/* ==========================================================================
   Baja Smart Lock — hoja de estilos de producción
   --------------------------------------------------------------------------
   Sistema de diseño "Industry": tokens + componentes tipo blueprint
   (wireframe cuadrado, borde de un pixel, marcas de registro en las esquinas).
   CSS plano, sin build, sin dependencias.

   Índice
     1. Tokens
     2. Reset y base
     3. Utilidades de layout
     4. Componentes (blueprint, botones, tarjetas, tags)
     5. Secciones de la página
     6. Responsive
   ========================================================================== */


/* ==========================================================================
   1. Tokens
   ========================================================================== */

:root {
  --color-bg: #f2f2f3;
  --color-surface: #e9e9ea;
  --color-text: #1d1f20;
  --color-accent: #5980a6;
  --color-divider: color-mix(in srgb, #1d1f20 16%, transparent);

  /* Rampas tonales generadas en OKLCH sobre una misma escala de luminosidad:
     el mismo paso de cualquier rol coincide en valor visual con los demás. */
  --color-neutral-100: #f5f5f8;
  --color-neutral-200: #e7e7ea;

  --color-accent-100: #eef6ff;
  --color-accent-300: #b5d9fd;
  --color-accent-600: #597ea3;
  --color-accent-700: #416180;
  --color-accent-800: #2c455d;
  --color-accent-900: #1d2d3d;

  --font-heading: "Barlow Condensed", system-ui, sans-serif;
  --font-heading-weight: 600;
  --font-body: "Barlow", system-ui, sans-serif;

  --space-1: 3.4px;
  --space-2: 6.8px;
  --space-3: 10.2px;

  --radius-md: 4px;

  --container: 1180px;
  --gutter: 24px;
  --header-height: 64px;
}


/* ==========================================================================
   2. Reset y base
   ========================================================================== */

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

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  min-height: 100%;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  font-weight: 400;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0 0 var(--space-2);
}

h1 { font-size: 42px; }
h2 { font-size: 32px; }
h3 { font-size: 20px; }

p { margin: 0 0 var(--space-3); }

a {
  color: var(--color-accent-700);
  text-underline-offset: 3px;
}
a:hover { color: var(--color-accent-900); }

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

figure { margin: 0; }

svg { display: block; }

:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

::selection { background: color-mix(in srgb, var(--color-accent) 30%, transparent); }

.text-muted { color: color-mix(in srgb, var(--color-text) 55%, transparent); }

/* Visible para lectores de pantalla, no para la vista. */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* Enlace de salto: visible sólo al tabular. */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 10px 16px;
  background: var(--color-accent-900);
  color: var(--color-neutral-100);
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  text-decoration: none;
}
.skip-link:focus {
  left: 0;
  color: var(--color-neutral-100);
}


/* ==========================================================================
   3. Utilidades de layout
   ========================================================================== */

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section {
  max-width: var(--container);
  margin: 0 auto;
  padding: 88px var(--gutter) 0;
  /* Compensa el encabezado pegajoso al saltar por anclas. */
  scroll-margin-top: calc(var(--header-height) + 16px);
}

.section--catalog { padding-top: 80px; }

/* Bloque de antetítulo: filete corto + etiqueta en versalitas. */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  color: var(--color-accent-700);
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 13px;
  line-height: 1.12;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow__rule {
  flex: none;
  width: 34px;
  height: 1px;
  background: var(--color-accent);
}

.kicker {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 13px;
  line-height: 1.12;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-700);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}


/* ==========================================================================
   4. Componentes
   ========================================================================== */

/* — marco blueprint ——————————————————————————————————————————————————————
   Los componentes son objetos de wireframe: cuadrados, transparentes, con
   filete de un pixel y marcas de registro fuera de la caja. */

.blueprint {
  position: relative;
  border: 1px solid var(--color-divider);
  border-radius: 0;
}

/* Los tratamientos de imagen recortan su superposición (overflow:hidden); el
   marco dibuja sus marcas fuera de la caja, así que aquí debe ganar el marco. */
.blueprint.duotone { overflow: visible; }

.corner {
  position: absolute;
  width: 11px;
  height: 11px;
  color: color-mix(in srgb, var(--color-text) 55%, transparent);
}
.corner::before,
.corner::after {
  content: "";
  position: absolute;
  background: currentColor;
}
.corner::before { left: 5px; top: 0; width: 1px; height: 100%; }
.corner::after  { top: 5px; left: 0; width: 100%; height: 1px; }
.corner--tl { top: -6px; left: -6px; }
.corner--tr { top: -6px; right: -6px; }
.corner--bl { bottom: -6px; left: -6px; }
.corner--br { bottom: -6px; right: -6px; }

