/* ==============================================================================
   LEND – DISEÑO MOBILIARIO | SISTEMA DE ESTILOS CSS
   Medellín, Colombia | Ebanistería y Carpintería Arquitectónica a Medida
   ============================================================================== */

/* ------------------------------------------------------------------------------
   1. VARIABLES DE MARCA Y SISTEMA DE DISEÑO
   ------------------------------------------------------------------------------ */
:root {
  /* Paleta cromática principal */
  --color-primary-navy: #0B192C;       /* Azul marino profundo (fondo y jerarquía mayor) */
  --color-primary-dark: #070F1A;       /* Azul ultra oscuro para contrastes extremos */
  --color-navy-surface: #132438;       /* Azul marino intermedio para tarjetas oscuras */
  --color-navy-border: #1E3652;        /* Borde sutil para componentes navy */
  
  --color-accent-orange: #FF6B1A;      /* Naranja vibrante oficial LEND */
  --color-accent-hover: #E8580C;       /* Naranja saturado para hover */
  --color-accent-glow: rgba(255, 107, 26, 0.28);
  --color-accent-soft: rgba(255, 107, 26, 0.12);

  /* Tonos neutros cálidos y fondos */
  --color-bg-light: #F8FAFC;           /* Fondo general claro */
  --color-bg-white: #FFFFFF;           /* Blanco puro de tarjetas y modales */
  --color-bg-alt: #F1F5F9;             /* Fondo gris cálido alterno para contraste */
  --color-border-light: #E2E8F0;       /* Bordes de tarjetas claras */
  --color-border-subtle: #EBEFF5;

  /* Tipografía y legibilidad */
  --color-text-main: #1E293B;          /* Texto principal (antracita profundo) */
  --color-text-muted: #64748B;         /* Texto secundario / leyendas */
  --color-text-light: #94A3B8;         /* Texto tenue */
  --color-text-inverse: #FFFFFF;       /* Texto blanco sobre fondo oscuro */

  /* Tipografías */
  --font-heading: 'Montserrat', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  /* Espaciados y estructura */
  --header-height: 80px;
  --header-height-mobile: 70px;
  --container-max-width: 1240px;
  --container-padding: clamp(1.25rem, 4vw, 2.5rem);

  /* Sombras suaves de diseño arquitectónico */
  --shadow-sm: 0 2px 8px rgba(11, 25, 44, 0.05);
  --shadow-md: 0 8px 24px rgba(11, 25, 44, 0.08);
  --shadow-lg: 0 16px 40px rgba(11, 25, 44, 0.12);
  --shadow-xl: 0 24px 60px rgba(11, 25, 44, 0.18);
  --shadow-orange: 0 10px 30px rgba(255, 107, 26, 0.35);

  /* Transiciones y radios */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  color: var(--color-text-main);
  background-color: var(--color-bg-light);
  line-height: 1.65;
  font-size: 1rem;
  overflow-x: hidden;
}

img, picture, svg, video {
  display: block;
  max-width: 100%;
}

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

button, input, select, textarea {
  font: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

/* Contenedor central */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* ------------------------------------------------------------------------------
   3. TIPOGRAFÍA Y ENCABEZADOS
   ------------------------------------------------------------------------------ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-primary-navy);
  letter-spacing: -0.02em;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent-orange);
  background: var(--color-accent-soft);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
  width: fit-content;
}

.section-tag.light {
  color: #FFA266;
  background: rgba(255, 107, 26, 0.2);
  border: 1px solid rgba(255, 107, 26, 0.3);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem auto;
}

.section-header.left-aligned {
  text-align: left;
  margin-left: 0;
}

.section-title {
  font-size: clamp(1.85rem, 3.2vw, 2.75rem);
  margin-bottom: 1rem;
  font-weight: 800;
}

.section-subtitle {
  font-size: clamp(1rem, 1.2vw, 1.15rem);
  color: var(--color-text-muted);
  font-weight: 400;
  line-height: 1.6;
}

/* ------------------------------------------------------------------------------
   4. COMPONENTES: BOTONES
   ------------------------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.85rem 1.75rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent-orange), var(--color-accent-hover));
  color: #FFFFFF;
  box-shadow: 0 4px 16px rgba(234, 88, 12, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-orange);
  background: linear-gradient(135deg, #FF7B33, var(--color-accent-orange));
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.12);
  color: #FFFFFF;
  border: 1.5px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: #FFFFFF;
  transform: translateY(-2px);
}

