/* ==========================================================================
   JUAN SARDELLA - REFACCIONES & CONSTRUCCIÓN INTEGRAL
   Diseño CSS Moderno, Responsivo, Animado y Optimizado para Hostinger & Móvil
   ========================================================================== */

/* --- Importación de Fuentes Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

/* --- Variables de Diseño y Sistema de Color --- */
:root {
  /* Paleta Primaria */
  --clr-bg: #F8F9FD;
  --clr-bg-surface: #FFFFFF;
  --clr-bg-glass: rgba(255, 255, 255, 0.85);
  --clr-text-main: #1E232E;
  --clr-text-muted: #5A6275;
  --clr-text-light: #8E97AB;
  
  /* Marca: Naranja Construcción & Grafito */
  --clr-primary: #FF5722;
  --clr-primary-hover: #E64A19;
  --clr-primary-light: rgba(255, 87, 34, 0.12);
  --clr-secondary: #1F2430;
  --clr-secondary-light: #2A3040;
  
  /* Detalles & Acentos */
  --clr-accent-gold: #D4AF37;
  --clr-success: #10B981;
  --clr-whatsapp: #25D366;
  --clr-border: #E2E8F0;
  --clr-border-focus: #FF5722;

  /* Sombras y Gradientes */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 24px rgba(31, 36, 48, 0.08);
  --shadow-lg: 0 16px 40px rgba(31, 36, 48, 0.14);
  --shadow-primary: 0 10px 25px rgba(255, 87, 34, 0.35);
  --grad-primary: linear-gradient(135deg, #FF5722 0%, #FF7043 100%);
  --grad-dark: linear-gradient(135deg, #1A1D26 0%, #292E3D 100%);
  --grad-hero-overlay: linear-gradient(135deg, rgba(18, 21, 29, 0.90) 0%, rgba(31, 36, 48, 0.85) 100%);

  /* Tipografías y Espaciado */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --container-max: 1240px;
}

/* --- Tema Oscuro (Dark Mode) --- */
[data-theme="dark"] {
  --clr-bg: #111319;
  --clr-bg-surface: #1A1D27;
  --clr-bg-glass: rgba(26, 29, 39, 0.9);
  --clr-text-main: #F1F4F9;
  --clr-text-muted: #A0ABC0;
  --clr-text-light: #6C7890;
  --clr-border: #2B3040;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
  --grad-hero-overlay: linear-gradient(135deg, rgba(12, 14, 20, 0.94) 0%, rgba(20, 24, 34, 0.90) 100%);
}

/* --- Reset y General --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-body);
  background-color: var(--clr-bg);
  color: var(--clr-text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

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

button {
  cursor: pointer;
  background: none;
}

ul, ol {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* --- Keyframe Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes floatAnim {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

@keyframes pulseGlow {
  0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.6); }
  70% { box-shadow: 0 0 0 18px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.reveal-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-on-scroll.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* --- Tipografía --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--clr-text-main);
}

.text-gradient {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  background: var(--clr-primary-light);
  color: var(--clr-primary);
  border: 1px solid rgba(255, 87, 34, 0.2);
}

/* --- Botones Estilizados --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition);
  white-space: nowrap;
  min-height: 48px;
}

.btn-primary {
  background: var(--grad-primary);
  color: #FFFFFF;
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 16px 32px rgba(255, 87, 34, 0.45);
}

.btn-secondary {
  background: var(--clr-secondary);
  color: #FFFFFF;
}

.btn-secondary:hover {
  background: var(--clr-secondary-light);
  transform: translateY(-2px);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.1);
  color: var(--clr-text-main);
  border: 2px solid var(--clr-border);
  backdrop-filter: blur(4px);
}

.btn-outline:hover {
  border-color: var(--clr-primary);
  color: var(--clr-primary);
  background: var(--clr-primary-light);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: var(--clr-whatsapp);
  color: #FFFFFF;
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 28px rgba(37, 211, 102, 0.45);
}

/* --- Header & Navegación --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--clr-bg-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--clr-border);
  transition: var(--transition);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--clr-text-main);
}

.brand-logo img {
  height: 48px;
  width: 48px;
  border-radius: var(--radius-sm);
  transition: transform 0.4s ease;
}

