/* ============================================
   AGH Ingeniería y Construcción — Maqueta Demo
   One-page · sin backend · 100% visual
   ============================================ */

:root {
  --primary: #eba211;
  --primary-dark: #c98700;
  --primary-light: #ffc94d;
  --dark: #343c43;
  --dark-2: #23292f;
  --gray: #9f9f9e;
  --gray-light: #e7e6e5;
  --light: #f7f6f4;
  --white: #ffffff;

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

  --container-max: 1300px;
  --radius: 16px;
  --transition: .35s cubic-bezier(.25,.8,.25,1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--dark);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

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

ul { list-style: none; }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

.container--narrow { max-width: 900px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Scroll progress ---------- */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  z-index: 1100;
  transition: width .1s linear;
}

/* ---------- Dot navigation ---------- */
.dot-nav {
  position: fixed;
  right: 28px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 16px;
  z-index: 900;
}
.dot-nav .dot {
  width: 11px; height: 11px;
  border-radius: 50%;
  background: rgba(52,60,67,.25);
  position: relative;
  transition: var(--transition);
}
.dot-nav .dot::after {
  content: attr(data-label);
  position: absolute;
  right: 22px; top: 50%;
  transform: translateY(-50%);
  background: var(--dark);
  color: var(--white);
  font-size: .75rem;
  padding: 4px 10px;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.dot-nav .dot:hover::after { opacity: 1; }
.dot-nav .dot.active { background: var(--primary); transform: scale(1.4); }
@media (max-width: 992px) { .dot-nav { display: none; } }

/* ---------- Topbar ---------- */
.topbar {
  background: var(--dark-2);
  color: var(--gray-light);
  font-size: .82rem;
}
.topbar__inner {
  display: flex;
  gap: 28px;
  align-items: center;
  padding: 8px clamp(1.25rem, 4vw, 2.5rem);
}
.topbar a { display: flex; align-items: center; gap: 6px; transition: var(--transition); }
.topbar a:hover { color: var(--primary); }
.topbar__loc { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.topbar__social { display: flex; align-items: center; gap: 14px; margin-left: 22px; }
.topbar__social a { font-size: .9rem; transition: var(--transition); }
.topbar__social a:hover { color: var(--primary); transform: translateY(-2px); }
@media (max-width: 768px) { .topbar__inner { gap: 14px; font-size: .72rem; } .topbar__loc { display: none; } .topbar__social { margin-left: auto; } }

/* ---------- Header ---------- */
.header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 rgba(0,0,0,.05);
  transition: var(--transition);
}
.header.shrink { box-shadow: 0 8px 24px rgba(0,0,0,.08); }
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px clamp(1.25rem, 4vw, 2.5rem);
  transition: var(--transition);
}
.header.shrink .header__inner { padding-top: 8px; padding-bottom: 8px; }
.header__logo-canvas { height: 60px; width: auto; display: block; transition: var(--transition); }
.header.shrink .header__logo-canvas { height: 47px; }

.nav { display: flex; align-items: center; gap: 30px; }
.nav__link {
  position: relative;
  font-weight: 600;
  font-size: .95rem;
  color: var(--dark);
  padding: 6px 0;
}
.nav__link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--primary);
  transition: var(--transition);
}
.nav__link:hover::after, .nav__link.active::after { width: 100%; }
.nav__link--cta {
  background: var(--primary);
  color: var(--white);
  padding: 10px 22px;
  border-radius: 50px;
  transition: var(--transition);
}
.nav__link--cta::after { display: none; }
.nav__link--cta:hover { background: var(--primary-dark); transform: translateY(-2px); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1200;
}
.hamburger span {
  width: 26px; height: 3px;
  background: var(--dark);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

@media (max-width: 992px) {
  .nav { display: none; }
  .hamburger { display: flex; }
}