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

.btn-outline-navy:hover {
  background: var(--color-primary-navy);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: #25D366;
  color: #FFFFFF;
  box-shadow: 0 4px 18px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  background: #20BD5A;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.45);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.55rem 1.15rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 1.05rem 2.2rem;
  font-size: 1.05rem;
}

.btn-full {
  width: 100%;
}

/* ------------------------------------------------------------------------------
   5. HEADER Y NAVEGACIÓN
   ------------------------------------------------------------------------------ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  transition: all var(--transition-smooth);
  background: transparent;
}

.site-header.scrolled {
  background: rgba(11, 25, 44, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  height: 72px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  height: 48px;
  transition: transform var(--transition-fast);
}

.brand-logo:hover {
  transform: scale(1.02);
}

.brand-logo img {
  height: 100%;
  width: auto;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.925rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.88);
  position: relative;
  padding: 0.5rem 0;
}

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

.nav-link:hover {
  color: #FFFFFF;
}

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

.header-cta-group {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.1);
  color: #FFFFFF;
}

.mobile-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: #FFFFFF;
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.mobile-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.mobile-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ------------------------------------------------------------------------------
   6. HERO SECTION
   ------------------------------------------------------------------------------ */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-height) + 2rem);
  padding-bottom: 5rem;
  background-color: var(--color-primary-navy);
  color: #FFFFFF;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero-background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
  filter: brightness(0.92);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(11, 25, 44, 0.88) 0%,
    rgba(11, 25, 44, 0.76) 50%,
    rgba(7, 15, 26, 0.92) 100%
  );
  backdrop-filter: blur(1.5px);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(10px);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: #FFA266;
  margin-bottom: 1.5rem;
}

.hero-badge .pin-dot {
  width: 8px;
  height: 8px;
  background: var(--color-accent-orange);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--color-accent-orange);
}

.hero-headline {
  font-size: clamp(2.5rem, 5.5vw, 4.4rem);
  font-weight: 900;
  line-height: 1.08;
  color: #FFFFFF;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.hero-headline .highlight {
  background: linear-gradient(135deg, #FF8A3D 0%, var(--color-accent-orange) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 2.5rem;
  max-width: 660px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1.15rem;
  margin-bottom: 3.5rem;
}

/* Indicadores de confianza en el Hero */
.hero-features-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-feature-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.hero-feature-item .icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: rgba(255, 107, 26, 0.18);
  border: 1px solid rgba(255, 107, 26, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFA266;
  flex-shrink: 0;
}

.hero-feature-item .text h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #FFFFFF;
}

.hero-feature-item .text p {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.65);
}

/* ------------------------------------------------------------------------------
   7. SECCIÓN: QUIÉNES SOMOS / QUÉ HACEMOS
   ------------------------------------------------------------------------------ */
.about-section {
  padding: 6.5rem 0;
  background-color: var(--color-bg-white);
}

.about-intro-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
  margin-bottom: 4.5rem;
}

.about-intro-text p.lead {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-text-main);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.about-intro-text p {
  color: var(--color-text-muted);
  font-size: 1.025rem;
  line-height: 1.7;
  margin-bottom: 1.75rem;
}

.about-visual-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 3;
}

.about-visual-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.about-visual-card:hover img {
  transform: scale(1.04);
}

.about-visual-card .badge-overlay {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  right: 1.5rem;
  padding: 1.15rem;
  background: rgba(11, 25, 44, 0.92);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.about-visual-card .badge-overlay h4 {
  font-size: 1rem;
  color: #FFA266;
  margin-bottom: 0.25rem;
}

.about-visual-card .badge-overlay p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 0;
}

/* 4 Pilares LEND */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.pillar-card {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 2rem 1.6rem;
  transition: all var(--transition-fast);
  position: relative;
}

.pillar-card:hover {
  transform: translateY(-6px);
  background: #FFFFFF;
  border-color: rgba(255, 107, 26, 0.35);
  box-shadow: var(--shadow-lg);
}

.pillar-card .pillar-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(255, 107, 26, 0.15), rgba(255, 107, 26, 0.05));
  color: var(--color-accent-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.35rem;
  border: 1px solid rgba(255, 107, 26, 0.2);
}

.pillar-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
  color: var(--color-primary-navy);
}

.pillar-card p {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* ------------------------------------------------------------------------------
   8. SECCIÓN: QUÉ FABRICAMOS (TARJETAS DE CATEGORÍA)
   ------------------------------------------------------------------------------ */
.categories-section {
  padding: 6.5rem 0;
  background-color: var(--color-bg-alt);
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

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

.category-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(255, 107, 26, 0.4);
}

.category-image-wrapper {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #CBD5E1;
}

