/* ==========================================================================
   GRANDE CONSTRUCCIONES — ESTILOS PRINCIPALES
   Dominio: www.grandeconstrucciones.com.ar
   One Page corporativa premium, accesible y ultra optimizada para mobile
   ========================================================================== */

/* ---------- Variables de Diseño ---------- */
:root {
  --font-sans: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  /* Paleta Corporativa */
  --c-primary: #F58521;        /* Naranja corporativo */
  --c-primary-hover: #e07415;  /* Naranja oscuro para hover */
  --c-primary-light: #fff2e6;  /* Naranja muy suave */
  --c-primary-alpha: rgba(245, 133, 33, 0.12);

  --c-dark: #1F1F22;           /* Gris carbón profundo */
  --c-dark-soft: #2B2B2E;      /* Carbón intermedio */
  --c-dark-elevated: #36363B;  /* Carbón para tarjetas oscuras */

  --c-gray-900: #1a1a1c;
  --c-gray-700: #515153;       /* Gris corporativo medio */
  --c-gray-500: #7b7e87;
  --c-gray-300: #d6d9e0;
  --c-gray-200: #e8ecf1;
  --c-gray-100: #f4f6f8;
  --c-gray-50:  #fafbfc;
  --c-white:    #ffffff;

  --c-wa:       #25D366;       /* WhatsApp */
  --c-wa-hover: #1eb956;
  --c-blue:     #0099DD;       /* Acento celeste patrio / técnico */

  --c-text:     #2c2d30;
  --c-text-muted: #646870;
  --c-text-light: #f4f6f8;
  --c-text-light-muted: #b4b7c0;

  --c-border:   rgba(0, 0, 0, 0.08);
  --c-border-dark: rgba(255, 255, 255, 0.12);

  /* Sombras */
  --shadow-sm:  0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md:  0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg:  0 16px 40px rgba(0, 0, 0, 0.12);
  --shadow-xl:  0 24px 60px rgba(0, 0, 0, 0.16);

  /* Espaciado */
  --container-max: 1240px;
  --container-pad: clamp(1rem, 4vw, 2rem);
  --section-pad-y: clamp(3.5rem, 8vw, 7rem);

  /* Bordes */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Transiciones */
  --t-fast: 160ms cubic-bezier(0.2, 0, 0, 1);
  --t-normal: 280ms cubic-bezier(0.2, 0, 0, 1);
  --t-slow: 420ms cubic-bezier(0.2, 0, 0, 1);
}

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

html {
  font-family: var(--font-sans);
  font-size: 16px;
  color: var(--c-text);
  background-color: var(--c-white);
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  max-width: 100%;
  width: 100%;
}

body {
  line-height: 1.6;
  overflow-x: hidden;
  max-width: 100%;
  width: 100%;
  position: relative;
}

#main {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

/* Accesibilidad: link para saltar al contenido */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--c-primary);
  color: var(--c-white);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 10000;
  transition: top var(--t-fast);
}
.skip-link:focus {
  top: 1rem;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

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

ul, ol {
  list-style: none;
}

/* Iconos SVG */
.i {
  display: inline-block;
  width: 1.25em;
  height: 1.25em;
  vertical-align: -0.2em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}
.i--lg {
  width: 2rem;
  height: 2rem;
}

/* Tipografía común */
h1, h2, h3, h4 {
  color: var(--c-dark);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.hl {
  color: var(--c-primary);
}

.lead {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  line-height: 1.6;
  color: var(--c-text-muted);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-primary);
  margin-bottom: 0.75rem;
}
.eyebrow--light {
  color: var(--c-primary);
}
.eyebrow .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--c-primary);
  display: inline-block;
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section {
  padding-block: var(--section-pad-y);
  position: relative;
  width: 100%;
  max-width: 100%;
  overflow-x: clip;
}

.section--soft {
  background-color: var(--c-gray-100);
}

.section--dark {
  background-color: var(--c-dark);
  color: var(--c-text-light);
}
.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--c-white);
}
.section--dark .lead {
  color: var(--c-text-light-muted);
}

.section-head {
  max-width: 720px;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.section-head--center {
  margin-inline: auto;
  text-align: center;
}
.section-head--row {
  max-width: 100%;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
}

.section-title {
  font-size: clamp(1.85rem, 3.8vw, 2.75rem);
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: clamp(1.5rem, 2.8vw, 2.1rem);
  margin-bottom: 0.75rem;
}

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-weight: 600;
  font-size: 0.98rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-full);
  min-height: 48px;
  transition: all var(--t-fast);
  white-space: nowrap;
  text-align: center;
}
.btn:hover {
  transform: translateY(-1px);
}
.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background-color: var(--c-primary);
  color: var(--c-white);
  box-shadow: 0 4px 16px rgba(245, 133, 33, 0.3);
}
.btn--primary:hover {
  background-color: var(--c-primary-hover);
  box-shadow: 0 6px 20px rgba(245, 133, 33, 0.4);
}

.btn--dark {
  background-color: var(--c-dark);
  color: var(--c-white);
}
.btn--dark:hover {
  background-color: var(--c-dark-soft);
}

.btn--ghost-light {
  background: rgba(255, 255, 255, 0.15);
  color: var(--c-white);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}
.btn--ghost-light:hover {
  background: rgba(255, 255, 255, 0.28);
}

.btn--outline {
  border: 2px solid var(--c-dark);
  color: var(--c-dark);
}
.btn--outline:hover {
  background-color: var(--c-dark);
  color: var(--c-white);
}

