/* ============================================================
   XL Contingente Antártico — Estilos comunes
   Identidad: minimalismo, azul antártico profundo, mucho aire.
   ============================================================ */

:root {
  --azul-antartico: #0E1F3F;
  --azul-medio:    #1F3A6B;
  --azul-claro:    #8AA0BD;
  --hielo:         #E8EEF5;
  --blanco:        #FFFFFF;
  --negro:         #0A0A0A;
  --gris-texto:    #3A4555;
  --gris-suave:    #6B7785;
  --borde:         #DDE3EC;

  --serif:  Georgia, "Times New Roman", serif;
  --sans:   -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;

  --maxw: 1180px;
  --transition: 0.25s ease;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--gris-texto);
  background: var(--blanco);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--azul-medio);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--azul-antartico); }

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

/* ---------- Tipografía ---------- */

h1, h2, h3, h4 {
  color: var(--azul-antartico);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 0.6em;
}

h1 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.4rem, 2.4vw, 1.9rem); }
h3 { font-size: 1.15rem; }

.serif { font-family: var(--serif); font-style: italic; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: 0.75rem;
  color: var(--azul-claro);
  font-weight: 600;
  margin-bottom: 1rem;
}

/* ---------- Layout ---------- */

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: clamp(60px, 10vw, 120px) 0;
}

.section--alt { background: var(--hielo); }
.section--dark {
  background: var(--azul-antartico);
  color: var(--hielo);
}
.section--dark h1, .section--dark h2, .section--dark h3 { color: var(--blanco); }
.section--dark .eyebrow { color: var(--azul-claro); }

/* ---------- Header / Nav ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--borde);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  max-width: var(--maxw);
  margin: 0 auto;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--azul-antartico);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}
.nav__brand img { height: 36px; width: auto; }
.nav__brand span { line-height: 1.1; }
.nav__brand small {
  display: block;
  font-weight: 400;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gris-suave);
}

.nav__menu {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav__menu a {
  color: var(--gris-texto);
  font-size: 0.92rem;
  font-weight: 500;
  position: relative;
  padding: 6px 0;
}
.nav__menu a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1.5px;
  background: var(--azul-antartico);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.nav__menu a:hover::after,
.nav__menu a.is-active::after { transform: scaleX(1); }

.nav__toggle {
  display: none;
  background: none;
  border: 0;
  font-size: 1.4rem;
  color: var(--azul-antartico);
  cursor: pointer;
}

@media (max-width: 760px) {
  .nav__menu { display: none; }
  .nav__menu.is-open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    flex-direction: column;
    background: var(--blanco);
    padding: 18px 24px;
    border-bottom: 1px solid var(--borde);
    gap: 14px;
  }
  .nav__toggle { display: block; }
}

/* ---------- Hero ---------- */

.hero {
  background: var(--azul-antartico);
  color: var(--hielo);
  padding: clamp(80px, 14vw, 160px) 0 clamp(80px, 12vw, 140px);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(138,160,189,0.18), transparent 55%),
    radial-gradient(ellipse at 80% 100%, rgba(255,255,255,0.06), transparent 50%);
  pointer-events: none;
}

.hero__inner { position: relative; z-index: 1; }

.hero__logo {
  width: 240px;
  height: auto;
  margin: 0 auto 32px;
  opacity: 0.95;
}

.hero__title {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(3rem, 9vw, 6.5rem);
  color: var(--blanco);
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
}

.hero__subtitle {
  margin: 16px 0 0;
  font-size: clamp(0.9rem, 1.4vw, 1.05rem);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--azul-claro);
  font-weight: 500;
}

.hero__lead {
  margin: 36px auto 0;
  max-width: 640px;
  font-size: 1.05rem;
  color: var(--hielo);
  opacity: 0.85;
}

.hero__cta {
  margin-top: 44px;
  display: inline-flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
}

/* ---------- Botones ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 2px;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
}
.btn--primary {
  background: var(--blanco);
  color: var(--azul-antartico);
  border-color: var(--blanco);
}
.btn--primary:hover {
  background: transparent;
  color: var(--blanco);
  border-color: var(--blanco);
}
.btn--ghost {
  background: transparent;
  color: var(--blanco);
  border-color: rgba(255,255,255,0.4);
}
.btn--ghost:hover {
  border-color: var(--blanco);
  color: var(--blanco);
}
.btn--dark {
  background: var(--azul-antartico);
  color: var(--blanco);
  border-color: var(--azul-antartico);
}
.btn--dark:hover {
  background: transparent;
  color: var(--azul-antartico);
}

/* ---------- Cards / grids ---------- */

.grid {
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: var(--blanco);
  border: 1px solid var(--borde);
  padding: 36px 32px;
  border-radius: 4px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.card:hover {
  border-color: var(--azul-antartico);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -16px rgba(14,31,63,0.18);
}
.card h3 { margin: 0; }
.card p { margin: 0; color: var(--gris-suave); font-size: 0.95rem; }

.card__link {
  margin-top: auto;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--azul-antartico);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.card__link::after {
  content: "→";
  transition: transform var(--transition);
}
.card:hover .card__link::after { transform: translateX(4px); }

