/* ============================================================
   FierroEstructuras Mzo — Hoja de estilos principal
   Paleta y tipografía conforme a la guía de branding
   ============================================================ */

:root {
  --color-primary: #003B73;
  --color-primary-dark: #002A52;
  --color-secondary: #252A2E;
  --color-text: #33383D;
  --color-muted: #6B7280;
  --color-bg: #F7F8F8;
  --color-bg-alt: #ECEFF1;
  --color-accent: #E96B1C;
  --color-white: #FFFFFF;
  --color-whatsapp: #1FA855;

  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.08);
  --shadow-card: 0 8px 24px rgba(37, 42, 46, 0.10);

  --container: 1200px;
  --section-y: 100px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
}

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

.coti {
  color: var(--color-bg) !important;
}

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

ul,
ol {
  list-style: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-secondary);
  line-height: 1.2;
}

h1 {
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 800;
}

h2 {
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
}

h3 {
  font-size: clamp(20px, 2vw, 24px);
  font-weight: 700;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--section-y) 0;
}

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

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

.grid {
  display: grid;
  gap: 28px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.section-head {
  max-width: 760px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-head h2 {
  margin: 14px 0 16px;
}

.section-head p {
  color: var(--color-muted);
  font-size: 18px;
}

/* ---------- Etiquetas / tags ---------- */
.tag {
  display: inline-block;
  background-color: var(--color-bg-alt);
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 999px;
}

.tag-sm {
  font-size: 11px;
  padding: 4px 10px;
}

.tag-accent {
  background-color: rgba(233, 107, 28, 0.12);
  color: var(--color-accent);
}

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  padding: 14px 28px;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

/* Destello al pasar el cursor en botones sólidos */
.btn-primary,
.btn-accent,
.btn-whatsapp {
  position: relative;
  overflow: hidden;
}

.btn-primary::before,
.btn-accent::before,
.btn-whatsapp::before {
  content: "";
  position: absolute;
  top: 0;
  left: -80%;
  width: 50%;
  height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: skewX(-20deg);
  transition: left 0.5s ease;
}

.btn-primary:hover::before,
.btn-accent:hover::before,
.btn-whatsapp:hover::before {
  left: 130%;
}

.btn svg {
  width: 20px;
  height: 20px;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
}

.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-secondary);
  border-color: var(--color-secondary);
}

.btn-secondary:hover {
  background-color: var(--color-bg-alt);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
  padding: 10px 20px;
  font-size: 14px;
}

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

.btn-accent {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.btn-accent:hover {
  background-color: #C95812;
}

.btn-whatsapp {
  background-color: var(--color-whatsapp);
  color: var(--color-white);
}

.btn-whatsapp:hover {
  background-color: #178B45;
}

.btn-block {
  width: 100%;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ---------- Preloader ---------- */
#preloader {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: grid;
  place-items: center;
  background-color: var(--color-secondary);
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

#preloader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

.preloader-content img {
  width: 84px;
  height: 84px;
  object-fit: contain;
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  padding: 10px;
  animation: preloader-pulse 1.4s ease-in-out infinite;
}

.preloader-content p {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
}

.preloader-bar {
  width: 180px;
  height: 4px;
  border-radius: 999px;
  background-color: rgba(255, 255, 255, 0.15);
  overflow: hidden;
}

.preloader-bar span {
  display: block;
  height: 100%;
  width: 40%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  animation: preloader-slide 1.1s ease-in-out infinite;
}

@keyframes preloader-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}

@keyframes preloader-slide {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(420%); }
}

/* ---------- Barra de progreso de scroll ---------- */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 200;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-bg-alt);
  transition: box-shadow 0.25s ease;
}

.site-header.scrolled {
  box-shadow: 0 6px 24px rgba(37, 42, 46, 0.12);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-logo {
  width: 46px;
  height: 46px;
  object-fit: contain;
  background-color: var(--color-white);
  border-radius: var(--radius-sm);
  padding: 3px;
}

.brand-text {
  font-family: var(--font-heading);
  font-size: 18px;
  color: var(--color-secondary);
  line-height: 1.1;
}

