/* ============================================================================
   ACHOTELECOM - HOJA DE ESTILOS PRINCIPAL
   ============================================================================
   Estructura de este archivo:
     1. Reset y variables CSS (:root)
     2. Tipografía y elementos base
     3. Header y navegación
     4. Hero section
     5. Botones
     6. Sección de operadoras (grid + cards)
     7. Modal de contacto
     8. Footer
     9. Animaciones
    10. Responsive (768px y 480px)

   Paleta de colores global:
     --color-navy:  #0F1B2E  (fondo principal)
     --color-cyan:  #00D4FF  (acento principal)
     --color-lime:  #00FF00  (acento secundario)

   Nota: Los colores de cada operadora se aplican inline desde PHP
   usando los valores definidos en includes/datos.php.
   ============================================================================ */

/* ============================================================================
   ACHOTELECOM - ESTILOS PRINCIPALES
   Diseño: Minimalismo Corporativo Moderno
   Colores: Azul marino (#0F1B2E), Cian (#00D4FF), Verde lima (#00FF00)
   ============================================================================ */

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

:root {
  /* Paleta de colores */
  --color-navy: #0F1B2E;
  --color-cyan: #00D4FF;
  --color-lime: #00FF00;
  --color-white: #FFFFFF;
  --color-light-gray: #F5F5F5;
  --color-dark-gray: #333333;
  
  /* Colores de operadoras */
  --color-digi: #0066CC;
  --color-masmovil: #FFB800;
  --color-jazztel: #9933FF;
  --color-pepephone: #FF3366;
  --color-symio: #00CC66;
  --color-lowi: #FF6600;
  --color-vodafone: #CC0000;
  --color-finetwork: #FF0000;
  
  /* Espaciado */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  /* Tipografía */
  --font-primary: 'Poppins', sans-serif;
  --font-secondary: 'Inter', 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: 2rem;
  --font-size-4xl: 2.5rem;
  
  /* Sombras */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
  
  /* Bordes */
  --border-radius-sm: 0.375rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 0.75rem;
  --border-radius-xl: 1rem;
}

/* ============================================================================
   TIPOGRAFÍA Y ELEMENTOS BASE
   ============================================================================ */

html {
  scroll-behavior: smooth;
}

/* Offset para header sticky en anclas */
[id] {
  scroll-margin-top: 80px;
}

body {
  font-family: var(--font-secondary);
  background-color: var(--color-navy);
  color: var(--color-white);
  line-height: 1.6;
  font-size: var(--font-size-base);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--font-size-4xl);
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

p {
  margin-bottom: var(--spacing-md);
  color: rgba(255, 255, 255, 0.9);
}

a {
  color: var(--color-cyan);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--color-lime);
}

/* ============================================================================
   HEADER Y NAVEGACIÓN
   ============================================================================ */

header {
  background-color: rgba(15, 27, 46, 0.95);
  backdrop-filter: blur(10px);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(0, 212, 255, 0.1);
  /* Necesario para posicionar el menú móvil desplegado */
  overflow: visible;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-cyan);
  font-family: var(--font-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo span {
  color: var(--color-lime);
}

nav ul {
  list-style: none;
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

nav a {
  color: var(--color-white);
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

nav a:hover,
nav a.active {
  color: var(--color-cyan);
}

nav a.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-cyan);
}

/* ============================================================================
   HERO SECTION
   ============================================================================ */

.hero {
  background: linear-gradient(135deg, rgba(15, 27, 46, 0.8) 0%, rgba(26, 42, 62, 0.8) 100%), url('../assets/hero-telecom-network.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  padding: var(--spacing-2xl) var(--spacing-md);
  position: relative;
  overflow: hidden;
  min-height: 600px;
  display: flex;
  align-items: center;
}

.hero::after {
  display: none;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    repeating-linear-gradient(
      0deg,
      rgba(0, 212, 255, 0.03) 0px,
      rgba(0, 212, 255, 0.03) 1px,
      transparent 1px,
      transparent 2px
    ),
    repeating-linear-gradient(
      90deg,
      rgba(0, 212, 255, 0.03) 0px,
      rgba(0, 212, 255, 0.03) 1px,
      transparent 1px,
      transparent 2px
    );
  background-size: 50px 50px;
  pointer-events: none;
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
  padding: 0 var(--spacing-md);
  max-width: 600px;
}

.hero h1 {
  font-size: clamp(1.8rem, 5vw, 3rem);
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-cyan), var(--color-lime));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: var(--font-size-lg);
  max-width: 600px;
  margin-bottom: var(--spacing-lg);
  color: rgba(255, 255, 255, 0.8);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* ============================================================================
   BOTONES
   ============================================================================ */

.btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--border-radius-md);
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: var(--font-size-base);
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-cyan), #00B8CC);
  color: var(--color-navy);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 212, 255, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--color-cyan);
  border: 2px solid var(--color-cyan);
}

.btn-secondary:hover {
  background: rgba(0, 212, 255, 0.1);
  transform: translateY(-2px);
}

.btn-small {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
}

/* ============================================================================
   SECCIÓN DE OPERADORAS
   ============================================================================ */

.section {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-md);
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-title h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
}

.section-title p {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.7);
  max-width: 600px;
  margin: 0 auto;
}

.operadoras-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.operadora-card {
  background: linear-gradient(135deg, #1A2A3E 0%, #0F1B2E 100%);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.operadora-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-cyan), var(--color-lime));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.operadora-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 212, 255, 0.5);
  box-shadow: 0 20px 40px rgba(0, 212, 255, 0.15);
}

