/* ============================================
   AMARANTH — Estilos principales

   Estructura:
   1. Variables (colores, fuentes, espaciados)
   2. Reset & Base
   3. Layout & Utilities
   4. Navegación
   5. Hero
   6. Servicios
   7. Proceso
   8. Sobre nosotros
   9. Contacto
   10. Footer
   11. Animaciones
   12. Responsive
   ============================================ */

/* ===== 1. VARIABLES ===== */
:root {
  /* Paleta de colores — monocromática negro/plata */
  --color-primary: #C0C0C0;      /* Plata — color principal de marca */
  --color-primary-light: #D8D8D8;
  --color-primary-dark: #A0A0A0;
  --color-accent: #E8E8E8;       /* Plata claro — para acentos y CTAs */
  --color-accent-light: #F0F0F0;

  --color-bg: #000000;           /* Negro puro */
  --color-bg-alt: #0A0A0A;      /* Negro alternativo para secciones */
  --color-surface: #141414;     /* Superficies (cards, inputs) */

  --color-text: #E0E0E0;         /* Texto principal — gris claro/plata */
  --color-text-light: #999999;   /* Texto secundario — gris medio */
  --color-text-muted: #555555;   /* Texto terciario — gris oscuro */

  --color-border: #222222;

  /* Tipografía */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Playfair Display', Georgia, serif;

  /* Espaciados */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  /* Bordes */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  /* Transiciones */
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* Anchos */
  --max-width: 1200px;
}

/* ===== 2. RESET & BASE ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.2;
  color: var(--color-text);
}

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

a:hover {
  color: var(--color-primary-light);
}

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

ul {
  list-style: none;
}

/* ===== 3. LAYOUT & UTILITIES ===== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section-tag {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--space-lg);
  color: var(--color-text);
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  gap: 0.5rem;
}

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

.btn-primary:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary-light);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(192, 192, 192, 0.15);
}

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

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-nav {
  padding: 0.6rem 1.5rem;
  background: var(--color-primary);
  color: white !important;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
}

.btn-nav:hover {
  background: var(--color-primary-light);
  color: white !important;
}

.btn-full {
  width: 100%;
}

/* ===== 4. NAVEGACIÓN ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
  padding: var(--space-sm) 0;
}

.navbar.scrolled {
  border-bottom-color: var(--color-border);
  padding: 0.6rem 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  display: flex;
  align-items: center;
}

.logo:hover {
  color: var(--color-text);
  opacity: 0.9;
}

.logo-symbol {
  color: var(--color-primary);
  margin-right: 0.25rem;
}

.logo-img {
  height: 44px;
  width: auto;
  display: block;
}

.logo-img-footer {
  height: 72px;
  width: auto;
}

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

.nav-links a {
  color: var(--color-text-light);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  transition: all var(--transition);
  border-radius: 2px;
}

.lang-switch {
  display: flex;
  gap: 0.25rem;
  margin-left: var(--space-sm);
}

.lang-btn {
  padding: 0.3rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
}

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

/* ===== 5. HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 5rem;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 750px;
}

.hero-tag {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  margin-bottom: var(--space-md);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-light);
  max-width: 580px;
  margin-bottom: var(--space-lg);
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.hero-gradient {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 60%;
  height: 120%;
  background: radial-gradient(ellipse, rgba(192, 192, 192, 0.04) 0%, transparent 70%);
  z-index: 1;
  pointer-events: none;
}

/* ===== 5.5 PAQUETES ===== */
.packages {
  padding: var(--space-3xl) 0;
  background: var(--color-bg-alt);
}

.packages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  align-items: start;
}

.package-card {
  background: var(--color-surface);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  position: relative;
}

.package-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.package-featured {
  border-color: var(--color-primary);
  box-shadow: 0 0 30px rgba(192, 192, 192, 0.05);
}

.package-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #000000;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 1rem;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.package-tier {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.package-name {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.package-desc {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

.package-features {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: var(--space-lg);
}