.btn--whatsapp {
  background-color: var(--c-wa);
  color: var(--c-white);
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.35);
}
.btn--whatsapp:hover {
  background-color: var(--c-wa-hover);
  color: var(--c-white);
}

.btn--sm {
  padding: 0.55rem 1.1rem;
  font-size: 0.88rem;
  min-height: 40px;
}

.btn--lg {
  padding: 1rem 2rem;
  font-size: 1.05rem;
}

.btn--block {
  width: 100%;
}

@media (max-width: 480px) {
  .btn {
    white-space: normal;
  }
  .btn--lg {
    padding: 0.85rem 1.35rem;
    font-size: 0.98rem;
  }
}

/* ==========================================================================
   HEADER & NAVEGACIÓN
   Implementa guías de state-aware-sticky-headers y scrollspy
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding-block: 1rem;
  background-color: rgba(31, 31, 34, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: padding var(--t-normal), background-color var(--t-normal), box-shadow var(--t-normal);
}

.site-header.is-scrolled {
  padding-block: 0.6rem;
  background-color: rgba(31, 31, 34, 0.96);
  box-shadow: var(--shadow-md);
  border-bottom-color: rgba(255, 255, 255, 0.12);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  z-index: 1010;
}
.brand-logo {
  height: 40px;
  width: auto;
  object-fit: contain;
}
.brand-logo--dark {
  display: none;
}

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

@media (min-width: 1024px) {
  .nav-desktop {
    display: block;
  }
  .nav-list {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  .nav-list a {
    display: inline-block;
    padding: 0.5rem 0.85rem;
    font-size: 0.92rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    border-radius: var(--radius-full);
    transition: color var(--t-fast), background-color var(--t-fast);
    position: relative;
  }
  .nav-list a:hover {
    color: var(--c-white);
    background-color: rgba(255, 255, 255, 0.08);
  }
  /* Active link (controlado por Scrollspy JS, nunca activo por defecto) */
  .nav-list a.is-active {
    color: var(--c-primary);
    background-color: rgba(245, 133, 33, 0.14);
    font-weight: 600;
  }
}

.header-cta {
  display: none;
}
@media (min-width: 768px) {
  .header-cta {
    display: inline-flex;
  }
}

/* Botón menú mobile */
.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  color: var(--c-white);
  z-index: 1010;
  margin-right: 0;
}
.menu-toggle .i {
  width: 1.75rem;
  height: 1.75rem;
}
.menu-toggle .i--close {
  display: none;
}
.menu-toggle[aria-expanded="true"] .i--open {
  display: none;
}
.menu-toggle[aria-expanded="true"] .i--close {
  display: block;
}

@media (min-width: 1024px) {
  .menu-toggle {
    display: none;
  }
}

/* Cajón de menú mobile */
.mobile-menu {
  position: fixed;
  inset: 0;
  background-color: rgba(26, 26, 28, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 1005;
  padding: 6rem 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow-y: auto;
  animation: fadeIn var(--t-fast) ease-out;
}
.mobile-menu[hidden] {
  display: none;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.mobile-nav a {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 1rem;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--c-white);
  border-radius: var(--radius-md);
  transition: background-color var(--t-fast), color var(--t-fast);
}
.mobile-nav a span {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--c-primary);
  font-variant-numeric: tabular-nums;
}
.mobile-nav a:hover,
.mobile-nav a:active {
  background-color: rgba(245, 133, 33, 0.15);
  color: var(--c-primary);
}

.mobile-menu-foot {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.mobile-menu-mail {
  text-align: center;
  font-size: 0.92rem;
  color: var(--c-text-light-muted);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   1. HERO (SLIDER ANIMADO DESLIZABLE)
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: var(--c-white);
  padding-top: 5.5rem;
  padding-bottom: 1.5rem;
  overflow: hidden;
  background-color: var(--c-dark);
}

.hero-slider {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 1;
  outline: none;
  cursor: grab;
  user-select: none;
}
.hero-slider:active {
  cursor: grabbing;
}

.hero-slider-track {
  display: flex;
  height: 100%;
  width: 100%;
  transition: transform 0.65s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: transform;
}

.hero-slide {
  flex: 0 0 100%;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: 100%;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding-top: clamp(6.5rem, 12vh, 8.5rem);
  padding-bottom: 15rem;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
@keyframes heroKenBurns {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.40);
  }
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1);
  transform-origin: center center;
  will-change: transform;
}
.hero-slide.is-active .hero-media img {
  animation: heroKenBurns 6.5s cubic-bezier(0.1, 0.4, 0.2, 1) forwards;
}
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(31, 31, 34, 0.78) 0%,
    rgba(31, 31, 34, 0.52) 40%,
    rgba(31, 31, 34, 0.94) 88%,
    rgba(31, 31, 34, 1) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 840px;
}

.hero-title {
  font-size: clamp(2rem, 5.2vw, 3.8rem);
  color: var(--c-white);
  line-height: 1.12;
  margin-bottom: 1.25rem;
  text-wrap: balance;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s 0.15s ease-out, transform 0.6s 0.15s ease-out;
}
.hero-slide.is-active .hero-title {
  opacity: 1;
  transform: translateY(0);
}

.hero-slide .eyebrow {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s 0.05s ease-out, transform 0.5s 0.05s ease-out;
}
.hero-slide.is-active .eyebrow {
  opacity: 1;
  transform: translateY(0);
}

.hero-lead {
  font-size: clamp(1.02rem, 1.8vw, 1.25rem);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 2rem;
  max-width: 680px;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s 0.25s ease-out, transform 0.6s 0.25s ease-out;
}
.hero-slide.is-active .hero-lead {
  opacity: 1;
  transform: translateY(0);
}
.hero-lead strong {
  color: var(--c-white);
  font-weight: 600;
}