.brand-text strong {
  font-weight: 800;
}

.brand-text em {
  font-style: normal;
  color: var(--color-primary);
  font-weight: 700;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.main-nav > a {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  transition: color 0.2s ease;
}

.main-nav > a:hover {
  color: var(--color-primary);
}

.main-nav > a.active {
  color: var(--color-primary);
  font-weight: 700;
}

.btn-nav {
  padding: 10px 22px;
  font-size: 14px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-toggle {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 8px 16px;
  background: none;
  border: 1.5px solid var(--color-secondary);
  border-radius: 999px;
  color: var(--color-secondary);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.lang-toggle:hover {
  background-color: var(--color-secondary);
  color: var(--color-white);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 1px solid var(--color-bg-alt);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background-color: var(--color-secondary);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
/* Video de fondo con overlay difuminado y contenido centrado. */
.hero {
  position: relative;
  min-height: calc(100vh - 76px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 0;
  text-align: center;
  overflow: hidden;
}

.hero-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(13, 20, 28, 0.74), rgba(0, 33, 64, 0.82));
  z-index: 1;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 940px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 28px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: rgba(13, 20, 28, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 9px 18px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}

.hero-badge svg {
  width: 16px;
  height: 16px;
  color: var(--color-accent);
}

.hero h1 {
  color: var(--color-white);
  text-transform: uppercase;
  font-size: clamp(32px, 4.8vw, 56px);
  letter-spacing: 0.01em;
  margin-bottom: 20px;
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

.hero-accent {
  color: var(--color-accent);
}

.hero-sub {
  max-width: 720px;
  margin: 0 auto 28px;
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.88);
}

.hero-actions {
  justify-content: center;
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.65);
}

.btn-ghost:hover {
  background-color: rgba(255, 255, 255, 0.12);
  border-color: var(--color-white);
}

.hero-motto {
  display: inline-block;
  margin-top: 26px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.85);
  border-top: 2px solid var(--color-accent);
  padding-top: 12px;
}

.hero-stat {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 36px;
  padding: 18px 24px;
  background: rgba(13, 20, 28, 0.45);
  border: 1px solid rgba(233, 107, 28, 0.35);
  border-radius: 999px;
  width: fit-content;
  backdrop-filter: blur(4px);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
}

.stat-label {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.82);
}

/* ---------- Marquee de servicios ---------- */
.marquee {
  background-color: var(--color-secondary);
  overflow: hidden;
  padding: 16px 0;
  border-top: 3px solid var(--color-accent);
}

.marquee-track {
  display: flex;
  align-items: center;
  gap: 28px;
  width: max-content;
  animation: marquee-scroll 28s linear infinite;
}

.marquee:hover .marquee-track {
  animation-play-state: paused;
}

.marquee-track span {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  white-space: nowrap;
}

.marquee-track i {
  font-style: normal;
  font-size: 10px;
  color: var(--color-accent);
}

@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- Animaciones de aparición (scroll reveal) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  will-change: opacity, transform;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Botón volver arriba ---------- */
#back-to-top {
  position: fixed;
  right: 22px;
  bottom: 92px;
  z-index: 90;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: none;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-white);
  cursor: pointer;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.25);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, background-color 0.2s ease;
}

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

#back-to-top:hover {
  background-color: var(--color-primary-dark);
}

#back-to-top svg {
  width: 20px;
  height: 20px;
}

/* ---------- Marcos de imagen ---------- */
/* Tratamiento de marca: tono frío, contraste medio-alto
   y overlay azul navy sutil sobre la fotografía. */
.img-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  background-color: var(--color-secondary);
}

.img-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.06);
}

.img-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(0, 59, 115, 0.14), rgba(37, 42, 46, 0.10));
  pointer-events: none;
}

.img-hero {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

/* ---------- Intro corta ---------- */
.intro-strip {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-bg-alt);
  padding: 48px 0;
}

.intro-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.intro-title {
  font-size: 26px;
  margin-bottom: 10px;
}

.intro-side {
  border-left: 3px solid var(--color-primary);
  padding-left: 24px;
}

.intro-motto {
  margin-top: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-primary);
}

