/* ==========================================================================
   Kosten Alas · un servicio de Terramin
   Identidad visual: manual de marca Terramin (negro/naranja, tipografía Geist
   como implementación de "Gest"). Ver ../CLAUDE.md.
   ========================================================================== */

/* Geist: archivos reales del manual de marca de Terramin (assets/fonts), no CDN */
@font-face {
  font-family: 'Geist';
  src: url('../assets/fonts/Geist-Light.woff2') format('woff2');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist';
  src: url('../assets/fonts/Geist-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist';
  src: url('../assets/fonts/Geist-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist';
  src: url('../assets/fonts/Geist-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist';
  src: url('../assets/fonts/Geist-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist';
  src: url('../assets/fonts/Geist-ExtraBold.woff2') format('woff2');
  font-weight: 800;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Marca */
  --negro: #161616;
  --negro-suave: #1f1f1f;
  --naranja: #fd4207;
  --naranja-oscuro: #d43804;
  --gris-claro: #f2f2f2;
  --blanco: #ffffff;

  /* Texto: solo negro, blanco y naranja (regla de marca), sin grises */
  --texto-sobre-claro: #161616;
  --texto-sobre-claro-suave: #161616;
  --texto-sobre-oscuro: #ffffff;
  --texto-sobre-oscuro-suave: #ffffff;

  /* Superficies claras/oscuras: usadas por las secciones que sí cambian con
     el toggle (intro, por qué, contacto). Las secciones con foto (hero,
     servicios, zona) y el footer/nav quedan siempre oscuras y no usan estas
     variables, así que no las tocamos con el toggle. */
  --surface: var(--gris-claro);
  --surface-alt: var(--blanco);
  --surface-alt-input: var(--gris-claro);
  --on-surface: var(--texto-sobre-claro);
  --on-surface-strong: var(--negro);
  --border-soft: rgba(22, 22, 22, 0.12);
  --border-soft-2: rgba(22, 22, 22, 0.15);
  --border-soft-3: rgba(22, 22, 22, 0.16);

  /* Tipografía */
  --font-display: 'Geist', -apple-system, sans-serif;
  --font-body: 'Geist', -apple-system, sans-serif;

  /* Escala */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.375rem;
  --text-2xl: 1.75rem;
  --text-3xl: 2.25rem;
  --text-4xl: 2.9rem;
  --text-5xl: 3.75rem;
  --text-6xl: 5rem;

  /* 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;

  --container-max: 1240px;
  --section-pad: clamp(4.5rem, 9vw, 8rem);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);

  /* Corte de marca: mismo ángulo (52° desde la horizontal) que las montañas
     del isologotipo de Terramin, medido sobre el logo real. Se usa en cajas
     de ícono y contenedores de foto en vez de border-radius. */
  --cut-corner: polygon(0 0, calc(100% - 7px) 0, 100% 9px, 100% 100%, 0 100%);
  --cut-corner-2: polygon(0 9px, 7px 0, 100% 0, 100% 100%, 0 100%);
  --cut-corner-lg: polygon(0 0, calc(100% - 28px) 0, 100% 36px, 100% 100%, 0 100%);
  --cut-corner-lg-2: polygon(0 36px, 28px 0, 100% 0, 100% 100%, 0 100%);
  --cut-corner-lg-br: polygon(0 0, 100% 0, 100% calc(100% - 36px), calc(100% - 28px) 100%, 0 100%);
}

html { color-scheme: light; }

/* Modo oscuro: solo redefine las superficies, no toca --negro/--blanco fijos
   que usan hero, servicios, zona, footer y nav (esas quedan siempre oscuras). */
html[data-theme="dark"] {
  color-scheme: dark;
  --surface: var(--negro);
  --surface-alt: var(--negro-suave);
  --surface-alt-input: rgba(255, 255, 255, 0.06);
  --on-surface: var(--texto-sobre-oscuro);
  --on-surface-strong: var(--blanco);
  --border-soft: rgba(255, 255, 255, 0.14);
  --border-soft-2: rgba(255, 255, 255, 0.18);
  --border-soft-3: rgba(255, 255, 255, 0.2);
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--surface);
  color: var(--on-surface);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color 0.35s var(--ease), color 0.35s var(--ease);
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea, select { font: inherit; color: inherit; }

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
  padding-left: calc(clamp(1.25rem, 4vw, 2.5rem) + var(--side-nav-reserve, 0px));
}

