/* =========================================================
   oXirium — Hoja de estilos principal
   Basada en "Maqueta Web oXirium - versión 1"
   ========================================================= */

:root {
  --fondo: #122b39;          /* azul petróleo general */
  --fondo-hero: #122d36;     /* hero de la home */
  --fondo-oscuro: #08131a;   /* botones oscuros y marca del pie */
  --naranja: #f37423;
  --naranja-hover: #ff8a3d;
  --blanco: #ffffff;
  --texto-suave: #d6e0e5;
  --tarjeta: #f0f0f0;
  --tarjeta-texto: #1d2a30;

  --fuente-texto: "Nunito Sans", "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
  --fuente-nav: "Raleway", "Segoe UI", system-ui, Arial, sans-serif;
  --fuente-tecnica: "Michroma", "Arial Black", "Segoe UI", sans-serif;

  --ancho-max: 1180px;
  --margen: clamp(20px, 5.5vw, 60px);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--fondo);
  color: var(--blanco);
  font-family: var(--fuente-texto);
  font-size: 1rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--naranja);
  outline-offset: 3px;
}

.contenedor {
  width: 100%;
  max-width: var(--ancho-max);
  margin: 0 auto;
  padding: 0 var(--margen);
}

/* Títulos con tipografía expandida (equivalente web de Lastica / Nunito Expanded) */
.titulo-expandido {
  font-family: var(--fuente-texto);
  font-stretch: 125%;
  font-weight: 400;
  letter-spacing: 0.01em;
  line-height: 1.3;
}

/* ---------- Encabezado ---------- */
.encabezado {
  position: absolute;
  inset: 0 0 auto 0;
  z-index: 10;
}

.encabezado__barra {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 20px;
}

.encabezado__logo { flex-shrink: 0; }
.encabezado__logo img { width: 200px; height: auto; }

.encabezado nav { flex: 1; }

.nav {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin: 0;
  padding: 0;
  list-style: none;
  transform: translateX(-62px); /* compensa el logo para centrar el menú */
}

.nav a {
  display: inline-block;
  padding: 6px 24px;
  border-radius: 999px;
  font-family: var(--fuente-nav);
  font-size: 0.95rem;
  text-decoration: none;
  color: var(--blanco);
  background: rgba(18, 43, 57, 0.55);
  transition: background-color 0.2s ease;
}

.nav a:hover { background: rgba(18, 43, 57, 0.95); }

.nav a[aria-current="page"] { background: var(--fondo); }

/* Variante del menú sobre fotografía (página Soluciones) */
.encabezado--foto .nav a {
  background: var(--fondo);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}
.encabezado--foto .nav a:hover { background: #1b3c4f; }

/* ---------- Botones ---------- */
.boton {
  display: inline-block;
  font-family: var(--fuente-texto);
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  border: 0;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.boton--naranja {
  padding: 8px 22px;
  border-radius: 999px;
  background: var(--naranja);
  color: var(--blanco);
  font-size: 0.95rem;
}
.boton--naranja:hover { background: var(--naranja-hover); }

.boton--oscuro {
  padding: 14px 46px;
  border-radius: 8px;
  background: var(--fondo-oscuro);
  color: var(--blanco);
  font-size: 1.1rem;
}
.boton--oscuro:hover { background: #000; }

/* =========================================================
   HOME
   ========================================================= */

.hero {
  background: var(--fondo-hero);
  min-height: 580px;
  display: flex;
  align-items: center;
  padding: 110px 0 80px;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 340px) 1fr;
  gap: 40px;
  align-items: center;
}

.hero__antetitulo {
  margin: 0;
  color: var(--naranja);
  font-size: 1.1rem;
  font-weight: 400;
}

.hero__titulo {
  margin: 0 0 6px;
  color: var(--naranja);
  font-stretch: 125%;
  font-weight: 700;
  font-size: clamp(2rem, 3.6vw, 2.3rem);
  line-height: 1.22;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero__texto {
  margin: 0 0 14px;
  font-size: 0.9rem;
  line-height: 1.45;
}

.hero__emblema {
  justify-self: center;
  width: 120px;
  transform: translateX(-60px);
  animation: girar 40s linear infinite;
}

@keyframes girar { to { rotate: 360deg; } }

/* Conoce oXia */
.oxia {
  position: relative;
  min-height: 370px;
  display: flex;
  align-items: flex-end;
  padding: 120px 0 40px;
  background: #1b1715 url("../img/oxia-habla-con-tu-logistica.jpg") center 42% / cover no-repeat;
  overflow: hidden;
}

.oxia::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(8, 10, 14, 0.55) 0%, rgba(8, 10, 14, 0.15) 45%, transparent 70%);
}

