/* ==========================================================================
   CONSTRUCTORA ANDES & COSTA - ESTILOS PRINCIPALES (RESPONSIVE FIRST)
   ========================================================================== */

/* 1. VARIABLES GLOBALES Y RESET */
:root {
  --color-primary: #0f172a;       /* Slate muy oscuro / Navy arquitectónico */
  --color-primary-light: #1e293b; /* Slate secundario */
  --color-accent: #ea580c;        /* Naranja cálido constructivo */
  --color-accent-hover: #c2410c;  /* Naranja oscuro para hover */
  --color-accent-soft: rgba(234, 88, 12, 0.12);
  --color-secondary: #0284c7;     /* Azul cielo técnico */
  --color-whatsapp: #25D366;      /* Verde oficial WhatsApp */
  --color-whatsapp-hover: #20ba5a;
  
  --color-bg: #f8fafc;            /* Fondo general sutil */
  --color-surface: #ffffff;       /* Fondo de tarjetas */
  --color-surface-alt: #f1f5f9;   /* Fondo alterno */
  --color-text-main: #1e293b;     /* Texto principal */
  --color-text-muted: #64748b;    /* Texto secundario */
  --color-text-light: #94a3b8;    /* Texto tenue */
  --color-border: #e2e8f0;        /* Bordes sutiles */
  --color-border-dark: #334155;   /* Bordes en fondos oscuros */

  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-title: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.04);
  --shadow-accent: 0 10px 25px -5px rgba(234, 88, 12, 0.3);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
  max-width: 100vw;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.6;
  overflow-x: hidden;
  max-width: 100vw;
  position: relative;
  margin: 0;
  padding: 0;
}

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

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

ul {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: 1rem; /* Previene zoom involuntario en iOS */
}

/* 2. LAYOUT Y CONTENEDORES */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.section {
  padding-top: 5rem;
  padding-bottom: 5rem;
  position: relative;
}

@media (max-width: 768px) {
  .section {
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
  }
}

.text-center { text-align: center; }
.text-white { color: #ffffff !important; }
.text-muted { color: var(--color-text-muted) !important; }
.w-full { width: 100%; }
.flex-1 { flex: 1; }

.section-header {
  max-width: 760px;
  margin: 0 auto 3.5rem auto;
}

.section-kicker {
  display: inline-block;
  font-size: 0.825rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  background: var(--color-accent-soft);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.85rem;
}

.kicker-light {
  background: rgba(255, 255, 255, 0.15);
  color: #fb923c;
}

.section-title {
  font-family: var(--font-title);
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.075rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* 3. BOTONES Y ELEMENTOS DE ACCIÓN */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  padding: 0.75rem 1.4rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-normal);
  text-align: center;
  box-sizing: border-box;
  max-width: 100%;
}

@media (max-width: 640px) {
  .btn {
    white-space: normal;
    padding: 0.85rem 1.15rem;
    font-size: 0.95rem;
  }
}

.btn-sm {
  padding: 0.55rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 0.95rem 1.85rem;
  font-size: 1.05rem;
}

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

.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -5px rgba(234, 88, 12, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(10px);
}

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

.btn-whatsapp {
  background: var(--color-whatsapp);
  color: #ffffff;
  box-shadow: 0 8px 20px -4px rgba(37, 211, 102, 0.35);
}

.btn-whatsapp:hover {
  background: var(--color-whatsapp-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 25px -4px rgba(37, 211, 102, 0.45);
}

.btn-outline-primary {
  background: transparent;
  border: 1.5px solid var(--color-accent);
  color: var(--color-accent);
}

.btn-outline-primary:hover {
  background: var(--color-accent);
  color: #ffffff;
}

.icon-btn {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
}

.icon-inline {
  width: 1.1rem;
  height: 1.1rem;
  display: inline-block;
  vertical-align: middle;
  margin-right: 0.35rem;
}

/* 4. TOP BAR INFORMATIVA */
.top-bar {
  background: #090d16;
  color: #94a3b8;
  font-size: 0.8125rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.5rem 0;
}

.top-bar-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.status-indicator {
  width: 8px;
  height: 8px;
  background-color: #22c55e;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px #22c55e;
  animation: pulseGreen 2s infinite;
}

