/* ===================================
   Variables CSS - Paleta Clara
   =================================== */
:root {
  /* Fondos claros */
  --bg-main: #F5F9FC;           /* Fondo principal (blanco con tinte azul) */
  --bg-card: #FFFFFF;           /* Tarjetas */
  --bg-card-hover: #F0F7FB;     /* Hover tarjetas */

  /* Colores principales */
  --primary: #4682B4;           /* Azul Steel Blue */
  --primary-light: #87CEEB;     /* Azul cielo */
  --accent: #00d6ab;            /* Verde mocoretá */

  /* Texto */
  --text-dark: #333333;         /* Principal */
  --text-medium: #555555;       /* Secundario */
  --text-light: #777777;        /* Terciario */

  /* Bordes y sombras */
  --border-light: #E0E7ED;
  --shadow-sm: 0 2px 8px rgba(70, 130, 180, 0.08);
  --shadow-md: 0 4px 16px rgba(70, 130, 180, 0.12);
  --shadow-lg: 0 8px 24px rgba(70, 130, 180, 0.16);

  /* Transiciones */
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Montserrat', sans-serif;
  background: var(--bg-main);
  color: var(--text-dark);
  line-height: 1.6;
  font-size: 16px;
}

.container {
  max-width: 1200px;
  padding: 0 20px;
  margin: 0 auto;
}

/* ===================================
   Header - Navegación Fija
   =================================== */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  height: 70px;
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo-img {
  max-height: 50px;
  object-fit: contain;
  transition: transform var(--transition);
}

.logo-img:hover {
  transform: scale(1.05);
}

.nav {
  display: flex;
  align-items: center;
}

.nav-list {
  list-style: none;
  display: flex;
  gap: 35px;
}

.nav-list li a {
  color: var(--text-dark);
  text-decoration: none;
  font-weight: 500;
  font-size: 17px;
  transition: color var(--transition);
  position: relative;
}

.nav-list li a::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 2px;
  bottom: -5px;
  left: 0;
  background-color: var(--accent);
  transform: scaleX(0);
  transform-origin: bottom right;
  transition: transform var(--transition);
}

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

.nav-list li a:hover::after {
  transform: scaleX(1);
  transform-origin: bottom left;
}

/* Hamburguesa móvil */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1002;
  transition: transform var(--transition);
}

.hamburger:hover {
  transform: scale(1.1);
}

.hamburger span {
  width: 25px;
  height: 3px;
  background-color: var(--text-dark);
  transition: all var(--transition);
  border-radius: 2px;
}

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

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

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* ===================================
   Hero Section - Gradiente Animado
   =================================== */
.hero {
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, #4682B4, #87CEEB, #00d6ab);
  background-size: 200% 200%;
  animation: gradientMove 15s ease infinite;
  padding: 100px 20px 40px;
}

@keyframes gradientMove {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

.hero-content {
  max-width: 800px;
  color: white;
}

.hero-logo {
  max-height: 180px;
  margin-bottom: 30px;
  animation: fadeIn 1s ease;
  filter: drop-shadow(0 0 3px rgba(255, 255, 255, 0.9))
          drop-shadow(0 0 8px rgba(255, 255, 255, 0.6))
          drop-shadow(0 2px 4px rgba(0, 0, 0, 0.15));
}

.hero h1 {
  font-size: 42px;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
  animation: fadeIn 1s ease 0.2s backwards;
}

.hero p {
  font-size: 20px;
  margin-bottom: 30px;
  opacity: 0.95;
  animation: fadeIn 1s ease 0.4s backwards;
}

.cta-button {
  display: inline-block;
  background: white;
  color: var(--primary);
  padding: 14px 32px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 17px;
  transition: all var(--transition);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  animation: fadeIn 1s ease 0.6s backwards;
}

.cta-button:hover {
  background: var(--accent);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

/* ===================================
   Servicios Section
   =================================== */
.services {
  padding: 80px 0;
  background: var(--bg-main);
}

.services h2 {
  font-size: 38px;
  font-weight: 700;
  color: var(--primary);
  text-align: center;
  margin-bottom: 15px;
}

.services .subtitle {
  font-size: 18px;
  color: var(--text-medium);
  text-align: center;
  margin-bottom: 50px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.service-card {
  background: var(--bg-card);
  padding: 35px;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition), border-bottom var(--transition);
  border-bottom: 3px solid transparent;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-bottom-color: var(--accent);
  background: var(--bg-card-hover);
}

.service-icon {
  font-size: 48px;
  color: var(--primary);
  margin-bottom: 20px;
  transition: color var(--transition), transform var(--transition);
}

.service-card:hover .service-icon {
  color: var(--accent);
  transform: scale(1.1);
}

.service-card h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 15px;
}

.service-card p {
  font-size: 15px;
  color: var(--text-medium);
  line-height: 1.6;
  margin-bottom: 20px;
}

.cta-button-small {
  display: inline-block;
  background: var(--primary);
  color: white;
  padding: 10px 24px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
  transition: all var(--transition);
}

.cta-button-small:hover {
  background: var(--accent);
  transform: translateY(-2px);
}

/* ===================================
   Contacto Section
   =================================== */
.contact {
  padding: 80px 0;
  background: linear-gradient(to bottom, var(--bg-main), #E8EFF5);
}

