/* ==========================================================================
   Quantuk Perú — layout.css
   Containers, header (topbar + red navbar), mobile drawer and footer.
   These blocks are identical across all four pages.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Containers and section rhythm
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-block: var(--section-y);
  position: relative;
}

.section--alt {
  background-color: var(--bg-alt);
}

.section--dark {
  background-color: var(--bg-dark);
  color: var(--text-on-dark);
}

.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--white);
}

.section--tight {
  padding-block: clamp(2.5rem, 1.5rem + 4vw, 4.5rem);
}

/* Section heading group */
.section-head {
  max-width: 62ch;
  margin-bottom: clamp(2rem, 1.2rem + 3vw, 3.5rem);
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

.section-head--center p {
  margin-inline: auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand-red);
  margin-bottom: var(--space-sm);
}

/* Short red rule that precedes the eyebrow text */
.eyebrow::before {
  content: "";
  width: 28px;
  height: 3px;
  background-color: var(--brand-red);
  border-radius: var(--radius-pill);
}

.eyebrow--center::before {
  display: none;
}

.section--dark .eyebrow {
  color: var(--brand-red);
}

.section-head p {
  margin-top: var(--space-sm);
  color: var(--text-muted);
}

.section--dark .section-head p {
  color: var(--text-on-dark);
}

/* --------------------------------------------------------------------------
   1b. Swiss grid — 12 columns
   Content sections compose on this grid instead of stacking cards.
   Column spans collapse to full width below 900px.
   -------------------------------------------------------------------------- */
.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(1.25rem, 2.5vw, 2.5rem);
}

.grid--tight {
  gap: clamp(1rem, 1.5vw, 1.5rem);
}

/* grid-column-end y NO el atajo grid-column.
   `grid-column: span 6` coloca el span en la posición de INICIO. Al
   combinarse con .start-7, que fija ese inicio en 7, el fin queda en auto
   y el bloque colapsa a una sola columna: el texto se estrangula y cada
   palabra cae en su propia línea. Separando inicio y fin nunca compiten. */
.col-2 { grid-column-end: span 2; }
.col-3 { grid-column-end: span 3; }
.col-4 { grid-column-end: span 4; }
.col-5 { grid-column-end: span 5; }
.col-6 { grid-column-end: span 6; }
.col-7 { grid-column-end: span 7; }
.col-8 { grid-column-end: span 8; }
.col-9 { grid-column-end: span 9; }
.col-10 { grid-column-end: span 10; }
.col-12 { grid-column-end: span 12; }

/* Asymmetric offsets — the Swiss move that keeps blocks off dead centre.
   Escala completa a propósito: una clase start-N sin definir no falla de
   forma visible, simplemente deja el bloque pegado al margen y el diseño
   se ve corrido sin que nada avise. */
.start-2 { grid-column-start: 2; }
.start-3 { grid-column-start: 3; }
.start-4 { grid-column-start: 4; }
.start-5 { grid-column-start: 5; }
.start-6 { grid-column-start: 6; }
.start-7 { grid-column-start: 7; }
.start-8 { grid-column-start: 8; }
.start-9 { grid-column-start: 9; }
.start-10 { grid-column-start: 10; }

.self-center { align-self: center; }
.self-end { align-self: end; }

@media (max-width: 1024px) {
  .col-2, .col-3, .col-4 { grid-column-end: span 6; }
  .col-5, .col-6, .col-7, .col-8, .col-9, .col-10 { grid-column-end: span 12; }
  /* Un solo selector, así ninguna clase start-N nueva se queda fuera */
  [class*="start-"] { grid-column-start: auto; }
}

@media (max-width: 700px) {
  [class*="col-"] { grid-column-end: span 12; }
}

/* --------------------------------------------------------------------------
   2. Scroll progress bar
   -------------------------------------------------------------------------- */
.scroll-progress {
  position: fixed;
  inset: 0 auto auto 0;
  width: 100%;
  height: 3px;
  z-index: calc(var(--z-header) + 1);
  transform: scaleX(0);
  transform-origin: 0 50%;
  background-color: var(--brand-red);
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   3. Site header
   Absolute over the hero so the photo shows through, exactly like the brief.
   Turns into a compact fixed bar once the user scrolls past the hero top.
   -------------------------------------------------------------------------- */
.site-header {
  position: absolute;
  inset: 0 0 auto 0;
  z-index: var(--z-header);
}

.site-header::after {
  /* Backdrop that only appears in the stuck state */
  content: "";
  position: absolute;
  inset: 0;
  background-color: var(--ink-900);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-base) var(--ease-out);
}

/* --- Topbar (black strip: logo + contact details) --- */
.topbar {
  position: relative;
  z-index: var(--z-raised);
  background-color: var(--ink-900);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: padding var(--dur-base) var(--ease-out);
}

/* Logo y datos de contacto se centran como un solo grupo, con holgura a
   ambos lados, tal como en la referencia — no separados a los extremos. */
.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1.5rem, 6vw, 5.5rem);
  min-height: var(--topbar-h);
  padding-block: var(--space-xs);
}

.brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.brand img {
  width: auto;
  height: clamp(38px, 3.2vw, 52px);
  transition: height var(--dur-base) var(--ease-out);
}

.topbar__contacts {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 3vw, 3rem);
}

.topbar__contact {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.topbar__icon {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: var(--brand-red);
  color: var(--white);
  transition: transform var(--dur-base) var(--ease-out);
}

.topbar__icon svg {
  width: 19px;
  height: 19px;
}

.topbar__contact:hover .topbar__icon {
  transform: translateY(-2px) scale(1.05);
}

.topbar__meta {
  display: flex;
  flex-direction: column;
  line-height: 1.35;
}

.topbar__label {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--white);
}

.topbar__value {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.68);
  transition: color var(--dur-fast) var(--ease-out);
}

a.topbar__value:hover {
  color: var(--brand-red);
}

/* --- Red navigation bar --- */
.navbar-wrap {
  position: relative;
  z-index: var(--z-base);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  min-height: var(--navbar-h);
  padding-inline: clamp(1rem, 2.5vw, 2rem);
  background-color: var(--brand-red);
  border-radius: var(--radius-xs);
  box-shadow: var(--shadow-md);
  transition: border-radius var(--dur-base) var(--ease-out),
    background-color var(--dur-base) var(--ease-out);
}

.navbar__menu {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 2.25rem);
}

.navbar__link {
  position: relative;
  display: inline-block;
  padding-block: var(--space-xs);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--white);
  white-space: nowrap;
  transition: opacity var(--dur-fast) var(--ease-out);
}

/* Underline grows from the centre on hover and stays put on the active page */
.navbar__link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 0;
  height: 2px;
  background-color: var(--white);
  border-radius: var(--radius-pill);
  transform: translateX(-50%);
  transition: width var(--dur-base) var(--ease-out);
}

.navbar__link:hover::after,
.navbar__link:focus-visible::after {
  width: 100%;
}

.navbar__link[aria-current="page"] {
  opacity: 1;
}

.navbar__link[aria-current="page"]::after {
  width: 100%;
}

.navbar__link--external {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.navbar__link--external svg {
  width: 13px;
  height: 13px;
  opacity: 0.75;
}

.navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex-shrink: 0;
}

/* --- Stuck state --- */
.site-header.is-stuck {
  position: fixed;
  animation: header-drop var(--dur-slow) var(--ease-out) both;
}

.site-header.is-stuck::after {
  opacity: 1;
}

.site-header.is-stuck .topbar {
  border-bottom-color: transparent;
}

.site-header.is-stuck .topbar__inner {
  min-height: 0;
  padding-block: 0;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height var(--dur-base) var(--ease-out),
    opacity var(--dur-fast) var(--ease-out), padding var(--dur-base) var(--ease-out);
}

.site-header.is-stuck .navbar {
  border-radius: 0;
  box-shadow: 0 10px 30px rgba(14, 14, 16, 0.28);
}

/* Compact brand shown only while stuck, so the logo never disappears */
.navbar__brand {
  display: none;
  align-items: center;
  margin-right: var(--space-md);
}

.navbar__brand img {
  height: 34px;
  width: auto;
}

.site-header.is-stuck .navbar__brand {
  display: inline-flex;
}

@keyframes header-drop {
  from {
    transform: translateY(-100%);
  }
  to {
    transform: translateY(0);
  }
}

/* --------------------------------------------------------------------------
   4. Mobile drawer
   -------------------------------------------------------------------------- */
.nav-toggle {
  display: none;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  color: var(--white);
  background-color: rgba(255, 255, 255, 0.12);
}

/* position:relative es obligatorio acá: las dos barras son pseudo-elementos
   absolutos y sin esto se anclan al .site-header, que sí está posicionado,
   y el icono aparece descolocado fuera del botón. */
.nav-toggle__bars {
  position: relative;
}

.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  display: block;
  width: 22px;
  height: 2px;
  background-color: currentColor;
  border-radius: var(--radius-pill);
  transition: transform var(--dur-base) var(--ease-out),
    opacity var(--dur-fast) var(--ease-out);
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
}

.nav-toggle__bars::before {
  transform: translateY(-7px);
}

.nav-toggle__bars::after {
  transform: translateY(7px);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars {
  background-color: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before {
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after {
  transform: rotate(-45deg);
}

.drawer-scrim {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-drawer) - 1);
  background-color: rgba(14, 14, 16, 0.55);
  backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-base) var(--ease-out),
    visibility var(--dur-base) var(--ease-out);
}

.drawer-scrim.is-open {
  opacity: 1;
  visibility: visible;
}

.drawer {
  position: fixed;
  inset: 0 0 0 auto;
  z-index: var(--z-drawer);
  width: min(340px, 88vw);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  padding: var(--space-lg) var(--space-md) var(--space-2xl);
  background-color: var(--ink-900);
  color: var(--white);
  transform: translateX(100%);
  visibility: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  transition: transform var(--dur-slow) var(--ease-out),
    visibility var(--dur-slow) var(--ease-out);
}