/* Reserva justa el espacio que le falta al margen natural del container para
   que el texto nunca quede debajo de la navegación lateral (visible desde
   1151px). Por encima de ~1536px el margen natural ya alcanza y esto no suma nada. */
@media (min-width: 1151px) {
  :root { --side-nav-reserve: max(0px, 150px - (100vw - 1240px) / 2); }
}

/* ---- Tipografía compartida ---- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.05;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--naranja);
}

.eyebrow::before {
  content: '';
  width: 0;
  height: 0;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  border-left: 7px solid var(--naranja);
  flex-shrink: 0;
}

.eyebrow--light { color: var(--naranja); }

.section-head { max-width: 44rem; margin-bottom: var(--space-16); }
.section-head h2 { font-size: var(--text-4xl); margin-top: var(--space-4); }
.section-head p { font-size: var(--text-lg); color: var(--texto-sobre-claro-suave); margin-top: var(--space-4); max-width: 38rem; }
.section-head--dark p { color: var(--texto-sobre-oscuro-suave); }
.section-head--dark h2 { color: var(--blanco); }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head--center p { margin-inline: auto; }

/* ---- Botones ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.95rem 1.75rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
  transition: transform 0.25s var(--ease), background-color 0.25s var(--ease), box-shadow 0.25s var(--ease), border-color 0.25s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }

.btn--primary {
  background: var(--naranja);
  color: var(--blanco);
}
.btn--primary:hover { background: var(--naranja-oscuro); transform: translateY(-2px); }

/* ==========================================================================
   Navegación
   ========================================================================== */
.nav {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  padding: var(--space-4) 0;
  transition: background-color 0.35s var(--ease), padding 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; }
.nav.is-scrolled {
  background: rgba(22, 22, 22, 0.86);
  backdrop-filter: blur(10px);
  padding: var(--space-3) 0;
  box-shadow: 0 8px 30px -12px rgba(0,0,0,0.5);
}
.nav__logo img { height: 76px; width: auto; transition: height 0.35s var(--ease); }
.nav.is-scrolled .nav__logo img { height: 56px; }
.nav__links { display: flex; align-items: center; gap: var(--space-8); }
.nav__links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--texto-sobre-oscuro-suave);
  transition: color 0.2s var(--ease);
}
.nav__links a:hover { color: var(--naranja); }
.nav__cta { display: flex; align-items: center; gap: var(--space-4); }
.nav__toggle { display: none; color: var(--blanco); padding: 10px; margin: -10px -10px -10px 0; }
.nav__toggle svg { width: 24px; height: 24px; display: block; }

.theme-toggle {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  color: var(--blanco);
  transition: color 0.2s var(--ease);
}
.theme-toggle:hover { color: var(--naranja); }
.theme-toggle:focus-visible { outline: 2px solid var(--naranja); outline-offset: 2px; }
.theme-toggle svg { width: 20px; height: 20px; display: block; }
.theme-toggle__icon--sun { display: none; }
html[data-theme="dark"] .theme-toggle__icon--sun { display: block; }
html[data-theme="dark"] .theme-toggle__icon--moon { display: none; }

/* ==========================================================================
   Navegación lateral (ancla a secciones, solo desktop ancho)
   ========================================================================== */
.side-nav {
  position: fixed;
  left: var(--space-6);
  top: 50%;
  transform: translateY(-50%);
  z-index: 80;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.side-nav__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding-block: 0.6rem;
  position: relative;
}
.side-nav__item::before {
  content: '';
  position: absolute;
  left: 3px;
  top: -50%;
  width: 1px;
  height: 100%;
  background: rgba(22, 22, 22, 0.15);
}
.side-nav__item:first-child::before { display: none; }
.side-nav__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 1px solid rgba(22, 22, 22, 0.55);
  flex-shrink: 0;
  transition: background-color 0.3s var(--ease), border-color 0.3s var(--ease);
}
.side-nav__label {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--texto-sobre-claro-suave);
  white-space: nowrap;
  transition: color 0.3s var(--ease);
}
.side-nav__item.is-active .side-nav__dot { background: var(--naranja); border-color: var(--naranja); }
.side-nav__item.is-active .side-nav__label { color: var(--negro); font-weight: 600; }