/* ---------- Quiénes somos ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: 48px;
  align-items: center;
}

.about-text h2 {
  margin: 14px 0 18px;
}

.about-text p {
  margin-bottom: 14px;
}

.about-side {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.about-photo {
  aspect-ratio: 4 / 5;
  box-shadow: var(--shadow-card);
}

.about-callout {
  background-color: var(--color-secondary);
  color: var(--color-white);
  border-radius: var(--radius-md);
  padding: 40px 32px;
  box-shadow: var(--shadow-card);
}

.about-callout p {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
}

/* ---------- Sección oscura REPSE ---------- */
.section-dark {
  background-color: var(--color-secondary);
}

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

.section-dark p {
  color: rgba(255, 255, 255, 0.78);
}

.repse-intro {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 56px;
}

.repse-photo {
  aspect-ratio: 4 / 3;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.repse-head {
  text-align: left;
}

.repse-head h2 {
  margin: 22px 0 16px;
}

.repse-head p {
  margin-bottom: 12px;
}

.badge-repse {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: rgba(0, 59, 115, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 10px 20px;
  border-radius: 999px;
}

.badge-repse svg {
  width: 20px;
  height: 20px;
}

.benefit {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--radius-md);
  padding: 28px 24px;
}

.benefit h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.benefit p {
  font-size: 15px;
}

.benefit-icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background-color: rgba(0, 59, 115, 0.12);
  color: var(--color-primary);
  margin-bottom: 18px;
}

.section-dark .benefit-icon {
  background-color: rgba(255, 255, 255, 0.10);
  color: var(--color-white);
}

.benefit-icon svg {
  width: 26px;
  height: 26px;
}

.repse-note {
  margin-top: 40px;
  text-align: center;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
}

/* ---------- Tarjetas de servicio ---------- */
.card {
  background-color: var(--color-white);
  border: 1px solid var(--color-bg-alt);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.service-card {
  display: flex;
  flex-direction: column;
}

.card-img {
  aspect-ratio: 16 / 9;
  border-radius: 0;
}

.card-img img {
  transition: transform 0.35s ease;
}

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

.card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 26px 24px 28px;
}

.card-body h3 {
  margin: 12px 0 10px;
}

.card-body > p {
  font-size: 15px;
  margin-bottom: 14px;
}

.card-body ul {
  margin-bottom: 16px;
}

.card-body ul li {
  position: relative;
  font-size: 14.5px;
  color: var(--color-muted);
  padding-left: 22px;
  margin-bottom: 6px;
}

.card-body ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 2px;
  background-color: var(--color-primary);
}

.card-quote {
  margin-top: auto;
  margin-bottom: 18px;
  font-style: italic;
  font-size: 14.5px;
  color: var(--color-primary);
  border-left: 3px solid var(--color-accent);
  padding-left: 12px;
}

.service-card .btn {
  align-self: flex-start;
}

/* ---------- Niveles de complejidad ---------- */
.level-card {
  padding: 30px 26px;
  position: relative;
}

.level-num {
  font-family: var(--font-heading);
  font-size: 40px;
  font-weight: 800;
  color: var(--color-bg-alt);
  line-height: 1;
}

.level-card h3 {
  font-size: 19px;
  margin: 10px 0 14px;
}

.level-card ul li {
  position: relative;
  font-size: 14.5px;
  color: var(--color-muted);
  padding-left: 20px;
  margin-bottom: 6px;
}

.level-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background-color: var(--color-primary);
}

.level-premium {
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
}

.level-premium h3 {
  color: var(--color-white);
}

.level-premium .level-num {
  color: rgba(255, 255, 255, 0.15);
}

.level-premium ul li {
  color: rgba(255, 255, 255, 0.75);
}

.level-premium ul li::before {
  background-color: var(--color-accent);
}

/* ---------- Sectores ---------- */
.sector-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  max-width: 900px;
  margin: 0 auto;
}

.sector-list li {
  background-color: var(--color-white);
  border: 1px solid var(--color-bg-alt);
  border-radius: 999px;
  padding: 10px 22px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-secondary);
  box-shadow: 0 2px 8px rgba(37, 42, 46, 0.05);
}

