/* =============================================================
   HydroTerrain — Hoja de estilos principal
   Paleta derivada del logotipo (azul, teal, azul río, verde).
   Concepto visual: curvas de nivel topográficas + río en movimiento.
   ============================================================= */

/* ----------------------------------------------------------
   1. Tokens de diseño (variables CSS)
   ---------------------------------------------------------- */
:root {
  /* Colores de marca */
  --navy: #023a7a;
  --blue: #024999;      /* "Hydro" / letra H */
  --river: #1a6fc4;     /* río del logo */
  --teal: #0a7f8c;      /* "Terrain" */
  --teal-bright: #0d97a8;
  --green: #578334;     /* techo/montaña del logo */

  /* Neutros */
  --ink: #12212e;
  --slate: #43596a;
  --muted: #6d8090;
  --line: #dde6ec;
  --bg: #f6f9fb;
  --bg-alt: #eef4f8;
  --white: #ffffff;

  /* Tipografía */
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  /* Escala tipográfica fluida */
  --step--1: clamp(0.8rem, 0.75rem + 0.2vw, 0.9rem);
  --step-0: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --step-1: clamp(1.2rem, 1.05rem + 0.6vw, 1.5rem);
  --step-2: clamp(1.5rem, 1.25rem + 1vw, 2.1rem);
  --step-3: clamp(2rem, 1.5rem + 2.2vw, 3.4rem);
  --step-4: clamp(2.6rem, 1.8rem + 3.6vw, 5rem);

  /* Espaciado y formas */
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 18px 45px -22px rgba(2, 58, 122, 0.35);
  --shadow-sm: 0 8px 24px -14px rgba(2, 58, 122, 0.3);
  --container: 1180px;
  --gutter: clamp(1.15rem, 4vw, 2.5rem);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ----------------------------------------------------------
   2. Reset base
   ---------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

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

body {
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
ul { list-style: none; padding: 0; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.1;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--navy);
}

:focus-visible {
  outline: 3px solid var(--river);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Enlace para saltar al contenido (accesibilidad) */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: var(--navy);
  color: #fff;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  z-index: 1000;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 1rem; }

/* ----------------------------------------------------------
   3. Utilidades de layout
   ---------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(4rem, 9vw, 7.5rem); }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }
.section--alt { background: var(--bg-alt); }
.section--ink {
  background: var(--navy);
  color: #dfeaf3;
  position: relative;
  overflow: hidden;
}
.section--ink h2, .section--ink h3 { color: #fff; }

/* Encabezado de sección con "eyebrow" técnico */
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--teal);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--green);
}
.section--ink .eyebrow { color: var(--teal-bright); }

.section-title { font-size: var(--step-3); max-width: 18ch; }
.section-lead {
  color: var(--slate);
  max-width: 58ch;
  margin-top: 1.1rem;
  font-size: var(--step-1);
  font-weight: 400;
  line-height: 1.5;
}
.section--ink .section-lead { color: #b9cee0; }

/* ----------------------------------------------------------
   4. Botones
   ---------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 1.5rem;
  border-radius: 100px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--step-0);
  border: 1.5px solid transparent;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
              background 0.25s var(--ease), color 0.25s var(--ease);
  will-change: transform;
}
.btn svg { width: 18px; height: 18px; }
.btn--primary {
  background: linear-gradient(120deg, var(--blue), var(--teal));
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.btn--ghost {
  border-color: var(--line);
  color: var(--navy);
  background: rgba(255, 255, 255, 0.6);
}
.btn--ghost:hover { border-color: var(--river); color: var(--river); transform: translateY(-2px); }
.btn--light { background: #fff; color: var(--navy); }
.btn--light:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -16px rgba(0,0,0,0.5); }