.side-nav.is-on-dark .side-nav__item::before { background: rgba(255, 255, 255, 0.3); }
.side-nav.is-on-dark .side-nav__dot { border-color: var(--blanco); }
.side-nav.is-on-dark .side-nav__label { color: var(--blanco); }
.side-nav.is-on-dark .side-nav__item.is-active .side-nav__label { color: var(--blanco); }

@media (max-width: 1150px) {
  .side-nav { display: none; }
}

@media (max-width: 860px) {
  .nav__logo img { height: 56px; }
  .nav.is-scrolled .nav__logo img { height: 44px; }
  .nav__links {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(22,22,22,0.97);
    backdrop-filter: blur(10px);
    padding: var(--space-6) clamp(1.25rem, 4vw, 2.5rem);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.35s var(--ease), opacity 0.3s var(--ease), padding 0.35s var(--ease);
  }
  .nav__links a { padding: var(--space-2) 0; font-size: var(--text-base); }
  .nav__links.is-open { max-height: 20rem; opacity: 1; padding-block: var(--space-6); }
  .nav__toggle { display: block; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  color: var(--blanco);
  background: var(--negro);
  overflow: hidden;
}
.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 38%;
  transform: scale(1.08);
  filter: saturate(0.8) brightness(0.5);
}
.hero__media::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(22,22,22,0.45) 0%, rgba(22,22,22,0.5) 28%, rgba(22,22,22,0.82) 58%, var(--negro) 100%);
}
.hero__content {
  position: relative;
  z-index: 2;
  padding-block: calc(var(--space-32) + 3rem) var(--space-16);
  width: 100%;
}
.hero h1 {
  font-size: clamp(2.75rem, 6.4vw, var(--text-6xl));
  max-width: 18ch;
  margin-bottom: var(--space-6);
}
.hero h1 em {
  font-style: normal;
  color: var(--naranja);
}
.hero__lede {
  font-size: var(--text-lg);
  max-width: 42ch;
  color: var(--blanco);
  margin-bottom: var(--space-8);
}
.hero__actions { display: flex; gap: var(--space-4); flex-wrap: wrap; margin-bottom: var(--space-16); }

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: var(--space-8);
  border-top: 1px solid rgba(242,242,242,0.16);
  padding-top: var(--space-6);
  max-width: 42rem;
}
.hero__stats dt { font-size: var(--text-2xl); font-family: var(--font-display); font-weight: 700; color: var(--blanco); }
.hero__stats dd { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.1em; color: var(--blanco); margin-top: var(--space-1); }

@media (max-width: 640px) {
  .hero__stats { grid-template-columns: 1fr; gap: var(--space-4); }
}

/* ==========================================================================
   Intro
   ========================================================================== */
.intro {
  background: var(--surface);
  padding-block: var(--section-pad);
  transition: background-color 0.35s var(--ease);
}
.intro__grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: var(--space-24);
  align-items: start;
}
.intro h2 { font-size: var(--text-3xl); margin-top: var(--space-4); }
.intro__body p { font-size: var(--text-lg); color: var(--on-surface); margin-bottom: var(--space-6); }
.intro__body p:last-child { margin-bottom: 0; }
.intro__body strong { color: var(--on-surface-strong); font-weight: 600; }

@media (max-width: 900px) {
  .intro__grid { grid-template-columns: 1fr; gap: var(--space-8); }
}

/* ==========================================================================
   Servicios
   ========================================================================== */
.servicios { background: var(--negro); padding-block: var(--section-pad); color: var(--blanco); position: relative; }
.servicios__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(242,242,242,0.1);
  border: 1px solid rgba(242,242,242,0.1);
}
.servicio-card {
  background: var(--negro);
  min-height: 22rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  position: relative;
  overflow: hidden;
  clip-path: var(--cut-corner-lg);
}
.servicio-card__media { position: absolute; inset: 0; z-index: 0; }
.servicio-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) brightness(0.75);
  transition: transform 0.5s var(--ease), filter 0.5s var(--ease);
}
.servicio-card__media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(22,22,22,0.15) 0%, rgba(22,22,22,0.55) 55%, rgba(22,22,22,0.95) 100%);
}
.servicio-card:hover .servicio-card__media img { transform: scale(1.06); filter: saturate(0.95) brightness(0.65); }
.servicio-card__num {
  position: absolute;
  z-index: 2;
  top: var(--space-6);
  right: var(--space-6);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--blanco);
  letter-spacing: 0.05em;
}
.servicio-card__body { position: relative; z-index: 2; padding: var(--space-8); }
.servicio-card h3 { font-size: var(--text-xl); font-weight: 700; color: var(--blanco); }
.servicio-card p { font-size: var(--text-sm); color: var(--blanco); margin-top: var(--space-2); }