/* ---------- Ventajas ---------- */
.advantage {
  background-color: var(--color-white);
  border: 1px solid var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  box-shadow: var(--shadow-card);
}

.advantage h3 {
  font-size: 19px;
  margin-bottom: 10px;
}

.advantage p {
  font-size: 15px;
  color: var(--color-muted);
}

/* ---------- Proceso ---------- */
.process {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  counter-reset: step;
}

.process-step {
  background-color: var(--color-white);
  border: 1px solid var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
}

.step-num {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 16px;
}

.process-step h3 {
  font-size: 19px;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 15px;
  color: var(--color-muted);
}

/* ---------- Galería ---------- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.gallery-item {
  aspect-ratio: 4 / 3;
  box-shadow: var(--shadow-card);
}

.gallery-item img {
  transition: transform 0.35s ease;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: 30px 18px 14px;
  background: linear-gradient(to top, rgba(37, 42, 46, 0.88), transparent);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 14.5px;
  font-weight: 700;
}

/* Recorte bajo para fotos con rótulos en la parte superior */
.crop-low {
  object-position: center 70%;
}

/* ---------- Misión / Visión / Valores ---------- */
.mv-grid {
  margin-bottom: 40px;
}

.mv-card {
  padding: 34px 30px;
}

.mv-card h3 {
  color: var(--color-primary);
  margin-bottom: 12px;
}

.values {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.value-item {
  background-color: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: 22px 20px;
}

.value-item h4 {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.value-item p {
  font-size: 14px;
  color: var(--color-text);
}

/* ---------- CTA ---------- */
.cta-band {
  background:
    linear-gradient(135deg, var(--color-primary) 0%, #00284E 100%);
  padding: 80px 0;
}

.cta-inner {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 48px;
  align-items: center;
}

.cta-band h2 {
  color: var(--color-white);
  margin-bottom: 14px;
}

.cta-band p {
  color: rgba(255, 255, 255, 0.82);
}

.cta-inner .btn-group {
  justify-content: flex-end;
}

/* ---------- Contacto ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: start;
}

.contact-form {
  background-color: var(--color-white);
  border: 1px solid var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: 34px 30px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 7px;
  font-family: var(--font-heading);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--color-secondary);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-bg-alt);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 59, 115, 0.12);
}

.contact-form textarea {
  resize: vertical;
}

.file-label input {
  padding: 10px;
}

.contact-info {
  background-color: var(--color-secondary);
  border-radius: var(--radius-md);
  padding: 34px 30px;
  box-shadow: var(--shadow-card);
}

.contact-info h3 {
  color: var(--color-white);
  margin-bottom: 22px;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 28px;
}

.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 15px;
}

.contact-list li svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  color: var(--color-white);
  margin-top: 2px;
}

.contact-list strong {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 14px;
}

.contact-list a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: underline;
}

/* ---------- Footer ---------- */
.site-footer {
  background-color: var(--color-secondary);
  color: rgba(255, 255, 255, 0.75);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.5fr 0.8fr;
  gap: 48px;
  padding: 70px 24px 50px;
}

.brand-light .brand-text {
  color: var(--color-white);
}

.brand-light .brand-text em {
  color: #6FA8DC;
}

.footer-brand p {
  margin-top: 18px;
  font-size: 14.5px;
  line-height: 1.7;
}

.footer-nav,
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav h4,
.footer-contact h4 {
  color: var(--color-white);
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.footer-nav a,
.footer-contact a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 14.5px;
  transition: color 0.2s ease;
}

.footer-nav a:hover,
.footer-contact a:hover {
  color: var(--color-white);
}

.footer-contact p {
  font-size: 14.5px;
}

.footer-motto {
  margin-top: 12px;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 20px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

/* ---------- Botón flotante WhatsApp ---------- */
.whatsapp-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background-color: var(--color-whatsapp);
  color: var(--color-white);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.25);
  transition: transform 0.2s ease;
}

.whatsapp-float:hover {
  transform: scale(1.08);
}

.whatsapp-float svg {
  width: 30px;
  height: 30px;
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 1100px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-bg-alt);
    box-shadow: var(--shadow-soft);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .main-nav.open {
    max-height: 560px;
  }