.oxia__contenido { position: relative; }

.etiqueta {
  display: inline-block;
  margin-bottom: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(10, 18, 24, 0.85);
  font-size: 0.85rem;
}

.oxia__titulo {
  margin: 0 0 16px;
  font-weight: 300;
  font-size: clamp(2.6rem, 6vw, 3.6rem);
  line-height: 1;
}

.oxia__texto {
  margin: 0;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  font-weight: 300;
  line-height: 1.3;
}

.oxia__texto span { color: var(--naranja); }

/* Módulos WMS / TMS / YMS */
.modulos {
  padding-top: 120px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.8);
}

.modulos img {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 5%, #000 95%, transparent 100%);
          mask-image: linear-gradient(90deg, transparent 0, #000 5%, #000 95%, transparent 100%);
}

/* Bloques de texto + imagen */
.bloque { padding: 60px 0; }
.bloque:first-of-type { padding-top: 60px; }

.bloque__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 8vw, 110px);
  align-items: center;
}

.bloque__titulo {
  margin: 0 0 16px;
  font-size: clamp(1.6rem, 3vw, 2.15rem);
}

.bloque__texto {
  margin: 0;
  font-size: 1.05rem;
  color: var(--blanco);
  max-width: 44ch;
}

.bloque__imagen {
  width: 100%;
  height: auto;
  aspect-ratio: 340 / 247;
  object-fit: cover;
  border-radius: 6px;
}

.bloque__imagen--innovacion { object-position: center 62%; }
.bloque__imagen--procesos { object-position: center 55%; }

/* Franja aérea */
.franja-aerea {
  position: relative;
  min-height: 268px;
  margin-top: 50px;
  display: grid;
  place-items: center;
  padding: 40px var(--margen);
  text-align: center;
  background: url("../img/vista-aerea-logistica.jpg") center / cover no-repeat;
  overflow: hidden;
}

.franja-aerea__emblema {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 170px;
  transform: translate(-50%, -50%);
  opacity: 0.85;
}

.franja-aerea p {
  position: relative;
  margin: 0;
  max-width: 62ch;
  font-size: 1.05rem;
  line-height: 1.55;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.85), 0 0 14px rgba(0, 0, 0, 0.5);
}

/* Llamada a la acción */
.cta {
  padding: 34px 0 20px;
  text-align: center;
}

.cta__titulo {
  margin: 0 0 14px;
  font-size: clamp(1.3rem, 2.6vw, 1.6rem);
}

/* =========================================================
   SOLUCIONES
   ========================================================= */

.sol-hero {
  position: relative;
  min-height: 476px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 110px var(--margen) 80px;
  text-align: center;
  background: #6b4e3b url("../img/soluciones-hero.jpg") center 44% / cover no-repeat;
}

.sol-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 35%, rgba(0, 0, 0, 0.3) 100%);
}

.sol-hero__contenido { position: relative; max-width: 640px; }

.sol-hero__titulo {
  margin: 0 0 30px;
  color: #13212a;
  font-size: clamp(1.4rem, 3vw, 1.75rem);
  line-height: 1.45;
}

.sol-hero__titulo strong {
  display: block;
  font-weight: 700;
  font-size: 1.2em;
}

.sol-hero__texto {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.5;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.55);
}

.intro-productos {
  margin: 0 auto;
  padding: 18px var(--margen) 0;
  max-width: 640px;
  text-align: center;
  font-size: 0.95rem;
}

.tarjetas {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  max-width: 900px;
  margin: 32px auto 0;
  padding: 0 var(--margen);
  list-style: none;
}

.tarjeta {
  padding: 32px 30px 40px;
  border-radius: 10px;
  background: var(--tarjeta);
  color: var(--tarjeta-texto);
  box-shadow: 6px 8px 14px rgba(0, 0, 0, 0.35);
}

.tarjeta h2 {
  margin: 0 0 32px;
  font-family: var(--fuente-nav);
  font-weight: 500;
  font-size: 1.4rem;
  line-height: 1.4;
  color: #10171b;
}

.tarjeta p {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.55;
}

/* Almacenes inteligentes */
.almacenes {
  display: grid;
  grid-template-columns: minmax(0, 460px) 1fr;
  gap: 44px;
  align-items: stretch;
  margin-top: 160px;
  padding-left: var(--margen);
}

.almacenes__texto {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 40px;
}

.titulo-tecnico {
  margin: 0;
  font-family: var(--fuente-tecnica);
  font-weight: 400;
  font-size: clamp(1rem, 1.9vw, 1.2rem);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.almacenes__texto p {
  margin: 0;
  padding-left: 26px;
  font-size: 1.2rem;
  line-height: 1.5;
}

