/* ===== VARIABLES ===== */
:root {
  --azul-oscuro: #0b2a4f;
  --azul-brillante: #2a7de1;
  --gris-claro: #f5f7fa;
  --gris-medio: #eef2f6;
  --blanco: #ffffff;
  --texto-oscuro: #1e2b3c;
  --texto-gris: #4a5a6e;
  --sombra-suave: 0 20px 35px -10px rgba(11, 42, 79, 0.1);
  --sombra-fuerte: 0 25px 40px -12px rgba(11, 42, 79, 0.25);
  --border-radius: 20px;
  --transition: all 0.3s ease;
}

/* ===== RESET & BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: 'Inter', sans-serif;
  color: var(--texto-oscuro);
  line-height: 1.6;
  background-color: var(--blanco);
  overflow-x: hidden;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== TIPOGRAFÍA ===== */
h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 1rem;
  color: var(--azul-oscuro);
}

h3 {
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem;
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--texto-gris);
}

.accent-text {
  color: var(--azul-brillante);
  border-bottom: 3px solid var(--azul-brillante);
  padding-bottom: 4px;
}

/* ===== HEADER MEJORADO ===== */
.site-header {
  background-color: var(--gris-claro);
  border-bottom: 1px solid rgba(11, 42, 79, 0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo-wrapper {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 60px;
  width: auto;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.05));
}

/* Navegación escritorio */
.desktop-nav ul {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

.desktop-nav a {
  text-decoration: none;
  color: var(--texto-oscuro);
  font-weight: 500;
  font-size: 1rem;
  transition: color 0.2s;
  position: relative;
}

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

.desktop-nav a:hover {
  color: var(--azul-brillante);
}

.desktop-nav a:hover::after {
  width: 100%;
}

/* Botones */
.btn-primary {
  background: var(--azul-oscuro);
  color: var(--blanco);
  border: none;
  padding: 0.8rem 1.8rem;
  border-radius: 40px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: var(--transition);
  box-shadow: 0 8px 16px -6px rgba(11, 42, 79, 0.2);
}

.btn-primary:hover {
  background: #1f4b7a;
  transform: translateY(-2px);
  box-shadow: 0 12px 20px -8px rgba(11, 42, 79, 0.3);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--azul-oscuro);
  color: var(--azul-oscuro);
  padding: 0.75rem 1.8rem;
  border-radius: 40px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}

.btn-outline:hover {
  background: var(--azul-oscuro);
  color: var(--blanco);
}

.btn-large {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
}

/* Hamburguesa */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 10px;
}

.hamburger span {
  width: 28px;
  height: 2px;
  background: var(--azul-oscuro);
  transition: var(--transition);
}

.mobile-menu {
  display: none;
  background: var(--blanco);
  padding: 1.5rem;
  border-top: 1px solid var(--gris-medio);
  box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

.mobile-menu.active {
  display: block;
}

.mobile-menu ul {
  list-style: none;
}

.mobile-menu li {
  margin-bottom: 1.2rem;
}

.mobile-menu a {
  text-decoration: none;
  color: var(--texto-oscuro);
  font-weight: 500;
  font-size: 1.2rem;
  display: block;
  padding: 0.5rem 0;
}

/* ===== HERO SECTION ===== */
.hero {
  padding: 4rem 0 5rem;
  background: linear-gradient(135deg, var(--gris-claro) 0%, var(--blanco) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  max-width: 650px;
}

.hero h1 {
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--texto-gris);
  margin-bottom: 2rem;
}

.hero-benefits {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.benefit-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  color: var(--azul-oscuro);
}

.benefit-tag i {
  color: var(--azul-brillante);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero-visual {
  position: relative;
  height: 400px;
}

.graphic-element {
  width: 100%;
  height: 100%;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 500 500" fill="none"><path d="M200,80 L400,180 L400,340 L200,400 L40,300 L40,160 L200,80Z" fill="%232a7de1" opacity="0.08"/><circle cx="350" cy="150" r="50" fill="%230b2a4f" opacity="0.05"/><circle cx="120" cy="300" r="80" fill="%232a7de1" opacity="0.04"/></svg>') no-repeat center;
  background-size: contain;
}

/* ===== TRUST BANDS ===== */
.trust-brands {
  padding: 2rem 0;
  background: var(--blanco);
  border-bottom: 1px solid var(--gris-medio);
}

.trust-title {
  text-align: center;
  color: var(--texto-gris);
  font-size: 0.9rem;
  letter-spacing: 2px;
  margin-bottom: 1.5rem;
}

.brands-grid {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 2rem;
}

.brand-placeholder {
  font-weight: 600;
  color: var(--texto-oscuro);
  opacity: 0.7;
  font-size: 1rem;
}

/* ===== SERVICIOS ===== */
.services-section {
  padding: 5rem 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.service-card {
  background: var(--blanco);
  padding: 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--sombra-suave);
  border: 1px solid rgba(0,0,0,0.02);
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--sombra-fuerte);
}

.service-icon {
  width: 60px;
  height: 60px;
  background: rgba(42, 125, 225, 0.1);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.service-icon i {
  font-size: 2rem;
  color: var(--azul-brillante);
}

