/* ==========================================================================
   STUCOARTE - HOJA DE ESTILOS PRINCIPAL
   Identidad: Estuco y Acabados Arquitectónicos, Texturas y Carácter
   Tecnología: CSS3 Vanilla Puro (100% compatible con GitHub Pages)
   ========================================================================== */

/* ---------------------------------------------------------
   1. VARIABLES DE DISEÑO & PALETA DE TONOS CÁLIDOS
   --------------------------------------------------------- */
:root {
  /* Barro Colonial, Teja y Arcilla Natural */
  --color-primary: #964326;       /* Teja y arcilla colonial profunda */
  --color-primary-light: #B85836; /* Arcilla tostada clara */
  --color-primary-dark: #6E2B16;  /* Almagre y barro cocido añejo */
  --color-primary-glow: rgba(150, 67, 38, 0.22);

  /* Ocre Cálido & Acentos Dorados */
  --color-ochre: #C88A42;         /* Ocre arquitectónico cálido */
  --color-ochre-light: #E0A765;   /* Reflejo ocre al sol */
  --color-ochre-subtle: rgba(200, 138, 66, 0.15);

  /* Tonos de Madera Colonial, Hierro Forjado y Carbón */
  --color-dark: #1A1412;          /* Viga colonial oscura / Hierro forjado */
  --color-dark-surface: #261F1B;  /* Superficie de tarjetas y modales */
  --color-dark-elevated: #322A25; /* Elevación en modo oscuro */
  --color-secondary: #3B312A;     /* Pizarra y madera nogal */

  /* Piedra Cantera, Arena de Río y Cal Apagada */
  --color-sand: #ECE2D0;          /* Mortero y arena caliza cálida */
  --color-sand-light: #F8F4EC;    /* Cal apagada / Blanco colonial */
  --color-sand-border: #DACBB4;   /* Borde suave de calicanto */
  --color-cantera: #DFD0BA;       /* Piedra cantera añejada */
  --color-white: #FFFFFF;

  /* Tipografía y Textos */
  --color-text-main: #261F1B;     /* Texto principal de alto contraste */
  --color-text-muted: #6B5E54;    /* Texto secundario cálido */
  --color-text-light: #B3A495;    /* Texto tenue sobre fondos oscuros */
  --color-text-on-dark: #F8F4EC;  /* Texto claro sobre fondo oscuro */

  /* Acentos Funcionales */
  --color-whatsapp: #25D366;
  --color-success: #2E7D32;

  /* Tipografías */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Sombras y Elevaciones Arquitectónicas */
  --shadow-sm: 0 4px 14px rgba(26, 20, 18, 0.05);
  --shadow-md: 0 12px 32px rgba(26, 20, 18, 0.08);
  --shadow-lg: 0 24px 55px rgba(26, 20, 18, 0.13);
  --shadow-dark: 0 20px 45px rgba(0, 0, 0, 0.45);
  --shadow-clay: 0 10px 28px rgba(150, 67, 38, 0.35);

  /* Bordes y Radios */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --border-subtle: 1px solid rgba(150, 67, 38, 0.22);
  --border-light: 1px solid rgba(218, 203, 180, 0.75);

  /* Transiciones */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.55s cubic-bezier(0.16, 1, 0.3, 1);

  /* Dimensiones */
  --container-max: 1220px;
  --nav-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-sand-light);
  color: var(--color-text-main);
  line-height: 1.65;
  overflow-x: hidden;
  font-size: 1rem;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

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

ul, ol {
  list-style: none;
}

/* ---------------------------------------------------------
   3. TIPOGRAFÍA GLOBAL & CLASES UTILITARIAS
   --------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-dark);
  letter-spacing: -0.02em;
}

.text-clay {
  color: var(--color-primary);
}

.text-ochre {
  color: var(--color-ochre);
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-ochre-light) 0%, var(--color-primary-light) 50%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section {
  padding: 6.5rem 0;
  position: relative;
}

@media (max-width: 768px) {
  .section {
    padding: 4.5rem 0;
  }
}

.section-dark {
  background-color: var(--color-dark);
  color: var(--color-text-on-dark);
}

.section-dark h2, 
.section-dark h3, 
.section-dark h4 {
  color: var(--color-white);
}

.section-sand {
  background-color: var(--color-sand);
}

/* Encabezados de Sección */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.5rem auto;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1.15rem;
  background: rgba(150, 67, 38, 0.12);
  border: 1px solid rgba(150, 67, 38, 0.35);
  border-radius: var(--radius-full);
  color: var(--color-primary);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}

