/* =========================================================
   CONSTRUCTORA VÉRTICE — HOJA DE ESTILOS
   Mobile first · Vanilla CSS
   ========================================================= */

:root {
  --rojo: #C1121F;
  --rojo-oscuro: #8B0000;
  --negro: #111111;
  --gris-oscuro: #2E2E2E;
  --gris-claro: #E5E5E5;
  --blanco: #FFFFFF;

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

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 2px 10px rgba(17, 17, 17, 0.06);
  --shadow-md: 0 12px 30px rgba(17, 17, 17, 0.10);
  --shadow-lg: 0 24px 60px rgba(17, 17, 17, 0.16);

  --container: 1180px;
  --transition: 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--gris-oscuro);
  background: var(--blanco);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul { list-style: none; }

button { font-family: inherit; cursor: pointer; border: none; background: none; }

input, textarea, select { font-family: inherit; font-size: 1rem; }

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

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

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

:focus-visible {
  outline: 3px solid var(--rojo);
  outline-offset: 3px;
}

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Utility ---------- */
.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rojo);
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(1.7rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 14px;
  max-width: 640px;
}

.section-subtitle {
  color: #6b6b6b;
  max-width: 560px;
  margin-bottom: 44px;
  font-size: 1.02rem;
}

section { padding: 88px 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 30px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.96rem;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--rojo);
  color: var(--blanco);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover {
  background: var(--rojo-oscuro);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  color: var(--blanco);
  border: 1.5px solid rgba(255,255,255,0.6);
}
.btn--outline:hover {
  background: rgba(255,255,255,0.12);
  transform: translateY(-2px);
}

.btn--whatsapp {
  background: #1FA855;
  color: var(--blanco);
}
.btn--whatsapp:hover { background: #178a44; transform: translateY(-2px); }

.btn--large { padding: 18px 38px; font-size: 1.05rem; }
.btn--block { width: 100%; }

.icon { width: 20px; height: 20px; fill: currentColor; flex-shrink: 0; }

/* =========================================================
   NAVBAR
   ========================================================= */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: background var(--transition), padding var(--transition), box-shadow var(--transition);
}

.navbar.is-scrolled {
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(10px);
  padding: 12px 0;
  box-shadow: var(--shadow-sm);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar__logo {
  display: flex;
  align-items: center;
  background: var(--blanco);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition);
}
.navbar.is-scrolled .navbar__logo { box-shadow: none; }

.navbar__logo-img {
  height: 40px;
  width: auto;
  display: block;
}

.navbar__nav {
  display: none;
  align-items: center;
  gap: 32px;
}

.navbar__link {
  font-weight: 500;
  font-size: 0.94rem;
  color: var(--blanco);
  position: relative;
  padding: 4px 0;
  transition: color var(--transition);
}
.navbar__link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--rojo);
  transition: width var(--transition);
}
.navbar__link:hover::after { width: 100%; }
.navbar.is-scrolled .navbar__link { color: var(--gris-oscuro); }

.navbar__actions { display: flex; align-items: center; gap: 14px; }
.navbar__whatsapp { padding: 10px 18px; font-size: 0.88rem; display: none; }

.navbar__toggle {
  width: 40px; height: 40px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 5px;
}
.navbar__toggle span {
  width: 22px; height: 2px;
  background: var(--blanco);
  transition: transform var(--transition), opacity var(--transition), background var(--transition);
}
.navbar.is-scrolled .navbar__toggle span { background: var(--negro); }
.navbar__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.navbar__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.navbar__nav.is-open {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  position: absolute;
  top: 100%; left: 0; right: 0;
  background: var(--blanco);
  padding: 12px 20px 24px;
  box-shadow: var(--shadow-md);
}
.navbar__nav.is-open .navbar__link { color: var(--gris-oscuro); width: 100%; padding: 12px 0; border-bottom: 1px solid var(--gris-claro); }

@media (min-width: 900px) {
  .navbar__nav { display: flex; position: static; background: none; box-shadow: none; padding: 0; }
  .navbar__toggle { display: none; }
  .navbar__whatsapp { display: inline-flex; }
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  color: var(--blanco);
  overflow: hidden;
}

.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__bg img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.06); }
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(17,17,17,0.55) 0%, rgba(17,17,17,0.65) 55%, rgba(17,17,17,0.85) 100%);
}

.hero__content { position: relative; z-index: 1; padding-top: 90px; }

.hero__title {
  font-size: clamp(2.2rem, 6.5vw, 4rem);
  font-weight: 800;
  margin-bottom: 20px;
  max-width: 780px;
}
.hero__title span { color: var(--rojo); }

