/* ═══════════════════════════════════════════════════════════════
   TerabitCom — Corporate Website Styles
   Premium dark theme with glassmorphism, gradients & animations
   ═══════════════════════════════════════════════════════════════ */

/* ─── Google Fonts ─────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800;900&display=swap');

/* ─── CSS Custom Properties ────────────────────────────────────── */
:root {
  /* Brand Colors */
  --blue-primary: #148BEA;
  --blue-dark: #053DA8;
  --blue-navy: #070B2A;
  --orange-primary: #E08212;
  --gold: #F5B228;
  --white: #F0F3F3;

  /* Extended Palette */
  --blue-glow: rgba(20, 139, 234, 0.3);
  --blue-glow-strong: rgba(20, 139, 234, 0.5);
  --orange-glow: rgba(224, 130, 18, 0.3);
  --navy-light: #0d1340;
  --navy-lighter: #121a52;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-800: #1f2937;
  --success: #10b981;
  --error: #ef4444;

  /* Glass */
  --glass-bg: rgba(13, 19, 64, 0.6);
  --glass-border: rgba(20, 139, 234, 0.15);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --section-padding: 100px 0;
  --container-max: 1200px;
  --container-padding: 0 24px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-spring: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
}

/* ─── Reset & Base ─────────────────────────────────────────────── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--blue-navy);
  color: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

body.no-scroll {
  overflow: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

ul {
  list-style: none;
}

button {
  border: none;
  cursor: pointer;
  font-family: inherit;
  background: transparent;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

/* ─── Utility Classes ──────────────────────────────────────────── */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--container-padding);
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(20, 139, 234, 0.1);
  border: 1px solid rgba(20, 139, 234, 0.2);
  border-radius: var(--radius-full);
  color: var(--blue-primary);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
}

.section-badge svg {
  width: 16px;
  height: 16px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--white) 0%, var(--gray-400) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title .highlight {
  background: linear-gradient(135deg, var(--blue-primary) 0%, var(--gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--gray-400);
  max-width: 600px;
  margin: 0 auto;
}

/* ─── Buttons ──────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.btn:hover::after {
  opacity: 1;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue-primary) 0%, var(--blue-dark) 100%);
  color: var(--white);
  box-shadow: 0 4px 20px var(--blue-glow);
}

.btn-primary::after {
  background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue-primary) 100%);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--blue-glow-strong);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(240, 243, 243, 0.3);
}

.btn-secondary:hover {
  border-color: var(--blue-primary);
  background: rgba(20, 139, 234, 0.1);
  transform: translateY(-2px);
}

.btn-orange {
  background: linear-gradient(135deg, var(--orange-primary) 0%, var(--gold) 100%);
  color: var(--blue-navy);
  font-weight: 700;
  box-shadow: 0 4px 20px var(--orange-glow);
}

.btn-orange::after {
  background: linear-gradient(135deg, var(--gold) 0%, var(--orange-primary) 100%);
}

.btn-orange:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--orange-glow);
}

.btn-sm {
  padding: 10px 24px;
  font-size: 0.9rem;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ─── Preloader ────────────────────────────────────────────────── */
#preloader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--blue-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

#preloader.loaded {
  opacity: 0;
  visibility: hidden;
}

.preloader-spinner {
  width: 48px;
  height: 48px;
  border: 3px solid rgba(20, 139, 234, 0.2);
  border-top-color: var(--blue-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ═══════════════════════════════════════════════════════════════
   NAVBAR
   ═══════════════════════════════════════════════════════════════ */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: all var(--transition-base);
}

#navbar.scrolled {
  padding: 12px 0;
  background: rgba(7, 11, 42, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(20, 139, 234, 0.1);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

#navbar.nav-hidden {
  transform: translateY(-100%);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
  z-index: 1001;
}

.nav-logo .logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-dark));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px var(--blue-glow);
}

.nav-logo .logo-icon svg {
  width: 24px;
  height: 24px;
  color: white;
}

.nav-logo span {
  background: linear-gradient(135deg, var(--white) 0%, var(--blue-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links {
  display: flex;
  gap: 8px;
}

.nav-link {
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-400);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  position: relative;
}

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

.nav-link.active {
  background: rgba(20, 139, 234, 0.15);
  color: var(--blue-primary);
}

.nav-cta {
  display: flex;
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  z-index: 1001;
  width: 28px;
  height: 28px;
  justify-content: center;
  cursor: pointer;
}