.brand-logo:hover img {
  transform: rotate(5deg) scale(1.05);
}

.brand-sub {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--clr-primary);
  display: block;
  margin-top: -4px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-weight: 600;
  font-size: 1rem;
  color: var(--clr-text-muted);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--clr-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  border-radius: 2px;
  background: var(--clr-primary);
  transition: var(--transition);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.theme-toggle-btn {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--clr-bg-surface);
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-main);
  font-size: 1.25rem;
  transition: var(--transition);
}

.theme-toggle-btn:hover {
  background: var(--clr-primary-light);
  color: var(--clr-primary);
  transform: rotate(20deg);
}

.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 34px;
  height: 34px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.hamburger-btn span {
  width: 100%;
  height: 3px;
  background-color: var(--clr-text-main);
  border-radius: 2px;
  transition: var(--transition);
}

/* --- Hero Section Con Foto de Fondo y Máxima Elegancia --- */
.hero-section {
  padding-top: 150px;
  padding-bottom: 90px;
  position: relative;
  overflow: hidden;
  background: var(--grad-hero-overlay), url('/preview/juansardella/assets/hero_bg.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: #FFFFFF;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 40px;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.4rem;
  letter-spacing: -0.02em;
  margin-top: 16px;
  margin-bottom: 20px;
  color: #FFFFFF;
  animation: fadeInUp 0.8s ease;
}

.hero-content p {
  font-size: 1.2rem;
  color: #CBD5E1;
  margin-bottom: 32px;
  max-width: 620px;
  animation: fadeInUp 1s ease;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 40px;
  animation: fadeInUp 1.1s ease;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 36px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.stat-item h3 {
  font-size: 2.2rem;
  color: var(--clr-primary);
  font-weight: 800;
}

.stat-item p {
  font-size: 0.9rem;
  color: #94A3B8;
  margin-bottom: 0;
}

.hero-card-wrapper {
  position: relative;
  animation: floatAnim 4s ease-in-out infinite;
}

.hero-main-card {
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-main-card img {
  border-radius: var(--radius-md);
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.floating-badge {
  position: absolute;
  bottom: -22px;
  left: 20px;
  background: var(--clr-secondary);
  color: #FFFFFF;
  padding: 16px 22px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 14px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.floating-badge i {
  font-size: 2rem;
  color: var(--clr-primary);
}

/* --- Section Title Reutilizable --- */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 50px auto;
}

.section-header h2 {
  font-size: 2.5rem;
  margin-top: 12px;
  margin-bottom: 16px;
}

.section-header p {
  color: var(--clr-text-muted);
  font-size: 1.1rem;
}

/* --- Banner de Confianza / Highlights --- */
.trust-banner {
  background: var(--clr-secondary);
  color: #FFFFFF;
  padding: 45px 0;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 16px;
  transition: var(--transition);
}

.trust-item:hover {
  transform: translateY(-3px);
}

.trust-item i {
  font-size: 2.4rem;
  color: var(--clr-primary);
}

.trust-item h4 {
  color: #FFFFFF;
  font-size: 1.15rem;
  margin-bottom: 2px;
}

.trust-item p {
  color: var(--clr-text-light);
  font-size: 0.85rem;
}

/* --- Sección Sobre Nosotros --- */
.about-section {
  padding: 90px 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

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

.about-img-main {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: transform 0.5s ease;
}

.about-img-main:hover {
  transform: scale(1.02);
}

.about-experience-card {
  position: absolute;
  top: 30px;
  right: -20px;
  background: var(--grad-primary);
  color: #FFFFFF;
  padding: 22px 30px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-primary);
  text-align: center;
}

.about-experience-card span {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 800;
  display: block;
  line-height: 1;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 24px;
}

.about-feature-box {
  background: var(--clr-bg-surface);
  padding: 22px;
  border-radius: var(--radius-md);
  border: 1px solid var(--clr-border);
  transition: var(--transition);
}

.about-feature-box:hover {
  border-color: var(--clr-primary);
  box-shadow: var(--shadow-md);
}

.about-feature-box i {
  color: var(--clr-primary);
  font-size: 1.6rem;
  margin-bottom: 10px;
}

/* --- Sección Servicios --- */
.services-section {
  padding: 90px 0;
  background: var(--clr-bg-surface);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.service-card {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 34px 26px;
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}

