/* ==========================================================
   SECCIONES — una por bloque de la página, en orden de aparición
   ========================================================== */

/* ---------- Cabecera ---------- */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.header.is-scrolled {
  background: rgba(244, 246, 251, 0.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 var(--color-mist);
}
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font: 800 1.5rem/1 var(--font-display);
  letter-spacing: -0.03em;
  color: var(--color-ink);
  text-decoration: none;
}
.brand__logo { height: 36px; width: auto; border-radius: 6px; }

.nav { display: flex; align-items: center; gap: var(--space-3); }
.nav__list { display: flex; gap: var(--space-3); }
.nav__link {
  position: relative;
  padding: 0.4rem 0;
  font-weight: 500;
  color: var(--color-ink);
  text-decoration: none;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease);
}
.nav__link:hover::after, .nav__link.is-active::after { transform: scaleX(1); }

.nav-toggle { display: none; }

@media (max-width: 900px) {
  .nav-toggle {
    display: grid;
    place-items: center;
    width: 2.75rem; height: 2.75rem;
    border: 0; border-radius: 50%;
    background: var(--color-white);
    color: var(--color-ink);
    cursor: pointer;
    box-shadow: var(--shadow-soft);
  }
  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-3) var(--gutter) var(--space-4);
    background: var(--color-paper);
    box-shadow: 0 24px 40px -24px rgba(15, 27, 61, 0.4);
    transform: translateY(-120%);
    visibility: hidden;
    transition: transform 0.3s var(--ease), visibility 0.3s;
  }
  .nav.is-open { transform: none; visibility: visible; }
  .nav__list { flex-direction: column; gap: 0; }
  .nav__link { display: block; padding: 0.9rem 0; font-size: var(--fs-500); border-bottom: 1px solid var(--color-mist); }
  .nav__link::after { display: none; }
  .nav .btn { justify-content: center; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding-block: calc(var(--header-h) + var(--space-5)) var(--space-6);
  overflow: hidden;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-5);
  align-items: center;
}
.hero h1 { max-width: 14ch; }
.hero__lead { font-size: var(--fs-500); color: var(--color-ink-soft); }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-3); }

.hero__visual { position: relative; padding: 2.5rem; }
.hero__image {
  aspect-ratio: 4 / 5;
  border-radius: 200px 200px var(--radius-l) var(--radius-l);
  box-shadow: var(--shadow-soft);
}
/* Órbita: el elemento distintivo de la página (un qubit en movimiento) */
.orbit {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  color: var(--color-primary);
  overflow: visible;
}
.orbit__path { fill: none; stroke: currentColor; stroke-width: 1.5; opacity: 0.45; }
.orbit__dot { fill: var(--color-signal); }

.facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-5);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-mist);
}
.facts dt { font: 700 var(--fs-600)/1.1 var(--font-display); }
.facts dd { margin: 0.25rem 0 0; color: var(--color-ink-soft); font-size: var(--fs-300); }

@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__visual { max-width: 420px; margin-inline: auto; }
  .facts { grid-template-columns: 1fr; gap: var(--space-2); }
}

/* ---------- Nosotros ---------- */
.about__grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); align-items: start; }
.about__mission {
  padding: var(--space-4);
  border-radius: var(--radius-l);
  background: var(--color-ink);
  color: var(--color-on-dark);
}
.about__mission h3 { color: var(--color-white); }
.about__mission p { color: var(--color-on-dark-soft); margin-bottom: 0; }
@media (max-width: 900px) { .about__grid { grid-template-columns: 1fr; gap: var(--space-4); } }

/* ---------- Servicios (lista de filas) ---------- */
.services { background: var(--color-white); }
.service-list { border-top: 1px solid var(--color-mist); }
.service-row {
  display: grid;
  grid-template-columns: 200px 1fr auto;
  gap: var(--space-4);
  align-items: center;
  width: 100%;
  padding: var(--space-3) 0;
  border: 0;
  border-bottom: 1px solid var(--color-mist);
  background: none;
  color: inherit;
  font: inherit;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
  transition: padding 0.25s var(--ease), background 0.25s var(--ease);
}
.service-row:hover { background: var(--color-paper); padding-inline: var(--space-2); }
.service-row__media { aspect-ratio: 16 / 10; border-radius: var(--radius-s); }
.service-row h3 { margin-bottom: 0.4rem; font-size: var(--fs-600); }
.service-row p { margin: 0; color: var(--color-ink-soft); }
.service-row__go {
  display: grid;
  place-items: center;
  width: 3rem; height: 3rem;
  border-radius: 50%;
  background: var(--color-paper);
  color: var(--color-primary);
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}
.service-row:hover .service-row__go { background: var(--color-signal); color: var(--color-ink); }

@media (max-width: 700px) {
  .service-row { grid-template-columns: 110px 1fr; gap: var(--space-2); }
  .service-row__go { display: none; }
}