.service-desc {
  color: var(--texto-gris);
  margin: 1rem 0;
  font-size: 0.95rem;
}

.service-benefit {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--azul-oscuro);
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--gris-medio);
}

.highlight-card {
  border: 2px solid var(--azul-brillante);
  background: linear-gradient(145deg, var(--blanco), #f0f8ff);
}

/* ===== VALOR DIFERENCIAL ===== */
.value-section {
  padding: 5rem 0;
  background: var(--gris-claro);
}

.value-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 4rem;
  align-items: center;
}

.value-item {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.value-icon {
  min-width: 50px;
  height: 50px;
  background: var(--azul-brillante);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.3rem;
}

.value-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.stat-card {
  background: var(--blanco);
  padding: 2rem 1.5rem;
  border-radius: var(--border-radius);
  text-align: center;
  box-shadow: var(--sombra-suave);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--azul-brillante);
  margin-bottom: 0.5rem;
}

/* ===== PROCESO ===== */
.process-section {
  padding: 5rem 0;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.step-item {
  text-align: center;
  padding: 2rem;
}

.step-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--azul-brillante);
  opacity: 0.3;
  margin-bottom: 1rem;
}

/* ===== ABOUT ===== */
.about-section {
  padding: 5rem 0;
  background: var(--blanco);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-features {
  display: flex;
  gap: 2rem;
  margin: 2rem 0;
}

.about-features div {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}

.about-features i {
  color: var(--azul-brillante);
}

.testimonials-grid {
  display: grid;
  gap: 1.5rem;
}

.testimonial-card {
  background: var(--gris-claro);
  padding: 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--sombra-suave);
}

.testimonial-card i {
  color: var(--azul-brillante);
  font-size: 2rem;
  opacity: 0.5;
  margin-bottom: 1rem;
}

.testimonial-author {
  margin-top: 1rem;
  font-weight: 600;
  color: var(--azul-oscuro);
}

/* ===== CONTACTO ===== */
.contact-section {
  padding: 5rem 0;
  background: var(--gris-claro);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  background: var(--blanco);
  border-radius: 40px;
  padding: 3rem;
  box-shadow: var(--sombra-suave);
}

.contact-info h2 {
  margin-bottom: 1.5rem;
}

.contact-details {
  margin: 2rem 0;
}

.contact-details div {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.contact-details i {
  width: 24px;
  color: var(--azul-brillante);
}

.social-links {
  display: flex;
  gap: 1.5rem;
}

.social-links a {
  color: var(--azul-oscuro);
  font-size: 1.3rem;
  transition: color 0.2s;
}

.social-links a:hover {
  color: var(--azul-brillante);
}

/* Formulario */
.contact-form {
  background: var(--gris-claro);
  padding: 2rem;
  border-radius: 30px;
}

.form-group {
  margin-bottom: 1.2rem;
  position: relative;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem 1.2rem;
  border: 2px solid transparent;
  border-radius: 16px;
  background: var(--blanco);
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--azul-brillante);
  box-shadow: 0 0 0 4px rgba(42, 125, 225, 0.1);
}

.form-group.error input,
.form-group.error textarea {
  border-color: #dc3545;
}

.error-message {
  color: #dc3545;
  font-size: 0.85rem;
  margin-top: 0.3rem;
  display: block;
}

.form-status {
  margin-top: 1.5rem;
  padding: 1rem;
  border-radius: 12px;
  text-align: center;
  font-weight: 500;
}

.form-status.success {
  background: rgba(40, 167, 69, 0.1);
  color: #28a745;
}

.form-status.error {
  background: rgba(220, 53, 69, 0.1);
  color: #dc3545;
}

.btn-submit {
  width: 100%;
  margin-top: 0.5rem;
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--azul-oscuro);
  color: var(--blanco);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo {
  height: 50px;
  filter: brightness(0) invert(1);
  margin-bottom: 1rem;
}

.footer-contact ul,
.footer-links ul {
  list-style: none;
}

.footer-contact li,
.footer-links li {
  margin-bottom: 0.8rem;
}

.footer-contact i {
  margin-right: 10px;
  color: var(--azul-brillante);
}

.footer-links a {
  color: var(--blanco);
  text-decoration: none;
  opacity: 0.8;
  transition: opacity 0.2s;
}

.footer-links a:hover {
  opacity: 1;
}

.social-icons {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-icons a {
  color: var(--blanco);
  font-size: 1.3rem;
  opacity: 0.8;
  transition: opacity 0.2s;
}

.social-icons a:hover {
  opacity: 1;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.9rem;
  opacity: 0.7;
}

/* ===== ANIMACIONES ===== */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s ease forwards;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-benefits {
    justify-content: center;
  }
  
  .hero-ctas {
    justify-content: center;
  }
  
  .value-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .desktop-nav,
  .desktop-cta {
    display: none;
  }
  
  .hamburger {
    display: flex;
  }
  
  .process-steps {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .contact-grid {
    padding: 1.5rem;
  }
  
  .brands-grid {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }
}