/* ==========================================================================
   layout.css — contenedor, nav, overlay de menú, footer, breakpoints
   Dos cortes y sólo dos: 860px y 680px. El menú de flujo de los casos tiene
   el suyo propio en 1100px (ver components.css).
   ========================================================================== */

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  position: relative;
}

/* Contenedores: la banda ocupa el ancho, el inner se centra y limita. */
.band {
  display: flex;
  justify-content: center;
  padding-left: var(--pad-x);
  padding-right: var(--pad-x);
}
.band__inner {
  width: 100%;
  max-width: var(--container);
}
.band__inner--text { max-width: var(--container-text); }

/* Todo lo que debe quedar por encima del cushion. */
.layer {
  position: relative;
  z-index: var(--z-content);
}


/* --------------------------------------------------------------------------
   Cushion de cursor (Home y Work) — CONTEXT.md §3
   cushion.js pinta los cuatro radial-gradients; aquí sólo vive la capa.
   -------------------------------------------------------------------------- */

.cushion {
  position: fixed;
  inset: 0;
  z-index: var(--z-cushion);
  pointer-events: none;
  opacity: 0;
  transition: opacity 500ms ease;
}
.cushion--absolute { position: absolute; }


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

.nav {
  display: flex;
  justify-content: center;
  padding: 20px var(--pad-x);
  flex: none;
}
.nav--sticky {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: var(--nav-bg);
  -webkit-backdrop-filter: var(--nav-blur);
  backdrop-filter: var(--nav-blur);
}
.nav--home { padding: var(--s-4) var(--pad-x); }

.nav__inner {
  width: 100%;
  max-width: var(--container);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-5);
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: var(--s-3);
}

.nav__name {
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: -0.01em;
}

.nav__role {
  font-size: var(--fs-meta);
  color: var(--muted);
  padding-left: var(--s-3);
  border-left: 1px solid var(--border);
  transition: opacity var(--d-hover) ease;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
}
.nav__link { color: var(--muted); }
.nav__link[aria-current="page"] { color: var(--ink); }


/* --------------------------------------------------------------------------
   Overlay de menú (mobile)
   -------------------------------------------------------------------------- */

.menu {
  position: fixed;
  inset: 0;
  z-index: var(--z-menu);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  padding: var(--s-4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  /* `visibility` NO se interpola: se conmuta con duración 0 y un retardo que
     sólo aplica al cerrar, para que el overlay siga siendo visible durante la
     salida. Si se transicionara, en el instante inicial de la apertura seguiría
     computando como `hidden` y sus links no serían enfocables — que es
     justamente lo que el focus trap de nav.js necesita. */
  transition: opacity var(--d-menu) var(--ease),
              transform var(--d-menu) var(--ease),
              visibility 0s linear var(--d-menu);
}
.menu.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition: opacity var(--d-menu) var(--ease),
              transform var(--d-menu) var(--ease),
              visibility 0s;
}

.menu__inner {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 30px;
  text-align: center;
}

.menu__link {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--fs-menu);
  line-height: 1.25;
  letter-spacing: -0.03em;
}

/* Fuera del desktop, siempre. */
@media (min-width: 681px) {
  .menu { display: none; }
}

/* Bloqueo de scroll mientras el overlay está abierto. */
body.menu-open { overflow: hidden; }


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

.footer {
  flex: none;
  display: flex;
  justify-content: center;
  padding: 0 var(--pad-x) 20px;
}
.footer--push { margin-top: auto; }

.footer__inner {
  width: 100%;
  max-width: var(--container);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-2) 12px;
  border-top: 1px solid var(--border-hairline);
  padding-top: var(--s-3);
  font-size: var(--fs-label);
  letter-spacing: 0.04em;
  color: var(--muted);
}
.footer__meta {
  display: flex;
  align-items: center;
  gap: 20px;
}
/* Aviso legal y Privacidad existen en el markup pero están ocultos. */
.footer__legal { display: none; }


/* --------------------------------------------------------------------------
   Alternancia desktop / mobile
   -------------------------------------------------------------------------- */

[data-mobile] { display: none; }


/* ==========================================================================
   PÁGINAS
   ========================================================================== */

/* ---- Home: pantalla completa, sin scroll ---- */

.page--home {
  height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  overflow: hidden;
  isolation: isolate;
}
/* La página sin scroll se declara en el <body> (body--home), no con :has():
   es estructural y conviene que no dependa del soporte del selector. */
html:has(body.body--home),
body.body--home { height: 100%; overflow: hidden; }

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 36px;
  padding: 0 var(--pad-x);
  overflow: hidden;
}

/* H1 por letras. El hover vive en el bloque de hover del final. */
.word { display: inline-block; white-space: nowrap; }
.letter {
  display: inline-block;
  transition: color 140ms var(--ease), transform 260ms var(--ease);
  transition-delay: 90ms;  /* retorno perezoso: al salir, espera 90ms */
}

.home-line-mobile { display: none; }

.home-foot { display: flex; justify-content: center; padding: 0 var(--pad-x) 36px; }
.home-foot__grid {
  width: 100%;
  max-width: var(--container);
  display: grid;
  grid-template-columns: 6fr 5fr;
  gap: var(--gap-case);
  align-items: end;
}
.home-pitch {
  font-size: var(--fs-body-s);
  line-height: 1.7;
  color: var(--muted);
  max-width: 52ch;
}
.home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}
.home-foot-mobile {
  flex-direction: column;
  align-items: center;
  gap: 18px;
  padding: 0 var(--s-4) 28px;
}
.home-foot-mobile__role {
  font-size: var(--fs-caption);
  letter-spacing: 0.04em;
  color: var(--muted);
}
.home-foot-mobile__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}