.hero-actions {
  position: absolute;
  left: 0;
  right: 0;
  margin-inline: auto;
  bottom: calc(2 * clamp(34px, 4.2vh, 40px) + 6px);
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: 1rem;
  width: max-content;
  max-width: calc(100vw - 2rem);
  z-index: 20;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.45s 0.15s ease-out, transform 0.45s 0.15s ease-out;
}
.hero-slide.is-active .hero-actions {
  opacity: 1;
  transform: translateY(0);
}

/* Controles de navegación del slider */
.hero-slider-nav {
  position: absolute;
  top: 48%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(31, 31, 34, 0.65);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--t-fast);
  z-index: 10;
}
.hero-slider-nav:hover {
  background: var(--c-primary);
  border-color: var(--c-primary);
  transform: translateY(-50%) scale(1.08);
}
.hero-slider-prev {
  left: clamp(0.75rem, 2.5vw, 2.5rem);
}
.hero-slider-next {
  right: clamp(0.75rem, 2.5vw, 2.5rem);
}

@media (max-width: 768px) {
  .hero {
    min-height: max(100svh, 640px);
    padding-top: 0;
    padding-bottom: 1rem;
    justify-content: flex-end;
  }

  .hero-slide {
    justify-content: flex-start;
    padding-top: calc(76px + env(safe-area-inset-top, 0px) + 1.25rem);
    padding-bottom: 8.5rem;
    box-sizing: border-box;
  }

  .hero-content {
    max-width: 100%;
    padding-top: 0.25rem;
  }

  .hero-slide .eyebrow {
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    margin-bottom: 0.35rem;
  }

  .hero-title {
    font-size: clamp(1.55rem, 6vw, 2.15rem);
    line-height: 1.15;
    margin-bottom: 0.65rem;
    text-wrap: balance;
  }

  .hero-lead {
    font-size: 0.9rem;
    line-height: 1.45;
    margin-bottom: 1.15rem;
    max-width: 100%;
  }

  .hero-actions {
    position: absolute;
    left: 0;
    right: 0;
    margin-inline: auto;
    bottom: calc(2 * clamp(32px, 4vh, 38px) + 6px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: min(90vw, 340px);
    max-width: calc(100vw - 2rem);
    z-index: 20;
    transform: translateY(12px);
  }
  .hero-slide.is-active .hero-actions {
    opacity: 1;
    transform: translateY(0);
  }

  .hero-actions .btn {
    width: 100%;
    max-width: 320px;
    justify-content: center;
    text-align: center;
    padding: 0.65rem 1.15rem;
    font-size: 0.9rem;
    min-height: 42px;
    white-space: normal;
  }

  .hero-slider-nav {
    display: none;
  }

  .hero-slider-dots {
    left: 0;
    right: 0;
    margin-inline: auto;
    bottom: clamp(32px, 4vh, 38px);
    width: max-content;
    z-index: 25;
  }

  .hero-stats {
    padding: 1rem 0.85rem;
    gap: 0.65rem;
  }
  .hero-stats strong {
    font-size: 1.45rem;
  }
  .hero-stats span {
    font-size: 0.75rem;
  }
}

/* Indicadores / Dots del slider con barra de progreso */
.hero-slider-dots {
  position: absolute;
  left: 0;
  right: 0;
  margin-inline: auto;
  bottom: clamp(34px, 4.2vh, 40px);
  width: max-content;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.65rem;
  z-index: 25;
}
.hero-dot {
  width: 40px;
  height: 6px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.25);
  border: none;
  padding: 0;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: background-color var(--t-fast);
}
.hero-dot:hover {
  background: rgba(255, 255, 255, 0.45);
}
.hero-dot-bar {
  display: block;
  height: 100%;
  width: 0%;
  background-color: var(--c-primary);
  border-radius: var(--radius-full);
}
.hero-dot.is-active {
  background: rgba(255, 255, 255, 0.4);
}

@keyframes heroDotProgress {
  from { width: 0%; }
  to { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-dot.is-animating .hero-dot-bar {
    animation: none;
    width: 100%;
  }
  .hero-slider-track {
    transition: transform 0.01ms !important;
  }
  .hero-title, .hero-lead, .hero-actions, .hero-slide .eyebrow {
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  padding: 1.5rem;
  background: rgba(31, 31, 34, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
}
@media (min-width: 768px) {
  .hero-stats {
    grid-template-columns: repeat(4, 1fr);
    padding: 1.5rem 2.5rem;
  }
}
.hero-stats li {
  display: flex;
  flex-direction: column;
}
.hero-stats strong {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--c-primary);
  line-height: 1.1;
}
.hero-stats span {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 0.25rem;
}

.scroll-cue {
  display: none;
}
@media (min-width: 1024px) {
  .scroll-cue {
    display: block;
    position: absolute;
    bottom: 2rem;
    right: 3rem;
    z-index: 2;
    width: 28px;
    height: 46px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 14px;
  }
  .scroll-cue span {
    display: block;
    width: 4px;
    height: 8px;
    background: var(--c-primary);
    border-radius: 2px;
    margin: 6px auto 0;
    animation: scrollBounce 1.8s infinite ease-in-out;
  }
}
@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); opacity: 0.4; }
  50% { transform: translateY(12px); opacity: 1; }
}

/* ==========================================================================
   2. EMPRESA
   ========================================================================== */
.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}
@media (min-width: 960px) {
  .split {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