/* — duotono: la fotografía se lava con el acento, como una serigrafía — */
.duotone { position: relative; overflow: hidden; }
.duotone::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: var(--color-accent);
  mix-blend-mode: color;
}

/* — botones — */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  text-decoration: none;
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 14px;
  line-height: 1.2;
  color: var(--color-text);
  background: transparent;
  border: 1px solid var(--color-divider);
  border-radius: 0;
  padding: var(--space-2) calc(var(--space-3) * 1.2);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
}
.btn-primary:hover { background: var(--color-accent-600); color: var(--color-bg); }
.btn-primary:active { background: var(--color-accent-700); }

.btn-secondary:hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); color: var(--color-text); }
.btn-secondary:active { background: color-mix(in srgb, var(--color-text) 14%, transparent); }

.btn-block { width: 100%; margin-top: var(--space-2); }

/* Tamaños */
.btn--md { padding: 11px 20px; font-size: 15px; }
.btn--lg { padding: 12px 22px; font-size: 16px; }
.btn--xl { padding: 14px 30px; font-size: 18px; }

/* Variantes sobre fondo oscuro */
.btn--invert {
  background: var(--color-neutral-100);
  color: var(--color-accent-900);
  border-color: var(--color-neutral-100);
}
.btn--invert:hover { background: #fff; color: var(--color-accent-900); }

.btn--ghost-light {
  color: var(--color-neutral-100);
  border-color: var(--color-accent-700);
}
.btn--ghost-light:hover {
  background: color-mix(in srgb, var(--color-neutral-100) 12%, transparent);
  color: var(--color-neutral-100);
}

/* — tarjetas — */
.card {
  display: flex;
  flex-direction: column;
  background: transparent;
  border: 1px solid var(--color-divider);
  border-radius: 0;
}

/* — tags — */
.tag {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  letter-spacing: 0.02em;
  padding: 3px 10px;
  border-radius: 0;
}
.tag-accent { background: var(--color-accent-100); color: var(--color-accent-800); }
.tag--outline-light {
  border: 1px solid var(--color-accent-700);
  color: var(--color-neutral-100);
}


/* ==========================================================================
   5. Secciones
   ========================================================================== */

/* — encabezado —————————————————————————————————————————————————————————— */

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-divider);
}

.header__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: var(--header-height);
  flex-wrap: wrap;
}

.brand {
  margin-right: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}
.brand:hover { color: inherit; }

.brand__mark {
  flex: none;
  width: 26px;
  height: 26px;
}

/* El nombre y la región van por línea base entre sí, no con la marca. */
.brand__text {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.brand__name {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 21px;
  letter-spacing: 0.02em;
}

.brand__region {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-700);
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

.nav a {
  font-family: var(--font-heading);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  color: inherit;
}
.nav a:hover { color: var(--color-accent-700); }

/* — hero ————————————————————————————————————————————————————————————————— */

.hero {
  max-width: var(--container);
  margin: 0 auto;
  padding: 72px var(--gutter) 64px;
  scroll-margin-top: var(--header-height);
}

.hero__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 56px;
  align-items: center;
}

.hero__copy { min-width: 0; }
.hero .eyebrow { margin-bottom: 20px; }

.hero__title {
  font-size: clamp(40px, 6vw, 62px);
  margin: 0 0 20px;
  text-wrap: balance;
}

.hero__lead {
  font-size: 17px;
  line-height: 1.6;
  max-width: 46ch;
  margin: 0 0 14px;
}
.hero__lead:last-of-type { margin-bottom: 32px; }

.hero__figure { min-width: 0; }

.hero__img {
  width: 100%;
  height: clamp(340px, 46vw, 520px);
  object-fit: cover;
  object-position: 30% center;
}

/* — franja de métodos de apertura ——————————————————————————————————————— */

.strip-band {
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}

.strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
}

.strip__item {
  padding: 28px 22px;
  border-right: 1px solid var(--color-divider);
}
.strip__item:first-child { padding-left: 0; }
.strip__item:last-child {
  padding-right: 0;
  border-right: none;
}

.strip__icon {
  width: 22px;
  height: 22px;
  margin-bottom: 12px;
  color: var(--color-accent-700);
}