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

.service-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: var(--clr-primary-light);
  color: var(--clr-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 22px;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: var(--clr-primary);
  color: #FFFFFF;
  transform: rotate(6deg) scale(1.05);
}

.service-card h3 {
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.service-card p {
  color: var(--clr-text-muted);
  font-size: 0.95rem;
  margin-bottom: 22px;
  flex-grow: 1;
}

.service-list {
  margin-bottom: 24px;
}

.service-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--clr-text-muted);
  margin-bottom: 8px;
}

.service-list i {
  color: var(--clr-success);
}

/* --- Cotización Rápida & Compromiso de Obra --- */
.commitment-section {
  padding: 90px 0;
  background: var(--grad-dark);
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
}

.commitment-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 50px;
}

.commitment-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 30px 22px;
  text-align: center;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.commitment-card:hover {
  transform: translateY(-8px);
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--clr-primary);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4);
}

.commitment-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  background: var(--clr-primary-light);
  color: var(--clr-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 18px;
  border: 1px solid rgba(255, 87, 34, 0.3);
}

.commitment-card h4 {
  color: #FFFFFF;
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.commitment-card p {
  color: var(--clr-text-light);
  font-size: 0.88rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

.commitment-card .btn {
  width: 100%;
  padding: 12px 16px;
  font-size: 0.9rem;
}

.commitment-features-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  background: rgba(255, 87, 34, 0.1);
  border: 1px solid var(--clr-primary);
  border-radius: var(--radius-lg);
  padding: 28px 36px;
}

.c-feature-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.c-feature-item i {
  font-size: 2.2rem;
  color: var(--clr-primary);
}

.c-feature-item h5 {
  color: #FFFFFF;
  font-size: 1.05rem;
  margin-bottom: 2px;
}

.c-feature-item p {
  color: var(--clr-text-light);
  font-size: 0.85rem;
  margin: 0;
}

/* --- Galería de Trabajos --- */
.gallery-section {
  padding: 90px 0;
}

.gallery-filter-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.filter-tab {
  padding: 10px 24px;
  border-radius: var(--radius-full);
  background: var(--clr-bg-surface);
  border: 1px solid var(--clr-border);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--clr-text-muted);
  transition: var(--transition);
}

.filter-tab.active, .filter-tab:hover {
  background: var(--clr-primary);
  color: #FFFFFF;
  border-color: var(--clr-primary);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.gallery-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  height: 290px;
  cursor: pointer;
}

.gallery-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-card:hover img {
  transform: scale(1.1);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(18, 20, 26, 0.92) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 22px;
  opacity: 0;
  transition: var(--transition);
}

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

.gallery-overlay h4 {
  color: #FFFFFF;
  font-size: 1.15rem;
}

.gallery-overlay p {
  color: var(--clr-text-light);
  font-size: 0.88rem;
}

/* --- Comparador Antes / Después --- */
.before-after-box {
  background: var(--clr-bg-surface);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--clr-border);
  margin-top: 60px;
}

.ba-slider-container {
  position: relative;
  width: 100%;
  height: 400px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.ba-img-before, .ba-img-after {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ba-img-after {
  clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%);
}

.ba-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background: var(--clr-primary);
  transform: translateX(-50%);
  cursor: ew-resize;
}

.ba-handle-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--clr-primary);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-primary);
}

/* --- Proceso de Trabajo --- */
.process-section {
  padding: 90px 0;
  background: var(--clr-bg-surface);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.process-card {
  text-align: center;
  padding: 24px;
  position: relative;
  transition: var(--transition);
}

.process-card:hover {
  transform: translateY(-5px);
}

.process-number {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  background: var(--clr-primary-light);
  color: var(--clr-primary);
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px auto;
  border: 2px solid var(--clr-primary);
}

.process-card h4 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.process-card p {
  color: var(--clr-text-muted);
  font-size: 0.92rem;
}

/* --- Testimonios --- */
.testimonials-section {
  padding: 90px 0;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.testimonial-card {
  background: var(--clr-bg-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.testimonial-stars {
  color: var(--clr-accent-gold);
  margin-bottom: 16px;
  font-size: 1.15rem;
}