.split-text p {
  margin-bottom: 1.25rem;
  color: var(--c-text);
  line-height: 1.7;
}

.signature {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-top: 2rem;
  padding: 1.25rem 1.5rem;
  background-color: var(--c-primary-light);
  border-left: 4px solid var(--c-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
.signature .i {
  color: var(--c-primary);
  font-size: 1.5rem;
  margin-top: 0.15rem;
}
.signature p {
  margin-bottom: 0;
  font-size: 0.95rem;
  color: var(--c-dark);
}

/* Media cards destacadas con efecto zoom unificado (Empresa, Equipo y Obras) */
.split-media,
.team-photo,
.panel-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.split-media img,
.team-photo img,
.panel-media img {
  width: 100%;
  display: block;
  object-fit: cover;
  transition: transform var(--t-slow);
}
.split-media img,
.panel-media img {
  aspect-ratio: 4 / 3;
}
.team-photo img {
  aspect-ratio: 3 / 2;
}
.split-media:hover img,
.team-photo:hover img,
.panel-media:hover img {
  transform: scale(1.04);
}

.badge-year {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  background: rgba(31, 31, 34, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--c-white);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  flex-direction: column;
  z-index: 2;
  pointer-events: none;
  transition: transform var(--t-fast);
}
.split-media:hover .badge-year,
.team-photo:hover .badge-year,
.panel-media:hover .badge-year {
  transform: translateY(-2px);
}
.badge-year strong {
  font-size: 1.5rem;
  color: var(--c-primary);
  line-height: 1;
}
.badge-year span {
  font-size: 0.75rem;
  color: var(--c-text-light-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.2rem;
}

@media (max-width: 640px) {
  .badge-year {
    bottom: 0.85rem;
    left: 0.85rem;
    padding: 0.4rem 0.8rem;
  }
  .badge-year strong {
    font-size: 1.15rem;
  }
  .badge-year span {
    font-size: 0.68rem;
  }
}

/* Línea de tiempo */
.timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: clamp(3.5rem, 6vw, 6rem);
  padding-top: 1rem;
}
@media (min-width: 640px) {
  .timeline {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .timeline {
    grid-template-columns: repeat(4, 1fr);
    position: relative;
  }
  .timeline::before {
    content: "";
    position: absolute;
    top: 24px;
    left: 2rem;
    right: 2rem;
    height: 2px;
    background: linear-gradient(90deg, var(--c-primary), var(--c-gray-300));
    z-index: 0;
  }
}
.timeline li {
  position: relative;
  background: var(--c-gray-50);
  border: 1px solid var(--c-gray-200);
  padding: 1.75rem 1.5rem;
  border-radius: var(--radius-md);
  transition: transform var(--t-fast), box-shadow var(--t-fast);
  z-index: 1;
}
.timeline li:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--c-primary);
}
.tl-year {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-primary);
  background: var(--c-primary-light);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
}
.timeline h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}
.timeline p {
  font-size: 0.92rem;
  color: var(--c-text-muted);
  line-height: 1.5;
}

/* Proceso */
.process {
  margin-bottom: clamp(3.5rem, 6vw, 6rem);
}
.process-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@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-step {
  background: var(--c-white);
  border: 1px solid var(--c-gray-200);
  padding: 2rem 1.5rem;
  border-radius: var(--radius-lg);
  position: relative;
  transition: all var(--t-fast);
}
.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--c-primary);
}
.step-num {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--c-gray-200);
  line-height: 1;
}
.process-step .i {
  color: var(--c-primary);
  margin-bottom: 1.25rem;
}
.process-step h4 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}
.process-step p {
  font-size: 0.92rem;
  color: var(--c-text-muted);
  line-height: 1.55;
}

/* Valores */
.values-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
@media (min-width: 640px) {
  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .values-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.value {
  display: flex;
  flex-direction: column;
  padding: 1.75rem;
  background: var(--c-gray-50);
  border: 1px solid var(--c-gray-200);
  border-radius: var(--radius-md);
  transition: all var(--t-fast);
}
.value:hover {
  background: var(--c-white);
  border-color: var(--c-primary);
  box-shadow: var(--shadow-sm);
}
.value .i {
  color: var(--c-primary);
  font-size: 1.6rem;
  margin-bottom: 1rem;
}
.value h4 {
  font-size: 1.15rem;
  margin-bottom: 0.4rem;
}
.value p {
  font-size: 0.92rem;
  color: var(--c-text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   3. EQUIPO
   ========================================================================== */
.team-intro {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
  margin-bottom: 3.5rem;
}
@media (min-width: 960px) {
  .team-intro {
    grid-template-columns: 1fr 1fr;
  }
}

.team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 640px) {
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .team-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.member {
  background: var(--c-dark-soft);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 2rem 1.5rem;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  transition: transform var(--t-fast), border-color var(--t-fast);
}
.member:hover {
  transform: translateY(-4px);
  border-color: var(--c-primary);
}

.member-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--c-primary);
  color: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
}
.member-avatar--icon {
  background: rgba(255, 255, 255, 0.1);
  color: var(--c-primary);
}

.member h3 {
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}

.member-role {
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-primary);
  margin-bottom: 1rem;
}

.member p:last-child {
  font-size: 0.9rem;
  color: var(--c-text-light-muted);
  line-height: 1.55;
}

/* ==========================================================================
   4. OBRAS
   ========================================================================== */
.tabs {
  margin-top: 2rem;
}