.strip__title {
  margin: 0 0 4px;
  font-size: 18px;
}

.strip__text {
  margin: 0;
  font-size: 13px;
}

/* — catálogo ———————————————————————————————————————————————————————————— */

.section__title { font-size: clamp(30px, 4vw, 42px); margin: 0 0 12px; }

.section__intro {
  max-width: 60ch;
  font-size: 16px;
  margin: 0 0 8px;
}

.section__note {
  max-width: 60ch;
  font-size: 14px;
  margin: 0 0 44px;
}

.tier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.tier { padding: 0; gap: 0; }

.tier__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-divider);
}

.tier__num {
  font-family: var(--font-heading);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--color-accent);
}

.tier__media {
  height: 230px;
  padding: 16px;
  background: var(--color-neutral-100);
  display: flex;
  align-items: center;
  justify-content: center;
}

.tier__img {
  max-height: 198px;
  max-width: 100%;
  width: auto;
  object-fit: contain;
}
.tier__img--cover { object-fit: cover; }

.tier__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 18px 16px 20px;
  border-top: 1px solid var(--color-divider);
}

.tier__title {
  margin: 0 0 8px;
  font-size: 24px;
}

.tier__text {
  margin: 0 0 16px;
  font-size: 14px;
}

.tier__specs {
  margin: 0 0 18px;
  font-size: 12.5px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 12px;
}
.tier__specs dt { color: color-mix(in srgb, var(--color-text) 55%, transparent); }
.tier__specs dd { margin: 0; }

.tier__cta { margin-top: auto; }

.note {
  margin-top: 34px;
  padding: 22px 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px 28px;
  align-items: baseline;
}

.note__title { margin: 0; font-size: 18px; }

.note__text {
  margin: 0;
  font-size: 14px;
  flex: 1;
  min-width: 260px;
}

/* — instalación ————————————————————————————————————————————————————————— */

.section__lead {
  max-width: 58ch;
  font-size: 16px;
  margin: 0 0 44px;
}

.steps-frame { padding: 0; }

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
}

.step {
  padding: 30px 26px;
  border-right: 1px solid var(--color-divider);
}
.step:last-child { border-right: none; }

.step__num {
  font-family: var(--font-heading);
  font-size: 38px;
  line-height: 1;
  color: var(--color-accent);
  margin-bottom: 14px;
}

.step__title { margin: 0 0 6px; }

.step__text { margin: 0; font-size: 14px; }

/* — cobertura ——————————————————————————————————————————————————————————— */

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 48px;
}
.split > * { min-width: 0; }

.split__copy .section__title { margin-bottom: 16px; }

.split__text {
  font-size: 16px;
  max-width: 46ch;
  margin: 0 0 12px;
}
.split__text:last-of-type { margin-bottom: 24px; }

.mini-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 24px;
  align-content: start;
}

.mini-card { padding: 20px; }
.mini-card h3 { margin: 0 0 6px; }
.mini-card p { margin: 0; font-size: 13px; }

/* — respaldo de fábrica (bloque oscuro) ————————————————————————————————— */

.dark {
  margin: 88px 0 0;
  background: var(--color-accent-900);
  color: var(--color-neutral-100);
}

.dark__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 64px var(--gutter);
}

.dark .kicker { color: var(--color-accent-300); }

.dark__title {
  font-size: clamp(28px, 3.6vw, 38px);
  margin: 0 0 8px;
  color: var(--color-neutral-100);
  max-width: 24ch;
}

.dark__lead {
  max-width: 56ch;
  font-size: 16px;
  margin: 0 0 40px;
  color: var(--color-neutral-200);
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 32px;
  margin: 0 0 44px;
  padding: 0;
  list-style: none;
}

.stat__value {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 40px;
  line-height: 1;
  margin: 0 0 4px;
}

.stat__label {
  margin: 0;
  font-size: 13px;
  color: var(--color-accent-300);
}

.certs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  padding-top: 28px;
  border-top: 1px solid var(--color-accent-800);
}

.certs__label {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-300);
  margin-right: 8px;
}

/* — garantía ———————————————————————————————————————————————————————————— */

.split--support { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 40px; }
.split--support .section__title { max-width: 18ch; margin-bottom: 16px; }

.stack {
  display: grid;
  gap: 20px;
  align-content: start;
}

.support-card { padding: 22px; }
.support-card h3 { margin: 0 0 6px; }
.support-card p { margin: 0; font-size: 14px; }

/* — mayoreo ————————————————————————————————————————————————————————————— */

.panel { padding: 48px 40px; }

.panel__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 40px;
  align-items: center;
}
.panel__grid > * { min-width: 0; }