.section-dark .section-badge {
  background: rgba(200, 138, 66, 0.16);
  color: var(--color-ochre-light);
  border-color: rgba(200, 138, 66, 0.4);
}

.section-title {
  font-size: clamp(2rem, 3.8vw, 3rem);
  font-weight: 800;
  margin-bottom: 1.1rem;
}

.section-subtitle {
  font-size: clamp(1rem, 1.3vw, 1.15rem);
  color: var(--color-text-muted);
  font-weight: 400;
  line-height: 1.6;
}

.section-dark .section-subtitle {
  color: var(--color-text-light);
}

/* ---------------------------------------------------------
   4. BOTONES Y LLAMADAS A LA ACCIÓN
   --------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.85rem 1.85rem;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-normal);
  cursor: pointer;
  text-align: center;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
  color: var(--color-white);
  box-shadow: var(--shadow-clay);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(150, 67, 38, 0.5);
  background: linear-gradient(135deg, #C46440 0%, var(--color-primary) 100%);
  color: var(--color-white);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

.btn-dark {
  background-color: var(--color-dark);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(150, 67, 38, 0.3);
}

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

.btn-whatsapp {
  background-color: #25D366;
  color: #FFFFFF;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.35);
}

.btn-whatsapp:hover {
  background-color: #1EBE5D;
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.5);
  color: #FFFFFF;
}

.btn-sm {
  padding: 0.55rem 1.25rem;
  font-size: 0.85rem;
}

.btn-icon-arrow svg {
  transition: transform var(--transition-fast);
}

.btn:hover .btn-icon-arrow svg {
  transform: translateX(4px);
}

/* ---------------------------------------------------------
   5. BARRA DE NAVEGACIÓN (NAVBAR)
   --------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: all var(--transition-normal);
  background: transparent;
}

.site-header.scrolled {
  background: rgba(26, 20, 18, 0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  border-bottom: 1px solid rgba(150, 67, 38, 0.25);
  height: 72px;
}

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

/* Marca / Logo StucoArte */
.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  z-index: 1010;
}

.brand-icon-box {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  box-shadow: none;
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.brand-icon-box img,
.brand-logo-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.brand:hover .brand-icon-box {
  transform: translateY(-1px) scale(1.04);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.01em;
  line-height: 1.1;
}

.brand-name span {
  color: var(--color-primary-light);
}

.brand-tagline {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--color-ochre-light);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

/* Enlaces del Menú Desktop */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.94rem;
  font-weight: 500;
  color: rgba(248, 244, 236, 0.88);
  position: relative;
  padding: 0.35rem 0;
  transition: color var(--transition-fast);
}

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

.nav-link:hover,
.nav-link.active {
  color: var(--color-ochre-light);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Botón Hamburguesa Móvil */
.menu-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, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  z-index: 1010;
}

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

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

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

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

/* ---------------------------------------------------------
   6. HERO PRINCIPAL (PORTADA COLONIAL)
   --------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--nav-height) + 2rem);
  padding-bottom: 5.5rem;
  background-color: var(--color-dark);
  color: var(--color-white);
  overflow: hidden;
}

.hero-bg-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  filter: brightness(0.42) saturate(1.15);
  transform: scale(1.03);
  transition: transform 12s ease-out;
}

.hero:hover .hero-bg-img {
  transform: scale(1.0);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(26, 20, 18, 0.88) 0%,
    rgba(26, 20, 18, 0.52) 50%,
    rgba(26, 20, 18, 0.96) 100%
  );
  z-index: 2;
}

.hero-texture-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(rgba(200, 138, 66, 0.08) 1px, transparent 0);
  background-size: 32px 32px;
  opacity: 0.7;
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 860px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 1.15rem;
  background: rgba(26, 20, 18, 0.75);
  border: 1px solid rgba(200, 138, 66, 0.45);
  border-radius: var(--radius-full);
  backdrop-filter: blur(8px);
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-ochre-light);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--color-ochre-light);
  animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 1; box-shadow: 0 0 14px var(--color-ochre-light); }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.badge-text {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-sand-light);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero-title {
  font-size: clamp(2.4rem, 5.2vw, 4.4rem);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.08;
  margin-bottom: 0.8rem;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: clamp(1.15rem, 1.6vw, 1.4rem);
  font-weight: 500;
  color: var(--color-ochre-light);
  margin-bottom: 1.2rem;
  line-height: 1.35;
}

.hero-description {
  font-size: clamp(1.05rem, 1.3vw, 1.2rem);
  color: rgba(248, 244, 236, 0.9);
  line-height: 1.65;
  margin-bottom: 2.2rem;
  max-width: 680px;
  font-weight: 300;
}