.tab-list {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--c-gray-200);
  padding-bottom: 0.5rem;
  flex-wrap: wrap;
  max-width: 100%;
}
.tab {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.75rem;
  font-weight: 600;
  font-size: 1rem;
  color: var(--c-text-muted);
  border-radius: var(--radius-full);
  transition: all var(--t-fast);
  position: relative;
  max-width: 100%;
}
.tab:hover {
  color: var(--c-dark);
}
.tab[aria-selected="true"] {
  color: var(--c-white);
  background-color: var(--c-primary);
  box-shadow: 0 4px 14px rgba(245, 133, 33, 0.3);
}

@media (max-width: 640px) {
  .tab-list {
    gap: 0.35rem;
    margin-bottom: 1.5rem;
    border-bottom: none;
    padding-bottom: 0;
  }
  .tab {
    padding: 0.55rem 0.85rem;
    font-size: 0.85rem;
    gap: 0.35rem;
    flex: 1 1 auto;
    justify-content: center;
  }
  .tab .i {
    width: 1.05rem;
    height: 1.05rem;
  }
}

.tab-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
  background: var(--c-gray-50);
  border: 1px solid var(--c-gray-200);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 3rem);
  box-shadow: var(--shadow-sm);
  animation: fadeIn var(--t-normal) ease-out;
}
.tab-panel[hidden] {
  display: none;
}
@media (min-width: 960px) {
  .tab-panel {
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
  }
}

.panel-body h3 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  margin-bottom: 1rem;
}
.panel-body > p {
  color: var(--c-text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.checklist {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
  margin-bottom: 1.75rem;
}
.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--c-text);
}
.checklist .i {
  color: var(--c-primary);
  margin-top: 0.2rem;
}

.ideal {
  font-size: 0.9rem;
  background: var(--c-white);
  border: 1px solid var(--c-gray-200);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 2rem;
  color: var(--c-text-muted);
}
.ideal strong {
  color: var(--c-dark);
}

/* Tarjeta institucional complementaria */
.institutional {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 2rem;
  background: var(--c-white);
  border: 1px solid var(--c-gray-200);
  border-radius: var(--radius-lg);
}
@media (min-width: 768px) {
  .institutional {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}
.institutional > div {
  flex: 1;
}
.institutional .i {
  color: var(--c-blue);
}
.institutional h3 {
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}
.institutional p {
  font-size: 0.92rem;
  color: var(--c-text-muted);
}

/* ==========================================================================
   5. GALERÍA & LIGHTBOX
   Implementa guías de light-dismiss-a-dialog y optimize-image-priority
   ========================================================================== */
.filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}
.chip {
  padding: 0.55rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  background: var(--c-white);
  color: var(--c-text-muted);
  border: 1px solid var(--c-gray-200);
  transition: all var(--t-fast);
}
.chip:hover {
  border-color: var(--c-primary);
  color: var(--c-dark);
}
.chip.is-active {
  background: var(--c-dark);
  color: var(--c-white);
  border-color: var(--c-dark);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
@media (min-width: 640px) {
  .gallery {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }
}
@media (min-width: 1024px) {
  .gallery {
    grid-template-columns: repeat(4, 1fr);
  }
}

.g-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  transition: opacity var(--t-fast), transform var(--t-fast);
}
.g-item.is-hidden {
  display: none;
}
.g-item--tall {
  grid-row: span 1;
}
@media (min-width: 640px) {
  .g-item--tall {
    grid-row: span 2;
  }
}

.g-btn {
  width: 100%;
  height: 100%;
  display: block;
  position: relative;
  overflow: hidden;
  text-align: left;
  border-radius: inherit;
}
.g-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}
.g-btn:hover img,
.g-btn:focus-visible img {
  transform: scale(1.06);
}

.g-cap {
  position: absolute;
  bottom: 0.75rem;
  left: 0.75rem;
  background: rgba(31, 31, 34, 0.85);
  backdrop-filter: blur(8px);
  color: var(--c-white);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.g-zoom {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: rgba(31, 31, 34, 0.85);
  color: var(--c-white);
  padding: 0.4rem;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  opacity: 0;
  transform: scale(0.8);
  transition: all var(--t-fast);
}
.g-btn:hover .g-zoom,
.g-btn:focus-visible .g-zoom {
  opacity: 1;
  transform: scale(1);
}

/* Lightbox Modal (<dialog closedby="any">) */
.lightbox {
  border: none;
  background: transparent;
  padding: 0;
  max-width: 94vw;
  max-height: 94vh;
  margin: auto;
  color: var(--c-white);
  overflow: visible;
}
.lightbox::backdrop {
  background-color: rgba(10, 10, 12, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.lightbox[open] {
  animation: zoomIn var(--t-normal) ease-out;
}

@keyframes zoomIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.lb-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-height: 85vh;
}
.lb-figure img {
  max-width: 90vw;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
}
.lb-figure figcaption {
  margin-top: 1rem;
  font-size: 1rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  text-align: center;
}

.lb-btn {
  position: fixed;
  background: rgba(31, 31, 34, 0.8);
  color: var(--c-white);
  border: 1px solid rgba(255, 255, 255, 0.2);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
  transition: all var(--t-fast);
  z-index: 10;
}
.lb-btn:hover {
  background: var(--c-primary);
  border-color: var(--c-primary);
}
.lb-close {
  top: 1.5rem;
  right: 1.5rem;
}
.lb-prev {
  top: 50%;
  left: 1.5rem;
  transform: translateY(-50%);
}
.lb-next {
  top: 50%;
  right: 1.5rem;
  transform: translateY(-50%);
}
.lb-count {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(31, 31, 34, 0.8);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   6. TESTIMONIOS
   ========================================================================== */
.carousel-nav {
  display: flex;
  gap: 0.5rem;
}
.round-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--c-gray-300);
  background: var(--c-white);
  color: var(--c-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--t-fast);
}
.round-btn:hover {
  background: var(--c-primary);
  color: var(--c-white);
  border-color: var(--c-primary);
}

