/* ===================================
   TerraSegura - Sistema de Diseño
   Colores inspirados en Mirador de Villarrica
   =================================== */

/* === Variables CSS === */
:root {
  /* Colores principales */
  --color-primary: #2b443a;
  --color-secondary: #f1efeb;
  --color-accent: #d4a140;
  --color-white: #ffffff;
  --color-black: #1a1a1a;
  
  /* Colores de texto */
  --text-dark: #1a1a1a;
  --text-light: #ffffff;
  --text-muted: #6b7280;
  
  /* Espaciado */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --spacing-xxl: 6rem;
  
  /* Tipografía */
  --font-primary: 'Inter', -apple-system, sans-serif;
  --font-headings: 'Poppins', sans-serif;
  
  /* Sombras */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
  
  /* Transiciones */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

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

body {
  font-family: var(--font-primary);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

/* === Utilidades === */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

.section-title {
  font-family: var(--font-headings);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  color: var(--color-primary);
  text-align: center;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
}

/* === Header & Navigation === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--color-primary);
  z-index: 1000;
  box-shadow: none;
  transition: var(--transition-normal);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-light);
  font-family: var(--font-headings);
  font-size: 1.5rem;
  font-weight: 700;
}

.logo-icon {
  object-fit: contain;
}

.logo-desktop {
  width: 150px;
  height: auto;
  display: block;
}

.logo-mobile {
  display: none;
}

@media (max-width: 768px) {
  .logo-desktop {
    display: none;
  }
  
  .logo-mobile {
    display: block;
    width: 80px;
    height: auto;
  }
}

.nav-menu {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-link {
  color: var(--text-light);
  font-weight: 500;
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background: var(--text-light);
  transition: var(--transition-fast);
}

/* === Botones === */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-weight: 600;
  border-radius: 50px;
  cursor: pointer;
  border: none;
  font-size: 1rem;
  transition: var(--transition-normal);
  text-align: center;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--text-dark);
}

.btn-primary:hover {
  background: #c18f2f;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: transparent;
  color: var(--text-light);
  border: 2px solid var(--color-accent);
}

.btn-secondary:hover {
  background: var(--color-accent);
  color: var(--text-dark);
}

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

.btn-white:hover {
  background: var(--color-secondary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* === Hero Section === */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  margin-top: 0;
  overflow: hidden;
}

.hero-slider {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(43, 68, 58, 0.7) 0%, rgba(43, 68, 58, 0.3) 100%);
  z-index: 1;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  text-align: center;
  color: var(--text-light);
  width: 90%;
  max-width: 900px;
}

.hero-title {
  font-family: var(--font-headings);
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  font-weight: 600;
  color: var(--color-accent);
  text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.3);
}

.hero-description {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-lg);
  opacity: 0.95;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

.hero-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  gap: 12px;
}

.hero-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: var(--transition-fast);
  border: none;
  padding: 0;
}

.hero-dot.active {
  background: var(--color-accent);
  width: 30px;
  border-radius: 6px;
}

/* === Sección ¿Qué te ofrecemos? === */
.what-we-offer {
  background: var(--color-secondary);
}

.offer-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.offer-text {
  font-size: 1.125rem;
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
  color: var(--text-dark);
}

.offer-text strong {
  color: var(--color-primary);
  font-weight: 700;
}

/* === Proyectos Destacados === */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.project-card {
  background: var(--color-white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.project-image-wrapper {
  position: relative;
  height: 250px;
  overflow: hidden;
}

.project-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background: var(--color-accent);
  color: var(--text-dark);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.875rem;
  z-index: 2;
}

.project-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.project-card:hover .project-image {
  transform: scale(1.1);
}

.project-info {
  padding: var(--spacing-md);
}

.project-title {
  font-family: var(--font-headings);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
  color: var(--color-primary);
}

.project-description {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: var(--spacing-md);
  line-height: 1.5;
}

.project-location {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  margin-bottom: var(--spacing-md);
  font-size: 0.95rem;
}

.project-location svg {
  width: 16px;
  height: 16px;
  fill: var(--color-accent);
}

/* === ¿Qué nos diferencia? === */
.differentiators {
  background: var(--color-secondary);
}

.differentiators-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.differentiator-card {
  background: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: 12px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
}

.differentiator-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.differentiator-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--spacing-md);
  fill: var(--color-primary);
}

.differentiator-title {
  font-family: var(--font-headings);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.differentiator-text {
  color: var(--text-dark);
  line-height: 1.7;
}

.differentiator-text strong {
  color: var(--color-primary);
  font-weight: 600;
}

/* === Formulario de Contacto === */
.contact-form-section {
  background: var(--color-primary);
  color: var(--text-light);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--spacing-xl);
  align-items: start;
}

.contact-info h2 {
  font-family: var(--font-headings);
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--text-light);
}

.contact-info p {
  font-size: 1.125rem;
  opacity: 0.9;
  margin-bottom: var(--spacing-lg);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.form-group {
  grid-column: span 2;
}

.form-group.half {
  grid-column: span 1;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-input {
  width: 100%;
  padding: 0.875rem 1.25rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-family: var(--font-primary);
  background: var(--color-white);
  transition: var(--transition-fast);
}

.form-input:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* === Testimonios === */
.testimonials {
  background: var(--color-white);
}

.testimonials-slider {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  overflow: hidden;
}

.testimonial-item {
  text-align: center;
  padding: var(--spacing-lg);
}

.testimonial-video {
  width: 100%;
  max-width: 600px;
  height: 400px;
  margin: 0 auto var(--spacing-md);
  border-radius: 12px;
  background: var(--color-secondary);
}

.testimonial-author {
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--color-primary);
}

/* === Footer === */
.footer {
  background: var(--color-primary);
  color: var(--text-light);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
  font-family: var(--font-headings);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-accent);
}

.footer-logo {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--text-light);
}

.footer-description {
  opacity: 0.9;
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.footer-link {
  display: block;
  padding: 0.5rem 0;
  opacity: 0.9;
  transition: var(--transition-fast);
}

.footer-link:hover {
  opacity: 1;
  color: var(--color-accent);
  padding-left: 5px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--spacing-sm);
}

.contact-icon {
  width: 20px;
  height: 20px;
  fill: var(--color-accent);
}

.social-links {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

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

.social-link:hover {
  background: var(--color-accent);
  transform: translateY(-3px);
}

.social-icon {
  width: 20px;
  height: 20px;
  fill: var(--text-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  text-align: center;
  opacity: 0.8;
}

/* === WhatsApp Button === */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  z-index: 999;
  transition: var(--transition-normal);
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 15px 30px rgba(37, 211, 102, 0.4);
}

.whatsapp-icon {
  width: 35px;
  height: 35px;
  fill: white;
}

/* === Responsive Design === */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: var(--color-primary);
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--spacing-lg);
    transition: var(--transition-normal);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.25rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .contact-wrapper {
    grid-template-columns: 1fr;
  }
  
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .form-group.half {
    grid-column: span 1;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .logo {
    font-size: 1.25rem;
  }
  
  .section {
    padding: var(--spacing-lg) 0;
  }
}