/* ==========================================================================
   Variables y Tokens de Diseño
   ========================================================================== */
:root {
  /* Colores Principales */
  --color-primary: #0A6EBD;
  --color-primary-dark: #0A2540;
  --color-accent: #22D3EE;
  --color-accent-warm: #FF6B35;
  
  /* Neutros */
  --color-neutral-light: #F8FAFC;
  --color-neutral-mid: #64748B;
  --color-neutral-dark: #1E293B;
  --color-white: #ffffff;
  
  /* Estados */
  --color-success: #10B981;

  /* Gradientes */
  --gradient-hero: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  --gradient-card: linear-gradient(180deg, var(--color-neutral-light) 0%, #E0F2FE 100%);

  /* Tipografía */
  --font-heading: 'Inter', system-ui, sans-serif; /* Podría ser Space Grotesk */
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Espaciado */
  --spacing-1: 0.25rem;  /* 4px */
  --spacing-2: 0.5rem;   /* 8px */
  --spacing-3: 0.75rem;  /* 12px */
  --spacing-4: 1rem;     /* 16px */
  --spacing-6: 1.5rem;   /* 24px */
  --spacing-8: 2rem;     /* 32px */
  --spacing-12: 3rem;    /* 48px */
  --spacing-16: 4rem;    /* 64px */
  --spacing-24: 6rem;    /* 96px */
  --spacing-32: 8rem;    /* 128px */

  /* Bordes */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Sombras */
  --shadow-sm: 0 2px 8px rgba(10, 37, 64, 0.04);
  --shadow-md: 0 4px 24px rgba(10, 37, 64, 0.08);
  --shadow-lg: 0 8px 32px rgba(10, 37, 64, 0.12);
  --shadow-btn-orange: 0 8px 24px rgba(255, 107, 53, 0.35);

  /* Transiciones */
  --transition-fast: 150ms ease-out;
  --transition-normal: 250ms ease-out;
  --transition-slow: 400ms ease-out;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-neutral-dark);
  background-color: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-primary-dark);
}

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

a:hover {
  color: var(--color-primary-dark);
}

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

ul {
  list-style: none;
}

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

/* ==========================================================================
   Tipografía Fluida (Escala)
   ========================================================================== */
.text-h1 { font-size: clamp(2.5rem, 5vw + 1rem, 4rem); } /* 40px a 64px */
.text-h2 { font-size: clamp(2rem, 4vw + 1rem, 3rem); }   /* 32px a 48px */
.text-h3 { font-size: clamp(1.5rem, 3vw + 0.5rem, 2rem); } /* 24px a 32px */
.text-lg { font-size: 1.125rem; } /* 18px */
.text-base { font-size: 1rem; }    /* 16px */
.text-sm { font-size: 0.875rem; }  /* 14px */
.text-mono { font-family: var(--font-mono); }

/* ==========================================================================
   Layout / Grid
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-6);
}

.section {
  padding: var(--spacing-24) 0;
}

.section-light {
  background-color: var(--color-neutral-light);
}

.grid {
  display: grid;
  gap: var(--spacing-6);
}

.grid-cols-2 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(1, 1fr); }

@media (min-width: 768px) {
  .grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-cols-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
  .section { padding: var(--spacing-32) 0; }
}

/* ==========================================================================
   Componentes: Botones
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-6);
  border-radius: var(--radius-sm);
  font-weight: 700;
  text-align: center;
  transition: all var(--transition-normal);
}

.btn-primary {
  background-color: var(--color-accent-warm);
  color: var(--color-white);
  box-shadow: var(--shadow-btn-orange);
}

.btn-primary:hover, .btn-primary:focus-visible {
  color: var(--color-white);
  transform: scale(1.03) translateY(-2px);
  box-shadow: 0 12px 28px rgba(255, 107, 53, 0.45);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-primary svg {
  animation: slight-vibration 3s infinite ease-in-out;
}

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

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

.btn-ghost {
  background-color: rgba(255,255,255,0.1);
  color: var(--color-white);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.2);
}

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

.btn-large {
  padding: var(--spacing-4) var(--spacing-6);
  font-size: 1.125rem;
  border-radius: var(--radius-md);
  white-space: nowrap;
}

@media (max-width: 480px) {
  .btn-large {
    font-size: 1rem;
    padding: var(--spacing-4) var(--spacing-4);
  }
}

/* ==========================================================================
   Componentes: Cards
   ========================================================================== */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--spacing-8);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border: 1px solid rgba(10, 37, 64, 0.05);
}

.card:hover {
  transform: translateY(-8px) scale(1.01);
  box-shadow: var(--shadow-md);
}

.card-icon {
  width: 48px;
  height: 48px;
  color: var(--color-primary);
  margin-bottom: var(--spacing-4);
  transition: color var(--transition-normal);
}

.card:hover .card-icon {
  color: var(--color-accent);
}

.card-highlight {
  background: var(--gradient-card);
  border: 2px solid var(--color-primary);
  position: relative;
}