.testimonials {
  position: relative;
  display: flex;
  gap: 1.5rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding-block: 0.5rem 1.5rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.testimonials::-webkit-scrollbar {
  display: none;
}

.t-card {
  flex: 0 0 min(86vw, 360px);
  max-width: calc(100vw - 2rem);
  box-sizing: border-box;
  scroll-snap-align: start;
  background: var(--c-white);
  border: 1px solid var(--c-gray-200);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition: transform var(--t-fast), box-shadow var(--t-fast);
}
@media (max-width: 640px) {
  .t-card {
    padding: 1.5rem 1.25rem;
  }
}
.t-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--c-primary);
}

.stars {
  display: flex;
  gap: 0.25rem;
  color: #ffb703;
  margin-bottom: 1.25rem;
}
.stars .i {
  width: 1.1rem;
  height: 1.1rem;
}

.t-card blockquote p {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--c-text);
  margin-bottom: 1.75rem;
  font-style: normal;
}

.t-card figcaption {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}
.t-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--c-primary-light);
  color: var(--c-primary);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
}
.t-card figcaption strong {
  display: block;
  font-size: 0.98rem;
  color: var(--c-dark);
}
.t-card figcaption small {
  display: block;
  font-size: 0.8rem;
  color: var(--c-text-muted);
}

.dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
}
.dots button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--c-gray-300);
  transition: all var(--t-fast);
  padding: 0;
}
.dots button.is-active {
  background: var(--c-primary);
  width: 28px;
  border-radius: var(--radius-full);
}

/* ==========================================================================
   7. PREGUNTAS FRECUENTES (FAQ)
   ========================================================================== */
#preguntas {
  background-color: var(--c-gray-100);
  position: relative;
  z-index: 2;
}

.faq-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(2rem, 3.5vw, 3rem);
  width: 100%;
}

.faq-aside {
  text-align: center;
  max-width: 720px;
  width: 100%;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.faq-aside .eyebrow {
  margin-bottom: 0.5rem;
}
.faq-aside .section-title {
  margin-bottom: 0.75rem;
  font-size: clamp(1.6rem, 4.5vw, 2.5rem);
  text-wrap: balance;
}
.faq-aside .lead {
  margin-bottom: 1.25rem;
  max-width: 580px;
  text-wrap: pretty;
}
.faq-aside .btn {
  margin-top: 0;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
  max-width: 860px;
  margin-inline: auto;
  position: relative;
  z-index: 3;
}

details[name="faq"] {
  background: var(--c-white);
  border: 1px solid var(--c-gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--t-fast);
  position: relative;
  z-index: 3;
}
details[name="faq"]:hover {
  border-color: var(--c-primary);
}
details[name="faq"][open] {
  box-shadow: var(--shadow-sm);
  border-color: var(--c-primary);
}

summary {
  padding: 1.25rem 1.5rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--c-dark);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  list-style: none;
  user-select: none;
}
summary::-webkit-details-marker {
  display: none;
}
summary .i {
  color: var(--c-primary);
  transition: transform var(--t-fast);
}
details[open] summary .i {
  transform: rotate(45deg);
}

.faq-body {
  padding: 0 1.5rem 1.5rem;
  color: var(--c-text-muted);
  line-height: 1.65;
  font-size: 0.95rem;
}
.faq-body a {
  color: var(--c-primary);
  text-decoration: underline;
  font-weight: 500;
}
@media (max-width: 640px) {
  summary {
    padding: 1.1rem 1.15rem;
    font-size: 0.98rem;
  }
  .faq-body {
    padding: 0 1.15rem 1.25rem;
  }
}

/* ==========================================================================
   8. COTIZADOR INTERACTIVO (Multi-step con validación moderna)
   Implementa guías de forms y validate-input-after-interaction (:user-invalid)
   ========================================================================== */
.quote-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
@media (min-width: 960px) {
  .quote-layout {
    grid-template-columns: 0.8fr 1.2fr;
    gap: 4rem;
    align-items: flex-start;
  }
}

.quote-aside {
  position: static;
}
@media (min-width: 960px) {
  .quote-aside {
    position: sticky;
    top: 100px;
    align-self: flex-start;
  }
}
.quote-perks {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.quote-perks li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.98rem;
  color: var(--c-text-light);
}
.quote-perks .i {
  color: var(--c-primary);
}

.quote-card {
  background: var(--c-dark-soft);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 2.75rem);
  box-shadow: var(--shadow-xl);
}

.q-progress {
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 0.75rem;
}
.q-progress span {
  display: block;
  height: 100%;
  width: 25%;
  background: var(--c-primary);
  border-radius: var(--radius-full);
  transition: width var(--t-normal);
}

.q-step-label {
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-primary);
  margin-bottom: 1.5rem;
}

.q-step {
  border: none;
  margin: 0;
  padding: 0;
  animation: fadeIn var(--t-fast) ease-out;
}
.q-step[hidden] {
  display: none;
}
.q-step legend {
  font-size: clamp(1.2rem, 2.5vw, 1.5rem);
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 1.5rem;
}

.opt-grid {
  display: grid;
  grid-template-columns: 1fr;
  grid-auto-rows: 1fr;
  gap: 0.85rem;
  align-items: stretch;
}
@media (min-width: 500px) {
  .opt-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 1fr;
  }
}

