/**
 * Iran Index - Estilos Consolidados
 * Diseño moderno y responsive con Tailwind CSS
 */

/* ==================== Variables CSS ==================== */
:root {
  /* Colores principales - Diseño moderno */
  --primary: #1a202c;
  --secondary: #2d3748;
  --accent: #239F40;
  --accent-hover: #1e7e34;
  --accent-light: #4ade80;

  /* Backgrounds */
  --bg-primary: #ffffff;
  --bg-secondary: #f7fafc;
  --bg-tertiary: #edf2f7;
  --bg-dark: #1a202c;
  --bg-overlay: rgba(0, 0, 0, 0.5);

  /* Textos */
  --text-primary: #1a202c;
  --text-secondary: #4a5568;
  --text-light: #718096;
  --text-white: #ffffff;

  /* Bordes */
  --border-color: #e2e8f0;
  --border-radius: 0.5rem;
  --border-radius-lg: 1rem;
  --border-radius-xl: 1.5rem;

  /* 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);

  /* Espaciado */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  /* Tipografía */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 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;
  --font-size-6xl: 3.75rem;
}

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

html {
  scroll-behavior: smooth;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  margin: 0;
  padding: 0;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

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

/* ==================== Header ==================== */
.site-header {
  background-color: var(--bg-primary);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
  margin: 0;
  padding: 0;
  margin-bottom: 0 !important;
}

/* Eliminar espacios entre header y main */
.site-header + main,
header + main {
  margin-top: 0 !important;
  padding-top: 0 !important;
}

/* Asegurar que el primer elemento del main no tenga espacios */
main > *:first-child {
  margin-top: 0 !important;
  padding-top: 0 !important;
}

.header-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-logo {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  transition: color 0.3s ease;
}

.site-logo:hover {
  color: var(--accent);
}

.main-nav {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.main-nav a {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: color 0.3s ease;
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  transition: width 0.3s ease;
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

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

.nav-dropdown {
  position: relative;
}

/* Crear un puente invisible entre el link y el submenu */
.nav-dropdown::before {
  content: '';
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 0.5rem;
  background: transparent;
  z-index: 101;
}

.nav-dropdown-content {
  display: none;
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  background: var(--bg-primary);
  box-shadow: var(--shadow-lg);
  border-radius: var(--border-radius);
  padding: 0.5rem 0;
  min-width: 220px;
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-5px);
  transition: opacity 0.15s ease, visibility 0.15s ease, transform 0.15s ease;
}

.nav-dropdown:hover .nav-dropdown-content,
.nav-dropdown:hover::before {
  display: block;
}

.nav-dropdown:hover .nav-dropdown-content {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-content a {
  display: block;
  padding: 0.75rem 1.25rem;
  color: var(--text-secondary);
  white-space: nowrap;
  text-transform: none;
  letter-spacing: normal;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-dropdown-content a::after {
  display: none;
}

.nav-dropdown-content a:hover {
  background-color: var(--bg-secondary);
  color: var(--accent);
}

.btn-primary {
  background-color: var(--accent);
  color: var(--text-white);
  padding: 0.75rem 1.75rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: var(--font-size-sm);
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--text-white);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 4px;
}

.mobile-menu-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--text-primary);
  transition: 0.3s;
  border-radius: 2px;
}

.mobile-menu-toggle:hover span {
  background-color: var(--accent);
}

/* ==================== Footer ==================== */
.site-footer {
  background-color: var(--bg-dark);
  color: var(--text-light);
  padding: 4rem 0 2rem;
  margin-top: 4rem;
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-section h3 {
  color: var(--text-white);
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-section p {
  color: var(--text-light);
  line-height: 1.7;
  font-size: var(--font-size-sm);
}

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

.footer-section ul li {
  margin-bottom: 0.75rem;
}

.footer-section a {
  color: var(--text-light);
  transition: color 0.3s ease;
  font-size: var(--font-size-sm);
}

.footer-section a:hover {
  color: var(--accent-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--text-light);
}

/* ==================== Container ==================== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-narrow {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ==================== Hero Section ==================== */
.hero-section {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--text-white);
  text-align: center;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.7));
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  padding: 2rem;
}

.hero-title {
  font-size: var(--font-size-6xl);
  font-weight: 700;
  margin-bottom: 1.5rem;
  line-height: 1.1;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  margin-bottom: 2.5rem;
  opacity: 0.95;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-white);
  padding: 0.75rem 1.75rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: var(--font-size-sm);
  border: 2px solid var(--text-white);
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-secondary:hover {
  background-color: var(--text-white);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ==================== Cards ==================== */
.card {
  background-color: var(--bg-primary);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.card-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  background-color: var(--bg-tertiary);
}

.card-content {
  padding: 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  line-height: 1.3;
}

.card-description {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.7;
  flex-grow: 1;
}

.card-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--bg-secondary);
}

/* ==================== Grid Layouts ==================== */
.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ==================== Section Spacing ==================== */
.section {
  padding: 5rem 0;
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
  line-height: 1.2;
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.text-center {
  text-align: center;
}

/* ==================== Map Container ==================== */
#map {
  width: 100%;
  height: 650px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  margin: 2rem 0;
  border: 1px solid var(--border-color);
}

.map-legend {
  max-width: 600px;
  margin: 2rem auto;
  padding: 1.5rem;
  background: var(--bg-secondary);
  border-radius: var(--border-radius-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.map-legend-gradient {
  height: 24px;
  background: linear-gradient(to right, #22c55e, #eab308, #f59e0b, #dc2626);
  border-radius: 12px;
  margin-bottom: 1rem;
}

.map-legend-labels {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-weight: 600;
}

/* ==================== Feature Blocks ==================== */
.feature-block {
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  padding: 3rem 2rem;
  text-align: center;
  color: var(--text-white);
  border-radius: var(--border-radius-lg);
  margin-bottom: 1.5rem;
}

.feature-block-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  display: block;
}

.feature-block-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-white);
}

.feature-block-subtitle {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-sm);
  margin-bottom: 1rem;
}

/* ==================== Info Box ==================== */
.info-box {
  background: var(--bg-primary);
  padding: 2.5rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  margin: 2rem 0;
}

.info-box p {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.info-box p:last-child {
  margin-bottom: 0;
}

.info-box strong {
  color: var(--accent);
  font-weight: 600;
}

/* ==================== Responsive ==================== */
@media (max-width: 1024px) {
  .main-nav {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .main-nav.mobile-active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    box-shadow: var(--shadow-lg);
    padding: 1.5rem;
    gap: 1rem;
    border-top: 1px solid var(--border-color);
  }

  .main-nav.mobile-active .nav-dropdown-content {
    position: static;
    display: block;
    box-shadow: none;
    margin-top: 0.5rem;
    margin-left: 1rem;
  }

  .hero-title {
    font-size: var(--font-size-4xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-lg);
  }

  .section-title {
    font-size: var(--font-size-3xl);
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: 1rem;
  }

  .hero-section {
    min-height: 500px;
  }

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

  .section {
    padding: 3rem 0;
  }

  .section-title {
    font-size: var(--font-size-2xl);
  }

  #map {
    height: 450px;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 640px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

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

  .btn-primary,
  .btn-secondary {
    width: 100%;
    text-align: center;
  }

  .hero-title {
    font-size: var(--font-size-2xl);
  }

  .info-box {
    padding: 1.5rem;
  }

  #map {
    height: 350px;
  }
}

/* ==================== Utilities ==================== */
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.hidden {
  display: none;
}