@keyframes pulseGreen {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.top-link {
  color: #cbd5e1;
  display: inline-flex;
  align-items: center;
  font-weight: 500;
}

.top-link:hover { color: #ffffff; }
.divider { color: #334155; }

@media (max-width: 640px) {
  .top-bar-right { display: none; }
  .top-bar-content { justify-content: center; text-align: center; }
}

/* 5. MAIN HEADER & NAVBAR */
.main-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: all var(--transition-normal);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

/* Logotipo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-accent), #f97316);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(234, 88, 12, 0.35);
}

.brand-icon svg {
  width: 24px;
  height: 24px;
}

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

.brand-name {
  font-family: var(--font-title);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #ffffff;
  line-height: 1.1;
}

.brand-sub {
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  color: #94a3b8;
  font-weight: 600;
}

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

@media (min-width: 960px) {
  .desktop-nav {
    display: block;
  }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  color: #cbd5e1;
  font-size: 0.925rem;
  font-weight: 500;
  position: relative;
  padding: 0.4rem 0;
}

.nav-link:hover, .nav-link.active {
  color: #ffffff;
}

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

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

.nav-badge-parent {
  position: relative;
}

.nav-badge {
  font-size: 0.625rem;
  background: var(--color-accent);
  color: #ffffff;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-full);
  margin-left: 0.25rem;
  vertical-align: top;
  font-weight: 700;
}

.header-cta-group {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.header-cta {
  display: none;
}

@media (min-width: 640px) {
  .header-cta {
    display: inline-flex;
  }
}

/* Botón Hamburguesa */
.mobile-toggle-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 42px;
  height: 42px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
  gap: 5px;
}

@media (min-width: 960px) {
  .mobile-toggle-btn {
    display: none;
  }
}

.hamburger-bar {
  width: 20px;
  height: 2px;
  background-color: #ffffff;
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* MENÚ MÓVIL (DRAWER LATERAL) */
.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.mobile-menu-overlay.is-active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 85%;
  max-width: 320px;
  height: 100%;
  background: #0f172a;
  z-index: 210;
  display: flex;
  flex-direction: column;
  box-shadow: -10px 0 30px rgba(0,0,0,0.5);
  transform: translateX(100%);
  visibility: hidden;
  transition: transform var(--transition-smooth), visibility var(--transition-smooth);
}

.mobile-drawer.is-active {
  transform: translateX(0);
  visibility: visible;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.close-drawer-btn {
  background: transparent;
  border: none;
  color: #94a3b8;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.2rem;
}

.close-drawer-btn:hover {
  color: #ffffff;
}

.mobile-drawer-nav {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem 1rem;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-nav-link {
  display: block;
  padding: 0.85rem 1rem;
  color: #e2e8f0;
  font-size: 1.05rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.mobile-nav-link:hover, .mobile-nav-link:active {
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-accent);
}

.mobile-drawer-footer {
  padding: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: #090d16;
}

.drawer-contact-info {
  font-size: 0.75rem;
  color: #94a3b8;
  text-align: center;
  margin-top: 0.75rem;
}

/* 6. HERO SECTION */
.hero-section {
  position: relative;
  background: linear-gradient(135deg, #090d16 0%, #0f172a 60%, #1e293b 100%);
  color: #ffffff;
  padding-top: 4rem;
  padding-bottom: 5.5rem;
  overflow: hidden;
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(234, 88, 12, 0.14) 0%, transparent 60%);
  pointer-events: none;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3.5rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

@media (min-width: 960px) {
  .hero-container {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 0.4rem 0.95rem;
  border-radius: var(--radius-full);
  font-size: 0.825rem;
  font-weight: 600;
  color: #fb923c;
  margin-bottom: 1.5rem;
}

.pill-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
}

.hero-title {
  font-family: var(--font-title);
  font-size: clamp(2.2rem, 4.5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.35rem;
}

.highlight-text {
  background: linear-gradient(135deg, #fb923c 20%, #fdba74 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: #cbd5e1;
  line-height: 1.65;
  margin-bottom: 2.25rem;
  max-width: 620px;
}

.hero-cta-group {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

@media (min-width: 540px) {
  .hero-cta-group {
    flex-direction: row;
    align-items: center;
  }
}