.operadora-card:hover::before {
  transform: scaleX(1);
}

.operadora-header {
  margin-bottom: var(--spacing-md);
}

.operadora-nombre {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.operadora-slogan {
  color: var(--color-cyan);
  font-size: var(--font-size-sm);
  font-style: italic;
}

.operadora-descripcion {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.8em;
}

.operadora-servicios {
  list-style: none;
  margin-bottom: var(--spacing-md);
}

.operadora-servicios li {
  padding: var(--spacing-xs) 0;
  padding-left: var(--spacing-md);
  position: relative;
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
}

.operadora-servicios li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-lime);
  font-weight: bold;
}

.operadora-destacado {
  background: rgba(0, 212, 255, 0.1);
  border-left: 3px solid var(--color-cyan);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  font-weight: 600;
  color: var(--color-cyan);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-sm);
}

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

.operadora-botones .btn {
  flex: 1;
  justify-content: center;
}

/* ============================================================================
   MODAL DE CONTACTO
   ============================================================================ */

.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  z-index: 1000;
  animation: fadeIn 0.3s ease;
}

.modal-overlay.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal {
  background: linear-gradient(135deg, #1A2A3E 0%, #0F1B2E 100%);
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-2xl);
  max-width: 580px;
  width: 95%;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp 0.3s ease;
  position: relative;
}

.modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: none;
  border: none;
  color: var(--color-white);
  font-size: var(--font-size-xl);
  cursor: pointer;
  transition: color 0.3s ease;
}

.modal-close:hover {
  color: var(--color-cyan);
}

.modal-title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-lg);
  color: var(--color-cyan);
}

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

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

.form-group label .required {
  color: #FF4444;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-sm);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: var(--border-radius-md);
  color: var(--color-white);
  font-family: var(--font-secondary);
  font-size: var(--font-size-base);
  transition: all 0.3s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--color-cyan);
  box-shadow: 0 0 10px rgba(0, 212, 255, 0.2);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

/* Select del formulario — idéntico a los inputs */
.form-group select {
  width: 100%;
  padding: var(--spacing-sm);
  padding-right: 2rem;
  background: rgba(255, 255, 255, 0.1) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2300D4FF' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 10px center;
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: var(--border-radius-md);
  color: var(--color-white);
  font-family: var(--font-secondary);
  font-size: var(--font-size-base);
  transition: all 0.3s ease;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  height: 46px;
  box-sizing: border-box;
}
.form-group select option {
  background: #1A2A3E;
  color: var(--color-white);
}
.form-group select:focus {
  outline: none;
  background-color: rgba(255, 255, 255, 0.15);
  border-color: var(--color-cyan);
  box-shadow: 0 0 10px rgba(0, 212, 255, 0.2);
}
/* Altura uniforme inputs y select */
.form-group input,
.form-group select {
  height: 46px;
  box-sizing: border-box;
}
.form-group textarea {
  box-sizing: border-box;
}
/* Labels de la sección de dirección: no se desbordan */
.form-group label {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
}
/* Responsive: dirección colapsa a 2 columnas en móvil */
@media (max-width: 520px) {
  #modalOverlay .modal [style*="grid-template-columns"] {
    grid-template-columns: 1fr 1fr !important;
  }
}
@media (max-width: 360px) {
  #modalOverlay .modal [style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }
}

.form-hint {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.6);
  margin-top: var(--spacing-xs);
}

.form-buttons {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-2xl);
}

.form-buttons .btn {
  flex: 1;
  justify-content: center;
}

/* ============================================================================
   FOOTER
   ============================================================================ */

footer {
  background: linear-gradient(135deg, #0F1B2E 0%, #1A2A3E 100%);
  border-top: 1px solid rgba(0, 212, 255, 0.1);
  padding: var(--spacing-2xl) var(--spacing-md);
  margin-top: var(--spacing-2xl);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
  color: var(--color-cyan);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.3s ease;
}

.footer-section ul li a:hover {
  color: var(--color-cyan);
}

.footer-bottom {
  border-top: 1px solid rgba(0, 212, 255, 0.1);
  padding-top: var(--spacing-lg);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-sm);
}

/* ============================================================================
   ANIMACIONES
   ============================================================================ */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    transform: translateY(30px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes floatPhone {
  0%, 100% {
    transform: translateY(-50%) translateY(0px);
  }
  50% {
    transform: translateY(-50%) translateY(-20px);
  }
}

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

@media (max-width: 768px) {
  /* Hamburger: ocultar nav, mostrar botón */
  .header-container {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    gap: 0;
  }

  .nav-toggle {
    display: flex !important;
  }

  nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(15, 27, 46, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 212, 255, 0.2);
    z-index: 200;
    padding: .5rem 0;
  }

  nav.open {
    display: block;
  }

  nav ul {
    flex-direction: column;
    gap: 0;
    width: 100%;
  }

  nav a {
    display: block;
    padding: .85rem var(--spacing-md);
    border-bottom: 1px solid rgba(0, 212, 255, 0.06);
  }

  .hero {
    min-height: 400px;
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .hero::after {
    width: 200px;
    height: 280px;
    right: 2%;
    opacity: 0.7;
  }

  .hero h1 {
    font-size: var(--font-size-3xl);
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    width: 100%;
  }

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

  .section {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .modal {
    padding: var(--spacing-lg);
  }

  .form-buttons {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .hero::after {
    display: none;
  }



  h1 {
    font-size: var(--font-size-2xl);
  }

  h2 {
    font-size: var(--font-size-xl);
  }

  .operadora-botones {
    flex-direction: column;
  }

  .operadora-botones .btn {
    width: 100%;
  }
}