.almacenes__imagen {
  width: 100%;
  height: auto !important;
  aspect-ratio: 520 / 352;
  object-fit: cover;
  object-position: center 40%;
  align-self: center;
}

/* Franjas con fotografía */
.franjas { margin-top: 90px; }

.franja {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  min-height: 240px;
  padding: 30px var(--margen);
  background-size: cover;
  background-position: center;
}

.franja::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(5, 12, 18, 0.18);
}

.franja > * {
  position: relative;
  margin: 0;
  text-align: center;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.85), 0 0 18px rgba(0, 0, 0, 0.45);
}

.franja h2 {
  font-size: clamp(1.4rem, 2.6vw, 1.75rem);
  font-weight: 700;
}

.franja p {
  max-width: 42ch;
  justify-self: center;
  font-size: 1.05rem;
  line-height: 1.55;
}

/* El título queda a la derecha en la franja central */
.franja--invertida h2 { order: 2; }
.franja--invertida p { order: 1; }

.franja--ingenieria { background-image: url("../img/ingenieria-clase-mundial.jpg"); }
.franja--holistico  { background-image: url("../img/enfoque-holistico.jpg"); }
.franja--independencia { background-image: url("../img/independencia-personalizacion.jpg"); }

/* Servicios */
.servicios { padding: 70px 0 40px; }

.servicios__grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 40px;
  align-items: center;
}

.servicios__engranaje {
  width: 100%;
  max-width: 300px;
  justify-self: center;
}

.servicios__lista {
  margin: 0;
  padding: 0;
  list-style: none;
}

.servicios__lista li {
  max-width: 50ch;
  margin-bottom: 18px;
  font-size: 0.95rem;
  line-height: 1.5;
}

/* =========================================================
   PIE
   ========================================================= */

.pie {
  position: relative;
  height: 240px;
  overflow: hidden;
  display: flex;
  justify-content: center;
}

.pie__marca {
  position: absolute;
  bottom: -0.26em;
  left: 50%;
  transform: translateX(-50%);
  margin: 0;
  font-weight: 300;
  font-size: clamp(120px, 26vw, 270px);
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--fondo-oscuro);
  white-space: nowrap;
  user-select: none;
}

.pie__marca img {
  display: inline-block;
  vertical-align: baseline;
  width: 0.57em;
  height: auto;
  margin: 0 -0.01em;
}

.pie__legal {
  position: absolute;
  bottom: 30px;
  left: 0;
  right: 0;
  margin: 0;
  padding: 0 var(--margen);
  text-align: center;
  font-size: 0.82rem;
}

.pie__legal a { text-decoration: none; }
.pie__legal a:hover { color: var(--naranja); }

/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (max-width: 860px) {
  .tarjetas { grid-template-columns: 1fr; max-width: 460px; }
  .tarjeta h2 { margin-bottom: 18px; }

  .almacenes {
    grid-template-columns: 1fr;
    margin-top: 90px;
    padding-right: var(--margen);
  }
  .almacenes__texto p { padding-left: 0; }
  .almacenes__imagen { aspect-ratio: 4 / 3; }

  .franja {
    grid-template-columns: 1fr;
    gap: 16px;
    padding-top: 50px;
    padding-bottom: 50px;
  }
  .franja--invertida h2 { order: 0; }
  .franja--invertida p { order: 0; }
}

@media (max-width: 760px) {
  .hero { padding-top: 120px; min-height: 0; }
  .hero__grid { grid-template-columns: 1fr; gap: 32px; }
  .hero__emblema { order: -1; justify-self: start; transform: none; width: 90px; }

  .bloque__grid { grid-template-columns: 1fr; gap: 28px; }
  .bloque--imagen-izq .bloque__imagen { order: 2; }

  .modulos { padding-top: 60px; }

  .servicios__grid { grid-template-columns: 1fr; }
  .servicios__engranaje { max-width: 200px; }
}

@media (max-width: 560px) {
  .encabezado__barra {
    flex-direction: column;
    gap: 12px;
    padding: 12px;
  }
  .nav { transform: none; gap: 6px; }
  .nav a { padding: 6px 16px; font-size: 0.9rem; }

  .hero { padding-top: 140px; }
  .oxia { min-height: 420px; background-position: 30% center; }
  .sol-hero { padding-top: 140px; }

  .franja-aerea__emblema { width: 130px; }

  .pie { height: 210px; }
  .pie__marca { font-size: 30vw; }
  .sol-hero__titulo { color: var(--blanco); text-shadow: 0 1px 6px rgba(0, 0, 0, 0.6); }
  .pie__legal { top: 24px; bottom: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero__emblema { animation: none; }
  * { transition: none !important; }
}