.hero-trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: #cbd5e1;
}

.trust-item svg {
  width: 1.1rem;
  height: 1.1rem;
  color: #22c55e;
}

/* Visual Hero / Foto Grid */
.hero-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.hero-card-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-card-image img {
  width: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.hero-card-image:hover img {
  transform: scale(1.03);
}

.main-img img {
  height: 340px;
}

.sub-img {
  display: none;
}

@media (min-width: 640px) {
  .hero-visual {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
  }
  .main-img {
    grid-column: span 2;
    height: 290px;
  }
  .main-img img {
    height: 100%;
  }
  .sub-img {
    display: block;
    grid-column: span 2;
    height: 160px;
  }
  .sub-img img {
    height: 100%;
  }
}

.image-tag {
  position: absolute;
  bottom: 0.85rem;
  left: 0.85rem;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.floating-badge {
  position: absolute;
  bottom: -25px;
  right: 15px;
  max-width: calc(100% - 30px);
  box-sizing: border-box;
  background: #ffffff;
  color: var(--color-primary);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border);
  z-index: 3;
}

.badge-icon {
  font-size: 1.6rem;
  line-height: 1;
}

.badge-rating {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--color-primary);
}

.badge-text {
  font-size: 0.725rem;
  color: var(--color-text-muted);
}

/* 7. MÉTRICAS / AUTORIDAD */
.metrics-bar {
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
  padding: 2.25rem 0;
  box-shadow: var(--shadow-sm);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
  text-align: center;
}

@media (min-width: 768px) {
  .metrics-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.metric-number {
  display: block;
  font-family: var(--font-title);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.metric-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  line-height: 1.35;
}

/* 8. SERVICIOS INTEGRALES */
.services-section {
  background-color: var(--color-bg);
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 640px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(234, 88, 12, 0.4);
}

.service-icon-box {
  width: 54px;
  height: 54px;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.service-icon-box svg {
  width: 28px;
  height: 28px;
}

.service-category {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.service-title {
  font-family: var(--font-title);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.85rem;
  line-height: 1.3;
}

.service-desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.service-features {
  margin-top: auto;
  margin-bottom: 1.5rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-size: 0.85rem;
  color: var(--color-text-main);
  font-weight: 500;
}

.service-link {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.service-link:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

/* 9. CALCULADORA INTERACTIVA DE PRESUPUESTOS */
.calculator-section {
  background: linear-gradient(135deg, #090d16 0%, #0f172a 100%);
  color: #ffffff;
}

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

@media (min-width: 960px) {
  .calculator-wrapper {
    grid-template-columns: 0.95fr 1.05fr;
  }
}

.calc-title {
  font-family: var(--font-title);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.25rem;
}

.calc-desc {
  font-size: 1.05rem;
  color: #94a3b8;
  line-height: 1.65;
  margin-bottom: 2rem;
}

.calc-benefit-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.calc-benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.925rem;
  color: #cbd5e1;
}

.benefit-check {
  background: rgba(34, 197, 94, 0.2);
  color: #22c55e;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  flex-shrink: 0;
  font-size: 0.8rem;
}

/* Tarjeta Calculadora */
.calculator-card {
  background: #ffffff;
  color: var(--color-text-main);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-xl);
}

@media (max-width: 640px) {
  .calculator-card {
    padding: 1.5rem 1.25rem;
  }
}

.form-group {
  margin-bottom: 1.35rem;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.label-with-val {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.range-display-val {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-accent);
  background: var(--color-accent-soft);
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-sm);
}

.form-select, .form-input, .form-textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  background: #ffffff;
  color: var(--color-text-main);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-select:focus, .form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(234, 88, 12, 0.15);
}

.form-range {
  width: 100%;
  height: 8px;
  background: #e2e8f0;
  border-radius: 4px;
  outline: none;
  cursor: pointer;
  accent-color: var(--color-accent);
}

.range-marks {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 0.35rem;
}

/* Radio Group para Terminaciones */
.finish-radio-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

@media (max-width: 480px) {
  .finish-radio-group {
    grid-template-columns: 1fr;
  }
}

.radio-card {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.5rem;
  cursor: pointer;
  text-align: center;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  position: relative;
}

.radio-card input {
  position: absolute;
  opacity: 0;
}

.radio-card-body strong {
  display: block;
  font-size: 0.85rem;
  color: var(--color-primary);
}

