/* ==========================================================================
   NÁUTICA LAGO VILLARRICA — Hoja de estilos principal
   Sistema basado en STYLE_GUIDE.md
   ========================================================================== */

/* -- 1. Reset y base ------------------------------------------------------- */

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--volcan);
  background: var(--nieve);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, picture, video, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; }
a { color: inherit; text-decoration: none; }

/* -- 2. Tokens de diseño --------------------------------------------------- */

:root {
  /* Colores principales */
  --lago-profundo: #0B4F71;
  --lago-claro: #5B9BD5;
  --atardecer: #E8A33D;
  --atardecer-suave: #F4C879;
  --volcan: #1F1F23;
  --nieve: #FAFAFA;
  --espuma: #F4F7F9;
  --vela: #FFFFFF;
  --bosque: #2D5F3F;

  /* Estados */
  --verde-apto: #5CB85C;
  --amarillo-prudente: #F0AD4E;
  --coral: #D9534F;

  /* Grises */
  --gris-100: #F2F4F6;
  --gris-200: #E5E7EB;
  --gris-400: #94A3B8;
  --gris-700: #475569;

  /* Tipografía */
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --h1: clamp(2.5rem, 5vw, 4.5rem);
  --h2: clamp(2rem, 3.5vw, 3rem);
  --h3: clamp(1.5rem, 2.5vw, 2rem);
  --h4: clamp(1.125rem, 1.5vw, 1.375rem);

  /* Espaciado */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --container-max: 1280px;
  --container-padding: clamp(1rem, 4vw, 2.5rem);

  /* Bordes y sombras */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 999px;

  --shadow-sm: 0 1px 2px rgba(11, 79, 113, 0.05);
  --shadow-md: 0 4px 24px rgba(11, 79, 113, 0.08);
  --shadow-lg: 0 12px 40px rgba(11, 79, 113, 0.12);

  /* Transiciones */
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* -- 3. Tipografía global -------------------------------------------------- */

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  margin: 0;
  color: var(--volcan);
}

h4, h5, h6 {
  font-family: var(--font-body);
  font-weight: 600;
  margin: 0;
}

h1 { font-size: var(--h1); }
h2 { font-size: var(--h2); }
h3 { font-size: var(--h3); font-weight: 600; }
h4 { font-size: var(--h4); }

p { margin: 0 0 var(--space-4); }
p:last-child { margin-bottom: 0; }

.caption {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--gris-400);
}

.eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--atardecer);
  margin-bottom: var(--space-4);
}

/* -- 4. Layout y contenedores --------------------------------------------- */

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

section {
  padding: var(--space-24) 0;
}

section.tight { padding: var(--space-16) 0; }

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-16);
}

.section-header p {
  font-size: 1.125rem;
  color: var(--gris-700);
  margin-top: var(--space-4);
}

.bg-espuma { background: var(--espuma); }
.bg-lago   { background: var(--lago-profundo); color: var(--vela); }
.bg-lago h1, .bg-lago h2, .bg-lago h3 { color: var(--vela); }

/* -- 5. Botones ------------------------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 14px 32px;
  border: none;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 1rem;
  letter-spacing: 0.3px;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--atardecer);
  color: var(--volcan);
}
.btn--primary:hover {
  background: var(--atardecer-suave);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background: var(--lago-profundo);
  color: var(--vela);
}
.btn--secondary:hover {
  background: #0a445f;
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  border: 1.5px solid var(--vela);
  color: var(--vela);
}
.btn--outline:hover {
  background: var(--vela);
  color: var(--lago-profundo);
}

.btn--ghost {
  background: transparent;
  color: var(--lago-profundo);
  padding: 12px 20px;
}
.btn--ghost:hover {
  background: var(--espuma);
}

.btn--sm { padding: 10px 20px; font-size: 0.875rem; }
.btn--lg { padding: 18px 40px; font-size: 1.125rem; }

/* -- 6. Header / navegación ----------------------------------------------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-4) 0;
  background: rgba(250, 250, 250, 0);
  backdrop-filter: blur(0);
  transition: all var(--transition);
}

.site-header.is-scrolled {
  background: rgba(250, 250, 250, 0.96);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--vela);
  transition: color var(--transition);
}

.site-header.is-scrolled .site-logo { color: var(--volcan); }

.site-logo__icon {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  background: var(--atardecer);
  border-radius: var(--radius-full);
  color: var(--volcan);
}

.site-nav {
  display: none;
  gap: var(--space-6);
}

@media (min-width: 1024px) {
  .site-nav { display: flex; }
}

.site-nav a {
  color: var(--vela);
  font-weight: 500;
  font-size: 0.9375rem;
  position: relative;
  transition: color var(--transition);
}

.site-header.is-scrolled .site-nav a { color: var(--volcan); }

.site-nav a::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--atardecer);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition);
}

.site-nav a:hover::after,
.site-nav a.is-active::after { transform: scaleX(1); }

.site-header__cta {
  display: none;
}

@media (min-width: 768px) {
  .site-header__cta { display: inline-flex; }
}

.mobile-toggle {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  color: var(--vela);
}

