: var(--spacing-8);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-md);
}

.calculator-results h3 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-6);
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-4) 0;
  border-bottom: 1px solid var(--border-color);
}

.result-item:last-child {
  border-bottom: none;
}

.result-label {
  font-weight: 500;
  color: var(--text-secondary);
}

.result-value {
  font-weight: 700;
  color: var(--primary-color);
  font-size: var(--font-size-lg);
}

/* Types Section */
.types {
  padding: var(--spacing-20) 0;
  background: var(--surface-color);
}

.types-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-8);
  margin-top: var(--spacing-12);
}

@media (min-width: 768px) {
  .types-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.type-card {
  background: var(--surface-color);
  padding: var(--spacing-8);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: transform var(--transition-normal);
}

.type-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.type-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-6);
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.type-card h3 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-4);
}

.type-card p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-6);
}

.type-card ul {
  list-style: none;
  text-align: left;
}

.type-card li {
  padding: var(--spacing-2) 0;
  color: var(--text-secondary);
  position: relative;
  padding-left: var(--spacing-6);
}

.type-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success-color);
  font-weight: bold;
}

/* Contact Section */
.contact {
  padding: var(--spacing-20) 0;
  background: var(--background-color);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-12);
  max-width: 1000px;
  margin: 0 auto;
}

@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-info {
  background: var(--surface-color);
  padding: var(--spacing-8);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-md);
}

.contact-info h3 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-6);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-4) 0;
  color: var(--text-secondary);
}

.contact-item svg {
  color: var(--primary-color);
}

.contact-form {
  background: var(--surface-color);
  padding: var(--spacing-8);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-md);
}

/* Footer */
.footer {
  background: var(--text-primary);
  color: white;
  padding: var(--spacing-12) 0;
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
  text-align: center;
}

@media (min-width: 768px) {
  .footer-content {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-6);
  justify-content: center;
}

.footer-nav a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

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

.footer-nav svg {
  width: 12px;
  height: 12px;
}

.footer-tagline h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--primary-color);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }
.mb-8 { margin-bottom: var(--spacing-8); }

.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }
.mt-8 { margin-top: var(--spacing-8); }

.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.grid { display: grid; }

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

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

.animate-fade-in {
  animation: fadeIn 0.6s ease-out;
}

.animate-slide-in {
  animation: slideIn 0.6s ease-out;
}

/* ===== MODALES ===== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  box-sizing: border-box;
}

.modal-content {
  background: white;
  border-radius: 12px;
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  animation: modalSlideIn 0.3s ease-out;
}

.modal-content.large {
  max-width: 900px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 24px 0 24px;
  border-bottom: 1px solid #e5e7eb;
  margin-bottom: 24px;
}

.modal-header h2 {
  margin: 0;
  color: var(--primary-color);
  font-size: 1.5rem;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: #6b7280;
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  transition: all 0.2s ease;
}

.modal-close:hover {
  background-color: #f3f4f6;
  color: #374151;
}

.modal-body {
  padding: 0 24px 24px 24px;
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid #e5e7eb;
}

.modal-actions .btn {
  min-width: 140px;
}

/* Contenido de estimación rápida */
.quick-estimate-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.estimate-card {
  background: linear-gradient(135deg, var(--primary-color), #ff8c42);
  color: white;
  padding: 20px;
  border-radius: 12px;
  text-align: center;
}

.estimate-card h3 {
  margin: 0 0 8px 0;
  font-size: 1.1rem;
  font-weight: 600;
}

.estimate-card .value {
  font-size: 2rem;
  font-weight: 700;
  margin: 8px 0;
}

.estimate-card .label {
  font-size: 0.9rem;
  opacity: 0.9;
}

/* Contenido de cotización detallada */
.detailed-quote-summary {
  margin-bottom: 24px;
}

.quote-section {
  margin-bottom: 24px;
  padding: 20px;
  background: #f8fafc;
  border-radius: 8px;
  border-left: 4px solid var(--primary-color);
}

.quote-section h3 {
  margin: 0 0 16px 0;
  color: var(--primary-color);
  font-size: 1.2rem;
}

.quote-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
}

.quote-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid #e5e7eb;
}

.quote-item:last-child {
  border-bottom: none;
  font-weight: 600;
  color: var(--primary-color);
}

.quote-item .label {
  color: #6b7280;
}

.quote-item .value {
  font-weight: 600;
  color: #1f2937;
}

/* Animaciones de modal */
@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(-20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* Responsive para modales */
@media (max-width: 768px) {
  .modal {
    padding: 10px;
  }
  
  .modal-content {
    max-height: 95vh;
    max-width: 95vw;
    margin: 0;
  }
  
  .modal-content.large {
    max-width: 95vw;
  }
  
  .modal-header {
    padding: 16px 16px 0 16px;
    flex-wrap: wrap;
  }
  
  .modal-header h2 {
    font-size: 1.25rem;
    flex: 1;
    min-width: 0;
  }
  
  .modal-body {
    padding: 0 16px 16px 16px;
    overflow-y: auto;
  }
  
  .modal-actions {
    flex-direction: column;
    gap: 8px;
  }
  
  .modal-actions .btn {
    width: 100%;
    justify-content: center;
  }
  
  .quick-estimate-summary {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  
  .quote-grid {
    grid-template-columns: 1fr;
  }
  
  .estimate-card {
    padding: 16px;
  }
  
  .estimate-card h3 {
    font-size: 1rem;
  }
  
  .estimate-card .value {
    font-size: 1.5rem;
  }
  
  .quote-section {
    padding: 16px;
    margin-bottom: 16px;
  }
  
  .quote-section h3 {
    font-size: 1.1rem;
  }
}

@media (max-width: 480px) {
  .modal {
    padding: 5px;
  }
  
  .modal-content {
    max-height: 98vh;
    max-width: 98vw;
  }
  
  .modal-header {
    padding: 12px 12px 0 12px;
  }
  
  .modal-header h2 {
    font-size: 1.125rem;
  }
  
  .modal-body {
    padding: 0 12px 12px 12px;
  }
  
  .estimate-card {
    padding: 12px;
  }
  
  .estimate-card .value {
    font-size: 1.25rem;
  }
  
  .quote-section {
    padding: 12px;
  }
}