.radio-card-body span {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  line-height: 1.2;
  display: block;
  margin-top: 0.2rem;
}

.radio-card.active, .radio-card:has(input:checked) {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
}

.radio-card.active strong, .radio-card:has(input:checked) strong {
  color: var(--color-accent);
}

/* Caja de Resultado */
.calc-result-box {
  background: #f8fafc;
  border: 2px dashed #cbd5e1;
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
  margin-bottom: 1.25rem;
}

.result-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.result-amount-range {
  font-family: var(--font-title);
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
  font-weight: 800;
  color: var(--color-accent);
  margin: 0.4rem 0;
}

.result-note {
  font-size: 0.775rem;
  color: var(--color-text-muted);
}

/* 10. METODOLOGÍA Y PROCESO */
.process-section {
  background-color: var(--color-surface);
}

.process-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 640px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .process-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.process-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  position: relative;
  transition: transform var(--transition-normal);
}

.process-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-accent);
}

.step-badge {
  display: inline-block;
  background: var(--color-primary);
  color: #ffffff;
  font-size: 0.725rem;
  font-weight: 800;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
}

.process-icon {
  width: 48px;
  height: 48px;
  background: #ffffff;
  color: var(--color-accent);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.process-icon svg {
  width: 24px;
  height: 24px;
}

.step-title {
  font-family: var(--font-title);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.step-description {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* 11. PORTAFOLIO Y FILTROS */
.portfolio-section {
  background: var(--color-bg);
}

.portfolio-filter-tabs {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 3rem;
}

.filter-tab {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-main);
  padding: 0.55rem 1.2rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-tab:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.filter-tab.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 640px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .portfolio-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.portfolio-item {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.portfolio-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.portfolio-thumb {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.portfolio-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.portfolio-item:hover .portfolio-thumb img {
  transform: scale(1.06);
}

.portfolio-tag {
  position: absolute;
  top: 0.85rem;
  left: 0.85rem;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  color: #ffffff;
  font-size: 0.725rem;
  font-weight: 700;
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-full);
}

.portfolio-info {
  padding: 1.35rem;
}

.portfolio-name {
  font-family: var(--font-title);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.35rem;
}

.portfolio-loc {
  font-size: 0.85rem;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.portfolio-detail {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  display: block;
}

/* 12. RAZONES / PILARES DE CONFIANZA */
.reasons-section {
  background: #0f172a;
  color: #ffffff;
}

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

@media (min-width: 960px) {
  .reasons-inner {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

.reasons-desc {
  font-size: 1.05rem;
  margin-bottom: 2.25rem;
  line-height: 1.6;
}

.reason-checklist {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .reason-checklist {
    grid-template-columns: 1fr 1fr;
  }
}

.reason-box {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.reason-icon {
  font-size: 1.6rem;
  background: rgba(255, 255, 255, 0.08);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.reason-box h4 {
  font-family: var(--font-title);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
  color: #ffffff;
}

.reason-box p {
  font-size: 0.85rem;
  color: #94a3b8;
  line-height: 1.5;
}

.reasons-quote-banner {
  background: linear-gradient(135deg, #1e293b 0%, #090d16 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  text-align: center;
  box-shadow: var(--shadow-xl);
}

.banner-badge {
  display: inline-block;
  background: var(--color-accent);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.banner-title {
  font-family: var(--font-title);
  font-size: 1.6rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1rem;
  line-height: 1.25;
}

.banner-p {
  font-size: 0.925rem;
  color: #cbd5e1;
  margin-bottom: 1.75rem;
  line-height: 1.6;
}

/* 13. TESTIMONIOS */
.testimonials-section {
  background: var(--color-bg);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 768px) {
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.testimonial-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

.testi-stars {
  color: #f59e0b;
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.testi-text {
  font-size: 0.95rem;
  color: var(--color-text-main);
  line-height: 1.65;
  margin-bottom: 1.75rem;
  font-style: italic;
  flex: 1;
}

.testi-author {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.author-avatar {
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
}

.author-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary);
}

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

/* 14. PREGUNTAS FRECUENTES (FAQ) */
.faq-section {
  background: var(--color-surface);
}

.faq-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 960px) {
  .faq-container {
    grid-template-columns: 0.85fr 1.15fr;
  }
}

.faq-help-card {
  margin-top: 2rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.help-title {
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.4rem;
}