.category-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.category-card:hover .category-image-wrapper img {
  transform: scale(1.06);
}

.category-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(11, 25, 44, 0.88);
  backdrop-filter: blur(8px);
  color: #FFFFFF;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.category-body {
  padding: 1.75rem 1.6rem 2rem 1.6rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.category-body h3 {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 0.65rem;
  color: var(--color-primary-navy);
}

.category-body p {
  font-size: 0.935rem;
  color: var(--color-text-muted);
  line-height: 1.55;
  margin-bottom: 1.65rem;
  flex-grow: 1;
}

.category-action {
  margin-top: auto;
}

.category-btn-quote {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
  color: var(--color-accent-orange);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  border: 1px solid rgba(255, 107, 26, 0.25);
  transition: all var(--transition-fast);
}

.category-card:hover .category-btn-quote,
.category-btn-quote:hover {
  background: var(--color-accent-orange);
  color: #FFFFFF;
  border-color: var(--color-accent-orange);
  box-shadow: 0 4px 14px rgba(255, 107, 26, 0.3);
}

/* ------------------------------------------------------------------------------
   9. SECCIÓN: PROCESO EN 4 PASOS (LÍNEA DE TIEMPO)
   ------------------------------------------------------------------------------ */
.process-section {
  padding: 6.5rem 0;
  background-color: var(--color-primary-navy);
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  position: relative;
}

.process-grid::before {
  content: '';
  position: absolute;
  top: 42px;
  left: 60px;
  right: 60px;
  height: 2px;
  background: linear-gradient(90deg, rgba(255, 107, 26, 0.1) 0%, var(--color-accent-orange) 50%, rgba(255, 107, 26, 0.1) 100%);
  z-index: 1;
}

.process-step-card {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 0.75rem;
}

.step-number-circle {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: var(--color-navy-surface);
  border: 2px solid var(--color-accent-orange);
  box-shadow: 0 0 24px rgba(255, 107, 26, 0.25);
  margin: 0 auto 1.75rem auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.process-step-card:hover .step-number-circle {
  transform: scale(1.08);
  background: var(--color-accent-orange);
  border-color: #FFFFFF;
  box-shadow: var(--shadow-orange);
}

.step-number-circle .num {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  color: #FFFFFF;
  line-height: 1;
}

.step-number-circle .label {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #FFA266;
}

.process-step-card:hover .step-number-circle .label {
  color: #FFFFFF;
}

.process-step-card h3 {
  font-size: 1.25rem;
  color: #FFFFFF;
  margin-bottom: 0.75rem;
  font-weight: 700;
}

.process-step-card p {
  font-size: 0.925rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.55;
}

/* ------------------------------------------------------------------------------
   10. SECCIÓN: GALERÍA DE PROYECTOS REALES (GRID + LIGHTBOX)
   ------------------------------------------------------------------------------ */
.gallery-section {
  padding: 6.5rem 0;
  background-color: var(--color-bg-white);
}

/* Filtros de proyectos */
.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.65rem 1.35rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: var(--radius-full);
  background: var(--color-bg-light);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: var(--color-primary-navy);
  background: var(--color-bg-alt);
  border-color: #CBD5E1;
}

.filter-btn.active {
  background: var(--color-primary-navy);
  color: #FFFFFF;
  border-color: var(--color-primary-navy);
  box-shadow: 0 4px 12px rgba(11, 25, 44, 0.2);
}

/* Grid de galería */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3.5rem;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  background: #E2E8F0;
  transition: all var(--transition-smooth);
}

.gallery-item.hidden {
  display: none;
}

.gallery-item-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.gallery-item.portrait .gallery-item-image {
  aspect-ratio: 3 / 4;
}

.gallery-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover .gallery-item-image img {
  transform: scale(1.08);
}

/* Overlay al hacer hover en foto */
.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(11, 25, 44, 0.95) 0%,
    rgba(11, 25, 44, 0.6) 50%,
    rgba(11, 25, 44, 0.2) 100%
  );
  opacity: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  transition: opacity var(--transition-fast);
  color: #FFFFFF;
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-overlay .tag {
  font-size: 0.75rem;
  font-weight: 700;
  color: #FFA266;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.35rem;
}

.gallery-overlay h3 {
  font-size: 1.1rem;
  color: #FFFFFF;
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.gallery-overlay p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.4;
  margin-bottom: 0.85rem;
}

.gallery-overlay .view-zoom-icon {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: #FFFFFF;
}