.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--dark-2);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 22px;
  transform: translateY(-100%);
  transition: transform .45s cubic-bezier(.25,.8,.25,1);
  z-index: 1050;
}
.mobile-menu.open { transform: translateY(0); }
.mobile-menu a { color: var(--white); font-size: 1.4rem; font-weight: 600; font-family: var(--font-heading); }
.mobile-menu__cta { color: var(--primary) !important; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 30px;
  border-radius: 50px;
  font-weight: 700;
  font-size: .98rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.btn--primary { background: var(--primary); color: var(--white); box-shadow: 0 10px 30px rgba(235,162,17,.35); }
.btn--primary:hover { background: var(--primary-dark); transform: translateY(-3px); box-shadow: 0 14px 34px rgba(235,162,17,.45); }
.btn--ghost { border-color: rgba(255,255,255,.5); color: var(--white); }
.btn--ghost:hover { background: rgba(255,255,255,.12); border-color: var(--white); transform: translateY(-3px); }
.btn--dark { background: var(--dark); color: var(--white); }
.btn--dark:hover { background: var(--dark-2); transform: translateY(-3px); }

/* ---------- Reveal on scroll ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity .8s ease, transform .8s cubic-bezier(.25,.8,.25,1);
}
[data-reveal].in-view { opacity: 1; transform: translateY(0); }

/* stagger children with a bit of nth-child delay where used in grids */
.services-grid [data-reveal].in-view,
.value-card[data-reveal].in-view,
.why-item[data-reveal].in-view,
.project-tile[data-reveal].in-view {
  transition-delay: calc(var(--i, 0) * 60ms);
}

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: 620px;
  max-height: 840px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(160deg, var(--dark) 0%, var(--dark-2) 60%, #1a1f24 100%);
  padding-top: 60px;
}
@media (max-width: 768px) { .hero { min-height: 100vh; max-height: none; } }
.hero__bg { position: absolute; inset: 0; overflow: hidden; z-index: 0; }
.hero__slides { position: absolute; inset: 0; }
.hero__slide {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1.08);
  transition: opacity 1.8s ease, transform 9s ease;
}
.hero__slide.active { opacity: 1; transform: scale(1); }
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(160deg, rgba(35,41,47,.93) 0%, rgba(35,41,47,.82) 45%, rgba(20,24,28,.9) 100%);
  z-index: 1;
}
.hero__grid {
  position: absolute; inset: 0;
  z-index: 2;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}
.hero__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: .45;
  mix-blend-mode: screen;
  z-index: 2;
  animation: float 14s ease-in-out infinite;
}
.hero__blob--1 { width: 480px; height: 480px; background: var(--primary); top: -160px; right: -120px; }
.hero__blob--2 { width: 380px; height: 380px; background: #6c7684; bottom: -140px; left: -100px; animation-delay: -5s; }
.hero__blob--3 { width: 260px; height: 260px; background: var(--gray); top: 40%; left: 55%; animation-delay: -9s; opacity: .3; }

@keyframes float {
  0%, 100% { transform: translate(0,0) scale(1); }
  33% { transform: translate(30px,-40px) scale(1.08); }
  66% { transform: translate(-25px,25px) scale(.95); }
}

.hero__content { position: relative; z-index: 2; color: var(--white); padding: 30px 0 50px; }
.hero__title { color: var(--white); }
.hero__eyebrow {
  display: inline-block;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-size: .8rem;
  color: var(--primary-light);
  background: rgba(235,162,17,.12);
  border: 1px solid rgba(235,162,17,.35);
  padding: 8px 18px;
  border-radius: 50px;
  margin-bottom: 26px;
}
.hero__title {
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  font-weight: 800;
  margin-bottom: 22px;
}
.hero__title-line { display: block; }
.hero__title-line--accent {
  background: linear-gradient(100deg, var(--primary) 20%, var(--primary-light) 50%, var(--primary) 80%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  min-height: 1.2em;
}
.hero__subtitle {
  max-width: 620px;
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: rgba(255,255,255,.78);
  margin-bottom: 40px;
}
.hero__actions { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 36px; }

.hero__stats { display: flex; gap: clamp(24px, 5vw, 60px); flex-wrap: wrap; }
.hero__stat { display: flex; flex-direction: column; }
.hero__stat strong { font-family: var(--font-heading); font-size: clamp(1.8rem, 3vw, 2.4rem); color: var(--primary); font-weight: 800; }
.hero__stat span { font-size: .85rem; color: rgba(255,255,255,.65); }

