@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@300;400;500;600;700&display=swap');

/* ==========================================================================
   Variables y Sistema de Diseño (Design Tokens)
   ========================================================================== */
:root {
  /* Paleta de Colores (Basada en el Logo Teal/Verde) */
  --primary-hue: 169;
  --primary: hsl(var(--primary-hue), 100%, 23%);          /* Teal Oscuro Principal */
  --primary-light: hsl(var(--primary-hue), 100%, 30%);    /* Teal Claro */
  --primary-ultra-light: hsl(var(--primary-hue), 40%, 94%); /* Fondo Sutil */
  
  --secondary-hue: 158;
  --secondary: hsl(var(--secondary-hue), 100%, 30%);      /* Verde Secundario */
  --secondary-light: hsl(var(--secondary-hue), 100%, 38%);
  
  --accent-hue: 168;
  --accent: hsl(var(--accent-hue), 100%, 40%);            /* Menta Vibrante para CTAs */
  --accent-hover: hsl(var(--accent-hue), 100%, 34%);
  --accent-light: hsl(var(--accent-hue), 100%, 93%);
  
  /* Tonos Neutros */
  --text-dark: hsl(200, 20%, 12%);                        /* Texto Principal */
  --text-muted: hsl(200, 10%, 40%);                       /* Texto Secundario/Gris */
  --bg-light: hsl(180, 20%, 98%);                         /* Fondo General Claro */
  --bg-white: hsl(0, 0%, 100%);
  --bg-dark: hsl(170, 30%, 10%);                          /* Fondo Oscuro Corporativo */
  --border-color: hsl(180, 10%, 90%);
  
  /* Tipografía */
  --font-headings: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Sombras y Efectos */
  --shadow-sm: 0 2px 4px rgba(0, 82, 69, 0.05);
  --shadow-md: 0 10px 25px rgba(0, 82, 69, 0.08);
  --shadow-lg: 0 20px 40px rgba(0, 82, 69, 0.12);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px; /* Base 16px para accesibilidad */
  -webkit-text-size-adjust: 100%;
}

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

/* Encabezados */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headings);
  font-weight: 600;
  line-height: 1.25;
  color: var(--primary);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 700; }
h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); margin-bottom: 1rem; position: relative; }
h3 { font-size: clamp(1.3rem, 3vw, 1.8rem); }
h4 { font-size: 1.15rem; }

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

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

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
}

/* ==========================================================================
   Componentes Comunes (Layout)
   ========================================================================== */
.container {
  width: 90%;
  max-width: var(--container-width);
  margin: 0 auto;
}

.section {
  padding: clamp(4rem, 8vw, 7rem) 0;
}

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

.section-dark h2, .section-dark h3 {
  color: var(--bg-white);
}

.text-center { text-align: center; }
.section-header {
  max-width: 650px;
  margin: 0 auto clamp(3rem, 6vw, 4.5rem) auto;
}
.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-top: 0.5rem;
}
.section-dark .section-header p {
  color: hsl(170, 10%, 75%);
}

/* ==========================================================================
   Botones Premium
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.85rem 1.8rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-headings);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.95rem;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--bg-white);
  box-shadow: 0 4px 15px rgba(0, 130, 105, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 130, 105, 0.35);
  background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
}

.btn-accent {
  background-color: var(--accent);
  color: var(--bg-white);
  box-shadow: 0 4px 15px rgba(0, 199, 159, 0.25);
}

.btn-accent:hover {
  transform: translateY(-2px);
  background-color: var(--accent-hover);
  box-shadow: 0 8px 20px rgba(0, 199, 159, 0.35);
}

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

.btn-outline:hover {
  background-color: var(--primary);
  color: var(--bg-white);
  transform: translateY(-2px);
}

.btn-outline-white {
  border: 2px solid var(--bg-white);
  background-color: transparent;
  color: var(--bg-white);
}

.btn-outline-white:hover {
  background-color: var(--bg-white);
  color: var(--primary);
  transform: translateY(-2px);
}

/* ==========================================================================
   Header & Navegación (Sticky Responsive)
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 0;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-img {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.logo-text {
  font-family: var(--font-headings);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary);
  letter-spacing: -0.5px;
  line-height: 1.1;
}

.logo-text span {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--secondary);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* Menú de Escritorio */
.nav {
  display: none;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 1.8rem;
}

.nav-link {
  font-family: var(--font-headings);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-dark);
  position: relative;
  padding: 0.5rem 0;
}

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

.nav-link:hover {
  color: var(--secondary);
}

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

.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}

/* Botón Hamburguesa */
.burger-btn {
  background: transparent;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 18px;
  z-index: 1001;
}

.burger-btn span {
  display: block;
  width: 100%;
  height: 2.5px;
  background-color: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* Menú Móvil Overlay */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 320px;
  height: 100vh;
  background-color: var(--bg-white);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
  z-index: 999;
  display: flex;
  flex-direction: column;
  padding: 6rem 2rem 2rem 2rem;
  transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu.open {
  right: 0;
}

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

.mobile-nav-link {
  font-family: var(--font-headings);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-dark);
  display: block;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--primary);
  padding-left: 10px;
  border-left: 3px solid var(--secondary);
}

.burger-btn.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.burger-btn.open span:nth-child(2) {
  opacity: 0;
}
.burger-btn.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Menú Overlay de Fondo */
.menu-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 82, 69, 0.3);
  backdrop-filter: blur(4px);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.menu-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