.site-header.is-scrolled .mobile-toggle { color: var(--volcan); }

@media (min-width: 1024px) {
  .mobile-toggle { display: none; }
}

.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--lago-profundo);
  z-index: 200;
  display: flex;
  flex-direction: column;
  padding: var(--space-8) var(--container-padding);
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu.is-open { transform: translateX(0); }

.mobile-menu__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-12);
}

.mobile-menu nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.mobile-menu nav a {
  color: var(--vela);
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 500;
}

.mobile-menu__footer {
  margin-top: auto;
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

/* -- 7. Hero --------------------------------------------------------------- */

.hero {
  position: relative;
  min-height: 100vh;
  max-height: 900px;
  display: flex;
  align-items: flex-end;
  padding: var(--space-32) 0 var(--space-16);
  overflow: hidden;
  color: var(--vela);
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero__media img,
.hero__media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(11, 79, 113, 0.45) 0%,
    rgba(11, 79, 113, 0.15) 30%,
    rgba(11, 79, 113, 0.75) 100%);
  z-index: -1;
}

.hero__content {
  max-width: 720px;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--atardecer);
  margin-bottom: var(--space-6);
}

.hero h1 {
  color: var(--vela);
  margin-bottom: var(--space-6);
}

.hero__bajada {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  line-height: 1.5;
  margin-bottom: var(--space-8);
  color: rgba(255, 255, 255, 0.92);
  max-width: 580px;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-6);
  left: 50%;
  color: var(--vela);
  font-size: 0.75rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  opacity: 0.7;
  /* Capa de composición propia: evita el repintado/parpadeo sobre la imagen
     del hero en GPUs integradas. El movimiento va en un hijo (no en este nodo). */
  transform: translateX(-50%) translateZ(0);
  will-change: transform;
  backface-visibility: hidden;
}

/* El bounce se aplica a un pseudo-hijo para no recalcular el translateX(-50%)
   del contenedor en cada frame (causa principal del flicker). */
.hero__scroll {
  animation: heroScrollBounce 2.4s ease-in-out infinite;
}

@keyframes heroScrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0) translateZ(0); }
  50%      { transform: translateX(-50%) translateY(6px) translateZ(0); }
}

@media (prefers-reduced-motion: reduce) {
  .hero__scroll { animation: none; }
}

/* -- 8. Strip de categorías ----------------------------------------------- */

.strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-4);
  padding: var(--space-8);
  background: var(--vela);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  margin-top: calc(-1 * var(--space-16));
  position: relative;
  z-index: 5;
}

.strip__item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  transition: background var(--transition);
}

.strip__item:hover { background: var(--espuma); }

.strip__icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  background: var(--espuma);
  color: var(--lago-profundo);
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.strip__title {
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 2px;
}

.strip__sub {
  font-size: 0.8125rem;
  color: var(--gris-400);
}

/* -- 9. Cards de servicio ------------------------------------------------- */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-8);
}

.card-service {
  background: var(--vela);
  border: 1px solid var(--gris-100);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.card-service:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--gris-200);
}

.card-service__media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
}

.card-service__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-service:hover .card-service__media img {
  transform: scale(1.06);
}

.card-service__badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  padding: 6px 12px;
  background: rgba(11, 79, 113, 0.9);
  color: var(--vela);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  border-radius: var(--radius-full);
  backdrop-filter: blur(4px);
}

.card-service__badge--destacado {
  background: var(--atardecer);
  color: var(--volcan);
}

.card-service__body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-service__meta {
  display: flex;
  gap: var(--space-4);
  font-size: 0.8125rem;
  color: var(--gris-400);
  margin-bottom: var(--space-3);
}

.card-service__meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.card-service h3 {
  margin-bottom: var(--space-3);
  font-size: 1.5rem;
}

.card-service__desc {
  color: var(--gris-700);
  font-size: 0.9375rem;
  line-height: 1.55;
  margin-bottom: var(--space-6);
  flex: 1;
}

.card-service__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-4);
  border-top: 1px solid var(--gris-100);
}

.card-service__price {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--lago-profundo);
  line-height: 1;
}

.card-service__price small {
  display: block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--gris-400);
  margin-top: 2px;
}

/* -- 10. Diferenciadores -------------------------------------------------- */

.diff {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-8);
}

.diff__item {
  text-align: center;
  padding: var(--space-6);
}

.diff__num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 500;
  color: var(--atardecer);
  line-height: 1;
  margin-bottom: var(--space-3);
}

.diff__title {
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.diff__desc {
  font-size: 0.9375rem;
  color: var(--gris-700);
}

/* -- 11. Widget pronóstico ------------------------------------------------ */

.pronostico {
  background: var(--vela);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-md);
}

.pronostico__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.pronostico__title h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-1);
}

.pronostico__legend {
  display: flex;
  gap: var(--space-4);
  font-size: 0.75rem;
  color: var(--gris-700);
  flex-wrap: wrap;
}

.pronostico__legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.pronostico__dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
}

.dot--apto { background: var(--verde-apto); }
.dot--prudente { background: var(--amarillo-prudente); }
.dot--evitar { background: var(--coral); }