/* ---------- Tablas ---------- */

.tabla {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.94rem;
}
.tabla th {
  background: var(--azul-antartico);
  color: var(--blanco);
  text-align: left;
  padding: 12px 14px;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}
.tabla td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--borde);
  vertical-align: top;
}
.tabla tr:nth-child(even) td { background: var(--hielo); }
.tabla tr.recomendado td { background: #E5F0EC; font-weight: 500; }
.tabla tr.recomendado td:first-child::before {
  content: "★ ";
  color: #2A9D8F;
}

/* ---------- Gamas (etiquetas) ---------- */

.gama {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 56px 0 24px;
  flex-wrap: wrap;
}
.gama__tag {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.gama__tag--media     { background: var(--hielo); color: var(--azul-antartico); }
.gama__tag--media-alta { background: #FEF1DC; color: #B87A2B; }
.gama__tag--alta       { background: #FBE0E0; color: #A02838; }
.gama__rango {
  color: var(--gris-suave);
  font-size: 0.95rem;
  font-weight: 500;
}

/* ---------- Fichas de producto ---------- */

.productos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 22px;
}
.producto {
  position: relative;
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: 6px;
  padding: 0;
  display: flex;
  flex-direction: column;
  transition: all var(--transition);
}
.producto:hover {
  border-color: var(--azul-antartico);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -16px rgba(14,31,63,0.18);
}
.producto--recomendado {
  border-color: #2A9D8F;
  border-width: 2px;
  box-shadow: 0 0 0 4px rgba(42,157,143,0.06);
}
.producto__badge {
  position: absolute;
  top: 14px;
  right: 14px;
  background: #2A9D8F;
  color: var(--blanco);
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.producto__head {
  background: var(--hielo);
  padding: 32px 24px 24px;
  text-align: center;
  border-bottom: 1px solid var(--borde);
  border-radius: 6px 6px 0 0;
  min-height: 130px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.producto__icon {
  font-family: var(--sans);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: var(--azul-antartico);
  text-align: center;
  line-height: 1.3;
}
.producto__icon small {
  display: block;
  font-weight: 500;
  color: var(--gris-suave);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  margin-top: 6px;
}
.producto__capacity {
  display: inline-block;
  background: var(--azul-antartico);
  color: var(--blanco);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  margin-top: 8px;
  letter-spacing: 0.04em;
}
.producto__body {
  padding: 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.producto__brand {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gris-suave);
  font-weight: 600;
  margin: 0 0 4px;
}
.producto__name {
  font-size: 1.05rem;
  color: var(--azul-antartico);
  margin: 0 0 14px;
  font-weight: 600;
  line-height: 1.3;
}
.producto__specs {
  list-style: none;
  padding: 0;
  margin: 0 0 14px;
  font-size: 0.88rem;
  border-top: 1px solid var(--borde);
}
.producto__specs li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 0;
  border-bottom: 1px dashed var(--borde);
}
.producto__specs span:first-child { color: var(--gris-suave); }
.producto__specs span:last-child { color: var(--azul-antartico); font-weight: 500; text-align: right; }

.producto__notas {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
  font-size: 0.88rem;
}
.producto__notas li {
  padding: 4px 0 4px 22px;
  position: relative;
  line-height: 1.5;
}
.producto__notas li::before {
  position: absolute;
  left: 0;
  top: 4px;
  font-weight: 700;
}
.producto__notas .ok::before    { content: "✓"; color: #2A9D8F; }
.producto__notas .ko::before    { content: "✗"; color: #C2434F; }

.producto__price {
  margin-top: auto;
  border-top: 1px solid var(--borde);
  padding-top: 14px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
}
.producto__price strong {
  color: var(--azul-antartico);
  font-size: 1.15rem;
  font-weight: 700;
}
.producto__price span {
  color: var(--gris-suave);
  font-size: 0.82rem;
}

/* ---------- Paleta de colores (manual) ---------- */

.paleta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
}
.swatch {
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--borde);
  background: var(--blanco);
}
.swatch__color {
  height: 130px;
  display: flex;
  align-items: flex-end;
  padding: 14px;
  color: var(--blanco);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.swatch__meta { padding: 14px; font-size: 0.85rem; }
.swatch__meta strong { color: var(--azul-antartico); display: block; margin-bottom: 2px; }

/* ---------- Logos display ---------- */

.logo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.logo-tile {
  border: 1px solid var(--borde);
  border-radius: 6px;
  padding: 32px 20px 20px;
  text-align: center;
  background: var(--blanco);
}
.logo-tile--dark { background: var(--azul-antartico); }
.logo-tile--gris { background: #6B7785; }
.logo-tile--negro { background: var(--negro); }
.logo-tile img { margin: 0 auto 16px; height: 110px; width: auto; }
.logo-tile__caption {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gris-suave);
  border-top: 1px solid var(--borde);
  padding-top: 12px;
}
.logo-tile--dark .logo-tile__caption,
.logo-tile--gris .logo-tile__caption,
.logo-tile--negro .logo-tile__caption {
  color: var(--azul-claro);
  border-top-color: rgba(255,255,255,0.18);
}