.nav-toggle span {
  width: 100%;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition-base);
  transform-origin: center;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ═══════════════════════════════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════════════════════════════ */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(160deg, var(--blue-navy) 0%, #0a1045 50%, var(--blue-navy) 100%);
}

/* Gradient orbs */
#hero::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(20, 139, 234, 0.15) 0%, transparent 70%);
  top: -200px;
  right: -100px;
  animation: float-orb 8s ease-in-out infinite;
}

#hero::after {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(224, 130, 18, 0.1) 0%, transparent 70%);
  bottom: -200px;
  left: -100px;
  animation: float-orb 10s ease-in-out infinite reverse;
}

@keyframes float-orb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -30px) scale(1.1); }
}

#particles-canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: auto;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 120px 24px 80px;
  max-width: 900px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(20, 139, 234, 0.1);
  border: 1px solid rgba(20, 139, 234, 0.25);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--blue-primary);
  margin-bottom: 24px;
  animation: fadeInDown 0.8s ease forwards;
}

.hero-badge svg {
  width: 16px;
  height: 16px;
}

.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease 0.2s forwards;
  opacity: 0;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, var(--blue-primary) 0%, var(--gold) 60%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--gray-400);
  max-width: 650px;
  margin: 0 auto 40px;
  animation: fadeInUp 0.8s ease 0.4s forwards;
  opacity: 0;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
  animation: fadeInUp 0.8s ease 0.6s forwards;
  opacity: 0;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.8s forwards;
  opacity: 0;
}

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

.hero-stat-value {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--white);
}

.hero-stat-value .unit {
  font-size: 1rem;
  color: var(--blue-primary);
  font-weight: 600;
}

.hero-stat-label {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-top: 4px;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: fadeInUp 1s ease 1.2s forwards;
  opacity: 0;
}

.scroll-indicator span {
  font-size: 0.75rem;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.scroll-mouse {
  width: 24px;
  height: 36px;
  border: 2px solid var(--gray-500);
  border-radius: 12px;
  position: relative;
}

.scroll-mouse::after {
  content: '';
  width: 4px;
  height: 8px;
  background: var(--blue-primary);
  border-radius: 2px;
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  animation: scroll-dot 2s ease-in-out infinite;
}

@keyframes scroll-dot {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
  100% { transform: translateX(-50%) translateY(12px); opacity: 0; }
}

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

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ═══════════════════════════════════════════════════════════════
   SERVICES SECTION
   ═══════════════════════════════════════════════════════════════ */
#servicios {
  padding: var(--section-padding);
  position: relative;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-primary), var(--blue-dark));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

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

.service-card:hover {
  transform: translateY(-8px);
  border-color: rgba(20, 139, 234, 0.3);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 40px var(--blue-glow);
}

.service-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(20, 139, 234, 0.15), rgba(5, 61, 168, 0.15));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: all var(--transition-base);
}

.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-dark));
  box-shadow: 0 8px 25px var(--blue-glow);
}

.service-icon svg {
  width: 28px;
  height: 28px;
  color: var(--blue-primary);
  transition: color var(--transition-base);
}

.service-card:hover .service-icon svg {
  color: var(--white);
}

.service-card.accent .service-icon {
  background: linear-gradient(135deg, rgba(224, 130, 18, 0.15), rgba(245, 178, 40, 0.15));
}

.service-card.accent .service-icon svg {
  color: var(--orange-primary);
}

.service-card.accent:hover .service-icon {
  background: linear-gradient(135deg, var(--orange-primary), var(--gold));
}

.service-card.accent:hover .service-icon svg {
  color: var(--blue-navy);
}

.service-card.accent::before {
  background: linear-gradient(90deg, var(--orange-primary), var(--gold));
}

.service-card.accent:hover {
  border-color: rgba(224, 130, 18, 0.3);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 40px var(--orange-glow);
}

.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--white);
}

.service-card p {
  font-size: 0.95rem;
  color: var(--gray-400);
  line-height: 1.6;
}

/* ═══════════════════════════════════════════════════════════════
   PLANS SECTION
   ═══════════════════════════════════════════════════════════════ */
#planes {
  padding: var(--section-padding);
  position: relative;
  background: linear-gradient(180deg, transparent 0%, rgba(5, 61, 168, 0.05) 50%, transparent 100%);
}

/* Toggle */
.plan-toggle-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
}

.toggle-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--gray-500);
  transition: color var(--transition-fast);
  cursor: pointer;
}

