@import url('https://fonts.googleapis.com/css2?family=Noto+Serif:ital,wght@0,400;0,700;1,400&family=Manrope:wght@300;400;600;800&family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200&display=swap');

/* ==========================================================================
   Design System: The Italian Editorial
   ========================================================================== */

:root {
  /* Colors */
  --primary-azzurro: #004e92;
  --primary-container: #0066bc;
  --tricolore-green: #006d34;
  --tricolore-red: #a00016;
  --on-surface: #1a1c1c; /* Deep black for text */
  --on-surface-variant: #414752;
  --surface: #f9f9f9;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f3f3f4;
  --outline-variant: #c1c6d4;

  /* Typography */
  --font-headline: 'Noto Serif', serif;
  --font-body: 'Manrope', sans-serif;
  --font-label: 'Manrope', sans-serif;

  /* Elevation */
  --ambient-shadow: 0px 12px 32px rgba(26, 28, 28, 0.06);

  /* Spacing */
  --spacing-4: 1rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  
  /* Radii */
  --radius-sm: 0.125rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-full: 9999px;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

html {
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  padding: 0;
  background-color: var(--surface);
  color: var(--on-surface);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headline);
  color: var(--on-surface);
  margin-top: 0;
}

/* ==========================================================================
   Layout & Grid (Asymmetric Editorial)
   ========================================================================== */

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

.editorial-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 2rem;
}

.section {
  padding: var(--spacing-20) 0;
}

.section-low {
  background-color: var(--surface-container-low);
  padding: var(--spacing-20) 0;
}

.section-white {
  background-color: var(--surface-container-lowest);
  padding: var(--spacing-20) 0;
}

/* ==========================================================================
   Typography Classes
   ========================================================================== */

.display-lg {
  font-size: 3.5rem;
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.headline-lg {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.body-lg {
  font-size: 1.125rem;
  font-weight: 300;
  color: var(--on-surface-variant);
}

.label-md {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

.label-primary {
  color: var(--primary-azzurro);
}

.label-secondary {
  color: var(--tricolore-green);
}

.label-tertiary {
  color: var(--tricolore-red);
}

/* ==========================================================================
   Components
   ========================================================================== */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  border-radius: var(--radius-md);
  font-family: var(--font-label);
  font-size: 0.65rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
}

.btn-primary {
  background-color: var(--primary-azzurro);
  color: white;
  box-shadow: var(--ambient-shadow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-azzurro), var(--primary-container));
  transform: translateY(-2px);
  box-shadow: 0px 16px 40px rgba(0, 78, 146, 0.2);
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary-azzurro);
  border: 1px solid rgba(193, 198, 212, 0.5); /* Ghost border */
}

.btn-secondary:hover {
  background-color: rgba(0, 78, 146, 0.05);
}

.btn-tertiary {
  background-color: transparent;
  color: var(--on-surface);
  padding: 0.5rem 0;
  border-radius: 0;
  border-bottom: 2px solid var(--on-surface);
}

.btn-tertiary:hover {
  border-image: linear-gradient(to right, var(--tricolore-green) 33%, white 33%, white 66%, var(--tricolore-red) 66%) 1;
}

/* Cards */
.card {
  background-color: var(--surface-container-lowest);
  padding: var(--spacing-8) var(--spacing-6); /* Asymmetric padding */
  box-shadow: var(--ambient-shadow);
  border-radius: var(--radius-sm);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0px 24px 48px rgba(26, 28, 28, 0.08);
}

/* Form Inputs */
.input-field {
  width: 100%;
  padding: 1rem 0;
  background: transparent;
  border: none;
  border-bottom: 2px solid var(--outline-variant);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--on-surface);
  transition: border-color 0.3s ease;
}

.input-field:focus {
  outline: none;
  border-bottom-color: var(--primary-azzurro);
}

/* Material Icons */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* Tricolore Divider */
.tricolore-line {
  height: 2px;
  display: flex;
  width: 100%;
  opacity: 0.9;
}

.tricolore-green { background-color: var(--tricolore-green); flex: 1; }
.tricolore-white { background-color: #ffffff; flex: 1; }
.tricolore-red { background-color: var(--tricolore-red); flex: 1; }

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 50;
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.navbar .nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 5rem;
}

.navbar-logo img {
  height: 3rem;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  font-family: var(--font-label);
  font-size: 0.65rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--on-surface-variant);
  transition: color 0.3s ease;
  position: relative;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary-azzurro);
}

/* Hero Overlay Gradient */
.hero-overlay {
  background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4));
}

/* Footer */
.footer {
  background-color: var(--surface-container-lowest);
  padding: var(--spacing-16) 0 var(--spacing-8) 0;
  border-top: 1px solid var(--surface-container-low);
}

/* Utilities */
.text-center { text-align: center; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-4 { gap: 1rem; }
.gap-8 { gap: 2rem; }
.w-full { width: 100%; }

/* Responsive Grid Adjustments */
@media (max-width: 768px) {
  .editorial-grid {
    grid-template-columns: 1fr;
  }
  
  /* Sobrescribe cualquier 'grid-column: span X' en línea para evitar desbordamientos */
  .editorial-grid > * {
    grid-column: 1 / -1 !important;
  }
  
  .display-lg {
    font-size: 2.5rem;
  }
  .headline-lg {
    font-size: 1.5rem;
  }
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 5rem;
    left: 0;
    width: 100%;
    background-color: var(--surface-container-lowest);
    padding: 2rem;
    box-shadow: 0px 12px 32px rgba(0,0,0,0.1);
  }
  .nav-links.active {
    display: flex;
  }
  .nav-actions {
    display: flex;
    cursor: pointer;
  }
}

/* Floating Elements */
.whatsapp-float {
  position: fixed;
  width: 60px;
  height: 60px;
  bottom: 20px;
  right: 20px;
  background-color: #25d366;
  color: #FFF;
  border-radius: 50px;
  text-align: center;
  font-size: 30px;
  box-shadow: 2px 2px 3px #999;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
  text-decoration: none;
}
.whatsapp-float:hover {
  transform: scale(1.1);
  color: white;
}
.whatsapp-float svg {
  width: 35px;
  height: 35px;
}

.expo-popup {
  position: fixed;
  bottom: 20px;
  left: 20px;
  width: 300px;
  background: white;
  border-radius: var(--radius-sm);
  box-shadow: var(--ambient-shadow);
  z-index: 100;
  overflow: hidden;
  transition: transform 0.3s ease, opacity 0.3s ease;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
}
.expo-popup.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.expo-popup-close {
  position: absolute;
  top: 5px;
  right: 5px;
  background: rgba(0,0,0,0.5);
  color: white;
  border: none;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}