/* ==========================================================================
   Hero Section (index.html)
   ========================================================================== */
.hero {
  padding: clamp(3rem, 10vw, 6rem) 0 clamp(4rem, 12vw, 8rem) 0;
  position: relative;
  background: radial-gradient(circle at 80% 20%, var(--primary-ultra-light) 0%, transparent 50%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-content {
  text-align: center;
}

.hero-tagline {
  font-family: var(--font-headings);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--secondary);
  margin-bottom: 1rem;
  display: inline-block;
  background-color: var(--primary-ultra-light);
  padding: 0.4rem 1rem;
  border-radius: 50px;
}

.hero h1 {
  margin-bottom: 1.5rem;
  color: var(--primary);
  line-height: 1.15;
}

.hero-desc {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
}

.hero-img-container {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-img-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  max-width: 500px;
  width: 100%;
}

.hero-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background-color: var(--bg-white);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 10;
}

.hero-badge-number {
  font-family: var(--font-headings);
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.hero-badge-text {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  line-height: 1.2;
}

/* ==========================================================================
   Sección Servicios (Home / servicios.html)
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.service-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-ultra-light);
}

.service-icon-box {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-sm);
  background-color: var(--primary-ultra-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.service-icon-box svg {
  width: 32px;
  height: 32px;
  fill: currentColor;
}

.service-card:hover .service-icon-box {
  background-color: var(--primary);
  color: var(--bg-white);
}

.service-card h3 {
  margin-bottom: 1rem;
}

.service-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.service-link {
  font-family: var(--font-headings);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--secondary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.service-link:hover {
  color: var(--primary);
}

/* ==========================================================================
   Sección Convenios (Home / convenios.html)
   ========================================================================== */
.corporate-section {
  position: relative;
  overflow: hidden;
}

.corporate-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3.5rem;
  align-items: center;
}

.corporate-content h2 {
  margin-bottom: 1.5rem;
}

.corporate-list {
  list-style: none;
  margin: 2rem 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.corporate-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 1.05rem;
}

.corporate-list li svg {
  width: 24px;
  height: 24px;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}

/* Formularios de Convenio / Contacto */
.form-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 5vw, 3.5rem) clamp(1.5rem, 4vw, 2.5rem);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  color: var(--text-dark);
}

.form-card h3 {
  margin-bottom: 0.5rem;
}

.form-card p {
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-family: var(--font-headings);
  font-weight: 500;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.5rem;
  color: var(--primary);
}

.form-control {
  width: 100%;
  padding: 0.9rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background-color: var(--primary-ultra-light);
  color: var(--text-dark);
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--primary);
  background-color: var(--bg-white);
  box-shadow: 0 0 0 3px rgba(0, 130, 105, 0.1);
}

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

/* ==========================================================================
   Sección Productos y Tecnologías (productos.html)
   ========================================================================== */
.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 4rem;
}

.product-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.product-img-wrapper {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background-color: var(--primary-ultra-light);
}

.product-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.product-card:hover .product-img-wrapper img {
  transform: scale(1.05);
}

.product-info {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-info h3 {
  margin-bottom: 0.8rem;
}

.product-info p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

/* Tecnologías de Lunas */
.tech-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

.tech-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--primary);
  transition: var(--transition);
}

.tech-card:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-md);
}

.tech-card h3 {
  margin-bottom: 0.8rem;
}

.tech-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ==========================================================================
   Sección Contacto (contacto.html)
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3.5rem;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-bottom: 3rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--primary-ultra-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.contact-text h4 {
  margin-bottom: 0.3rem;
}

.contact-text p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.map-container {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  aspect-ratio: 16 / 9;
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background-color: var(--bg-dark);
  color: var(--bg-light);
  padding: 5rem 0 2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-brand h3 {
  color: var(--bg-white);
  margin-bottom: 1rem;
}

.footer-brand p {
  color: hsl(170, 10%, 75%);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.footer-links h4, .footer-contact h4 {
  color: var(--bg-white);
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.footer-links-list a {
  color: hsl(170, 10%, 75%);
  font-size: 0.95rem;
}

.footer-links-list a:hover {
  color: var(--accent);
  padding-left: 5px;
}

.footer-contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  color: hsl(170, 10%, 75%);
}

.footer-contact-list svg {
  width: 20px;
  height: 20px;
  color: var(--accent);
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
  font-size: 0.85rem;
  color: hsl(170, 10%, 60%);
}

/* ==========================================================================
   Media Queries (Responsive Layouts)
   ========================================================================== */

/* Tablets (768px y superior) */
@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 2rem;
  }
  
  .hero-content {
    text-align: left;
  }
  
  .hero-desc {
    margin-left: 0;
  }
  
  .hero-actions {
    flex-direction: row;
    justify-content: flex-start;
  }
  
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .corporate-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .contact-grid {
    grid-template-columns: 1fr 1.2fr;
  }
  
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* Escritorio (1024px y superior) */
@media (min-width: 1024px) {
  .nav {
    display: block;
  }
  
  .burger-btn {
    display: none;
  }
  
  .mobile-menu {
    display: none;
  }
  
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .services-grid .service-card:nth-child(4),
  .services-grid .service-card:nth-child(5) {
    grid-column: span 1;
  }
  
  /* Layout centrado para servicios si quedan sueltos */
  .services-layout-center {
    display: flex;
    justify-content: center;
    grid-column: span 3;
    gap: 2rem;
    flex-wrap: wrap;
  }
  
  .services-layout-center .service-card {
    width: calc(33.333% - 1.34rem);
  }
}