.hero-subtext {
  display: block;
  margin-top: 0.6rem;
  color: var(--color-sand-light);
  font-weight: 500;
  font-size: 0.98rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

/* Barra de Estadísticas Rápidas */
.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding: 1.8rem;
  background: rgba(38, 31, 27, 0.78);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(150, 67, 38, 0.35);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
  max-width: 900px;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 2.5vw, 2.4rem);
  font-weight: 800;
  color: var(--color-ochre-light);
  line-height: 1;
  margin-bottom: 0.35rem;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--color-text-light);
  font-weight: 500;
  line-height: 1.3;
}

/* ---------------------------------------------------------
   7. SECCIÓN SOBRE NOSOTROS (ABOUT)
   --------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4.5rem;
  align-items: center;
}

.about-image-wrapper {
  position: relative;
}

.about-main-img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-sand-border);
}

.about-experience-badge {
  position: absolute;
  bottom: -25px;
  right: -20px;
  background: var(--color-dark);
  color: var(--color-white);
  padding: 1.6rem 2rem;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-ochre);
  box-shadow: var(--shadow-dark);
  text-align: center;
  min-width: 180px;
}

.badge-years {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-ochre-light);
  line-height: 1;
}

.badge-desc {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-sand-light);
  margin-top: 0.3rem;
}

.about-content .section-badge {
  margin-bottom: 0.8rem;
}

.about-heading {
  font-size: clamp(1.8rem, 2.8vw, 2.6rem);
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.about-text {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 1.4rem;
}

.about-features-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  margin: 2rem 0;
}

.about-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
}

.feature-icon-box {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(150, 67, 38, 0.14);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.feature-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-dark);
}

.feature-desc {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ---------------------------------------------------------
   8. SERVICIOS ESPECIALIZADOS COLONIALES
   --------------------------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-sand-border);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}

.service-image-box {
  position: relative;
  height: 230px;
  overflow: hidden;
}

.service-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.service-card:hover .service-img {
  transform: scale(1.08);
}

.service-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(26, 20, 18, 0.82);
  backdrop-filter: blur(8px);
  color: var(--color-ochre-light);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(200, 138, 66, 0.4);
}

.service-body {
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
  color: var(--color-dark);
}

.service-desc {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 1.2rem;
}

.service-bullets {
  margin-bottom: 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.service-bullet {
  font-size: 0.84rem;
  color: var(--color-text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.service-bullet svg {
  color: var(--color-primary);
  flex-shrink: 0;
}

.service-card-footer {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid rgba(218, 203, 180, 0.6);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.service-link {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

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

.service-link svg {
  transition: transform var(--transition-fast);
}

.service-link:hover svg {
  transform: translateX(4px);
}

/* ---------------------------------------------------------
   8.1. CÓMO TRABAJAMOS (PROCESO)
   --------------------------------------------------------- */

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.process-card {
  background: var(--color-white);
  border: 1px solid var(--color-sand-border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.6rem;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.process-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.process-step-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
}

.process-step-num {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.process-step-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.75rem;
  background: var(--color-sand);
  color: var(--color-secondary);
  border-radius: var(--radius-full);
}

.process-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 0.6rem;
}

.process-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.contact-quick-banner {
  background: rgba(37, 211, 102, 0.08);
  border: 1.5px solid rgba(37, 211, 102, 0.35);
  border-radius: var(--radius-md);
  padding: 1.2rem 1.5rem;
  margin-bottom: 1.8rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.contact-quick-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-quick-text {
  font-size: 0.92rem;
  color: var(--color-dark);
  line-height: 1.45;
}

.contact-quick-text strong {
  color: #128C7E;
}

/* ---------------------------------------------------------
   9. PORTAFOLIO Y GALERÍA DE PROYECTOS
   --------------------------------------------------------- */
.gallery-filter-bar {
  display: flex;
  justify-content: center;
  gap: 0.7rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.gallery-filter-btn {
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-white);
  border: 1px solid var(--color-sand-border);
  transition: all var(--transition-fast);
}

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

.gallery-filter-btn.active {
  background: var(--color-dark);
  color: var(--color-sand-light);
  border-color: var(--color-dark);
  box-shadow: var(--shadow-sm);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 320px;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  background-color: var(--color-dark-surface);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border: 1px solid var(--color-sand-border);
}

.gallery-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.gallery-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}

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

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(26, 20, 18, 0.1) 0%, rgba(26, 20, 18, 0.92) 100%);
  opacity: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.6rem;
  transition: opacity var(--transition-normal);
}

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

.gallery-zoom-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.6);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
  opacity: 0;
}

.gallery-item:hover .gallery-zoom-icon {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
}