.contact h2 {
  font-size: 38px;
  font-weight: 700;
  color: var(--primary);
  text-align: center;
  margin-bottom: 15px;
}

.contact .subtitle {
  font-size: 18px;
  color: var(--text-medium);
  text-align: center;
  margin-bottom: 50px;
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  max-width: 1000px;
  margin: 0 auto;
}

/* Formulario */
.contact-form-container {
  background: var(--bg-card);
  padding: 40px;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
}

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

.contact-form label {
  display: block;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 8px;
  font-size: 15px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  font-family: 'Montserrat', sans-serif;
  font-size: 15px;
  color: var(--text-dark);
  background: var(--bg-main);
  transition: border-color var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--primary);
}

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

.contact-form button {
  width: 100%;
  background: var(--primary);
  color: white;
  padding: 14px;
  border: none;
  border-radius: 6px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 17px;
  cursor: pointer;
  transition: all var(--transition);
}

.contact-form button:hover {
  background: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.form-message {
  margin-top: 20px;
  padding: 12px;
  border-radius: 6px;
  text-align: center;
  font-weight: 500;
  display: none;
}

.form-message.success {
  display: block;
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.form-message.error {
  display: block;
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

/* Información de contacto */
.contact-info {
  background: var(--bg-card);
  padding: 40px;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
}

.contact-info h3 {
  font-size: 24px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 25px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  margin-bottom: 25px;
}

.contact-item i {
  font-size: 24px;
  color: var(--primary);
  margin-top: 5px;
}

.contact-item div {
  flex: 1;
}

.contact-item strong {
  display: block;
  color: var(--text-dark);
  margin-bottom: 5px;
  font-size: 15px;
}

.contact-item a {
  color: var(--text-medium);
  text-decoration: none;
  transition: color var(--transition);
}

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

.contact-item p {
  color: var(--text-medium);
  font-size: 15px;
  line-height: 1.5;
}

.social-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary);
  margin-top: 30px;
  margin-bottom: 20px;
}

.social-links {
  display: flex;
  gap: 15px;
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: var(--bg-main);
  border-radius: 50%;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.social-icon:hover {
  background: var(--primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.social-icon img {
  width: 28px;
  height: 28px;
  object-fit: contain;
  transition: filter var(--transition);
}

.social-icon:hover img {
  filter: brightness(0) invert(1);
}

/* ===================================
   Footer
   =================================== */
.footer {
  background: linear-gradient(to bottom, #E8EFF5, #D8E7F0);
  padding: 40px 0 30px;
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.footer-logo img {
  max-height: 50px;
  opacity: 0.9;
}

.footer-nav {
  display: flex;
  align-items: center;
  gap: 15px;
}

.footer-nav a {
  color: var(--text-dark);
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
  transition: color var(--transition);
}

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

.footer-nav span {
  color: var(--text-light);
}

.payment-methods {
  margin-top: 10px;
}

.payment-methods p {
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 12px;
  font-size: 15px;
}

.payment-icons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 15px;
  flex-wrap: wrap;
}

.payment-icons img {
  height: 32px;
  object-fit: contain;
  opacity: 0.85;
  transition: opacity var(--transition), transform var(--transition);
  cursor: help;
}

.payment-icons img:hover {
  opacity: 1;
  transform: scale(1.1);
}

.copyright {
  font-size: 14px;
  color: var(--text-medium);
  margin-top: 20px;
}

/* ===================================
   WhatsApp Floating Button
   =================================== */
.whatsapp-float {
  position: fixed;
  bottom: 25px;
  right: 25px;
  background: #25D366;
  color: white;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  transition: all var(--transition);
  z-index: 999;
  animation: bounce 2s infinite;
}

.whatsapp-float:hover {
  background: #20BA5A;
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(37, 211, 102, 0.5);
  animation: none;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-8px);
  }
  60% {
    transform: translateY(-4px);
  }
}

/* ===================================
   Animaciones Fade-in
   =================================== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

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

/* ===================================
   Responsive - Mobile
   =================================== */
@media (max-width: 768px) {
  /* Header móvil */
  .hamburger {
    display: flex;
  }

  .nav-list {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: var(--bg-card);
    flex-direction: column;
    gap: 0;
    padding: 20px 0;
    box-shadow: var(--shadow-md);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
  }

  .nav-list.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-list li {
    width: 100%;
    text-align: center;
  }

  .nav-list li a {
    display: block;
    padding: 15px 20px;
    font-size: 18px;
  }

  /* Hero */
  .hero {
    padding: 120px 20px 40px;
  }

  .hero-logo {
    max-height: 140px;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero p {
    font-size: 18px;
  }

  /* Servicios */
  .services h2 {
    font-size: 32px;
  }

  .services-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  /* Contacto */
  .contact h2 {
    font-size: 32px;
  }

  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .contact-form-container,
  .contact-info {
    padding: 30px 25px;
  }

  /* WhatsApp button móvil */
  .whatsapp-float {
    bottom: 20px;
    left: 20px;
    right: auto;
    width: 55px;
    height: 55px;
    font-size: 28px;
  }

  /* Footer */
  .payment-icons {
    gap: 10px;
  }

  .payment-icons img {
    height: 28px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 28px;
  }

  .hero p {
    font-size: 16px;
  }

  .services h2,
  .contact h2 {
    font-size: 28px;
  }

  .cta-button {
    padding: 12px 24px;
    font-size: 16px;
  }
}