/* ============================================================
   AirMax — Aire Acondicionado Profesional
   styles.css
   ============================================================ */

/* ── Variables de diseño ────────────────────────────────── */
:root {
  /* Paleta */
  --clr-primary:    #0a5ced;   /* azul principal */
  --clr-primary-dk: #0747b8;   /* azul oscuro */
  --clr-primary-lt: #dbeafe;   /* azul muy claro */
  --clr-accent:     #00c2e0;   /* cian vibrante */
  --clr-accent-lt:  #e0f9ff;

  /* Neutros */
  --clr-bg:         #f0f6ff;
  --clr-surface:    #ffffff;
  --clr-border:     #d1e3ff;
  --clr-text:       #0f1b2d;
  --clr-muted:      #5a7195;

  /* Tipografía */
  --font-display: 'Syne', sans-serif;
  --font-body:    'Outfit', sans-serif;

  /* Espaciado base */
  --space-xs:  .4rem;
  --space-sm:  .75rem;
  --space-md:  1.25rem;
  --space-lg:  2rem;
  --space-xl:  3.5rem;
  --space-2xl: 6rem;

  /* Radios */
  --radius-sm:   6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-full: 999px;

  /* Sombras */
  --shadow-sm:  0 2px 8px rgba(10,94,237,.08);
  --shadow-md:  0 8px 30px rgba(10,94,237,.12);
  --shadow-lg:  0 20px 60px rgba(10,94,237,.18);

  /* Navbar */
  --navbar-h: 72px;

  /* Transición global */
  --ease: cubic-bezier(.4,0,.2,1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--clr-text);
  background: var(--clr-bg);
  overflow-x: hidden;
}

img { display: block; max-width: 100%; height: auto; }
a   { color: inherit; text-decoration: none; }
ul  { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ── Contenedor ─────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 1.25rem;
}

/* ── Utilidades de sección ──────────────────────────────── */
.section-tag {
  display: inline-block;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: var(--clr-accent-lt);
  padding: .3rem .85rem;
  border-radius: var(--radius-full);
  margin-bottom: .85rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.6rem);
  line-height: 1.15;
  color: var(--clr-text);
  margin-bottom: .9rem;
}

.section-sub {
  color: var(--clr-muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin-inline: auto;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

/* ── Botones ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-body);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all .22s var(--ease);
  white-space: nowrap;
  padding: .65rem 1.5rem;
  font-size: .95rem;
}

.btn--primary {
  background: var(--clr-primary);
  color: #fff;
  box-shadow: 0 4px 18px rgba(10,94,237,.35);
}
.btn--primary:hover {
  background: var(--clr-primary-dk);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(10,94,237,.45);
}

.btn--outline {
  background: transparent;
  color: var(--clr-primary);
  border: 2px solid var(--clr-primary);
}
.btn--outline:hover {
  background: var(--clr-primary-lt);
  transform: translateY(-2px);
}

.btn--sm  { padding: .48rem 1.15rem; font-size: .875rem; }
.btn--lg  { padding: .85rem 2rem; font-size: 1.05rem; }
.btn--full { width: 100%; justify-content: center; }

/* ── Animaciones de entrada ─────────────────────────────── */
[data-animate] {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .65s var(--ease), transform .65s var(--ease);
}
[data-animate="fade-left"]  { transform: translateX(-32px); }
[data-animate="fade-right"] { transform: translateX( 32px); }

[data-animate].in-view {
  opacity: 1;
  transform: none;
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  height: var(--navbar-h);
  z-index: 1000;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, box-shadow .3s;
}

.navbar.scrolled {
  border-bottom-color: var(--clr-border);
  box-shadow: var(--shadow-sm);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Logo */
.navbar__logo {
  display: flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  color: var(--clr-text);
  transition: opacity .2s;
}
.navbar__logo:hover { opacity: .82; }

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  color: #fff;
  font-size: 1.05rem;
}

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

/* Links nav */
.navbar__nav {
  display: flex;
  align-items: center;
  gap: .25rem;
}

.nav-link {
  padding: .4rem .75rem;
  font-size: .92rem;
  font-weight: 500;
  color: var(--clr-muted);
  border-radius: var(--radius-sm);
  transition: color .2s, background .2s;
}
.nav-link:hover,
.nav-link.active {
  color: var(--clr-primary);
  background: var(--clr-primary-lt);
}