.package-features li {
  font-size: 0.85rem;
  color: var(--color-text-light);
  padding-left: 1.4rem;
  position: relative;
}

.package-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
}

/* ===== 6. SERVICIOS ===== */
.services {
  padding: var(--space-3xl) 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.service-card {
  background: var(--color-surface);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  border-color: var(--color-primary);
}

.service-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(192, 192, 192, 0.08);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
}

.service-card h3 {
  font-family: var(--font-body);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.service-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  margin-bottom: var(--space-md);
}

.service-features {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.service-features li {
  font-size: 0.85rem;
  color: var(--color-text-light);
  padding-left: 1.2rem;
  position: relative;
}

.service-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* ===== 7. PROCESO ===== */
.process {
  padding: var(--space-3xl) 0;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.step {
  position: relative;
}

.step-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  color: rgba(192, 192, 192, 0.1);
  margin-bottom: var(--space-sm);
  line-height: 1;
}

.step h3 {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.step p {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

/* ===== 7b. TRABAJOS ===== */
.works {
  padding: var(--space-3xl) 0;
  background: var(--color-bg);
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.work-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}

.work-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-primary-dark);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
}

.work-preview-link {
  display: block;
  text-decoration: none;
}

.work-preview {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}

.work-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
  display: block;
}

.work-card:hover .work-preview img {
  transform: scale(1.04);
}

.work-preview-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

.work-card:hover .work-preview-overlay {
  opacity: 1;
}

.work-preview-overlay span {
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  border: 1px solid var(--color-primary);
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.4);
}

.work-info {
  padding: var(--space-md);
}

.work-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xs);
}

.work-type {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
}

.work-year {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.work-name {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.work-desc {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: var(--space-sm);
}

.work-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.work-tag {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 0.2rem 0.75rem;
}

/* ===== 8. SOBRE NOSOTROS ===== */
.about {
  padding: var(--space-3xl) 0;
  background: var(--color-bg-alt);
}

.about-content {
  max-width: 700px;
}

.about-text {
  color: var(--color-text-light);
  font-size: 1.05rem;
  margin-bottom: var(--space-md);
}

.about-stats {
  display: flex;
  gap: var(--space-xl);
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ===== 9. CONTACTO ===== */
.contact {
  padding: var(--space-3xl) 0;
}

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

.contact-text {
  font-size: 1.1rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-lg);
  line-height: 1.8;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.contact-method {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-light);
}

.contact-method svg {
  color: var(--color-primary);
  flex-shrink: 0;
}

.contact-method a {
  color: var(--color-text);
  font-weight: 500;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
}

.form-group input,
.form-group textarea {
  padding: 0.8rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-muted);
}

/* ===== 10. FOOTER ===== */
.footer {
  background: #080809;
  color: var(--color-text);
  padding: var(--space-xl) 0 var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.footer-brand .logo {
  color: var(--color-text);
  margin-bottom: var(--space-xs);
  display: inline-block;
}

.footer-brand p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--color-text);
}

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ===== 11. ANIMACIONES ===== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== 12. RESPONSIVE ===== */
@media (max-width: 968px) {
  .packages-grid {
    grid-template-columns: 1fr;
    max-width: 450px;
    margin: 0 auto;
  }

  .services-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 75%;
    max-width: 320px;
    height: 100vh;
    background: var(--color-surface);
    flex-direction: column;
    justify-content: center;
    padding: var(--space-xl);
    gap: var(--space-lg);
    transition: right var(--transition);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.4);
  }

  .nav-links.active {
    right: 0;
  }

  .lang-switch {
    margin-left: 0;
  }

  .hero {
    min-height: 80vh;
  }

  .hero-cta {
    flex-direction: column;
  }

  .process-steps {
    grid-template-columns: 1fr;
  }

  .about-stats {
    flex-direction: column;
    gap: var(--space-md);
  }

  .footer-links {
    flex-direction: column;
    gap: var(--space-sm);
  }
}