/* ===== VARIABLES CSS ===== */
:root {
  /* Colores principales */
  --verde-militar: #4B5320;
  --verde-oliva: #6B8E23;
  --verde-seco: #556B2F;
  --verde-suave: #8F9779;
  --violeta: #8A2BE2;
  --violeta-claro: #9370DB;
  --violeta-suave: #E6E6FA;
  
  /* Colores neutros */
  --texto: #2D3748;
  --texto-claro: #718096;
  --gris-claro: #F7FAFC;
  --gris-medio: #E2E8F0;
  --gris-oscuro: #4A5568;
  --blanco: #FFFFFF;
  
  /* Sombras */
  --sombra-suave: 0 2px 15px rgba(0, 0, 0, 0.08);
  --sombra-media: 0 5px 20px rgba(0, 0, 0, 0.12);
  --sombra-intensa: 0 10px 30px rgba(0, 0, 0, 0.15);
  
  /* Transiciones */
  --transicion-rapida: all 0.3s ease;
  --transicion-media: all 0.5s ease;
  --transicion-lenta: all 0.8s ease;
  
  /* Bordes */
  --radio-borde: 12px;
  --radio-borde-sm: 8px;
  --radio-borde-lg: 20px;
}

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

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

body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  line-height: 1.7;
  color: var(--texto);
  background-color: var(--blanco);
  overflow-x: hidden;
}

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

/* ===== TIPOGRAFÍA ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--verde-militar);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--verde-militar), var(--violeta));
  border-radius: 2px;
}

/* ===== BOTONES ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 12px 28px;
  border: 2px solid transparent;
  border-radius: var(--radio-borde);
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: var(--transicion-rapida);
  position: relative;
  overflow: hidden;
  font-size: 1rem;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--verde-militar), var(--verde-oliva));
  color: var(--blanco);
  box-shadow: var(--sombra-suave);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--sombra-media);
}

.btn-outline {
  background: transparent;
  color: var(--verde-militar);
  border-color: var(--verde-militar);
}

.btn-outline:hover {
  background: var(--verde-militar);
  color: var(--blanco);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 20px;
  font-size: 0.9rem;
}

.btn-full {
  width: 100%;
}

/* ===== HEADER ===== */
header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: var(--sombra-suave);
  transition: var(--transicion-rapida);
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 20px;
}

.logo img {
  height: 50px;
  transition: var(--transicion-rapida);
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

nav a {
  text-decoration: none;
  color: var(--texto);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--radio-borde-sm);
  transition: var(--transicion-rapida);
  position: relative;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--verde-militar);
  transition: var(--transicion-rapida);
}

nav a:hover {
  color: var(--verde-militar);
}

nav a:hover::after {
  width: 80%;
}

/* ===== HERO SECTION ===== */
.hero {
  background: linear-gradient(135deg, rgba(75, 83, 32, 0.9), rgba(106, 142, 35, 0.8)),
              url('../images/background.jpg') center/cover;
  color: var(--blanco);
  padding: 180px 0 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.1' fill-rule='evenodd'/%3E%3C/svg%3E");
  animation: float 20s infinite linear;
}

@keyframes float {
  0% { transform: translate(0, 0) rotate(0deg); }
  100% { transform: translate(-50px, -50px) rotate(360deg); }
}

.hero-content h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  color: var(--blanco);
  animation: fadeInUp 1s ease;
}

.hero-subtitle {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  animation: fadeInUp 1s ease 0.2s both;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease 0.4s both;
}

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

/* ===== SECCIONES ===== */
.section-padding {
  padding: 100px 0;
}

.page-hero {
  background: linear-gradient(135deg, var(--verde-militar), var(--verde-oliva));
  color: var(--blanco);
  padding: 140px 0 60px;
  text-align: center;
}