.toggle-label.active {
  color: var(--white);
}

.toggle-switch {
  position: relative;
  width: 52px;
  height: 28px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--navy-lighter);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--transition-base);
  border: 2px solid rgba(20, 139, 234, 0.3);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--blue-primary);
  bottom: 2px;
  left: 2px;
  transition: transform var(--transition-spring);
  box-shadow: 0 2px 8px var(--blue-glow);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(24px);
}

/* Plan Cards */
.plans-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  align-items: stretch;
}

.plan-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.plan-card:hover {
  transform: translateY(-4px);
  border-color: rgba(20, 139, 234, 0.25);
}

.plan-card.featured {
  border-color: var(--blue-primary);
  background: linear-gradient(170deg, rgba(20, 139, 234, 0.1) 0%, var(--glass-bg) 40%);
  box-shadow: 0 0 60px rgba(20, 139, 234, 0.15);
}

.plan-card.featured:hover {
  box-shadow: 0 0 80px rgba(20, 139, 234, 0.25);
}

.plan-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 4px 14px;
  background: linear-gradient(135deg, var(--orange-primary), var(--gold));
  color: var(--blue-navy);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.plan-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--gray-400);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.plan-speed {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--white);
  margin-bottom: 4px;
}

.plan-speed .speed-unit {
  font-size: 1rem;
  color: var(--blue-primary);
  font-weight: 600;
}

.plan-speed-desc {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-bottom: 24px;
}

.plan-price {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(240, 243, 243, 0.08);
}

.plan-price-value {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--white);
  transition: all var(--transition-fast);
}

.plan-price-value.price-changing {
  opacity: 0;
  transform: translateY(-10px);
}

.plan-price-currency {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--gray-400);
  vertical-align: super;
}

.plan-price-period {
  font-size: 0.9rem;
  color: var(--gray-500);
}

.plan-features {
  flex: 1;
  margin-bottom: 32px;
}

.plan-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--gray-400);
}

.plan-feature svg {
  width: 18px;
  height: 18px;
  color: var(--blue-primary);
  flex-shrink: 0;
}

.plan-feature.included {
  color: var(--white);
}

.plan-card.featured .plan-feature.included svg {
  color: var(--gold);
}

.plan-cta {
  margin-top: auto;
}

.plan-cta .btn {
  width: 100%;
}

/* ═══════════════════════════════════════════════════════════════
   WHY TERABITCOM — STATS
   ═══════════════════════════════════════════════════════════════ */
#ventajas {
  padding: var(--section-padding);
  position: relative;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  margin-bottom: 80px;
}

.stat-card {
  text-align: center;
  padding: 40px 24px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: rgba(20, 139, 234, 0.3);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.stat-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, rgba(20, 139, 234, 0.15), rgba(5, 61, 168, 0.15));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-icon svg {
  width: 24px;
  height: 24px;
  color: var(--blue-primary);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--gray-400);
}

/* Advantages Grid */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.advantage-item {
  display: flex;
  gap: 16px;
  padding: 24px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.advantage-item:hover {
  border-color: rgba(20, 139, 234, 0.25);
  transform: translateX(4px);
}

.advantage-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  background: linear-gradient(135deg, rgba(20, 139, 234, 0.15), rgba(5, 61, 168, 0.15));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.advantage-icon svg {
  width: 22px;
  height: 22px;
  color: var(--blue-primary);
}

.advantage-content h4 {
  font-size: 1rem;
  margin-bottom: 4px;
  color: var(--white);
}

.advantage-content p {
  font-size: 0.85rem;
  color: var(--gray-400);
  line-height: 1.5;
}

/* ═══════════════════════════════════════════════════════════════
   COVERAGE SECTION
   ═══════════════════════════════════════════════════════════════ */
#cobertura {
  padding: var(--section-padding);
  position: relative;
  background: linear-gradient(180deg, transparent 0%, rgba(5, 61, 168, 0.05) 50%, transparent 100%);
}

.coverage-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.coverage-visual {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 40px;
  min-height: 400px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.coverage-map-placeholder {
  width: 100%;
  text-align: center;
}

.coverage-map-placeholder svg {
  width: 200px;
  height: 200px;
  margin: 0 auto 24px;
  color: var(--blue-primary);
  opacity: 0.6;
}

.coverage-zones {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 16px;
}

.coverage-zone {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(20, 139, 234, 0.1);
  border: 1px solid rgba(20, 139, 234, 0.15);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  color: var(--gray-400);
}