.hero__scroll {
  position: absolute;
  bottom: 32px; left: 50%;
  transform: translateX(-50%);
  width: 26px; height: 42px;
  border: 2px solid rgba(255,255,255,.4);
  border-radius: 20px;
  z-index: 2;
}
.hero__scroll span {
  position: absolute;
  top: 8px; left: 50%;
  transform: translateX(-50%);
  width: 5px; height: 5px;
  background: var(--primary);
  border-radius: 50%;
  animation: scrollDot 1.8s ease infinite;
}
@keyframes scrollDot {
  0% { top: 8px; opacity: 1; }
  70% { opacity: 1; }
  100% { top: 26px; opacity: 0; }
}

/* ---------- Marquee ---------- */
.marquee {
  background: var(--primary);
  color: var(--dark);
  overflow: hidden;
  white-space: nowrap;
  padding: 8px 0;
}
.marquee__track {
  display: inline-flex;
  gap: 16px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(.7rem, 1.1vw, .85rem);
  letter-spacing: .04em;
  animation: marquee 22s linear infinite;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- Sections generic ---------- */
.section { padding: clamp(70px, 10vw, 120px) 0; }
.section--dark { background: var(--dark); color: var(--white); }
.section--dark h2, .section--dark h3, .section--dark h4 { color: var(--white); }
.section--light-alt { background: var(--light); }

.section__head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section__eyebrow {
  color: var(--primary);
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  font-size: .8rem;
  margin-bottom: 10px;
}
.section__title { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; margin-bottom: 14px; }
.section__desc { color: var(--gray); font-size: 1.05rem; }
.section--dark .section__desc { color: rgba(255,255,255,.7); }

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--white);
  border: 1px solid var(--gray-light);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  will-change: transform;
}
.service-card:hover {
  box-shadow: 0 20px 45px rgba(52,60,67,.16);
  border-color: transparent;
}
.service-card__photo {
  position: relative;
  height: 150px;
  background-size: cover;
  background-position: center;
}
.service-card__photo::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.25), transparent 60%);
}
.service-card__body { padding: 34px 24px 28px; }
.service-card__icon {
  position: absolute;
  left: 18px; bottom: -22px;
  width: 50px; height: 50px;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  box-shadow: 0 8px 20px rgba(235,162,17,.4);
  z-index: 1;
  transition: var(--transition);
}
.service-card:hover .service-card__photo { }
.service-card:hover .service-card__icon { transform: rotate(-8deg) scale(1.08); }
.service-card h3 { font-size: 1.08rem; margin: 0 0 10px; }
.service-card p { color: var(--gray); font-size: .92rem; }

@media (max-width: 1200px) { .services-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 860px) { .services-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .services-grid { grid-template-columns: 1fr; } }

/* ---------- Nosotros ---------- */
.about { display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px; align-items: center; margin-bottom: 50px; }
.about__text p { color: rgba(255,255,255,.78); margin-bottom: 16px; }
.about__text strong { color: var(--primary-light); }
.about__photo {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  background-size: cover;
  background-position: center;
  box-shadow: 0 20px 50px rgba(0,0,0,.35);
}

.mv-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 90px; }
.mv-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
}
.mv-card:hover { background: rgba(235,162,17,.08); border-color: rgba(235,162,17,.3); transform: translateY(-4px); }
.mv-card__icon { width: 50px; height: 50px; border-radius: 12px; background: var(--primary); color: var(--white); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; margin-bottom: 14px; }
.mv-card h3 { margin-bottom: 10px; }
.mv-card p { color: rgba(255,255,255,.72); font-size: .95rem; }

@media (max-width: 900px) { .about { grid-template-columns: 1fr; } .mv-row { grid-template-columns: 1fr; } }

.values__title { text-align: center; font-size: clamp(1.4rem, 3vw, 1.8rem); margin-bottom: 34px; }
.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.value-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  transition: var(--transition);
}
.value-card:hover { transform: translateY(-6px); background: rgba(255,255,255,.07); }
.value-card i { font-size: 1.8rem; color: var(--primary); margin-bottom: 12px; }
.value-card h4 { margin-bottom: 8px; }
.value-card p { color: rgba(255,255,255,.68); font-size: .9rem; }