.opt {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
  cursor: pointer;
}
.opt input {
  position: absolute;
  clip-path: inset(50%);
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.opt span {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  justify-content: center;
  flex: 1;
  width: 100%;
  height: 100%;
  padding: 1.25rem 1rem;
  border-radius: var(--radius-md);
  background: var(--c-dark-elevated);
  border: 2px solid transparent;
  color: var(--c-white);
  font-weight: 600;
  font-size: 1.02rem;
  line-height: 1.35;
  transition: all var(--t-fast);
  min-height: 120px;
  box-sizing: border-box;
}
.opt span .i {
  color: var(--c-primary);
  width: 1.85rem;
  height: 1.85rem;
  margin-bottom: 0.5rem;
  flex-shrink: 0;
}
.opt span small {
  font-size: 0.82rem;
  color: var(--c-text-light-muted);
  font-weight: 400;
  margin-top: 0.35rem;
  display: block;
}
.opt input:checked + span {
  border-color: var(--c-primary);
  background: rgba(245, 133, 33, 0.12);
}
.opt:hover span {
  border-color: rgba(245, 133, 33, 0.4);
}
.opt input:focus-visible + span {
  outline: 2px solid var(--c-primary);
  outline-offset: 2px;
}

.q-error {
  min-height: 1.25rem;
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: #ff6b6b;
  font-weight: 500;
}

/* Campos de Formulario */
.field {
  margin-bottom: 1.25rem;
}
.field-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 540px) {
  .field-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

label, .field .label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--c-text);
}
.section--dark label,
.section--dark .field .label {
  color: var(--c-white);
}

.req {
  color: var(--c-primary);
}
.opt-label {
  font-weight: 400;
  font-size: 0.8rem;
  color: var(--c-text-muted);
}
.section--dark .opt-label {
  color: var(--c-text-light-muted);
}

.hint {
  display: block;
  font-size: 0.8rem;
  color: var(--c-text-light-muted);
  margin-top: 0.35rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
textarea,
select {
  width: 100%;
  padding: 0.85rem 1.1rem;
  font-size: 1rem;
  min-height: 48px;
  background: var(--c-white);
  border: 1.5px solid var(--c-gray-300);
  border-radius: var(--radius-sm);
  color: var(--c-text);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.section--dark input[type="text"],
.section--dark input[type="email"],
.section--dark input[type="tel"],
.section--dark textarea,
.section--dark select {
  background-color: var(--c-dark-elevated);
  border-color: rgba(255, 255, 255, 0.15);
  color: var(--c-white);
}
.section--dark select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m4 6 4 4 4-4'/%3E%3C/svg%3E");
}
.section--dark select option {
  background-color: var(--c-dark-soft);
  color: var(--c-white);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(245, 133, 33, 0.2);
}

/* Guía validate-input-after-interaction (:user-invalid) */
input:user-invalid,
textarea:user-invalid,
input.user-invalid-fallback,
textarea.user-invalid-fallback {
  border-color: #ff6b6b !important;
  background-color: rgba(255, 107, 107, 0.08) !important;
}

.err {
  display: none;
  font-size: 0.82rem;
  color: #ff6b6b;
  margin-top: 0.35rem;
  font-weight: 500;
}
input:user-invalid + .err,
textarea:user-invalid + .err,
input.user-invalid-fallback + .err,
textarea.user-invalid-fallback + .err {
  display: block;
}

input:user-valid,
textarea:user-valid {
  border-color: #2ec4b6;
}

/* Range input */
input[type="range"] {
  width: 100%;
  height: 8px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.15);
  accent-color: var(--c-primary);
  outline: none;
  cursor: pointer;
  margin-block: 0.5rem;
}
#qM2Out {
  font-weight: 700;
  color: var(--c-primary);
  font-size: 1.05rem;
}

/* Pill group (radios) */
.pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.pill {
  position: relative;
  cursor: pointer;
}
.pill input {
  position: absolute;
  clip-path: inset(50%);
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.pill span {
  display: inline-block;
  padding: 0.45rem 1rem;
  background: var(--c-dark-elevated);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--c-white);
  transition: all var(--t-fast);
}
.pill input:checked + span {
  background: var(--c-primary);
  border-color: var(--c-primary);
}

.select-wrap {
  position: relative;
}
select {
  appearance: none;
  padding-right: 2.5rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%23515153' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m4 6 4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
}

/* Botones de navegación del cotizador */
.q-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.q-nav-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}
.q-nav .btn {
  min-width: 130px;
}
.btn:disabled,
.btn[disabled],
.btn.is-disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
  box-shadow: none !important;
  transform: none !important;
}
@media (max-width: 600px) {
  .q-nav {
    flex-direction: column;
    align-items: stretch;
  }
  .q-nav-actions {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    width: 100%;
  }
  .q-nav .btn {
    width: 100%;
  }
}

/* Pantalla de éxito cotizador */
.q-done {
  text-align: center;
  padding: 1rem 0;
  animation: fadeIn var(--t-fast) ease-out;
}
.q-done[hidden] {
  display: none;
}
.q-done-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--c-primary);
  color: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  box-shadow: 0 8px 24px rgba(245, 133, 33, 0.4);
}
.q-done-icon .i {
  width: 2.25rem;
  height: 2.25rem;
}
.q-done h3 {
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
}
.q-done > p {
  color: var(--c-text-light-muted);
  max-width: 520px;
  margin: 0 auto 1.75rem;
}

.q-summary {
  background: var(--c-dark-elevated);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  max-width: 500px;
  margin: 0 auto 2rem;
  text-align: left;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem 1rem;
}
.q-summary dt {
  font-size: 0.8rem;
  color: var(--c-text-light-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.q-summary dd {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c-white);
}