  .main-nav > a {
    padding: 14px 24px;
    border-top: 1px solid var(--color-bg-alt);
  }

  .btn-nav {
    margin: 14px 24px;
    justify-content: center;
  }
}

@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }

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

  .about-grid,
  .contact-grid,
  .cta-inner,
  .intro-grid,
  .repse-intro {
    grid-template-columns: 1fr;
  }

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

  .cta-inner .btn-group {
    justify-content: flex-start;
  }

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

@media (max-width: 768px) {
  :root {
    --section-y: 60px;
  }

  body {
    font-size: 16px;
  }

  .grid-2,
  .grid-3,
  .grid-4,
  .process,
  .form-row,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .about-photo {
    aspect-ratio: 4 / 3;
  }

  .hero {
    padding: 36px 0;
  }

  .hero-badges {
    margin-bottom: 22px;
  }

  .hero-motto {
    margin-top: 22px;
  }

  .hero-stat {
    margin-top: 28px;
    padding: 14px 18px;
    gap: 12px;
  }

  .stat-number {
    font-size: 28px;
  }

  .stat-label {
    font-size: 12px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

/* ---------- Teléfonos pequeños ---------- */
@media (max-width: 480px) {
  :root {
    --section-y: 48px;
  }

  .container {
    padding: 0 18px;
  }

  .header-inner {
    height: 66px;
  }

  .main-nav {
    top: 66px;
  }

  .brand-logo {
    width: 38px;
    height: 38px;
  }

  .brand-text {
    font-size: 15px;
  }

  .lang-toggle {
    padding: 6px 12px;
    font-size: 12px;
  }

  html {
    scroll-padding-top: 78px;
  }

  .hero {
    min-height: calc(100svh - 66px);
    padding: 28px 0;
  }

  .hero h1 {
    font-size: clamp(27px, 8.5vw, 34px);
  }

  .hero-badge {
    font-size: 11px;
    padding: 7px 13px;
    gap: 6px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

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

  .marquee-track span {
    font-size: 13px;
  }

  .section-head {
    margin-bottom: 36px;
  }

  .btn {
    padding: 13px 22px;
    font-size: 15px;
  }

  .card-body {
    padding: 22px 18px 24px;
  }

  .level-card,
  .process-step,
  .advantage,
  .benefit {
    padding: 24px 20px;
  }

  .mv-card {
    padding: 26px 22px;
  }

  .about-callout {
    padding: 30px 24px;
  }

  .about-callout p {
    font-size: 19px;
  }

  .contact-form {
    padding: 24px 18px;
  }

  .contact-info {
    padding: 26px 20px;
  }

  .cta-band {
    padding: 56px 0;
  }

  .cta-inner .btn-group {
    flex-direction: column;
    align-items: stretch;
  }

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

  .hero-stat {
    margin-top: 22px;
    padding: 12px 16px;
    gap: 10px;
  }

  .stat-number {
    font-size: 24px;
  }

  .stat-label {
    font-size: 11px;
  }

  .sector-list li {
    font-size: 14px;
    padding: 9px 16px;
  }

  .values {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .value-item {
    padding: 16px 14px;
  }

  .intro-strip {
    padding: 36px 0;
  }

  .intro-side {
    padding-left: 18px;
  }

  .footer-grid {
    padding: 50px 18px 36px;
  }

  .whatsapp-float {
    width: 52px;
    height: 52px;
    right: 16px;
    bottom: 16px;
  }

  .whatsapp-float svg {
    width: 26px;
    height: 26px;
  }

  #back-to-top {
    width: 42px;
    height: 42px;
    right: 18px;
    bottom: 80px;
  }
}

/* ============================================================
   Accesibilidad: usuarios con movimiento reducido
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .marquee-track,
  .preloader-content img,
  .preloader-bar span {
    animation: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .btn:hover,
  .gallery-item:hover img,
  .service-card:hover .card-img img {
    transform: none;
  }

  .btn-primary::before,
  .btn-accent::before,
  .btn-whatsapp::before {
    display: none;
  }
}