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  max-width: 520px;
  color: rgba(255,255,255,0.85);
  margin-bottom: 34px;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 16px; }

.hero__scroll {
  position: absolute;
  bottom: 30px; left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  width: 26px; height: 42px;
  border: 2px solid rgba(255,255,255,0.6);
  border-radius: 20px;
  display: flex; justify-content: center; padding-top: 8px;
}
.hero__scroll span {
  width: 4px; height: 8px;
  background: var(--blanco);
  border-radius: 2px;
  animation: scrollDot 1.8s ease infinite;
}
@keyframes scrollDot {
  0% { opacity: 1; transform: translateY(0); }
  70% { opacity: 0; transform: translateY(10px); }
  100% { opacity: 0; }
}

/* =========================================================
   ESTADÍSTICAS
   ========================================================= */
.stats { background: var(--negro); padding: 60px 0; }
.stats__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  text-align: center;
}
.stats__number {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3rem);
  font-weight: 800;
  color: var(--rojo);
}
.stats__label {
  display: block;
  color: rgba(255,255,255,0.75);
  font-size: 0.88rem;
  margin-top: 6px;
}
@media (min-width: 720px) {
  .stats__grid { grid-template-columns: repeat(4, 1fr); }
}

/* =========================================================
   SERVICIOS
   ========================================================= */
.services__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}
@media (min-width: 640px) { .services__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .services__grid { grid-template-columns: repeat(3, 1fr); } }

.service-card {
  background: var(--blanco);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  border: 1px solid var(--gris-claro);
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }

.service-card__img { height: 190px; overflow: hidden; }
.service-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.service-card:hover .service-card__img img { transform: scale(1.08); }

.service-card__body { padding: 26px; }
.service-card__icon { font-size: 1.6rem; margin-bottom: 10px; }
.service-card__body h3 { font-size: 1.15rem; margin-bottom: 8px; }
.service-card__body p { color: #6b6b6b; font-size: 0.94rem; margin-bottom: 16px; }
.service-card__link { color: var(--rojo); font-weight: 600; font-size: 0.9rem; transition: gap var(--transition); }
.service-card__link:hover { text-decoration: underline; }

/* =========================================================
   GALERÍA
   ========================================================= */
.gallery { background: #FAFAFA; }

.gallery__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}
.filter-btn {
  padding: 10px 20px;
  border-radius: 30px;
  border: 1.5px solid var(--gris-claro);
  background: var(--blanco);
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--gris-oscuro);
  transition: all var(--transition);
}
.filter-btn:hover { border-color: var(--rojo); color: var(--rojo); }
.filter-btn.is-active { background: var(--rojo); border-color: var(--rojo); color: var(--blanco); }

.gallery__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 60px;
}
@media (min-width: 640px) { .gallery__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .gallery__grid { grid-template-columns: repeat(3, 1fr); } }

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 260px;
  box-shadow: var(--shadow-sm);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.gallery-item.is-hidden { display: none; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.gallery-item:hover img { transform: scale(1.1); }
.gallery-item figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 20px;
  background: linear-gradient(0deg, rgba(0,0,0,0.75) 0%, transparent 100%);
  color: var(--blanco);
  display: flex; flex-direction: column;
  opacity: 0; transform: translateY(10px);
  transition: all var(--transition);
}
.gallery-item:hover figcaption { opacity: 1; transform: translateY(0); }
.gallery-item figcaption span { font-weight: 700; font-family: var(--font-display); }
.gallery-item figcaption small { color: rgba(255,255,255,0.75); font-size: 0.78rem; }

/* Before / After */
.before-after { text-align: center; }
.before-after h3 { font-size: 1.4rem; margin-bottom: 8px; }
.before-after__subtitle { color: #6b6b6b; margin-bottom: 28px; }

.ba-slider {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  aspect-ratio: 4/3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  user-select: none;
}
.ba-slider__after, .ba-slider__before { position: absolute; inset: 0; }
.ba-slider__after img, .ba-slider__before img { width: 100%; height: 100%; object-fit: cover; }
.ba-slider__before { width: 50%; overflow: hidden; border-right: 3px solid var(--blanco); }
.ba-slider__before img { width: var(--ba-img-w, 800px); max-width: none; }

.ba-slider__handle {
  position: absolute; top: 0; bottom: 0; left: 50%;
  width: 44px; margin-left: -22px;
  display: flex; align-items: center; justify-content: center;
  pointer-events: none;
}
.ba-slider__arrow {
  width: 44px; height: 44px;
  background: var(--blanco);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  color: var(--rojo);
  box-shadow: var(--shadow-sm);
  font-size: 0.85rem;
}
.ba-slider__tag {
  position: absolute; top: 16px;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--blanco);
  background: rgba(17,17,17,0.6);
}
.ba-slider__tag--before { left: 16px; }
.ba-slider__tag--after { right: 16px; }