.gallery-category {
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-ochre-light);
  letter-spacing: 0.08em;
  margin-bottom: 0.3rem;
}

.gallery-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.35;
}

/* Modal Lightbox */
.lightbox-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(18, 14, 12, 0.96);
  backdrop-filter: blur(12px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
  padding: 2rem;
}

.lightbox-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-container {
  position: relative;
  max-width: 960px;
  width: 100%;
  background: var(--color-dark-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(200, 138, 66, 0.35);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.65);
  display: flex;
  flex-direction: column;
}

.lightbox-img-wrapper {
  max-height: 70vh;
  overflow: hidden;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-img {
  width: 100%;
  max-height: 70vh;
  object-fit: contain;
}

.lightbox-caption {
  padding: 1.4rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--color-dark-surface);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.lightbox-title {
  color: var(--color-white);
  font-size: 1.15rem;
  font-weight: 700;
}

.lightbox-category {
  color: var(--color-ochre-light);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
}

.lightbox-close {
  position: absolute;
  top: 15px;
  right: 15px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.7);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all var(--transition-fast);
  z-index: 10;
}

.lightbox-close:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.lightbox-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(26, 20, 18, 0.75);
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  z-index: 10;
}

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

.lightbox-prev {
  left: 15px;
}

.lightbox-next {
  right: 15px;
}

/* ---------------------------------------------------------
   10. LLAMADA A LA ACCIÓN (BANNER CTA IMPACTANTE)
   --------------------------------------------------------- */
.cta-banner-section {
  position: relative;
  background-color: var(--color-dark);
  color: var(--color-white);
  padding: 5.5rem 0;
  overflow: hidden;
}

.cta-bg-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.cta-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.28) saturate(1.2);
}

.cta-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, rgba(26, 20, 18, 0.96) 0%, rgba(26, 20, 18, 0.75) 100%);
  z-index: 2;
}

.cta-inner {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
}

.cta-text-side {
  max-width: 680px;
}

.cta-title {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 1rem;
  line-height: 1.15;
}

.cta-desc {
  font-size: 1.1rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

.cta-actions {
  display: flex;
  gap: 1.2rem;
  flex-shrink: 0;
  flex-direction: column;
}

/* ---------------------------------------------------------
   11. SECCIÓN DE CONTACTO & FORMULARIO INTERACTIVO
   --------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 3.5rem;
}

.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  background: var(--color-white);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-sand-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.contact-card:hover {
  transform: translateX(6px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.contact-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(150, 67, 38, 0.12);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-card-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 0.2rem;
}

.contact-card-value {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.4;
}

.contact-card-sub {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-top: 0.2rem;
}

/* Cómo trabajamos: tarjetas más ligeras */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  align-items: stretch;
}

.process-grid .process-card {
  padding: 28px 24px;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(130, 86, 52, 0.14);
  border-radius: 16px;
  box-shadow: none;
  min-height: 0;
  height: auto;
}

.process-grid .process-card:hover {
  transform: none;
  box-shadow: none;
  border-color: rgba(130, 86, 52, 0.3);
}

.process-grid .process-step-header {
  margin-bottom: 20px;
}

.process-grid .process-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #eee0d2;
  color: #974523;
  font-size: 17px;
  font-weight: 700;
  line-height: 1;
}

.process-grid .process-title {
  margin: 0 0 12px;
  font-size: 20px;
  line-height: 1.3;
}

.process-grid .process-desc {
  margin: 0;
  font-size: 16px;
  line-height: 1.65;
  color: #665b51;
}

@media (max-width: 1024px) {
  .process-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .process-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .process-grid .process-card {
    padding: 24px;
  }
}

/* Formulario */
.contact-form-wrapper {
  background: var(--color-white);
  padding: 2.8rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-sand-border);
  box-shadow: var(--shadow-lg);
}

.form-header-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
}

.form-header-sub {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  margin-bottom: 1.2rem;
}

.form-group {
  margin-bottom: 1.2rem;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 0.45rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border: 1.5px solid var(--color-sand-border);
  border-radius: var(--radius-sm);
  background: var(--color-sand-light);
  color: var(--color-dark);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-white);
  box-shadow: 0 0 0 4px var(--color-primary-glow);
}

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

.form-buttons-row {
  display: flex;
  gap: 1rem;
  margin-top: 1.8rem;
  flex-wrap: wrap;
}

.form-status-alert {
  display: none;
  padding: 1rem 1.2rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-top: 1.2rem;
  font-weight: 500;
}

.form-status-alert.success {
  display: block;
  background: #E8F5E9;
  color: #2E7D32;
  border: 1px solid #A5D6A7;
}