/* Toggle mobile */
.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}
.navbar__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: transform .3s var(--ease), opacity .3s;
}
.navbar__toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__toggle.open span:nth-child(2) { opacity: 0; }
.navbar__toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-block: calc(var(--navbar-h) + 4rem) 0;
  background: linear-gradient(140deg, #e8f2ff 0%, #f0f6ff 45%, #e0f9ff 100%);
  overflow: hidden;
}

/* Fondo de puntos decorativos */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(var(--clr-border) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: .55;
  pointer-events: none;
}

/* Partículas flotantes */
.hero__particles { position: absolute; inset: 0; pointer-events: none; }

.particle {
  position: absolute;
  color: var(--clr-primary);
  opacity: .12;
  animation: float linear infinite;
}
.particle--1 { top: 12%; left:  8%; font-size: 2.4rem;  animation-duration: 14s; }
.particle--2 { top: 60%; left: 72%; font-size: 1.6rem;  animation-duration: 18s; animation-delay: -6s; }
.particle--3 { top: 30%; right: 9%; font-size: 3.2rem;  animation-duration: 22s; animation-delay: -2s; }
.particle--4 { bottom:15%; left:25%; font-size: 2rem;   animation-duration: 16s; animation-delay: -9s; color: var(--clr-accent); }
.particle--5 { top: 75%; left: 45%; font-size: 1.2rem;  animation-duration: 20s; animation-delay: -4s; }

@keyframes float {
  0%   { transform: translateY(0)   rotate(0deg); }
  50%  { transform: translateY(-28px) rotate(180deg); }
  100% { transform: translateY(0)   rotate(360deg); }
}

/* Contenido hero */
.hero__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  padding-bottom: 5rem;
}

.hero__text { z-index: 1; }

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .05em;
  color: var(--clr-primary);
  background: rgba(10,94,237,.1);
  border: 1px solid rgba(10,94,237,.2);
  border-radius: var(--radius-full);
  padding: .35rem 1rem;
  margin-bottom: 1.2rem;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  line-height: 1.1;
  margin-bottom: 1.1rem;
  color: var(--clr-text);
}
.hero__title--accent {
  color: var(--clr-primary);
  -webkit-text-stroke: 0;
  background: linear-gradient(90deg, var(--clr-primary), var(--clr-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__desc {
  font-size: 1.08rem;
  color: var(--clr-muted);
  margin-bottom: 2rem;
  max-width: 480px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
  margin-bottom: 2.5rem;
}

/* Stats */
.hero__stats {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; gap: .1rem; }
.stat strong { font-family: var(--font-display); font-size: 1.35rem; color: var(--clr-text); }
.stat span   { font-size: .78rem; color: var(--clr-muted); text-transform: uppercase; letter-spacing: .08em; }
.stat__divider {
  width: 1px;
  height: 40px;
  background: var(--clr-border);
}

/* Imagen hero */
.hero__image { z-index: 1; }

.hero__img-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: visible;
}

.hero__img-frame img {
  width: 100%;
  height: 460px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

/* Badge flotante sobre imagen */
.hero__float-badge {
  position: absolute;
  bottom: -1.5rem;
  left: -1.5rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  background: #fff;
  border-radius: var(--radius-md);
  padding: .85rem 1.2rem;
  box-shadow: var(--shadow-md);
  font-size: .88rem;
  color: var(--clr-text);
  font-weight: 500;
}
.hero__float-badge i {
  font-size: 1.4rem;
  color: var(--clr-primary);
}
.hero__float-badge b { color: var(--clr-primary); }

/* Ola inferior */
.hero__wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  line-height: 0;
}
.hero__wave svg {
  width: 100%;
  height: 80px;
  display: block;
}

/* ============================================================
   BANDA DE MARCAS
   ============================================================ */
.brands {
  background: var(--clr-bg);
  padding-block: 2.5rem;
}

.brands__label {
  text-align: center;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clr-muted);
  margin-bottom: 1.5rem;
}

.brands__logos {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem 3rem;
}

.brands__logos span {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: #b5c9e8;
  letter-spacing: .04em;
  transition: color .2s;
}
.brands__logos span:hover { color: var(--clr-primary); }

/* ============================================================
   SERVICIOS
   ============================================================ */
.services {
  padding-block: var(--space-2xl);
  background: var(--clr-surface);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: stretch;
}