@media (max-width: 900px) {
  .servicios__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .servicios__grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Diferenciales / por qué elegirnos
   ========================================================================== */
.diferenciales {
  background: var(--surface);
  padding-block: var(--section-pad);
  transition: background-color 0.35s var(--ease);
}
.diferenciales__layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-24);
  align-items: center;
}
.diferenciales__media {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  clip-path: var(--cut-corner-lg);
}
.diferenciales__media img { width: 100%; height: 100%; object-fit: cover; }
.diferenciales__media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(253,66,7,0.18), transparent 55%);
  mix-blend-mode: multiply;
}
.diferenciales__list { display: flex; flex-direction: column; gap: var(--space-6); margin-top: var(--space-8); }
.diferencial-item { display: flex; gap: var(--space-4); align-items: flex-start; padding-bottom: var(--space-6); border-bottom: 1px solid var(--border-soft); }
.diferencial-item:last-child { border-bottom: none; padding-bottom: 0; }
.diferencial-item h3 { font-size: var(--text-lg); font-weight: 600; margin-bottom: var(--space-1); }
.diferencial-item p { font-size: var(--text-sm); color: var(--on-surface); }

@media (max-width: 900px) {
  .diferenciales__layout { grid-template-columns: 1fr; gap: var(--space-12); }
  .diferenciales__media { aspect-ratio: 16/10; }
}

/* ==========================================================================
   Zona de operación
   ========================================================================== */
.zona {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  color: var(--blanco);
  background: var(--negro);
  overflow: hidden;
}
.zona__media { position: absolute; inset: 0; }
.zona__media img { width: 100%; height: 100%; object-fit: cover; filter: brightness(0.55) saturate(0.9); }
.zona__media::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(22,22,22,0.92) 0%, rgba(22,22,22,0.55) 45%, rgba(22,22,22,0.2) 100%);
}
.zona__content { position: relative; z-index: 1; padding-block: var(--space-24); max-width: 34rem; }
.zona h2 { font-size: var(--text-3xl); margin-top: var(--space-4); margin-bottom: var(--space-6); }
.zona p { font-size: var(--text-lg); color: var(--blanco); margin-bottom: var(--space-8); }
.zona__provincias { display: flex; gap: var(--space-8); }
.zona__provincias div strong { display: block; font-family: var(--font-display); font-size: var(--text-xl); }
.zona__provincias div span { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.1em; color: var(--texto-sobre-oscuro-suave); }

/* ==========================================================================
   Contacto
   ========================================================================== */
.contacto { background: var(--surface); padding-block: var(--section-pad); transition: background-color 0.35s var(--ease); }
.contacto__layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: var(--space-24); }
.contacto__info h2 { font-size: var(--text-3xl); margin-top: var(--space-4); }
.contacto__info p { font-size: var(--text-lg); color: var(--on-surface); margin-top: var(--space-4); margin-bottom: var(--space-8); max-width: 30rem; }

.contacto__channel {
  display: flex;
  gap: var(--space-4);
  align-items: center;
  padding: var(--space-4) 0;
  border-top: 1px solid var(--border-soft);
}
.contacto__channel:last-of-type { border-bottom: 1px solid var(--border-soft); }
.contacto__channel-icon { width: 40px; height: 40px; flex-shrink: 0; display: grid; place-items: center; background: var(--blanco); border: 1px solid rgba(22,22,22,0.15); color: var(--naranja); clip-path: var(--cut-corner); }
.contacto__channel-icon svg { width: 19px; height: 19px; }
.contacto__channel div span { display: block; font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.08em; color: var(--on-surface); margin-bottom: 2px; }
.contacto__channel div strong { font-size: var(--text-base); font-weight: 600; }