/* ----------------------------------------------------------
   5. Header / navegación
   ---------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 249, 251, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(246, 249, 251, 0.95);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 74px;
}
.nav__logo img { height: 40px; width: auto; }
.nav__menu {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.nav__link {
  position: relative;
  padding: 0.5rem 0.9rem;
  font-weight: 500;
  color: var(--slate);
  border-radius: 8px;
  transition: color 0.2s var(--ease);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0.9rem;
  right: 0.9rem;
  bottom: 0.3rem;
  height: 2px;
  background: var(--teal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav__link:hover { color: var(--navy); }
.nav__link:hover::after,
.nav__link[aria-current="page"]::after { transform: scaleX(1); }
.nav__link[aria-current="page"] { color: var(--navy); }
.nav__cta { margin-left: 0.5rem; }

/* Botón hamburguesa */
.nav__toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  position: relative;
}
.nav__toggle span,
.nav__toggle span::before,
.nav__toggle span::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 20px;
  height: 2px;
  background: var(--navy);
  transform: translateX(-50%);
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}
.nav__toggle span { top: 50%; margin-top: -1px; }
.nav__toggle span::before { top: -6px; }
.nav__toggle span::after { top: 6px; }
.nav__toggle[aria-expanded="true"] span { background: transparent; }
.nav__toggle[aria-expanded="true"] span::before { transform: translateX(-50%) rotate(45deg); top: 0; }
.nav__toggle[aria-expanded="true"] span::after { transform: translateX(-50%) rotate(-45deg); top: 0; }

/* ----------------------------------------------------------
   6. Fondo de curvas de nivel (SVG decorativo)
   ---------------------------------------------------------- */
.contours {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.5;
}
.contours path { fill: none; stroke: var(--river); stroke-width: 1; opacity: 0.18; }
.section--ink .contours path { stroke: #4d92d6; opacity: 0.22; }

/* Línea de río animada */
.river-line {
  stroke-dasharray: 6 10;
  animation: flow 4.5s linear infinite;
}
@keyframes flow { to { stroke-dashoffset: -160; } }

/* ----------------------------------------------------------
   7. Hero
   ---------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(4rem, 8vw, 7rem) clamp(4rem, 9vw, 8rem);
  background:
    radial-gradient(120% 90% at 85% 5%, rgba(13,151,168,0.12), transparent 55%),
    radial-gradient(90% 80% at 0% 100%, rgba(26,111,196,0.12), transparent 60%),
    var(--bg);
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  position: relative;
  z-index: 2;
}
.hero__tag {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--teal);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 100px;
  background: #fff;
  margin-bottom: 1.6rem;
}
.hero__tag .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 0 rgba(87,131,52,0.6);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(87,131,52,0.5); }
  70% { box-shadow: 0 0 0 10px rgba(87,131,52,0); }
  100% { box-shadow: 0 0 0 0 rgba(87,131,52,0); }
}
.hero__title {
  font-size: var(--step-4);
  letter-spacing: -0.03em;
}
.hero__title .accent {
  background: linear-gradient(120deg, var(--blue), var(--teal-bright));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__lead {
  margin-top: 1.4rem;
  font-size: var(--step-1);
  font-weight: 400;
  color: var(--slate);
  max-width: 46ch;
  line-height: 1.5;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 2.2rem; }

/* Tarjeta visual del hero (sección + río) */
.hero__visual {
  position: relative;
  aspect-ratio: 4 / 3.4;
  border-radius: 20px;
  overflow: hidden;
  background: linear-gradient(160deg, var(--navy), #013e63 60%, var(--teal));
  box-shadow: var(--shadow);
  border: 1px solid rgba(255,255,255,0.15);
}
.hero__visual svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero__chip {
  position: absolute;
  left: 1.1rem;
  bottom: 1.1rem;
  right: 1.1rem;
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.9rem 1.1rem;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 12px;
  color: #eaf3fb;
}
.hero__chip b { font-family: var(--font-mono); display: block; font-size: 1.1rem; color: #fff; }
.hero__chip span { font-size: 0.78rem; color: #a9c6de; }

/* ----------------------------------------------------------
   8. Franja de clientes / sectores
   ---------------------------------------------------------- */
.marquee {
  border-block: 1px solid var(--line);
  background: #fff;
  padding-block: 1.3rem;
}
.marquee__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(1.2rem, 4vw, 3rem);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.marquee__row span { display: inline-flex; align-items: center; gap: 0.5rem; }
.marquee__row span::before { content: "◇"; color: var(--teal); }