/* ---- Work ---- */

.work-header { padding: 72px var(--pad-x) var(--s-6); }
.work-header__inner {
  width: 100%;
  max-width: var(--container);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.work-main { padding: 0 var(--pad-x) var(--s-8); }


/* ---- Caso de estudio ---- */

html { scroll-behavior: smooth; }

.case-band {
  display: flex;
  justify-content: center;
  padding-left: var(--pad-x);
  padding-right: var(--pad-x);
}
.case-band__inner {
  width: 100%;
  max-width: var(--container-text);
  display: flex;
  flex-direction: column;
}
.case-band__inner--wide { max-width: var(--container); }

.case-header  { padding-top: clamp(52px, 8vw, 120px); padding-bottom: clamp(48px, 7vw, 96px); }
.case-hero    { padding-bottom: var(--rhythm-sm); }
.case-section { padding-bottom: var(--rhythm); }
.case-section--top { padding-top: clamp(36px, 6vw, 64px); }
.case-section--ink { padding-top: var(--rhythm); padding-bottom: var(--rhythm); }
.case-close   { padding-bottom: var(--rhythm-sm); }


/* ---- About: una sola pantalla ---- */

.about-main {
  flex: 1;
  min-height: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: clamp(28px, 5vh, 64px) var(--pad-x);
}
.about-split {
  width: 100%;
  max-width: var(--container);
  display: grid;
  grid-template-columns: 1fr 0.62fr;
  gap: clamp(40px, 6vw, 88px);
  align-items: center;
}
.about-col {
  display: flex;
  flex-direction: column;
  gap: clamp(24px, 4vh, 44px);
  max-width: var(--measure-body);
}
.about-intro { display: flex; flex-direction: column; gap: 18px; }
.about-pitch,
.about-tools {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding-top: clamp(20px, 3vh, 32px);
}
.about-tools { gap: var(--s-3); }
.about-tools__list { display: flex; flex-wrap: wrap; gap: 10px; }
.about-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 28px;
}
.about-portrait { width: 100%; display: flex; flex-direction: column; gap: 12px; }

/* Sin scroll en desktop, sólo si la ventana da de sí. */
@media (min-width: 1024px) and (min-height: 720px) {
  body.body--about { overflow: hidden; }
  .page--about { height: 100vh; }
  .about-portrait .media-slot { max-height: calc(100vh - 260px); }
}
@media (max-width: 1023px) {
  .about-split { grid-template-columns: 1fr; gap: 40px; }
  .about-portrait { max-width: 280px; }
}


/* ==========================================================================
   ≤860px — tablet
   ========================================================================== */

@media (max-width: 860px) {
  :root { --pad-x: 24px; }

  .two-col     { grid-template-columns: 1fr !important; gap: var(--s-5) !important; }
  .navmid      { display: none; }
  .home-foot__grid { grid-template-columns: 1fr; gap: var(--s-5); align-items: start; }
}


/* ==========================================================================
   ≤680px — mobile
   ========================================================================== */

@media (max-width: 680px) {
  [data-desktop] { display: none !important; }
  [data-mobile]  { display: flex; }

  .nav {
    z-index: var(--z-nav-open);
    padding-top: 14px;
    padding-bottom: 14px;
  }
  .nav__name { font-size: 15px; }
  .nav__role { display: none; }

  .footer__inner {
    justify-content: center;
    font-size: var(--fs-label-s);
    /* En móvil el footer va sin la línea superior. Antes usaba --border-image,
       que era transparente; ese token ya no existe. */
    border-top-color: transparent;
  }
  .footer__meta { display: none; }

  /* Home: el H1 fluye en varias líneas y gana "by Cristian Báez". */
  .h1-home {
    font-size: clamp(30px, 10.5vw, 48px);
    line-height: 1.16;
    white-space: normal;
    text-wrap: balance;
  }
  .home-line-mobile { display: inline; }

  /* El cushion se vuelve estático y centrado: halo azul detrás del H1. */
  .page--home .cushion {
    opacity: 1;
    background:
      radial-gradient(190px circle at 49% 45%, rgba(11,11,12,0.075), rgba(11,11,12,0) 68%),
      radial-gradient(175px circle at 51% 49%, rgba(255,255,255,0.9), rgba(255,255,255,0) 66%),
      radial-gradient(155px circle at 50% 47%, rgba(46,92,255,0.24), rgba(46,92,255,0.10) 45%, rgba(46,92,255,0) 72%),
      radial-gradient(340px circle at 50% 47%, rgba(46,92,255,0.12), rgba(46,92,255,0) 70%);
  }

  /* About: una columna con orden explícito. */
  .about-main { padding-top: var(--s-4); padding-bottom: var(--s-4); }
  .about-split {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 26px;
  }
  .about-col       { display: contents; }
  .about-intro     { order: 1; }
  .about-pitch     { order: 2; padding-top: 20px; }
  .about-portrait  { order: 3; max-width: 220px; align-self: center; }
  .about-portrait__caption { display: none; }
  .about-tools     { order: 4; padding-top: 20px; }
  .about-cta       { order: 5; justify-content: center; }
}


/* ==========================================================================
   Hover del H1 del Home — fuera de táctil, como todo el resto.
   ========================================================================== */

@media (hover: hover) and (pointer: fine) and (min-width: 681px) {
  .letter:hover {
    color: var(--accent);
    transform: translateY(-3px);
    transition-delay: 0ms;
  }
}