.q-done-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 420px;
  margin-inline: auto;
}
@media (min-width: 480px) {
  .q-done-actions {
    flex-direction: row;
    justify-content: center;
  }
}

/* Honeypot anti-spam */
.hp {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

/* ==========================================================================
   9. CONTACTO
   ========================================================================== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
@media (min-width: 960px) {
  .contact-layout {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 4rem;
  }
}

.contact-cards {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 2rem 0;
}
.c-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  background: var(--c-gray-50);
  border: 1px solid var(--c-gray-200);
  border-radius: var(--radius-md);
  transition: all var(--t-fast);
}
a.c-card:hover {
  background: var(--c-white);
  border-color: var(--c-primary);
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}
.c-ico {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--c-primary-light);
  color: var(--c-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.c-ico--wa {
  background: rgba(37, 211, 102, 0.15);
  color: var(--c-wa);
}
.c-card small {
  display: block;
  font-size: 0.78rem;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.c-card strong {
  display: block;
  font-size: 1rem;
  color: var(--c-dark);
}

.socials {
  display: flex;
  gap: 0.75rem;
}
.social {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--c-gray-100);
  border: 1px solid var(--c-gray-200);
  color: var(--c-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--t-fast);
}
.social:hover {
  background: var(--c-primary);
  color: var(--c-white);
  border-color: var(--c-primary);
  transform: translateY(-2px);
}

.contact-form {
  background: var(--c-gray-50);
  border: 1px solid var(--c-gray-200);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  box-shadow: var(--shadow-sm);
}
.contact-form h3 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}
.form-note {
  font-size: 0.8rem;
  color: var(--c-text-muted);
  text-align: center;
  margin-top: 1rem;
}
.form-status {
  margin-top: 1rem;
  font-size: 0.92rem;
  font-weight: 500;
  text-align: center;
  min-height: 1.25rem;
}
.form-status.is-success {
  color: #2ec4b6;
}
.form-status.is-error {
  color: #ff6b6b;
}

/* Banda de llamado a la acción final */
.cta-band {
  background: linear-gradient(135deg, var(--c-primary), #ff9838);
  color: var(--c-white);
  padding-block: clamp(2.5rem, 5vw, 4rem);
}
.cta-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
  text-align: center;
}
@media (min-width: 768px) {
  .cta-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}
.cta-band p {
  font-size: clamp(1.3rem, 2.5vw, 1.85rem);
  line-height: 1.3;
}
@media (max-width: 768px) {
  .cta-inner .btn {
    width: 100%;
    max-width: 380px;
    white-space: normal;
  }
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background: var(--c-gray-900);
  color: var(--c-text-light-muted);
  padding-top: clamp(3rem, 6vw, 5rem);
  padding-bottom: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3.5rem;
}
@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
  }
}

.footer-brand img {
  height: 38px;
  width: auto;
  margin-bottom: 1.25rem;
}
.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-nav h4 {
  font-size: 0.95rem;
  color: var(--c-white);
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.footer-nav a {
  font-size: 0.9rem;
  transition: color var(--t-fast);
}
.footer-nav a:hover {
  color: var(--c-primary);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  font-size: 0.85rem;
}
@media (min-width: 640px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.to-top {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--c-text-light);
  font-weight: 500;
  transition: color var(--t-fast);
}
.to-top .i {
  transform: rotate(-90deg);
}
.to-top:hover {
  color: var(--c-primary);
}

/* ==========================================================================
   BOTÓN FLOTANTE "VOLVER ARRIBA" (Izquierda)
   ========================================================================== */
.to-top-fab {
  position: fixed;
  bottom: clamp(1.25rem, 3vw, 1.75rem);
  left: clamp(1.25rem, 3vw, 1.75rem);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(31, 31, 34, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  z-index: 980;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(16px);
  transition: opacity var(--t-normal), transform var(--t-normal), visibility var(--t-normal), background-color var(--t-fast), border-color var(--t-fast), box-shadow var(--t-fast);
}
.to-top-fab.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}
.to-top-fab .i {
  width: 1.45rem;
  height: 1.45rem;
  transition: transform var(--t-fast);
}
.to-top-fab:hover,
.to-top-fab:focus-visible {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: var(--c-white);
  transform: translateY(-4px) scale(1.06);
  box-shadow: 0 12px 28px rgba(245, 133, 33, 0.5);
}
.to-top-fab:hover .i,
.to-top-fab:focus-visible .i {
  transform: translateY(-2px);
}

@media (max-width: 640px) {
  .to-top-fab {
    width: 48px;
    height: 48px;
    bottom: 1.25rem;
    left: 1rem;
  }
}

/* ==========================================================================
   BOTÓN FLOTANTE WHATSAPP (Derecha)
   ========================================================================== */
.wa-fab {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: var(--c-wa);
  color: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.45);
  z-index: 990;
  transition: transform var(--t-fast), box-shadow var(--t-fast);
}
.wa-fab .i {
  width: 2rem;
  height: 2rem;
}
.wa-fab:hover {
  transform: scale(1.08);
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.6);
}
.wa-fab::before {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--c-wa);
  opacity: 0.7;
  animation: pulse 2.2s infinite;
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 0.7; }
  70% { transform: scale(1.3); opacity: 0; }
  100% { transform: scale(1.3); opacity: 0; }
}

/* ==========================================================================
   ANIMACIONES AL SCROLL (Scroll Reveal)
   ========================================================================== */
.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.js .reveal {
  opacity: 0;
  transform: translateY(24px);
}
.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}