/* ----------------------------------------------------------
   9. Propuesta de valor / beneficios (grid de tarjetas)
   ---------------------------------------------------------- */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-top: 3rem;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.8rem;
  position: relative;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: transparent;
}
.card__icon {
  width: 52px; height: 52px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(2,73,153,0.1), rgba(10,127,140,0.12));
  color: var(--teal);
  margin-bottom: 1.1rem;
}
.card__icon svg { width: 26px; height: 26px; }
.card h3 { font-size: var(--step-1); margin-bottom: 0.5rem; }
.card p { color: var(--slate); font-size: var(--step-0); }
.card__num {
  position: absolute;
  top: 1.4rem; right: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--line);
}

/* Lista de beneficios dentro de tarjeta de servicio */
.card__list { margin-top: 1rem; display: grid; gap: 0.5rem; }
.card__list li {
  display: flex;
  gap: 0.6rem;
  font-size: var(--step--1);
  color: var(--slate);
}
.card__list li::before {
  content: "";
  flex: none;
  width: 18px; height: 18px;
  margin-top: 2px;
  border-radius: 50%;
  background: var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/12px no-repeat;
}

/* ----------------------------------------------------------
   10. Estadísticas (contadores)
   ---------------------------------------------------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1.5rem;
  position: relative;
  z-index: 2;
}
.stat { text-align: center; padding: 1rem; }
.stat__num {
  font-family: var(--font-mono);
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 600;
  line-height: 1;
  color: #fff;
  letter-spacing: -0.02em;
}
.stat__num .suffix { color: var(--teal-bright); }
.stat__label {
  margin-top: 0.6rem;
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #a9c6de;
}

/* ----------------------------------------------------------
   11. Bloque proceso / enfoque (dividido)
   ---------------------------------------------------------- */
.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.process { display: grid; gap: 1.1rem; margin-top: 2rem; }
.process__step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.1rem;
  padding: 1.2rem 0;
  border-top: 1px solid var(--line);
}
.process__num {
  font-family: var(--font-mono);
  color: var(--teal);
  font-size: 0.85rem;
  padding-top: 0.25rem;
}
.process__step h3 { font-size: var(--step-1); margin-bottom: 0.35rem; }
.process__step p { color: var(--slate); font-size: var(--step-0); }

/* ----------------------------------------------------------
   12. CTA final
   ---------------------------------------------------------- */
.cta-band {
  position: relative;
  overflow: hidden;
  border-radius: 22px;
  background: linear-gradient(130deg, var(--navy), var(--blue) 45%, var(--teal));
  color: #fff;
  padding: clamp(2.5rem, 6vw, 4.5rem);
  text-align: center;
}
.cta-band h2 { color: #fff; font-size: var(--step-3); max-width: 22ch; margin-inline: auto; }
.cta-band p { color: #cfe2f2; max-width: 50ch; margin: 1rem auto 2rem; }
.cta-band .hero__actions { justify-content: center; }

/* ----------------------------------------------------------
   13. Página de servicios — cabecera y detalle
   ---------------------------------------------------------- */
.page-head {
  position: relative;
  overflow: hidden;
  padding-block: clamp(3.5rem, 8vw, 6rem) clamp(2.5rem, 5vw, 4rem);
  background:
    radial-gradient(80% 120% at 100% 0%, rgba(10,127,140,0.1), transparent 55%),
    var(--bg-alt);
}
.page-head__inner { position: relative; z-index: 2; max-width: 62ch; }
.breadcrumb {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--muted);
  margin-bottom: 1rem;
}
.breadcrumb a:hover { color: var(--teal); }