.coverage-zone .zone-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue-primary);
}

.coverage-zone .zone-dot.active {
  background: var(--success);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
}

.coverage-zone .zone-dot.expanding {
  background: var(--gold);
}

.coverage-form-wrapper {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 40px;
}

.coverage-form-wrapper h3 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.coverage-form-wrapper p {
  color: var(--gray-400);
  margin-bottom: 32px;
  font-size: 0.95rem;
}

.coverage-form .form-group {
  margin-bottom: 20px;
}

.coverage-form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-400);
  margin-bottom: 8px;
}

.coverage-form input,
.coverage-form select {
  width: 100%;
  padding: 14px 16px;
  background: rgba(7, 11, 42, 0.6);
  border: 1px solid rgba(20, 139, 234, 0.15);
  border-radius: var(--radius-md);
  color: var(--white);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  outline: none;
}

.coverage-form input:focus,
.coverage-form select:focus {
  border-color: var(--blue-primary);
  box-shadow: 0 0 0 3px rgba(20, 139, 234, 0.1);
}

.coverage-form input::placeholder {
  color: var(--gray-600);
}

.coverage-form select option {
  background: var(--blue-navy);
  color: var(--white);
}

/* ═══════════════════════════════════════════════════════════════
   TESTIMONIALS SECTION
   ═══════════════════════════════════════════════════════════════ */
#testimonios {
  padding: var(--section-padding);
  position: relative;
  overflow: hidden;
}

.testimonial-slider {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.testimonial-viewport {
  overflow: hidden;
  border-radius: var(--radius-xl);
}

.testimonial-track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}

.testimonial-card {
  min-width: 100%;
  padding: 48px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  text-align: center;
}

.testimonial-stars {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-bottom: 24px;
}

.testimonial-stars svg {
  width: 20px;
  height: 20px;
  color: var(--gold);
  fill: var(--gold);
}

.testimonial-text {
  font-size: 1.15rem;
  color: var(--gray-400);
  line-height: 1.8;
  margin-bottom: 32px;
  font-style: italic;
}

.testimonial-text::before {
  content: '"';
  font-size: 3rem;
  color: var(--blue-primary);
  opacity: 0.3;
  line-height: 0;
  vertical-align: -0.6em;
  margin-right: 4px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.testimonial-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
  flex-shrink: 0;
}

.testimonial-info h4 {
  font-size: 1rem;
  color: var(--white);
  margin-bottom: 2px;
}

.testimonial-info span {
  font-size: 0.85rem;
  color: var(--gray-500);
}

/* Slider Controls */
.testimonial-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-top: 32px;
}

.testimonial-arrow {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  color: var(--gray-400);
}

.testimonial-arrow:hover {
  background: rgba(20, 139, 234, 0.15);
  border-color: var(--blue-primary);
  color: var(--white);
}

.testimonial-arrow svg {
  width: 18px;
  height: 18px;
}

.testimonial-dots {
  display: flex;
  gap: 8px;
}

.testimonial-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gray-600);
  cursor: pointer;
  transition: all var(--transition-base);
}

.testimonial-dot.active {
  background: var(--blue-primary);
  box-shadow: 0 0 10px var(--blue-glow);
  transform: scale(1.2);
}

/* ═══════════════════════════════════════════════════════════════
   CONTACT SECTION
   ═══════════════════════════════════════════════════════════════ */
#contacto {
  padding: var(--section-padding);
  position: relative;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.contact-info > p {
  color: var(--gray-400);
  font-size: 1.05rem;
  line-height: 1.7;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.contact-method:hover {
  border-color: rgba(20, 139, 234, 0.3);
  transform: translateX(4px);
}

.contact-method-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(20, 139, 234, 0.15), rgba(5, 61, 168, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-method-icon svg {
  width: 22px;
  height: 22px;
  color: var(--blue-primary);
}

.contact-method h4 {
  font-size: 0.85rem;
  color: var(--gray-500);
  font-weight: 500;
  margin-bottom: 2px;
}

.contact-method p,
.contact-method a {
  font-size: 1rem;
  color: var(--white);
  font-weight: 500;
}

.contact-method a:hover {
  color: var(--blue-primary);
}

.social-links {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.social-link {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  color: var(--gray-400);
}

.social-link:hover {
  background: var(--blue-primary);
  border-color: var(--blue-primary);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px var(--blue-glow);
}