@media (max-width: 860px) { .values-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .values-grid { grid-template-columns: 1fr; } }

/* ---------- Stats band ---------- */
.stats {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  padding: 56px 0;
}
.stats__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; color: var(--white); }
.stat-item__number { font-family: var(--font-heading); font-size: clamp(2.2rem, 4vw, 3.2rem); font-weight: 800; }
.stat-item__plus { font-family: var(--font-heading); font-size: clamp(1.4rem, 2.5vw, 2rem); font-weight: 800; }
.stat-item p { font-size: .95rem; opacity: .9; margin-top: 4px; }
@media (max-width: 768px) { .stats__grid { grid-template-columns: repeat(2, 1fr); gap: 34px; } }

/* ---------- Why choose us ---------- */
.why-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 40px; }
.why-item {
  display: flex; align-items: center; gap: 14px;
  padding: 16px 20px;
  background: var(--light);
  border-radius: 12px;
  font-weight: 600;
  transition: var(--transition);
}
.why-item:hover { background: #fdf1dc; transform: translateX(6px); }
.why-item i { color: var(--primary); font-size: 1.2rem; flex-shrink: 0; }
@media (max-width: 768px) { .why-grid { grid-template-columns: 1fr; } }

/* ---------- Sectores ---------- */
.sectors { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.sector-chip {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 22px;
  border-radius: 50px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.14);
  color: var(--white);
  font-weight: 600;
  font-size: .92rem;
  transition: var(--transition);
}
.sector-chip i { color: var(--primary); }
.sector-chip:hover { background: var(--primary); color: var(--dark); border-color: var(--primary); transform: translateY(-3px); }
.sector-chip:hover i { color: var(--dark); }

/* ---------- Proyectos (bento) ---------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 160px;
  gap: 18px;
}
.project-tile {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 20px;
  color: var(--white);
  font-weight: 700;
  font-family: var(--font-heading);
  font-size: 1rem;
  background-color: var(--dark);
  background-size: cover;
  background-position: center;
  transition: var(--transition);
  cursor: default;
}
.project-tile--big { grid-column: span 2; grid-row: span 2; font-size: 1.3rem; }
.project-tile--wide { grid-column: span 2; }
.project-tile i {
  position: absolute; top: 20px; left: 20px;
  font-size: 1.4rem;
  color: var(--white);
  background: rgba(35,41,47,.55);
  backdrop-filter: blur(4px);
  width: 36px; height: 36px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  z-index: 1;
  transition: var(--transition);
}
.project-tile span { position: relative; z-index: 1; }
.project-tile::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.8) 5%, rgba(0,0,0,.15) 55%, rgba(0,0,0,.05) 75%);
}
.project-tile:hover { transform: translateY(-6px) scale(1.02); box-shadow: 0 22px 40px rgba(0,0,0,.22); }
.project-tile:hover i { transform: scale(1.15) rotate(6deg); opacity: .85; }

@media (max-width: 992px) { .projects-grid { grid-template-columns: repeat(2, 1fr); } .project-tile--big { grid-column: span 2; } }
@media (max-width: 560px) {
  .projects-grid { grid-template-columns: 1fr; grid-auto-rows: 140px; }
  .project-tile--big, .project-tile--wide { grid-column: span 1; grid-row: span 1; }
}

/* ---------- CTA final ---------- */
.cta {
  background-color: var(--dark);
  background-size: cover;
  background-position: center;
  color: var(--white);
  padding: clamp(60px, 8vw, 100px) 0;
  text-align: center;
}
.cta__inner h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 16px; color: var(--white); text-shadow: 0 2px 16px rgba(0,0,0,.5); }
.cta__inner p { max-width: 560px; margin: 0 auto 32px; color: rgba(255,255,255,.9); text-shadow: 0 2px 12px rgba(0,0,0,.5); }

/* ---------- Contacto ---------- */
.contact__photo {
  width: 100%;
  height: 220px;
  border-radius: var(--radius);
  background-size: cover;
  background-position: center;
  margin-bottom: 40px;
  box-shadow: 0 20px 50px rgba(0,0,0,.15);
}