/* Banner de redes sociales de la galería */
.gallery-social-banner {
  background: linear-gradient(135deg, #F8FAFC 0%, #EEF2F6 100%);
  border: 1.5px dashed #CBD5E1;
  border-radius: var(--radius-lg);
  padding: 2.25rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.gallery-social-info h3 {
  font-size: 1.25rem;
  margin-bottom: 0.35rem;
}

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

.gallery-social-buttons {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.social-pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  background: #FFFFFF;
  color: var(--color-primary-navy);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
}

.social-pill-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent-orange);
  color: var(--color-accent-orange);
}

.social-pill-btn.instagram:hover {
  background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
  color: #FFFFFF;
  border-color: transparent;
}

.social-pill-btn.tiktok:hover {
  background: #000000;
  color: #FFFFFF;
  border-color: #000000;
}

/* ------------------------------------------------------------------------------
   11. SECCIÓN: POR QUÉ LEND (VENTAJAS DIRECTAS)
   ------------------------------------------------------------------------------ */
.why-section {
  padding: 6.5rem 0;
  background-color: var(--color-bg-light);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.why-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 2.75rem 2rem;
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.why-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255, 107, 26, 0.35);
}

.why-icon-box {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-md);
  background: var(--color-primary-navy);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.75rem;
  position: relative;
}

.why-icon-box::after {
  content: '';
  position: absolute;
  bottom: -4px;
  right: -4px;
  width: 14px;
  height: 14px;
  background: var(--color-accent-orange);
  border-radius: 4px;
}

.why-card h3 {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 0.85rem;
  color: var(--color-primary-navy);
}

.why-card p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ------------------------------------------------------------------------------
   12. SECCIÓN: LLAMADO FINAL A COTIZAR (FORMULARIO Y CONTACTO)
   ------------------------------------------------------------------------------ */
.contact-section {
  padding: 6.5rem 0;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary-navy) 100%);
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 3.5rem;
  align-items: start;
}

.contact-info-panel h2 {
  font-size: clamp(2rem, 3.5vw, 3rem);
  color: #FFFFFF;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  font-weight: 800;
}

.contact-info-panel p.lead {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.contact-direct-cards {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.contact-direct-card {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition: all var(--transition-fast);
}

.contact-direct-card:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--color-accent-orange);
  transform: translateX(4px);
}

.contact-direct-card .icon-box {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  background: rgba(255, 107, 26, 0.2);
  color: #FFA266;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-direct-card.wa .icon-box {
  background: rgba(37, 211, 102, 0.2);
  color: #25D366;
}

.contact-direct-card .details h4 {
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 0.2rem;
}

.contact-direct-card .details p {
  font-size: 1.05rem;
  font-weight: 700;
  color: #FFFFFF;
}

/* Tarjeta del Formulario */
.quote-form-card {
  background: #FFFFFF;
  border-radius: var(--radius-xl);
  padding: 2.75rem 2.5rem;
  box-shadow: var(--shadow-xl);
  color: var(--color-text-main);
  position: relative;
}

.form-header {
  margin-bottom: 2rem;
}

.form-header h3 {
  font-size: 1.65rem;
  color: var(--color-primary-navy);
  margin-bottom: 0.5rem;
  font-weight: 800;
}

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

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-label {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary-navy);
}

.form-label .required {
  color: var(--color-accent-orange);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--color-border-light);
  background: var(--color-bg-light);
  color: var(--color-text-main);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent-orange);
  background: #FFFFFF;
  box-shadow: 0 0 0 4px var(--color-accent-soft);
}

.form-textarea {
  min-height: 110px;
  resize: vertical;
}

/* Botones de acción del formulario */
.form-actions {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-top: 1.5rem;
}

.form-feedback {
  margin-top: 1.25rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  display: none;
}

.form-feedback.success {
  display: block;
  background: #DCFCE7;
  color: #15803D;
  border: 1px solid #BBF7D0;
}

.form-feedback.error {
  display: block;
  background: #FEE2E2;
  color: #B91C1C;
  border: 1px solid #FECACA;
}

/* ------------------------------------------------------------------------------
   13. FOOTER
   ------------------------------------------------------------------------------ */
.site-footer {
  background-color: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 5rem 0 2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-brand .brand-logo {
  height: 48px;
  margin-bottom: 1.25rem;
}

.footer-brand p {
  font-size: 0.925rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  max-width: 320px;
}

.footer-social-icons {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-social-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  transition: all var(--transition-fast);
}

.footer-social-icon:hover {
  background: var(--color-accent-orange);
  border-color: var(--color-accent-orange);
  transform: translateY(-3px);
  color: #FFFFFF;
}