.social-link svg {
  width: 20px;
  height: 20px;
}

/* Contact Form */
.contact-form-wrapper {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 40px;
}

.contact-form .form-group {
  margin-bottom: 20px;
  position: relative;
}

.contact-form .form-group.error input,
.contact-form .form-group.error textarea {
  border-color: var(--error);
}

.contact-form .form-group.error::after {
  content: 'Este campo es requerido';
  position: absolute;
  bottom: -18px;
  left: 0;
  font-size: 0.75rem;
  color: var(--error);
}

.contact-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.contact-form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-400);
  margin-bottom: 8px;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 14px 16px;
  background: rgba(7, 11, 42, 0.6);
  border: 1px solid rgba(20, 139, 234, 0.15);
  border-radius: var(--radius-md);
  color: var(--white);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  outline: none;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  border-color: var(--blue-primary);
  box-shadow: 0 0 0 3px rgba(20, 139, 234, 0.1);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--gray-600);
}

.contact-form textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form select option {
  background: var(--blue-navy);
  color: var(--white);
}

.btn-submit {
  width: 100%;
  padding: 16px;
  font-size: 1rem;
}

.btn-submit.success {
  background: linear-gradient(135deg, var(--success), #059669) !important;
  box-shadow: 0 4px 20px rgba(16, 185, 129, 0.3) !important;
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */
#footer {
  padding: 80px 0 0;
  background: linear-gradient(180deg, var(--blue-navy) 0%, #050820 100%);
  border-top: 1px solid rgba(20, 139, 234, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(240, 243, 243, 0.06);
}

.footer-brand p {
  color: var(--gray-400);
  font-size: 0.9rem;
  margin-top: 16px;
  margin-bottom: 24px;
  line-height: 1.7;
  max-width: 320px;
}

.footer-heading {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--gray-400);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-links a:hover {
  color: var(--blue-primary);
  transform: translateX(4px);
}

.footer-bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  font-size: 0.85rem;
  color: var(--gray-500);
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a {
  font-size: 0.85rem;
  color: var(--gray-500);
}

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

/* ═══════════════════════════════════════════════════════════════
   BACK TO TOP BUTTON
   ═══════════════════════════════════════════════════════════════ */
#back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-dark));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px var(--blue-glow);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
  cursor: pointer;
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

#back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px var(--blue-glow-strong);
}

#back-to-top svg {
  width: 20px;
  height: 20px;
}

/* ═══════════════════════════════════════════════════════════════
   SCROLL ANIMATIONS
   ═══════════════════════════════════════════════════════════════ */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.7s cubic-bezier(0.25, 1, 0.5, 1);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.stagger-item {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}

.stagger-item.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE DESIGN
   ═══════════════════════════════════════════════════════════════ */

/* Tablet */
@media (max-width: 1024px) {
  .coverage-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-stats {
    gap: 32px;
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --section-padding: 70px 0;
  }

  /* Navbar */
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 360px;
    height: 100vh;
    background: rgba(7, 11, 42, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 48px;
    transition: right var(--transition-base);
    border-left: 1px solid rgba(20, 139, 234, 0.1);
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-links {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }

  .nav-link {
    font-size: 1.1rem;
    padding: 12px 24px;
  }

  /* Hero */
  .hero-content {
    padding: 100px 20px 60px;
  }

  .hero-stats {
    gap: 24px;
  }

  .hero-stat-value {
    font-size: 1.8rem;
  }

  .scroll-indicator {
    display: none;
  }

  /* Plans */
  .plans-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  /* Contact */
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .contact-form .form-row {
    grid-template-columns: 1fr;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .footer-legal {
    justify-content: center;
  }

  /* Stats */
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

  /* Testimonials */
  .testimonial-card {
    padding: 32px 24px;
  }

  .testimonial-text {
    font-size: 1rem;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .section-title {
    font-size: clamp(1.75rem, 5vw, 2.5rem);
  }

  /* Coverage */
  .coverage-visual {
    min-height: 300px;
  }
}

/* Small Mobile */
@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .hero-cta .btn {
    width: 100%;
    max-width: 280px;
  }

  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }

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

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

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

  .plan-card {
    padding: 32px 24px;
  }

  #back-to-top {
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
  }
}

/* ─── Reduced Motion ──────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .animate-on-scroll,
  .stagger-item {
    opacity: 1;
    transform: none;
  }

  html {
    scroll-behavior: auto;
  }
}