/* ---------- Herramientas de desarrollo ---------- */
.stack__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
.stack-card {
  overflow: hidden;
  border-radius: var(--radius-m);
  background: var(--color-white);
  border: 1px solid var(--color-mist);
}
.stack-card__media { aspect-ratio: 16 / 10; }
.stack-card__body { padding: var(--space-3); }
.stack-card h3 { font-size: var(--fs-500); margin-bottom: var(--space-2); }
@media (max-width: 900px) { .stack__grid { grid-template-columns: 1fr; } }

/* ---------- Servicios administrados (sección oscura) ---------- */
.managed { background: var(--color-ink); color: var(--color-on-dark); }
.managed h2, .managed h3 { color: var(--color-white); }
.managed .section-head p { color: var(--color-on-dark-soft); }
.platforms { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); margin-bottom: var(--space-5); }
.platform {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-l);
  background: rgba(255, 255, 255, 0.04);
}
.platform__media { aspect-ratio: 16 / 10; border-radius: var(--radius-m); }
.platform h3 { margin: 0; font-size: var(--fs-500); }
.platform__tag { margin: 0; color: var(--color-signal); font-weight: 600; }
.managed__copy { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
.managed__copy p { color: var(--color-on-dark-soft); }
.managed__copy h3 { font-size: var(--fs-600); }
@media (max-width: 900px) {
  .platforms, .managed__copy { grid-template-columns: 1fr; }
}

/* ---------- Por qué Qubit ---------- */
.why__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-3) var(--space-5); }
.why-item { display: grid; grid-template-columns: auto 1fr; gap: var(--space-2); }
.why-item__icon {
  display: grid;
  place-items: center;
  width: 3rem; height: 3rem;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
}
.why-item h3 { margin-bottom: 0.25rem; font-size: var(--fs-500); }
.why-item p { margin: 0; color: var(--color-ink-soft); }
@media (max-width: 700px) { .why__grid { grid-template-columns: 1fr; } }

/* ---------- Clientes ---------- */
.clients { background: var(--color-white); }
.clients__grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-2); }
.client { grid-column: span 2; margin: 0; }
.client__media { aspect-ratio: 4 / 3; border-radius: var(--radius-m); border: 1px solid var(--color-mist); }
.client figcaption { margin-top: 0.6rem; font-size: var(--fs-300); font-weight: 500; color: var(--color-ink-soft); }
@media (max-width: 800px) {
  .clients__grid { grid-template-columns: 1fr 1fr; }
  .client { grid-column: span 1; }
}
@media (max-width: 480px) {
  .clients__grid { grid-template-columns: 1fr; }
}

/* ---------- Banda de llamada a la acción ---------- */
.cta-band { padding-block: var(--space-5); background: var(--color-primary); color: var(--color-white); }
.cta-band__inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-3); }
.cta-band h2 { margin: 0; max-width: 24ch; font-size: var(--fs-700); color: var(--color-white); }

/* ---------- Contacto ---------- */
.contact__grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: var(--space-5); align-items: start; }
.contact-list { display: grid; gap: var(--space-3); margin-bottom: var(--space-4); }
.contact-list li { display: grid; grid-template-columns: auto 1fr; gap: var(--space-2); align-items: start; }
.contact-list .icon { width: 1.6rem; height: 1.6rem; margin-top: 0.15rem; color: var(--color-primary); }
.contact-list strong { display: block; font-family: var(--font-display); }
.contact-list a { color: var(--color-ink); }
.map {
  aspect-ratio: 16 / 10;
  border: 0;
  width: 100%;
  border-radius: var(--radius-m);
  background: var(--color-mist);
}
.form-frame {
  padding: var(--space-3);
  border-radius: var(--radius-l);
  background: var(--color-white);
  border: 1px solid var(--color-mist);
  box-shadow: var(--shadow-soft);
}
.form-frame iframe { display: block; width: 100%; height: 640px; border: 0; }
.form-frame__note { margin: var(--space-2) 0 0; font-size: var(--fs-300); color: var(--color-ink-soft); }
.contact__photos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
  margin-top: var(--space-5);
}
.contact__photo { aspect-ratio: 16 / 9; border-radius: var(--radius-m); }
.contact__photo:has(img[hidden]) { display: none; }
@media (max-width: 900px) {
  .contact__grid { grid-template-columns: 1fr; }
  .contact__photos { grid-template-columns: 1fr; }
}

/* ---------- Pie de página ---------- */
.footer { padding-block: var(--space-4); background: var(--color-ink); color: var(--color-on-dark-soft); }
.footer__inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-2); }
.footer .brand { color: var(--color-white); }
.footer a { color: var(--color-on-dark); }
.footer__nav { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.footer p { margin: 0; }

/* ---------- Aparición de la página (una sola secuencia en el hero) ---------- */
.hero [data-intro] { animation: intro 0.8s var(--ease) both; }
.hero [data-intro="2"] { animation-delay: 0.12s; }
.hero [data-intro="3"] { animation-delay: 0.24s; }
@keyframes intro {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}