.ba-slider__range {
  width: 100%;
  max-width: 800px;
  margin: 22px auto 0;
  display: block;
  accent-color: var(--rojo);
  cursor: pointer;
}

/* =========================================================
   POR QUÉ ELEGIRNOS
   ========================================================= */
.why-us__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}
@media (min-width: 640px) { .why-us__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .why-us__grid { grid-template-columns: repeat(3, 1fr); } }

.why-card {
  padding: 30px 26px;
  border-radius: var(--radius-md);
  background: var(--blanco);
  border: 1px solid var(--gris-claro);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.why-card:hover { transform: translateY(-4px); border-color: var(--rojo); box-shadow: var(--shadow-sm); }
.why-card__icon {
  width: 52px; height: 52px;
  background: #FBE9EA;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
}
.why-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.why-card p { color: #6b6b6b; font-size: 0.94rem; }

/* =========================================================
   PROCESO / TIMELINE
   ========================================================= */
.process { background: #FAFAFA; }

.timeline { position: relative; }
.timeline::before {
  content: '';
  position: absolute;
  left: 23px; top: 0; bottom: 0;
  width: 2px;
  background: var(--gris-claro);
}
@media (min-width: 900px) {
  .timeline::before { left: 50%; transform: translateX(-1px); }
}

.timeline__item {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 22px;
  padding-bottom: 44px;
}
.timeline__item:last-child { padding-bottom: 0; }

.timeline__number {
  flex-shrink: 0;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--rojo);
  color: var(--blanco);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  z-index: 1;
}
.timeline__content h3 { font-size: 1.1rem; margin-bottom: 6px; }
.timeline__content p { color: #6b6b6b; font-size: 0.94rem; max-width: 460px; }

@media (min-width: 900px) {
  .timeline__item { justify-content: center; gap: 0; }
  .timeline__item:nth-child(odd) { flex-direction: row-reverse; }
  .timeline__item:nth-child(odd) .timeline__content { text-align: right; margin-right: 40px; }
  .timeline__item:nth-child(even) .timeline__content { margin-left: 40px; }
  .timeline__content { width: 360px; }
  .timeline__number { position: relative; }
}

/* =========================================================
   TESTIMONIOS
   ========================================================= */
.testimonial-carousel { position: relative; max-width: 640px; margin: 0 auto; overflow: hidden; }
.testimonial-track { display: flex; transition: transform 0.6s cubic-bezier(0.22,1,0.36,1); }
.testimonial-slide {
  min-width: 100%;
  text-align: center;
  padding: 44px 30px;
  background: var(--blanco);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gris-claro);
}
.testimonial-photo {
  width: 66px; height: 66px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
}
.testimonial-stars { color: var(--rojo); letter-spacing: 2px; margin-bottom: 14px; }
.testimonial-slide p { font-size: 1.05rem; color: var(--gris-oscuro); margin-bottom: 18px; font-style: italic; }
.testimonial-name { display: block; font-family: var(--font-display); font-weight: 700; color: var(--negro); }
.testimonial-role { display: block; font-size: 0.82rem; color: #999; }

.testimonial-dots { display: flex; justify-content: center; gap: 8px; margin-top: 22px; }
.testimonial-dots button {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--gris-claro);
  transition: background var(--transition), transform var(--transition);
}
.testimonial-dots button.is-active { background: var(--rojo); transform: scale(1.2); }

/* =========================================================
   FAQ
   ========================================================= */
.faq__list { max-width: 760px; }
.faq-item { border-bottom: 1px solid var(--gris-claro); }
.faq-item__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 0;
  text-align: left;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--negro);
}
.faq-item__icon {
  flex-shrink: 0;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--gris-claro);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  color: var(--rojo);
  transition: transform var(--transition), background var(--transition);
}
.faq-item.is-open .faq-item__icon { background: var(--rojo); color: var(--blanco); transform: rotate(45deg); }

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition), padding var(--transition);
}
.faq-item__answer p { color: #6b6b6b; padding-bottom: 0; font-size: 0.95rem; max-width: 620px; }
.faq-item.is-open .faq-item__answer { max-height: 200px; padding-bottom: 22px; }

/*  CTA  */
.cta {
  background: linear-gradient(135deg, var(--negro) 0%, #1c1c1c 100%);
  color: var(--blanco);
  text-align: center;
}
.cta__content h2 { color: var(--blanco); font-size: clamp(1.7rem, 4vw, 2.4rem); margin-bottom: 12px; }
.cta__content p { color: rgba(255,255,255,0.75); margin-bottom: 30px; }