.footer-col h3 {
  font-size: 1.05rem;
  color: #FFFFFF;
  margin-bottom: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.footer-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-nav-list a {
  font-size: 0.925rem;
  color: rgba(255, 255, 255, 0.65);
  transition: color var(--transition-fast);
}

.footer-nav-list a:hover {
  color: #FFA266;
}

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.925rem;
  color: rgba(255, 255, 255, 0.75);
}

.footer-contact-item svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--color-accent-orange);
}

.footer-contact-item a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

/* ------------------------------------------------------------------------------
   14. BOTÓN FLOTANTE DE WHATSAPP
   ------------------------------------------------------------------------------ */
.floating-whatsapp-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 62px;
  height: 62px;
  border-radius: 50%;
  background: #25D366;
  color: #FFFFFF;
  box-shadow: 0 8px 26px rgba(37, 211, 102, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  transition: all var(--transition-fast);
}

.floating-whatsapp-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 32px rgba(37, 211, 102, 0.55);
}

.floating-whatsapp-btn::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: rgba(37, 211, 102, 0.4);
  z-index: -1;
  animation: pulse-wave 2.2s infinite;
}

@keyframes pulse-wave {
  0% {
    transform: scale(0.95);
    opacity: 0.8;
  }
  50% {
    transform: scale(1.3);
    opacity: 0;
  }
  100% {
    transform: scale(0.95);
    opacity: 0;
  }
}

.whatsapp-tooltip {
  position: absolute;
  right: calc(100% + 14px);
  background: var(--color-primary-navy);
  color: #FFFFFF;
  font-size: 0.825rem;
  font-weight: 700;
  white-space: nowrap;
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255, 255, 255, 0.15);
  pointer-events: none;
  opacity: 0;
  transform: translateX(10px);
  transition: all var(--transition-fast);
}

.floating-whatsapp-btn:hover .whatsapp-tooltip {
  opacity: 1;
  transform: translateX(0);
}

/* ------------------------------------------------------------------------------
   15. LIGHTBOX MODAL DE FOTOS
   ------------------------------------------------------------------------------ */
.lightbox-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(7, 15, 26, 0.94);
  backdrop-filter: blur(12px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.lightbox-modal.active {
  display: flex;
  opacity: 1;
}

.lightbox-content-box {
  position: relative;
  max-width: 1000px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  background: var(--color-primary-navy);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.lightbox-image-container {
  max-height: calc(90vh - 110px);
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000000;
  overflow: hidden;
}

.lightbox-image-container img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.lightbox-info-bar {
  padding: 1.25rem 1.75rem;
  background: var(--color-primary-navy);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.lightbox-text h3 {
  font-size: 1.15rem;
  color: #FFFFFF;
  margin-bottom: 0.25rem;
}

.lightbox-text p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}

.lightbox-close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(11, 25, 44, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all var(--transition-fast);
}

.lightbox-close-btn:hover {
  background: var(--color-accent-orange);
  transform: rotate(90deg);
}

.lightbox-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(11, 25, 44, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  z-index: 5;
}

.lightbox-nav-btn:hover {
  background: var(--color-accent-orange);
}

.lightbox-prev-btn {
  left: 1rem;
}

.lightbox-next-btn {
  right: 1rem;
}

/* ------------------------------------------------------------------------------
   16. MEDIA QUERIES / RESPONSIVE DESIGN (MÓVIL PRIMERO)
   ------------------------------------------------------------------------------ */
@media (max-width: 1024px) {
  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem 1.5rem;
  }
  
  .process-grid::before {
    display: none;
  }

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

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

  .footer-top-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }

  .contact-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: var(--header-height-mobile);
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(11, 25, 44, 0.98);
    backdrop-filter: blur(16px);
    flex-direction: column;
    justify-content: flex-start;
    padding: 2.5rem 1.5rem;
    gap: 1.5rem;
    transform: translateX(100%);
    transition: transform var(--transition-smooth);
    z-index: 999;
    overflow-y: auto;
  }

  .nav-menu.open {
    transform: translateX(0);
  }

  .nav-link {
    font-size: 1.25rem;
    width: 100%;
    text-align: center;
    padding: 0.75rem;
  }

  .header-cta-group .btn-header-quote {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  .hero-features-bar {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .about-intro-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

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

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

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

  .quote-form-card {
    padding: 2rem 1.5rem;
  }

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

  .footer-top-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .gallery-social-banner {
    flex-direction: column;
    align-items: flex-start;
    padding: 1.75rem 1.5rem;
  }

  .lightbox-info-bar {
    flex-direction: column;
    align-items: flex-start;
  }
}