/* Tarjeta de servicio */
.service-card {
  position: relative;
  background: #fff;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 2.2rem 2rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform .28s var(--ease), box-shadow .28s var(--ease), border-color .28s;
}
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--clr-primary);
}

/* Versión destacada */
.service-card--featured {
  background: linear-gradient(145deg, var(--clr-primary) 0%, var(--clr-primary-dk) 100%);
  border-color: transparent;
  color: #fff;
}
.service-card--featured .service-card__desc,
.service-card--featured .service-card__list li,
.service-card--featured .service-card__link { color: rgba(255,255,255,.85); }
.service-card--featured .service-card__link:hover { color: #fff; }
.service-card--featured:hover { border-color: transparent; }

.service-card__badge {
  position: absolute;
  top: -1px;
  right: 1.5rem;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  background: var(--clr-accent);
  color: #fff;
  padding: .3rem .85rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.service-card__icon {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}
.service-card__icon--blue  { background: var(--clr-primary-lt); color: var(--clr-primary); }
.service-card__icon--white { background: rgba(255,255,255,.2); color: #fff; }

.service-card__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
}

.service-card__desc { font-size: .93rem; color: var(--clr-muted); line-height: 1.65; }

.service-card__list {
  display: flex;
  flex-direction: column;
  gap: .45rem;
  font-size: .9rem;
  flex: 1;
}
.service-card__list li {
  display: flex;
  align-items: center;
  gap: .5rem;
  color: var(--clr-muted);
}
.service-card__list i {
  color: var(--clr-accent);
  font-size: .8rem;
}

.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .9rem;
  font-weight: 600;
  color: var(--clr-primary);
  margin-top: .5rem;
  transition: gap .2s, color .2s;
}
.service-card__link:hover { gap: .75rem; }

/* ============================================================
   SOBRE NOSOTROS
   ============================================================ */
.about {
  padding-block: var(--space-2xl);
  background: var(--clr-bg);
}

.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

/* Imagen */
.about__img-wrap {
  position: relative;
}

.about__img-wrap img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

/* Decoración geométrica */
.about__img-wrap::before {
  content: '';
  position: absolute;
  inset: -16px -16px auto auto;
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, var(--clr-primary-lt), var(--clr-accent-lt));
  border-radius: var(--radius-md);
  z-index: -1;
}

.about__img-badge {
  position: absolute;
  bottom: -1.25rem;
  right: -1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--clr-primary);
  color: #fff;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  box-shadow: var(--shadow-md);
  text-align: center;
  padding: .5rem;
}
.about__img-badge strong { font-family: var(--font-display); font-size: 1.5rem; line-height: 1; }
.about__img-badge span   { font-size: .72rem; opacity: .9; }

/* Contenido texto */
.about__content { display: flex; flex-direction: column; gap: 1rem; }
.about__content p { color: var(--clr-muted); line-height: 1.75; }
.about__content strong { color: var(--clr-text); }

/* Valores */
.about__values {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-block: 1rem;
}

.value {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 1.2rem;
  background: var(--clr-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--clr-border);
  transition: box-shadow .22s;
}
.value:hover { box-shadow: var(--shadow-sm); }

.value > i {
  font-size: 1.25rem;
  color: var(--clr-primary);
  margin-top: .15rem;
  flex-shrink: 0;
  width: 26px;
  text-align: center;
}
.value div { display: flex; flex-direction: column; gap: .15rem; }
.value strong { font-size: .96rem; color: var(--clr-text); }
.value span   { font-size: .88rem; color: var(--clr-muted); }

/* ============================================================
   TESTIMONIOS
   ============================================================ */
.testimonials {
  padding-block: var(--space-2xl);
  background: linear-gradient(160deg, #e8f2ff 0%, #f0f6ff 60%, #e0f9ff 100%);
}

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

/* Tarjeta testimonio */
.testi-card {
  background: #fff;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform .28s var(--ease), box-shadow .28s;
}
.testi-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }

.testi-card--featured {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-dk));
  border-color: transparent;
  color: #fff;
}
.testi-card--featured .testi-card__text { color: rgba(255,255,255,.9); }
.testi-card--featured .testi-card__author strong { color: #fff; }
.testi-card--featured .testi-card__author span   { color: rgba(255,255,255,.7); }
.testi-card--featured .testi-card__stars i       { color: #fde68a; }