.page-hero h1 {
  color: var(--blanco);
  margin-bottom: 1rem;
}

/* ===== GRIDS Y CARDS ===== */
.features-grid,
.services-grid,
.testimonials-grid,
.products-grid,
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card,
.service-preview-card,
.testimonial-card,
.product-card,
.blog-card {
  background: var(--blanco);
  padding: 2rem;
  border-radius: var(--radio-borde);
  box-shadow: var(--sombra-suave);
  transition: var(--transicion-rapida);
  position: relative;
  overflow: hidden;
}

.feature-card::before,
.service-preview-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--verde-militar), var(--violeta));
}

.feature-card:hover,
.service-preview-card:hover,
.testimonial-card:hover,
.product-card:hover,
.blog-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--sombra-media);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

/* ===== FORMULARIOS ===== */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--verde-militar);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--gris-medio);
  border-radius: var(--radio-borde-sm);
  font-size: 1rem;
  transition: var(--transicion-rapida);
  background: var(--blanco);
}

.form-control:focus {
  outline: none;
  border-color: var(--violeta);
  box-shadow: 0 0 0 3px rgba(138, 43, 226, 0.1);
}

/* ===== ALERTAS ===== */
.alert {
  padding: 1rem 1.5rem;
  border-radius: var(--radio-borde-sm);
  margin-bottom: 1.5rem;
  border-left: 4px solid;
  animation: slideInRight 0.5s ease;
}

.alert-success {
  background: #f0fff4;
  color: #2d5a2d;
  border-left-color: #48bb78;
}

.alert-error {
  background: #fff5f5;
  color: #c53030;
  border-left-color: #f56565;
}

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

/* ===== CTA SECTIONS ===== */
.cta-section {
  background: linear-gradient(135deg, var(--verde-militar), var(--verde-oliva));
  color: var(--blanco);
  padding: 80px 0;
  text-align: center;
}

.cta-section h2 {
  color: var(--blanco);
}

.cta-content {
  max-width: 600px;
  margin: 0 auto;
}

/* ===== FOOTER ===== */
footer {
  background: #336e05c7;
  color: var(--blanco);
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-section h3 {
  color: var(--blanco);
  margin-bottom: 1.5rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: var(--gris-medio);
  text-decoration: none;
  transition: var(--transicion-rapida);
}

.footer-section a:hover {
  color: var(--blanco);
}

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

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transition: var(--transicion-rapida);
}

.social-link:hover {
  background: var(--violeta);
  transform: translateY(-2px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  text-align: center;
  color: var(--gris-medio);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
  
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  h3 { font-size: 1.5rem; }
  
  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  nav ul {
    flex-direction: column;
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: var(--blanco);
    box-shadow: var(--sombra-media);
    padding: 2rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transicion-rapida);
  }
  
  nav ul.show {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .menu-toggle {
    display: block;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--verde-militar);
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .features-grid,
  .services-grid,
  .testimonials-grid,
  .products-grid,
  .blog-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }
  
  .section-padding {
    padding: 60px 0;
  }
  
  .feature-card,
  .service-preview-card,
  .testimonial-card,
  .product-card,
  .blog-card {
    padding: 1.5rem;
  }
}

/* ===== ANIMACIONES ADICIONALES ===== */
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.pulse {
  animation: pulse 2s infinite;
}

@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    transform: translate3d(0,0,0);
  }
  40%, 43% {
    transform: translate3d(0,-8px,0);
  }
  70% {
    transform: translate3d(0,-4px,0);
  }
  90% {
    transform: translate3d(0,-2px,0);
  }
}

.bounce {
  animation: bounce 1s ease infinite;
}

/* ===== UTILIDADES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.hidden { display: none; }
.flex { display: flex; }
.grid { display: grid; }

/* ===== LOADING STATES ===== */
.loading {
  opacity: 0.6;
  pointer-events: none;
  position: relative;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top: 2px solid var(--verde-militar);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: translate(-50%, -50%) rotate(0deg); }
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}