.drawer.is-open {
  transform: translateX(0);
  visibility: visible;
}

.drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.drawer__head img {
  height: 40px;
  width: auto;
}

.drawer__close {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  color: var(--white);
  background-color: rgba(255, 255, 255, 0.1);
  transition: background-color var(--dur-fast) var(--ease-out);
}

.drawer__close:hover {
  background-color: var(--brand-red);
}

.drawer__close svg {
  width: 20px;
  height: 20px;
}

.drawer__menu {
  display: flex;
  flex-direction: column;
}

.drawer__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  min-height: 54px;
  padding-inline: var(--space-2xs);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: color var(--dur-fast) var(--ease-out),
    padding-left var(--dur-fast) var(--ease-out);
}

.drawer__link:hover,
.drawer__link[aria-current="page"] {
  color: var(--brand-red);
  padding-left: var(--space-sm);
}

.drawer__link svg {
  width: 15px;
  height: 15px;
  opacity: 0.6;
}

.drawer__contacts {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: auto;
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
}

.drawer__contacts a {
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
  min-height: 44px;
}

.drawer__contacts svg {
  width: 16px;
  height: 16px;
  color: var(--brand-red);
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   5. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--ink-900);
  color: rgba(255, 255, 255, 0.66);
  padding-top: clamp(3rem, 2rem + 4vw, 5rem);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: clamp(2rem, 4vw, 4rem);
  padding-bottom: var(--space-2xl);
}

.site-footer__brand img {
  height: 56px;
  width: auto;
  margin-bottom: var(--space-md);
}

.site-footer__brand p {
  font-size: var(--text-sm);
  max-width: 34ch;
}

.footer-title {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--white);
  margin-bottom: var(--space-md);
  position: relative;
  padding-bottom: var(--space-2xs);
}

.footer-title::after {
  content: "";
  position: absolute;
  inset: auto auto 0 0;
  width: 26px;
  height: 2px;
  background-color: var(--brand-red);
  border-radius: var(--radius-pill);
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  font-size: var(--text-sm);
}

.footer-list a {
  display: inline-block;
  padding-block: 4px;
  transition: color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.footer-list a:hover {
  color: var(--brand-red);
  transform: translateX(4px);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  font-size: var(--text-sm);
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
}

.footer-contact svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--brand-red);
}

.footer-social {
  display: flex;
  gap: var(--space-2xs);
  margin-top: var(--space-md);
}

.footer-social a {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--white);
  transition: background-color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.footer-social a:hover {
  background-color: var(--brand-red);
  transform: translateY(-3px);
}

.footer-social svg {
  width: 19px;
  height: 19px;
}

.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  flex-wrap: wrap;
  padding-block: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: var(--text-sm);
}

/* :not() excluye al botón del Libro de Reclamaciones en lugar de competir
   con él por especificidad. Esta regla es (0,2,1) y .footer-lr:hover (0,2,0),
   así que ganaba y pintaba el texto de rojo sobre el fondo rojo del botón:
   las letras desaparecían. */
.site-footer__bottom a:not(.footer-lr):hover {
  color: var(--brand-red);
}

.site-footer__legal {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* El Libro de Reclamaciones tiene que ser visible y fácil de encontrar:
   el Art. 3.5 del D.S. 011-2011-PCM lo exige. Por eso lleva marco propio
   en vez de ser un enlace más del pie. */
.footer-lr {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  min-height: 40px;
  padding: 0 var(--space-sm);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: background-color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out);
}

.footer-lr:hover {
  color: var(--white);
  background-color: var(--brand-red);
  border-color: var(--brand-red);
}

.footer-lr svg {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   6. Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1100px) {
  .topbar__contacts {
    gap: var(--space-md);
  }

  /* Se cae "Ubicación", el único bloque que no es accionable.
     Teléfono y correo se mantienen completos: ocultar sus etiquetas
     dejaría el icono sin el enlace, que vive dentro del texto. */
  .topbar__contact:nth-child(2) {
    display: none;
  }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    row-gap: var(--space-xl);
  }
}

@media (max-width: 900px) {
  /* La topbar desaparece y su alto pasa a cero: todos los calc() del hero
     que dependen de --topbar-h se reajustan solos, sin duplicar reglas. */
  :root {
    --topbar-h: 0px;
  }

  .topbar {
    display: none;
  }

  .navbar__menu,
  .navbar__actions .btn {
    display: none;
  }

  .nav-toggle {
    display: grid;
  }

  /* A ancho completo en móvil: la barra roja deja de flotar */
  .navbar-wrap {
    padding-inline: 0;
  }

  .navbar {
    justify-content: space-between;
    border-radius: 0;
  }

  /* El logo queda solo en la barra roja, que ya trae el botón del menú */
  .navbar__brand {
    display: inline-flex;
  }
}

@media (max-width: 640px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
  }

  .site-footer__bottom {
    justify-content: center;
    text-align: center;
  }
}