.testi-card__stars { display: flex; gap: .2rem; }
.testi-card__stars i { font-size: .95rem; color: #f59e0b; }

.testi-card__text {
  font-size: .95rem;
  color: var(--clr-muted);
  line-height: 1.75;
  flex: 1;
}

.testi-card__author {
  display: flex;
  align-items: center;
  gap: .85rem;
  padding-top: .75rem;
  border-top: 1px solid var(--clr-border);
}
.testi-card--featured .testi-card__author { border-top-color: rgba(255,255,255,.2); }

.testi-card__author img {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.testi-card__author strong { font-size: .93rem; display: block; color: var(--clr-text); }
.testi-card__author span   { font-size: .82rem; color: var(--clr-muted); }

/* ============================================================
   CONTACTO
   ============================================================ */
.contact {
  padding-block: var(--space-2xl);
  background: var(--clr-surface);
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 5rem;
  align-items: start;
}

.contact__info { display: flex; flex-direction: column; gap: .6rem; }
.contact__info > p { color: var(--clr-muted); line-height: 1.75; margin-bottom: .75rem; }

.contact__details { display: flex; flex-direction: column; gap: .85rem; margin-top: .5rem; }

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-item__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--clr-primary-lt);
  color: var(--clr-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-item > div { display: flex; flex-direction: column; gap: .2rem; padding-top: .2rem; }
.contact-item strong { font-size: .9rem; color: var(--clr-text); }
.contact-item a,
.contact-item span { font-size: .9rem; color: var(--clr-muted); transition: color .2s; }
.contact-item a:hover { color: var(--clr-primary); }

/* Formulario */
.contact__form-wrap {
  background: var(--clr-bg);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}

.contact-form { display: flex; flex-direction: column; gap: 1.1rem; }

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

.form-group { display: flex; flex-direction: column; gap: .45rem; }

.form-group label {
  font-size: .82rem;
  font-weight: 600;
  color: var(--clr-text);
  letter-spacing: .04em;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: .75rem 1rem;
  font-family: var(--font-body);
  font-size: .95rem;
  color: var(--clr-text);
  background: #fff;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color .22s, box-shadow .22s;
  resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #b0c4de; }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 4px rgba(10,94,237,.1);
}

/* Estado de error */
.form-group.has-error input,
.form-group.has-error textarea {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239,68,68,.1);
}

.form-error {
  font-size: .8rem;
  color: #ef4444;
  min-height: 1rem;
  display: block;
}

/* Botón submit con estado de carga */
#submitBtn {
  position: relative;
  overflow: hidden;
}
#submitBtn.loading .btn-text { opacity: 0; }
#submitBtn.loading::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2.5px solid rgba(255,255,255,.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Mensaje de éxito */
.form-success {
  display: none;
  align-items: flex-start;
  gap: 1rem;
  background: #ecfdf5;
  border: 1.5px solid #6ee7b7;
  border-radius: var(--radius-md);
  padding: 1.2rem 1.4rem;
  animation: slideIn .4s var(--ease);
}
.form-success.visible { display: flex; }
.form-success i { font-size: 1.5rem; color: #10b981; flex-shrink: 0; }
.form-success strong { font-size: .96rem; color: #065f46; display: block; margin-bottom: .2rem; }
.form-success p { font-size: .88rem; color: #047857; }

@keyframes slideIn {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: #0d1a2e;
  color: rgba(255,255,255,.75);
  padding-block-start: var(--space-2xl);
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 3rem 2.5rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

/* Columna brand */
.footer__brand .navbar__logo--footer { margin-bottom: 1rem; }
.footer__brand .navbar__logo--footer .logo-text { color: #fff; }
.footer__brand p {
  font-size: .9rem;
  line-height: 1.75;
  color: rgba(255,255,255,.55);
  margin-bottom: 1.25rem;
}

.footer__social {
  display: flex;
  gap: .6rem;
}
.footer__social a {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.1);
  color: rgba(255,255,255,.65);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: background .22s, color .22s, border-color .22s;
}
.footer__social a:hover {
  background: var(--clr-primary);
  border-color: var(--clr-primary);
  color: #fff;
}

/* Columnas generales */
.footer__col h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1.1rem;
}
.footer__col ul { display: flex; flex-direction: column; gap: .6rem; }
.footer__col ul a {
  font-size: .9rem;
  color: rgba(255,255,255,.55);
  transition: color .2s;
}
.footer__col ul a:hover { color: var(--clr-accent); }