.pronostico__grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: var(--space-2);
  overflow-x: auto;
}

@media (max-width: 768px) {
  .pronostico__grid {
    grid-template-columns: repeat(7, minmax(80px, 1fr));
  }
}

.day {
  text-align: center;
  padding: var(--space-4) var(--space-2);
  border-radius: var(--radius-md);
  background: var(--espuma);
  position: relative;
  border: 2px solid transparent;
  transition: all var(--transition);
}

.day:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.day--apto { border-color: var(--verde-apto); }
.day--prudente { border-color: var(--amarillo-prudente); }
.day--evitar { border-color: var(--coral); opacity: 0.65; }

.day__name {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--gris-400);
  margin-bottom: 4px;
}

.day__num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--volcan);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.day__icon {
  font-size: 1.25rem;
  margin-bottom: var(--space-2);
}

.day__temp {
  font-size: 0.8125rem;
  color: var(--gris-700);
  font-weight: 500;
}

.day__viento {
  font-size: 0.6875rem;
  color: var(--gris-400);
  margin-top: 2px;
}

/* -- 12. Galería preview -------------------------------------------------- */

.gallery-preview {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: 220px 220px;
  gap: var(--space-3);
  margin-bottom: var(--space-12);
}

@media (min-width: 768px) {
  .gallery-preview {
    grid-template-columns: 2fr 1fr 1fr;
    grid-template-rows: 240px 240px;
  }
  .gallery-preview__big { grid-row: span 2; }
}

.gallery-preview__item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  cursor: pointer;
}

.gallery-preview__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-preview__item:hover img { transform: scale(1.06); }

/* -- 13. Testimonios ------------------------------------------------------ */

.testimonios {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}

.testimonio {
  padding: var(--space-8);
  background: var(--vela);
  border-radius: var(--radius-md);
  border: 1px solid var(--gris-100);
}

.testimonio__quote {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-style: italic;
  line-height: 1.5;
  color: var(--volcan);
  margin-bottom: var(--space-4);
}

.testimonio__author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-top: var(--space-4);
  border-top: 1px solid var(--gris-100);
}

.testimonio__avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--atardecer);
  display: grid;
  place-items: center;
  font-weight: 600;
  color: var(--volcan);
}

.testimonio__nombre {
  font-weight: 600;
  font-size: 0.9375rem;
}

.testimonio__origen {
  font-size: 0.8125rem;
  color: var(--gris-400);
}

/* -- 14. Sección clima/seguridad ----------------------------------------- */

.seguridad {
  background: linear-gradient(135deg, var(--lago-profundo) 0%, #0d5d80 100%);
  color: var(--vela);
  padding: var(--space-16) var(--space-8);
  border-radius: var(--radius-lg);
  text-align: center;
}

.seguridad h2 {
  color: var(--vela);
  margin-bottom: var(--space-6);
}

.seguridad__quote {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.625rem);
  font-style: italic;
  max-width: 720px;
  margin: 0 auto var(--space-6);
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.95);
}

.seguridad__lista {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-6);
  max-width: 720px;
  margin: var(--space-8) auto 0;
}

.seguridad__item {
  font-size: 0.875rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.85);
}

.seguridad__item strong { color: var(--atardecer); display: block; margin-bottom: 4px; }

/* -- 15. Cross-sell Todo Vela --------------------------------------------- */

.cross-sell {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
  padding: var(--space-12);
  background: linear-gradient(135deg, var(--espuma) 0%, var(--vela) 100%);
  border: 1px solid var(--gris-100);
  border-radius: var(--radius-lg);
}

@media (min-width: 768px) {
  .cross-sell { grid-template-columns: 1.4fr 1fr; }
}

.cross-sell__media {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

.cross-sell__media img { width: 100%; height: 100%; object-fit: cover; }

.cross-sell h3 { margin-bottom: var(--space-4); }

/* -- 16. Footer ----------------------------------------------------------- */

.site-footer {
  background: var(--volcan);
  color: rgba(255, 255, 255, 0.75);
  padding: var(--space-16) 0 var(--space-8);
  font-size: 0.875rem;
}

.site-footer h4 {
  color: var(--vela);
  margin-bottom: var(--space-4);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.site-footer a { transition: color var(--transition); }
.site-footer a:hover { color: var(--atardecer); }

.footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer__brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--vela);
  margin-bottom: var(--space-3);
}

.footer__lista {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.footer__social a {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.08);
  display: grid;
  place-items: center;
  color: var(--vela);
}

.footer__social a:hover {
  background: var(--atardecer);
  color: var(--volcan);
}

.footer__bottom {
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: 0.8125rem;
}

/* -- 17. WhatsApp flotante ------------------------------------------------ */

.fab-whatsapp {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 90;
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  background: #25D366;
  color: var(--vela);
  display: grid;
  place-items: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.35);
  transition: transform var(--transition);
}

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

.fab-whatsapp svg { width: 28px; height: 28px; }

/* -- 18. Reveal on scroll -------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* -- 19. Utilidades -------------------------------------------------------- */

.text-center { text-align: center; }
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mb-8 { margin-bottom: var(--space-8); }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

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