.form {
  background: var(--surface-alt);
  padding: var(--space-8);
  clip-path: var(--cut-corner-lg-br);
  border-top: 3px solid var(--naranja);
  box-shadow: 0 30px 60px -30px rgba(22,22,22,0.25);
  transition: background-color 0.35s var(--ease);
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.field { margin-bottom: var(--space-4); }
.field label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--on-surface);
  margin-bottom: var(--space-2);
}
.field input, .field select, .field textarea {
  width: 100%;
  border: 1px solid var(--border-soft-3);
  border-radius: 3px;
  padding: 0.75rem 0.9rem;
  background: var(--surface-alt-input);
  font-size: var(--text-sm);
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--naranja);
  background: var(--surface-alt);
}
.field textarea { resize: vertical; min-height: 96px; }
.field--honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.form__submit { width: 100%; justify-content: center; margin-top: var(--space-2); }
.form__note { font-size: var(--text-xs); color: var(--on-surface); margin-top: var(--space-4); text-align: center; }
.form__status { font-size: var(--text-sm); margin-top: var(--space-4); display: none; padding: var(--space-3) var(--space-4); border-radius: 3px; }
.form__status.is-visible { display: block; }
.form__status--ok { background: rgba(253,66,7,0.08); color: var(--naranja-oscuro); border: 1px solid rgba(253,66,7,0.3); }
.form__status--error { background: rgba(200,40,20,0.08); color: #a3220f; border: 1px solid rgba(200,40,20,0.3); }

@media (max-width: 900px) {
  .contacto__layout { grid-template-columns: 1fr; gap: var(--space-12); }
}
@media (max-width: 520px) {
  .form__row { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Botón flotante de WhatsApp
   ========================================================================== */
.whatsapp-float {
  position: fixed;
  right: var(--space-6);
  bottom: var(--space-6);
  z-index: 90;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--naranja);
  color: var(--blanco);
  display: grid;
  place-items: center;
  transition: transform 0.3s var(--ease);
}
.whatsapp-float:hover { transform: scale(1.08); }
.whatsapp-float svg { width: 26px; height: 26px; }

/* ==========================================================================
   Footer
   ========================================================================== */
.footer { background: var(--negro); color: var(--texto-sobre-oscuro-suave); padding-block: var(--space-16) var(--space-8); }
.footer__top { display: flex; justify-content: space-between; gap: var(--space-16); flex-wrap: wrap; padding-bottom: var(--space-12); border-bottom: 1px solid rgba(242,242,242,0.1); margin-bottom: var(--space-8); }
.footer__brand img { height: 110px; margin-bottom: var(--space-4); }
.footer__brand p { max-width: 26rem; font-size: var(--text-sm); }
.footer__cols { display: flex; gap: var(--space-16); flex-wrap: wrap; }
.footer__col h4 { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.12em; color: var(--blanco); margin-bottom: var(--space-4); }
.footer__col a, .footer__col span { display: block; font-size: var(--text-sm); margin-bottom: var(--space-3); }
.footer__col a:hover { color: var(--naranja); }
.footer__bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--space-4); font-size: var(--text-xs); }
.footer__credit { display: flex; align-items: center; gap: var(--space-2); text-decoration: none; }
.footer__credit span { font-size: var(--text-xs); color: rgba(255,255,255,0.62); white-space: nowrap; transition: color 0.2s var(--ease); }
.footer__credit img { height: 16px; width: auto; }
.footer__credit:hover span { color: var(--naranja); }

/* ==========================================================================
   Sello de sección: el isologotipo real, centrado sobre el corte entre una
   sección oscura y la siguiente clara. Reemplaza al divisor en zigzag
   (descartado: se veía como una textura repetida, no como una marca).
   ========================================================================== */
.section-mark {
  position: relative;
  z-index: 4;
  width: 52px;
  height: 52px;
  margin: -26px auto 0;
  background: var(--negro);
  border-radius: 50%;
  display: grid;
  place-items: center;
  box-shadow: 0 10px 24px -8px rgba(22,22,22,0.4);
}
.section-mark img { width: 24px; height: auto; }

@media (max-width: 640px) {
  .section-mark { width: 42px; height: 42px; margin-top: -21px; }
  .section-mark img { width: 19px; }
}

/* ==========================================================================
   Reveal on scroll
   ========================================================================== */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }
[data-reveal-group] > * { transition-delay: calc(var(--i, 0) * 90ms); }

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ==========================================================================
   Responsive: paddings de hero y secciones
   ========================================================================== */
@media (max-width: 620px) {
  .hero__content { padding-top: calc(var(--space-24) + 2rem); }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .footer__top { flex-direction: column; gap: var(--space-8); }
}