/* FORMULARIO / COTIZACIÓN */
.quote__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 50px;
}
@media (min-width: 960px) { .quote__grid { grid-template-columns: 0.8fr 1.2fr; } }

.quote__contact-list { margin-top: 26px; display: flex; flex-direction: column; gap: 14px; }
.quote__contact-list li { display: flex; align-items: center; gap: 12px; font-size: 0.95rem; }

.quote__form {
  background: var(--blanco);
  border: 1px solid var(--gris-claro);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.form-row { display: grid; grid-template-columns: 1fr; gap: 18px; }
@media (min-width: 560px) { .form-row { grid-template-columns: 1fr 1fr; } }

.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.86rem;
  margin-bottom: 7px;
  color: var(--negro);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 13px 14px;
  border: 1.5px solid var(--gris-claro);
  border-radius: var(--radius-sm);
  background: #FCFCFC;
  color: var(--gris-oscuro);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--rojo);
  box-shadow: 0 0 0 4px rgba(193,18,31,0.1);
}
.form-group textarea { resize: vertical; min-height: 100px; }

.form-error {
  display: none;
  color: var(--rojo);
  font-size: 0.8rem;
  margin-top: 6px;
}
.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea { border-color: var(--rojo); }
.form-group.has-error .form-error { display: block; }

.file-drop {
  border: 2px dashed var(--gris-claro);
  border-radius: var(--radius-sm);
  padding: 30px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
}
.file-drop:hover, .file-drop.is-dragover { border-color: var(--rojo); background: #FCF4F4; }
.file-drop p { font-size: 0.92rem; color: var(--gris-oscuro); margin-bottom: 4px; }
.file-drop__hint { font-size: 0.78rem; color: #999; }

.file-preview { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.file-preview__item { position: relative; width: 64px; height: 64px; border-radius: var(--radius-sm); overflow: hidden; }
.file-preview__item img { width: 100%; height: 100%; object-fit: cover; }
.file-preview__remove {
  position: absolute; top: 2px; right: 2px;
  width: 18px; height: 18px;
  background: rgba(17,17,17,0.7);
  color: var(--blanco);
  border-radius: 50%;
  font-size: 0.7rem;
  line-height: 1;
  display: flex; align-items: center; justify-content: center;
}

.form-success {
  display: none;
  margin-top: 16px;
  padding: 14px 16px;
  background: #ECF9EF;
  color: #1F7A3D;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  text-align: center;
}
.form-success.is-visible { display: block; }

/* FOOTER  */
.footer { background: var(--negro); color: rgba(255,255,255,0.7); padding-top: 70px; }
.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
@media (min-width: 700px) { .footer__grid { grid-template-columns: 1.3fr 1fr 1fr 1.3fr; } }

.footer__logo { margin-bottom: 16px; }
.footer__col p { font-size: 0.9rem; margin-bottom: 8px; }
.footer__col h4 { color: var(--blanco); font-size: 0.95rem; margin-bottom: 18px; }
.footer__col a { display: block; font-size: 0.9rem; padding: 5px 0; transition: color var(--transition); }
.footer__col a:hover { color: var(--rojo); }

.footer__social { display: flex; gap: 10px; margin-top: 18px; }
.footer__social a {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.78rem;
  font-weight: 700;
}
.footer__social a:hover { background: var(--rojo); color: var(--blanco); }

.footer__map { border-radius: var(--radius-sm); overflow: hidden; height: 160px; }
.footer__map iframe { width: 100%; height: 100%; border: 0; filter: grayscale(0.4) invert(0.92) contrast(0.9); }

.footer__bottom { text-align: center; padding: 24px 0; font-size: 0.82rem; }

/* BOTONES FLOTANTES  */
.float-whatsapp {
  position: fixed;
  right: 20px; bottom: 24px;
  z-index: 900;
  width: 58px; height: 58px;
  background: #1FA855;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px rgba(31,168,85,0.4);
  color: var(--blanco);
  animation: pulse 2.4s ease infinite;
}
.float-whatsapp .icon { width: 28px; height: 28px; }
@keyframes pulse {
  0%, 100% { box-shadow: 0 8px 24px rgba(31,168,85,0.4); }
  50% { box-shadow: 0 8px 24px rgba(31,168,85,0.7), 0 0 0 8px rgba(31,168,85,0.08); }
}

.back-to-top {
  position: fixed;
  right: 20px; bottom: 92px;
  z-index: 900;
  width: 46px; height: 46px;
  background: var(--negro);
  color: var(--blanco);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--rojo); }