.card-highlight::before {
  content: 'Más solicitado';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   Navbar
   ========================================================================== */
.top-bar {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  text-align: center;
  padding: var(--spacing-2);
  font-size: var(--text-sm);
  font-weight: 500;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  padding: var(--spacing-4) 0;
  transition: all var(--transition-normal);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--color-primary-dark);
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.logo-icon {
  color: var(--color-primary);
}

.nav-links {
  display: none;
  gap: var(--spacing-6);
  font-weight: 500;
}

.nav-links a {
  color: var(--color-neutral-dark);
}

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

.nav-cta {
  display: none;
}

@media (min-width: 1024px) {
  .nav-links { display: flex; }
  .nav-cta { display: flex; }
  .menu-toggle { display: none; }
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  background: var(--gradient-hero);
  color: var(--color-white);
  padding: var(--spacing-24) 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: radial-gradient(circle at 80% 20%, rgba(34, 211, 238, 0.15) 0%, transparent 50%);
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-12);
  align-items: center;
}

@media (min-width: 1024px) {
  .hero .container { grid-template-columns: 1.2fr 0.8fr; }
}

.hero-content h1 {
  color: var(--color-white);
  margin-bottom: var(--spacing-6);
}

.hero-content p {
  font-size: var(--text-lg);
  color: var(--color-neutral-light);
  margin-bottom: var(--spacing-8);
  max-width: 600px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-6);
}

.live-indicator {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--text-sm);
  color: var(--color-neutral-light);
  margin-bottom: var(--spacing-8);
}

.pulse-dot {
  width: 10px;
  height: 10px;
  flex-shrink: 0;
  background-color: #25D366;
  border-radius: 50%;
  position: relative;
  box-shadow: 0 0 4px rgba(37, 211, 102, 0.8);
}

.pulse-dot::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  border-radius: 50%;
  background-color: var(--color-success);
  opacity: 0.5;
  animation: pulse 2.5s infinite;
}

.trust-signals {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-6);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-neutral-light);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.hero-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   Animaciones Keyframes
   ========================================================================== */
@keyframes pulse {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(3.5); opacity: 0; }
}

@keyframes slight-vibration {
  0% { transform: rotate(0deg); }
  5% { transform: rotate(-10deg); }
  10% { transform: rotate(10deg); }
  15% { transform: rotate(-10deg); }
  20% { transform: rotate(0deg); }
  100% { transform: rotate(0deg); }
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Componentes Flotantes
   ========================================================================== */


.mobile-bottom-bar {
  display: flex;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  z-index: 100;
  background: white;
  box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
  padding-bottom: env(safe-area-inset-bottom);
}

.mobile-bottom-bar a {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-3);
  font-weight: 800;
  color: white;
  font-size: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.mobile-bottom-bar a i {
  width: 24px;
  height: 24px;
}

.mobile-bar-call { background-color: #25D366; }


@media (min-width: 768px) {
  .mobile-bottom-bar { display: none; }
}

/* ==========================================================================
   Específicos de Secciones
   ========================================================================== */

/* Cómo funciona */
.steps-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-8);
  position: relative;
}

@media (min-width: 768px) {
  .steps-container {
    grid-template-columns: repeat(3, 1fr);
  }
  .steps-container::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 10%;
    right: 10%;
    height: 2px;
    background-color: var(--color-neutral-light);
    z-index: -1;
  }
}

.step-card {
  text-align: center;
  position: relative;
  background: var(--color-white);
  padding: var(--spacing-4);
}

.step-number {
  font-size: 4.5rem;
  font-weight: 800;
  color: var(--color-primary);
  opacity: 0.15;
  line-height: 1;
  margin-bottom: var(--spacing-2);
  font-family: var(--font-heading);
}

/* FAQ Acordeón */
details {
  border-bottom: 1px solid rgba(10, 37, 64, 0.1);
  padding: var(--spacing-4) 0;
}

summary {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-primary-dark);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: '+';
  font-size: 1.5rem;
  transition: transform var(--transition-fast);
}

details[open] summary::after {
  transform: rotate(45deg);
}

.faq-content {
  padding-top: var(--spacing-4);
  color: var(--color-neutral-mid);
}

/* Footer */
.footer {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  padding: var(--spacing-16) 0 var(--spacing-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-12);
  margin-bottom: var(--spacing-12);
}

@media (min-width: 768px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr 1fr; }
}

.footer-col h4 {
  color: var(--color-white);
  margin-bottom: var(--spacing-6);
  font-size: 1.125rem;
}

.footer-links li {
  margin-bottom: var(--spacing-3);
}

.footer-links a {
  color: var(--color-neutral-light);
  opacity: 0.8;
}

.footer-links a:hover {
  opacity: 1;
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--spacing-8);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-4);
  font-size: var(--text-sm);
  color: var(--color-neutral-light);
  opacity: 0.8;
}