/* ---------- Tipografía display ---------- */

.tipo-demo {
  border: 1px solid var(--borde);
  padding: 40px 32px;
  border-radius: 6px;
  background: var(--blanco);
}
.tipo-demo__sample {
  font-family: var(--serif);
  font-style: italic;
  font-size: 4rem;
  color: var(--azul-antartico);
  margin: 0 0 8px;
  line-height: 1;
}
.tipo-demo__name { font-weight: 600; color: var(--azul-antartico); }
.tipo-demo__meta { color: var(--gris-suave); font-size: 0.9rem; }

/* ---------- Quote / lema ---------- */

.lema {
  text-align: center;
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--azul-antartico);
  max-width: 760px;
  margin: 0 auto;
  line-height: 1.4;
}
.lema::before, .lema::after { content: "«» "; opacity: 0; }

/* ---------- Sección "La Base" ---------- */

.base-hero {
  position: relative;
  min-height: clamp(420px, 60vh, 640px);
  display: flex;
  align-items: flex-end;
  background-size: cover;
  background-position: center;
  color: var(--blanco);
  overflow: hidden;
}
.base-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(14,31,63,0.30) 0%,
    rgba(14,31,63,0.10) 40%,
    rgba(14,31,63,0.85) 100%
  );
}
.base-hero__inner {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: 64px 0 56px;
}
.base-hero h2 {
  color: var(--blanco);
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  margin: 12px 0 14px;
  text-shadow: 0 2px 18px rgba(0,0,0,0.4);
}
.base-hero .eyebrow { color: var(--azul-claro); }
.base-hero p {
  max-width: 640px;
  color: var(--hielo);
  text-shadow: 0 1px 6px rgba(0,0,0,0.3);
}

.base-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0;
  background: var(--azul-antartico);
  color: var(--hielo);
  border-radius: 0;
}
.base-info__item {
  padding: 28px 28px;
  border-right: 1px solid rgba(138,160,189,0.18);
  border-bottom: 1px solid rgba(138,160,189,0.18);
}
.base-info__item:last-child { border-right: 0; }
.base-info__label {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--azul-claro);
  margin: 0 0 6px;
  font-weight: 600;
}
.base-info__value {
  color: var(--blanco);
  font-size: 1.05rem;
  font-weight: 500;
  margin: 0;
  line-height: 1.4;
}

/* ---------- Galería de Decepción ---------- */

.galeria {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: 180px;
  gap: 12px;
  margin-top: 40px;
}

.galeria__item {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  background: var(--azul-antartico);
}

.galeria__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.galeria__item:hover img { transform: scale(1.04); }

.galeria__item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(14,31,63,0.78) 100%);
  pointer-events: none;
}

.galeria__caption {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 14px;
  z-index: 1;
  color: var(--blanco);
  font-size: 0.85rem;
  letter-spacing: 0.01em;
  line-height: 1.4;
  text-shadow: 0 1px 6px rgba(0,0,0,0.35);
}

.galeria__caption strong {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--azul-claro);
  font-weight: 600;
  margin-bottom: 2px;
}

/* Layout: 4 imágenes con jerarquía */
.galeria__item--big   { grid-column: span 7; grid-row: span 2; }
.galeria__item--med-1 { grid-column: span 5; grid-row: span 1; }
.galeria__item--med-2 { grid-column: span 5; grid-row: span 1; }
.galeria__item--wide  { grid-column: span 12; grid-row: span 1; }

@media (max-width: 860px) {
  .galeria { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 200px; }
  .galeria__item--big,
  .galeria__item--med-1,
  .galeria__item--med-2,
  .galeria__item--wide { grid-column: span 2; grid-row: span 1; }
  .galeria__item--big { grid-row: span 2; }
}

/* ---------- Footer ---------- */

.footer {
  background: var(--azul-antartico);
  color: var(--azul-claro);
  padding: 60px 0 36px;
  text-align: center;
}
.footer__logo { width: 80px; margin: 0 auto 24px; opacity: 0.85; }
.footer__title {
  color: var(--blanco);
  font-weight: 600;
  margin: 0 0 6px;
  font-size: 1rem;
  letter-spacing: 0.04em;
}
.footer__lema {
  font-family: var(--serif);
  font-style: italic;
  color: var(--azul-claro);
  font-size: 1rem;
  margin: 0 0 28px;
}
.footer__small {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(232,238,245,0.5);
  margin: 0;
}

/* ---------- Utilidades ---------- */

.center { text-align: center; }
.muted { color: var(--gris-suave); }
.mt-0 { margin-top: 0; }
.mt-2 { margin-top: 1rem; }
.mt-4 { margin-top: 2rem; }
.mb-0 { margin-bottom: 0; }
.divider {
  width: 60px;
  height: 2px;
  background: var(--azul-antartico);
  border: 0;
  margin: 24px auto;
}
.section--dark .divider { background: var(--azul-claro); }

/* Reveal-on-scroll (simple) */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

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