.testimonial-text {
  font-style: italic;
  color: var(--clr-text-muted);
  margin-bottom: 20px;
  font-size: 0.98rem;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--clr-secondary);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.author-info h5 {
  font-size: 1.05rem;
}

.author-info p {
  font-size: 0.82rem;
  color: var(--clr-text-light);
}

/* --- FAQ Acordeón --- */
.faq-section {
  padding: 90px 0;
  background: var(--clr-bg-surface);
}

.faq-accordion {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  background: var(--clr-bg);
  transition: var(--transition);
}

.faq-trigger {
  width: 100%;
  padding: 22px 26px;
  text-align: left;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--clr-text-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.faq-trigger i {
  transition: transform 0.3s ease;
  color: var(--clr-primary);
}

.faq-item.active .faq-trigger i {
  transform: rotate(180deg);
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  padding: 0 26px;
}

.faq-item.active .faq-content {
  padding: 0 26px 22px 26px;
}

.faq-content p {
  color: var(--clr-text-muted);
  font-size: 0.98rem;
}

/* --- Contacto & Formulario --- */
.contact-section {
  padding: 90px 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
}

.contact-info-card {
  background: var(--clr-secondary);
  color: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 44px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-info-card h3 {
  color: #FFFFFF;
  font-size: 1.9rem;
  margin-bottom: 16px;
}

.contact-info-card p {
  color: var(--clr-text-light);
  margin-bottom: 32px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-item i {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  background: rgba(255, 87, 34, 0.2);
  color: var(--clr-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.contact-item h5 {
  color: var(--clr-text-light);
  font-size: 0.85rem;
}

.contact-item a, .contact-item p {
  color: #FFFFFF;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0;
}

.contact-form-card {
  background: var(--clr-bg-surface);
  border-radius: var(--radius-lg);
  padding: 44px;
  border: 1px solid var(--clr-border);
  box-shadow: var(--shadow-md);
}

.form-group-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 14px 18px;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  color: var(--clr-text-main);
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--clr-primary);
  background: var(--clr-bg-surface);
  box-shadow: 0 0 0 4px rgba(255, 87, 34, 0.12);
}

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

/* --- Botón Flotante de WhatsApp Animado --- */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  background: var(--clr-whatsapp);
  color: #FFFFFF;
  width: 62px;
  height: 62px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.3rem;
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.45);
  transition: var(--transition);
  animation: pulseGlow 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.12);
}

/* --- Footer --- */
.site-footer {
  background: var(--clr-secondary);
  color: var(--clr-text-light);
  padding: 70px 0 30px 0;
  border-top: 1px solid var(--clr-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  color: #FFFFFF;
  margin-bottom: 12px;
}

.footer-col h4 {
  color: #FFFFFF;
  font-size: 1.1rem;
  margin-bottom: 16px;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.88rem;
}

/* ==========================================================================
   DISEÑO RESPONSIVE Y MOBILE FIRST PERFECCIONADO
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-grid, .about-grid, .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .services-grid, .gallery-grid, .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .trust-grid, .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .hero-content h1 {
    font-size: 2.7rem;
  }
}

@media (max-width: 768px) {
  .hero-section {
    background-attachment: scroll; /* Mejor rendimiento en teléfonos */
    padding-top: 115px;
    padding-bottom: 50px;
  }

  .hamburger-btn {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--clr-bg-surface);
    flex-direction: column;
    padding: 28px;
    gap: 22px;
    border-bottom: 1px solid var(--clr-border);
    box-shadow: var(--shadow-lg);
    transform: translateY(-160%);
    transition: transform 0.4s ease;
  }

  .nav-menu.active {
    transform: translateY(0);
  }

  .header-actions .btn {
    display: none;
  }

  .services-grid, .gallery-grid, .testimonials-grid, .trust-grid, .process-grid, .commitment-grid, .commitment-features-bar {
    grid-template-columns: 1fr;
  }

  .form-group-row, .calc-step-grid {
    grid-template-columns: 1fr;
  }

  .hero-content h1 {
    font-size: 2.1rem;
  }

  .hero-main-card img {
    height: 250px;
  }

  .floating-badge {
    position: relative;
    bottom: 0;
    left: 0;
    margin-top: 16px;
  }

  .about-experience-card {
    position: relative;
    top: 0;
    right: 0;
    margin-top: 16px;
  }

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