/* ----------------------------------------------------------
   14. Contacto
   ---------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: start;
}
.form {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 4vw, 2.4rem);
  box-shadow: var(--shadow-sm);
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field { margin-bottom: 1.15rem; display: grid; gap: 0.4rem; }
.field label {
  font-size: var(--step--1);
  font-weight: 600;
  color: var(--navy);
  font-family: var(--font-display);
}
.field label .req { color: var(--green); }
.field input,
.field textarea {
  font: inherit;
  font-size: var(--step-0);
  padding: 0.8rem 0.95rem;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--ink);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--river);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(26,111,196,0.12);
}
.field textarea { resize: vertical; min-height: 130px; }
.field__error {
  font-size: 0.78rem;
  color: #c0392b;
  min-height: 1em;
}
.form__note { font-size: var(--step--1); color: var(--muted); margin-top: 0.5rem; }
.form__status {
  margin-top: 1rem;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-sm);
  font-size: var(--step--1);
  display: none;
}
.form__status.is-ok { display: block; background: rgba(87,131,52,0.12); color: #3d6321; border: 1px solid rgba(87,131,52,0.3); }
.form__status.is-err { display: block; background: rgba(192,57,43,0.1); color: #a3271b; border: 1px solid rgba(192,57,43,0.25); }

/* Panel lateral de datos de contacto */
.contact-info { display: grid; gap: 1rem; }
.info-card {
  display: flex;
  gap: 1rem;
  padding: 1.2rem 1.3rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.info-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.info-card__icon {
  flex: none;
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border-radius: 11px;
  background: linear-gradient(135deg, rgba(2,73,153,0.1), rgba(10,127,140,0.12));
  color: var(--teal);
}
.info-card__icon svg { width: 22px; height: 22px; }
.info-card h3 { font-size: var(--step-0); margin-bottom: 0.15rem; }
.info-card a, .info-card p { color: var(--slate); font-size: var(--step--1); }
.info-card a:hover { color: var(--teal); }

.contact-buttons { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 0.5rem; }
.btn--whatsapp { background: #1faa53; color: #fff; }
.btn--whatsapp:hover { transform: translateY(-2px); box-shadow: 0 12px 26px -14px rgba(31,170,83,0.7); }

/* Mapa */
.map-wrap {
  margin-top: 2.5rem;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  aspect-ratio: 16 / 7;
}
.map-wrap iframe { width: 100%; height: 100%; border: 0; filter: grayscale(0.15) contrast(1.05); }

/* ----------------------------------------------------------
   15. Footer
   ---------------------------------------------------------- */
.site-footer {
  background: var(--ink);
  color: #b7c6d3;
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
}
.footer__brand img { height: 42px; margin-bottom: 1rem; filter: brightness(0) invert(1); }
.footer__brand p { max-width: 34ch; font-size: var(--step--1); color: #8ba0b2; }
.footer h4 {
  color: #fff;
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--font-mono);
  margin-bottom: 1rem;
}
.footer ul { display: grid; gap: 0.6rem; }
.footer a { color: #b7c6d3; font-size: var(--step--1); transition: color 0.2s var(--ease); }
.footer a:hover { color: #fff; }
.footer__bottom {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: space-between;
  font-size: 0.8rem;
  color: #7e93a5;
}

/* ----------------------------------------------------------
   16. Animaciones de revelado al hacer scroll
   ---------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }
.reveal[data-delay="4"] { transition-delay: 0.32s; }

/* ----------------------------------------------------------
   17. Responsive
   ---------------------------------------------------------- */
@media (max-width: 960px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__visual { max-width: 480px; order: -1; }
  .split { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .nav__toggle { display: block; }
  .nav__menu {
    position: fixed;
    inset: 74px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.2rem;
    background: var(--bg);
    padding: 1rem var(--gutter) 1.5rem;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    transform: translateY(-120%);
    transition: transform 0.4s var(--ease);
  }
  .nav__menu.is-open { transform: translateY(0); }
  .nav__link { padding: 0.9rem; border-radius: 10px; }
  .nav__link:hover { background: var(--bg-alt); }
  .nav__link::after { display: none; }
  .nav__cta { margin: 0.6rem 0 0; justify-content: center; }
  .form__row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* ----------------------------------------------------------
   18. Preferencia de movimiento reducido
   ---------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}