.help-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.faq-accordion-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.faq-item[open] {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.faq-trigger {
  padding: 1.25rem 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  font-size: 1.05rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  gap: 1rem;
  user-select: none;
}

.faq-trigger::-webkit-details-marker {
  display: none;
}

.faq-icon-state {
  width: 28px;
  height: 28px;
  background: var(--color-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.faq-item[open] .faq-icon-state {
  transform: rotate(45deg);
  background: var(--color-accent);
  color: #ffffff;
}

.faq-body {
  padding: 0 1.5rem 1.35rem 1.5rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* 15. SECCIÓN Y FORMULARIO DE COTIZACIÓN */
.quote-section {
  background: linear-gradient(135deg, #090d16 0%, #0f172a 100%);
  color: #ffffff;
}

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

@media (min-width: 960px) {
  .quote-container {
    grid-template-columns: 0.95fr 1.05fr;
  }
}

.quote-title {
  font-family: var(--font-title);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.25rem;
}

.quote-desc {
  font-size: 1.05rem;
  line-height: 1.65;
  margin-bottom: 2.25rem;
}

.quote-contact-points {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.cpoint {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  font-size: 0.925rem;
}

.cpoint-icon {
  font-size: 1.2rem;
}

.cpoint strong {
  display: block;
  color: #ffffff;
}

.cpoint span, .cpoint a {
  color: #94a3b8;
}

.cpoint a:hover {
  color: var(--color-accent);
}

.quote-form-card {
  background: #ffffff;
  color: var(--color-text-main);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-xl);
}

@media (max-width: 640px) {
  .quote-form-card {
    padding: 1.5rem 1.25rem;
  }
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 640px) {
  .form-row {
    flex-direction: row;
  }
}

.privacy-disclaimer {
  font-size: 0.775rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 0.75rem;
}

/* 16. FOOTER */
.main-footer {
  background: #090d16;
  color: #94a3b8;
  padding-top: 4.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-bottom: 3.5rem;
}

@media (min-width: 640px) {
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-content {
    grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  }
}

.footer-logo {
  margin-bottom: 1.25rem;
}

.footer-text {
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
  color: #94a3b8;
}

.footer-rut {
  font-size: 0.75rem;
  color: #64748b;
  font-weight: 600;
}

.footer-title {
  font-family: var(--font-title);
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1.25rem;
}

.footer-links, .footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  font-size: 0.875rem;
}

.footer-links a:hover, .footer-contact-list a:hover {
  color: #ffffff;
}

.footer-contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  line-height: 1.4;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.5rem 0;
  font-size: 0.8rem;
  color: #64748b;
}

.footer-bottom-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom-inner {
    flex-direction: row;
    text-align: left;
  }
}

.footer-legal-links {
  display: flex;
  gap: 0.5rem;
}

/* 17. WIDGET FLOTANTE DE WHATSAPP (ESTILO FMR) */
.whatsapp-floating-widget {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 999;
}

.wa-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  filter: drop-shadow(0 6px 16px rgba(0,0,0,0.25));
}

.wa-tooltip {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  background: #ffffff;
  color: var(--color-primary);
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
  border: 1px solid var(--color-border);
  white-space: nowrap;
}

.wa-status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-whatsapp);
  border-radius: 50%;
  animation: pulseGreen 2s infinite;
  flex-shrink: 0;
}

.wa-icon-circle {
  width: 56px;
  height: 56px;
  background: var(--color-whatsapp);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.45);
  transition: transform var(--transition-fast), background var(--transition-fast);
  flex-shrink: 0;
}

.wa-icon-circle svg {
  width: 32px;
  height: 32px;
}

.wa-btn:hover .wa-icon-circle {
  transform: scale(1.08) rotate(5deg);
  background: var(--color-whatsapp-hover);
}

@media (max-width: 480px) {
  .whatsapp-floating-widget {
    bottom: 1.25rem;
    right: 1.25rem;
  }
  .wa-tooltip {
    display: none; /* En teléfonos compactos se muestra solo el icono para maximizar espacio */
  }
  .wa-icon-circle {
    width: 52px;
    height: 52px;
  }
  .wa-icon-circle svg {
    width: 28px;
    height: 28px;
  }
}

/* 19. ANIMACIONES ADICIONALES */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}