/* Columna contacto */
.footer__contact li {
  display: flex;
  align-items: flex-start;
  gap: .65rem;
  font-size: .88rem;
  color: rgba(255,255,255,.55);
}
.footer__contact li i { color: var(--clr-accent); font-size: .9rem; margin-top: .2rem; flex-shrink: 0; }
.footer__contact a { color: rgba(255,255,255,.55); transition: color .2s; }
.footer__contact a:hover { color: var(--clr-accent); }

/* Barra inferior */
.footer__bottom {
  padding-block: 1.5rem;
}
.footer__bottom .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .5rem;
  font-size: .82rem;
  color: rgba(255,255,255,.35);
}

/* ============================================================
   BOTÓN FLOTANTE WHATSAPP
   ============================================================ */
.whatsapp-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 900;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  box-shadow: 0 4px 20px rgba(37,211,102,.5);
  transition: transform .25s var(--ease), box-shadow .25s;
}
.whatsapp-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 30px rgba(37,211,102,.65);
}

/* Tooltip */
.whatsapp-btn__tooltip {
  position: absolute;
  right: calc(100% + .75rem);
  background: #0d1a2e;
  color: #fff;
  font-family: var(--font-body);
  font-size: .82rem;
  font-weight: 600;
  white-space: nowrap;
  padding: .4rem .9rem;
  border-radius: var(--radius-full);
  pointer-events: none;
  opacity: 0;
  transform: translateX(8px);
  transition: opacity .2s, transform .2s;
}
.whatsapp-btn:hover .whatsapp-btn__tooltip {
  opacity: 1;
  transform: translateX(0);
}

/* ============================================================
   BOTÓN VOLVER ARRIBA
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 6.5rem;
  right: 2rem;
  z-index: 900;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--clr-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity .3s, transform .3s, background .2s;
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}
.back-to-top:hover { background: var(--clr-primary-dk); }

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* ── Tablet grande (≤ 1100px) ── */
@media (max-width: 1100px) {
  .hero__content { gap: 2.5rem; }
  .about__inner  { gap: 3rem; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
}

/* ── Tablet (≤ 900px) ── */
@media (max-width: 900px) {
  /* Navbar mobile */
  .navbar__toggle { display: flex; }

  .navbar__nav {
    display: none;
    position: absolute;
    top: var(--navbar-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: .1rem;
    background: rgba(255,255,255,.98);
    backdrop-filter: blur(20px);
    padding: 1.25rem 1.25rem 1.5rem;
    border-bottom: 1px solid var(--clr-border);
    box-shadow: var(--shadow-md);
  }
  .navbar__nav.open { display: flex; }
  .nav-link { width: 100%; padding: .65rem .9rem; font-size: 1rem; }
  .navbar__nav .btn { margin-top: .5rem; width: 100%; justify-content: center; }

  /* Hero */
  .hero__content { grid-template-columns: 1fr; padding-bottom: 6rem; }
  .hero__image { display: none; }
  .hero__text { text-align: center; }
  .hero__actions, .hero__stats { justify-content: center; }
  .hero__desc { margin-inline: auto; }

  /* Servicios */
  .services__grid { grid-template-columns: 1fr; max-width: 520px; margin-inline: auto; }

  /* About */
  .about__inner { grid-template-columns: 1fr; }
  .about__img-wrap { max-width: 520px; margin-inline: auto; }

  /* Testimonios */
  .testimonials__grid { grid-template-columns: 1fr; max-width: 540px; margin-inline: auto; }

  /* Contacto */
  .contact__inner { grid-template-columns: 1fr; gap: 3rem; }
}

/* ── Mobile (≤ 600px) ── */
@media (max-width: 600px) {
  :root { --space-2xl: 4rem; }

  .form-row { grid-template-columns: 1fr; }

  .footer__inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer__bottom .container { justify-content: center; text-align: center; }

  .hero__stats { gap: 1rem; }
  .stat__divider { display: none; }

  .whatsapp-btn { bottom: 1.25rem; right: 1.25rem; }
  .back-to-top  { bottom: 5.5rem; right: 1.25rem; }

  .hero__float-badge { left: .5rem; bottom: .5rem; font-size: .8rem; padding: .65rem .9rem; }
}