.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: stretch; }
.contact__cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.contact-card {
  background: var(--light);
  border-radius: var(--radius);
  padding: 28px 22px;
  transition: var(--transition);
  border: 1px solid transparent;
}
.contact-card i { font-size: 1.6rem; color: var(--primary); margin-bottom: 12px; display: block; }
.contact-card h3 { font-size: 1rem; margin-bottom: 4px; }
.contact-card p { color: var(--gray); font-size: .9rem; word-break: break-word; }
.contact-card:not(.contact-card--static):hover { background: var(--dark); border-color: var(--dark); transform: translateY(-4px); }
.contact-card:not(.contact-card--static):hover i,
.contact-card:not(.contact-card--static):hover h3,
.contact-card:not(.contact-card--static):hover p { color: var(--white); }
.contact-card:not(.contact-card--static):hover i { color: var(--primary-light); }

.contact__map { border-radius: var(--radius); overflow: hidden; min-height: 320px; }
.contact__map iframe { width: 100%; height: 100%; min-height: 320px; border: 0; }

@media (max-width: 900px) { .contact { grid-template-columns: 1fr; } }
@media (max-width: 480px) { .contact__cards { grid-template-columns: 1fr; } }

/* ---------- Footer ---------- */
.footer { background: var(--dark-2); color: rgba(255,255,255,.65); }

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding: 70px 0 50px;
}

.footer__col h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 20px;
}
.footer__col { display: flex; flex-direction: column; }
.footer__col a, .footer__col span {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,.65);
  font-size: .92rem;
  margin-bottom: 12px;
  transition: var(--transition);
}
.footer__col a:hover { color: var(--primary-light); transform: translateX(3px); }
.footer__col i { color: var(--primary); flex-shrink: 0; }

.footer__col--brand .footer__logo { height: 44px; width: auto; margin-bottom: 18px; filter: brightness(0) invert(1); }
.footer__col--brand p { font-size: .9rem; color: rgba(255,255,255,.6); margin-bottom: 22px; }

.footer__social { display: flex; gap: 12px; }
.footer__social a {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,.08);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 0;
  color: var(--white);
}
.footer__social a:hover { background: var(--primary); color: var(--dark); transform: translateY(-3px); }

.footer__bottom { border-top: 1px solid rgba(255,255,255,.1); }
.footer__bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding: 20px 0;
  font-size: .85rem;
  color: rgba(255,255,255,.55);
}
.footer__bottom-inner a { color: var(--primary-light); font-weight: 600; }

@media (max-width: 992px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer__grid { grid-template-columns: 1fr; padding: 50px 0 30px; gap: 34px; }
  .footer__bottom-inner { flex-direction: column; text-align: center; }
}

/* ---------- Floating elements ---------- */
.float-whatsapp {
  position: fixed;
  right: 26px; bottom: 26px;
  width: 60px; height: 60px;
  background: #25D366;
  color: var(--white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.7rem;
  box-shadow: 0 10px 30px rgba(37,211,102,.4);
  z-index: 950;
  animation: pulse 2.4s ease infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(37,211,102,.5), 0 10px 30px rgba(37,211,102,.4); }
  70% { box-shadow: 0 0 0 16px rgba(37,211,102,0), 0 10px 30px rgba(37,211,102,.4); }
  100% { box-shadow: 0 0 0 0 rgba(37,211,102,0), 0 10px 30px rgba(37,211,102,.4); }
}

.back-to-top {
  position: fixed;
  right: 26px; bottom: 96px;
  width: 46px; height: 46px;
  background: var(--dark);
  color: var(--white);
  border: none;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  cursor: pointer;
  z-index: 950;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
}
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--primary); }

@media (max-width: 560px) {
  .float-whatsapp { right: 16px; bottom: 16px; width: 52px; height: 52px; font-size: 1.4rem; }
  .back-to-top { right: 16px; bottom: 78px; width: 40px; height: 40px; }
}

/* ---------- Protección básica de contenido (disuasoria, no infalible) ---------- */
img, canvas, svg {
  -webkit-user-drag: none;
  user-drag: none;
  -webkit-touch-callout: none;
  user-select: none;
  -webkit-user-select: none;
}