.form-status-alert.error {
  display: block;
  background: #FFEBEE;
  color: #C62828;
  border: 1px solid #FFCDD2;
}

/* ---------------------------------------------------------
   12. PREGUNTAS FRECUENTES (FAQ ACORDEÓN)
   --------------------------------------------------------- */
.faq-accordion {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-sand-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-item.active {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  padding: 1.3rem 1.6rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-dark);
  text-align: left;
}

.faq-icon-toggle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-sand);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-dark);
  flex-shrink: 0;
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.faq-item.active .faq-icon-toggle {
  transform: rotate(180deg);
  background: var(--color-primary);
  color: var(--color-white);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.3s ease;
  padding: 0 1.6rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 1.6rem 1.4rem 1.6rem;
}

/* ---------------------------------------------------------
   13. PIE DE PÁGINA (FOOTER)
   --------------------------------------------------------- */
.site-footer {
  background-color: var(--color-dark);
  color: var(--color-text-light);
  padding: 5rem 0 2rem 0;
  border-top: 1px solid rgba(150, 67, 38, 0.3);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1.4fr;
  gap: 3.5rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-about-text {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--color-text-light);
  margin: 1.2rem 0 1.6rem 0;
}

.footer-socials {
  display: flex;
  gap: 0.8rem;
}

.social-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

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

.footer-col-title {
  color: var(--color-white);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.4rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-col-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--color-ochre);
}

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

.footer-link {
  font-size: 0.9rem;
  color: var(--color-text-light);
  transition: color var(--transition-fast), transform var(--transition-fast);
  display: inline-block;
}

.footer-link:hover {
  color: var(--color-ochre-light);
  transform: translateX(4px);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  font-size: 0.9rem;
  margin-bottom: 0.9rem;
  color: var(--color-text-light);
}

.footer-contact-item svg {
  color: var(--color-ochre-light);
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 2rem;
  font-size: 0.84rem;
  color: rgba(179, 164, 149, 0.85);
  flex-wrap: wrap;
  gap: 1rem;
}

/* ---------------------------------------------------------
   14. BOTONES FLOTANTES (WHATSAPP & SUBIR ARRIBA)
   --------------------------------------------------------- */
.floating-widgets {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-end;
}

.floating-whatsapp {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background-color: #25D366;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.45);
  transition: all var(--transition-normal);
  position: relative;
}

.floating-whatsapp:hover {
  transform: scale(1.1) translateY(-2px);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.6);
  background-color: #20BA5A;
}

.floating-whatsapp .whatsapp-tooltip {
  position: absolute;
  right: 70px;
  background: #1A1412;
  color: #FFFFFF;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  transform: translateX(10px);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(200, 138, 66, 0.4);
}

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

.back-to-top {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-dark);
  color: var(--color-white);
  border: 1px solid rgba(150, 67, 38, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(15px);
  transition: all var(--transition-normal);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* ---------------------------------------------------------
   15. ANIMACIONES Y EFECTOS REVEAL
   --------------------------------------------------------- */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1), transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* ---------------------------------------------------------
   16. MEDIA QUERIES (RESPONSIVE)
   --------------------------------------------------------- */
@media (max-width: 1024px) {
  .services-grid,
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

@media (max-width: 768px) {
  :root {
    --nav-height: 70px;
  }

  /* Menú Móvil Desplegable */
  .menu-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 82%;
    max-width: 340px;
    height: 100vh;
    background: #1C1513;
    flex-direction: column;
    align-items: flex-start;
    padding: 6rem 2.5rem 3rem 2.5rem;
    gap: 1.5rem;
    transition: right var(--transition-normal);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.75);
    border-left: 1px solid rgba(200, 138, 66, 0.35);
    z-index: 1005;
  }

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

  .nav-link {
    font-size: 1.15rem;
    width: 100%;
  }

  .nav-actions .btn-quote {
    display: none;
  }

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

  .about-image-wrapper {
    order: 2;
  }

  .about-main-img {
    height: 380px;
  }

  .about-experience-badge {
    bottom: -15px;
    right: 10px;
    padding: 1.2rem 1.4rem;
  }

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

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

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

  .contact-form-wrapper {
    padding: 2rem 1.4rem;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .cta-inner {
    flex-direction: column;
    text-align: center;
  }

  .cta-actions {
    width: 100%;
    flex-direction: column;
  }

  .cta-actions .btn {
    width: 100%;
  }

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

@media (max-width: 480px) {
  .hero-stats-grid {
    grid-template-columns: 1fr;
    padding: 1.2rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .about-features-list {
    grid-template-columns: 1fr;
  }
}