.panel__title {
  font-size: clamp(28px, 3.6vw, 38px);
  margin: 0 0 14px;
  max-width: 20ch;
}

.panel__text {
  font-size: 16px;
  max-width: 50ch;
  margin: 0;
}

.dash-list {
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.dash-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 15px;
}

.dash-list li::before {
  content: "—";
  color: var(--color-accent);
  font-family: var(--font-heading);
}

/* — preguntas frecuentes ———————————————————————————————————————————————— */

.section__title--spaced { margin-bottom: 40px; }

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 36px 56px;
}

.faq-item h3 { margin: 0 0 8px; }
.faq-item p { margin: 0; font-size: 14.5px; }

/* — llamada final ——————————————————————————————————————————————————————— */

.cta {
  max-width: var(--container);
  margin: 88px auto 0;
  padding: 0 var(--gutter);
}

.cta__panel {
  padding: 56px 40px;
  background: var(--color-accent-900);
  color: var(--color-neutral-100);
  text-align: center;
}

.cta__title {
  font-size: clamp(30px, 4.4vw, 46px);
  margin: 0 0 12px;
  color: var(--color-neutral-100);
}

.cta__text {
  font-size: 16px;
  margin: 0 auto 32px;
  max-width: 46ch;
  color: var(--color-neutral-200);
}

.cta .actions { justify-content: center; }

/* — pie ————————————————————————————————————————————————————————————————— */

.footer {
  max-width: var(--container);
  margin: 0 auto;
  padding: 56px var(--gutter) 48px;
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-divider);
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 20px;
  margin: 0 0 8px;
}

.footer__mark {
  flex: none;
  width: 24px;
  height: 24px;
}

.footer__about {
  margin: 0;
  font-size: 13.5px;
  max-width: 34ch;
}

.footer__list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.footer__list li { font-size: 14px; }
.footer__list li + li { margin-top: 4px; }
.footer__list a { text-decoration: none; }
.footer__list a:hover { text-decoration: underline; }

.footer__fineprint {
  margin: 0;
  font-size: 13.5px;
  max-width: 30ch;
}

.footer__legal {
  margin: 24px 0 0;
  font-size: 12px;
}

/* — barra fija móvil ———————————————————————————————————————————————————— */

.mobile-bar {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--color-divider);
  border-top: 1px solid var(--color-divider);
  padding-bottom: env(safe-area-inset-bottom);
}

.mobile-bar a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 56px;
  padding: 14px 12px;
  text-decoration: none;
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 17px;
  letter-spacing: 0.03em;
}

.mobile-bar__call {
  background: var(--color-accent);
  color: var(--color-bg);
}
.mobile-bar__call:hover { color: var(--color-bg); }

.mobile-bar__wa {
  background: var(--color-bg);
  color: var(--color-text);
}
.mobile-bar__wa:hover { color: var(--color-text); }


/* ==========================================================================
   6. Responsive
   ========================================================================== */

@media (max-width: 1080px) {
  .tier-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 1000px) {
  .strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 28px;
  }
  .strip__item {
    border-right: none;
    border-bottom: 1px solid var(--color-divider);
    padding-left: 0;
    padding-right: 0;
  }
  .strip__item:last-child { border-bottom: none; }

  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .step:nth-child(2n) { border-right: none; }
  .step:nth-child(-n + 2) { border-bottom: 1px solid var(--color-divider); }
}

@media (max-width: 860px) {
  .nav { display: none; }
  .mobile-bar { display: grid; }
  /* Deja aire bajo el pie para que la barra fija no tape el contenido. */
  .footer { padding-bottom: 104px; }
}

@media (max-width: 620px) {
  :root { --gutter: 18px; }

  .brand__mark { width: 22px; height: 22px; }
  .brand__name { font-size: 17px; }

  .section { padding-top: 60px; }
  .hero { padding: 40px var(--gutter) 48px; }
  .hero__grid { gap: 34px; }

  .cta { margin-top: 60px; }
  .dark__inner { padding: 48px var(--gutter); }

  .panel { padding: 30px 20px; }
  .cta__panel { padding: 40px 22px; }

  .tier-grid { grid-template-columns: 1fr; }

  .strip,
  .steps { grid-template-columns: 1fr; }

  .step {
    border-right: none;
    border-bottom: 1px solid var(--color-divider);
    padding: 26px 20px;
  }
  .step:last-child { border-bottom: none; }
}