/* Atalaya — demo animada «centinela». Blanco y negro, un solo acento naranja, mono y tramado. */

:root {
  --papel: #e9e9e7;
  --papel-2: #f4f4f2;
  --tinta: #0c0c0c;
  --gris: #a2a2a0;
  --gris-2: #5f5f5d;
  --negro: #050505;
  --naranja: #ff4f12;
  --naranja-2: #ff6a33;
  --mono: ui-monospace, "JetBrains Mono", "SFMono-Regular", "Cascadia Mono", Menlo, Consolas,
          "Liberation Mono", "DejaVu Sans Mono", monospace;
  --radio: 14px;
  --gutter: clamp(16px, 2.2vw, 28px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--papel);
  color: var(--tinta);
  font: 14px/1.55 var(--mono);
  overflow-x: hidden;
}
a { color: inherit; }
h1, h2, h3, p { margin: 0; }
:focus-visible { outline: 2px solid var(--naranja); outline-offset: 3px; }

.sr {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.saltar {
  position: fixed; left: 12px; top: -60px; z-index: 50; padding: 10px 14px;
  background: var(--tinta); color: #fff; border-radius: 8px; text-decoration: none;
}
.saltar:focus { top: 12px; }

.lienzo { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

/* ── texto de matriz de puntos (rótulos grandes) ─────────────────────────────── */
/* El texto sigue siendo HTML; la trama de puntos se recorta con background-clip. */
.pix { font-weight: 800; letter-spacing: .04em; }
@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .pix {
    /* --punto se hereda: la tarjeta negra o el titular oscuro lo cambian a claro */
    background-image: radial-gradient(circle, var(--punto, var(--tinta)) 0 42%, transparent 48%);
    background-size: .085em .085em;
    -webkit-background-clip: text; background-clip: text;
    color: transparent;
  }
}

/* ── botones cuadrados con flecha ─────────────────────────────────────────── */
.cuadro {
  display: inline-grid; place-items: center; flex: none;
  width: 30px; height: 30px; border-radius: 6px;
  font: 700 18px/1 var(--mono); text-decoration: none;
  transition: transform .25s ease, background-color .25s ease;
}
.cuadro-naranja { background: var(--naranja); color: #fff; }
.cuadro-oscuro { background: var(--tinta); color: #fff; }
a.cuadro:hover, a:hover > .cuadro { transform: translateX(2px); }
a.cuadro-naranja:hover { background: var(--naranja-2); }

/* ── barra superior en píldora ────────────────────────────────────────────── */
.barra {
  position: fixed; z-index: 20; top: 12px; left: var(--gutter); right: var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  pointer-events: none;
}
.barra > * { pointer-events: auto; }
.marca {
  display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 14px 0 8px;
  background: rgba(12, 12, 12, .88); color: #fff; border-radius: 999px; text-decoration: none;
  font-weight: 700; font-size: 12px; letter-spacing: .18em;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.marca-glifo {
  width: 24px; height: 24px; border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, var(--naranja) 0 3px, transparent 3.5px),
    radial-gradient(circle, transparent 0 7px, #fff 7.5px 9px, transparent 9.5px);
}
.pildora {
  position: absolute; left: 50%; transform: translateX(-50%);
  display: flex; gap: 2px; padding: 4px; background: #fff; border-radius: 999px;
  box-shadow: 0 1px 0 rgba(0,0,0,.06), 0 8px 24px -12px rgba(0,0,0,.35);
}
.pildora a {
  padding: 7px 14px; border-radius: 999px; text-decoration: none; font-size: 12px; color: #333;
  transition: background-color .3s ease, color .3s ease;
}
.pildora a:hover { background: #ededeb; }
.pildora a.activo { background: var(--tinta); color: #fff; }
.cta-mini {
  display: inline-flex; align-items: center; gap: 10px; height: 40px; padding: 0 16px 0 5px;
  background: rgba(12, 12, 12, .88); color: #fff; border-radius: 10px; text-decoration: none; font-size: 12px;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.cta-mini .cuadro { background: var(--naranja); }

/* ── 1 · hero ─────────────────────────────────────────────────────────────── */
.hero { position: relative; height: 240vh; height: 240svh; }
.hero-fijo {
  position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden;
  background:
    radial-gradient(90% 70% at 70% 45%, #f7f7f5 0%, transparent 70%),
    radial-gradient(60% 50% at 10% 80%, #dcdcda 0%, transparent 70%),
    var(--papel);
}
.flor-caja { position: absolute; left: 42%; right: 1%; top: 9%; bottom: 0; pointer-events: none; }
.hero-intro {
  position: absolute; left: var(--gutter); top: 24%; max-width: 33ch; font-size: 12px; color: #333;
  display: grid; gap: 22px; justify-items: start;
}
.btn-claro, .btn-naranja {
  display: inline-flex; align-items: center; gap: 14px; padding: 5px 18px 5px 5px; border-radius: 8px;
  text-decoration: none; font-size: 12px;
}
.btn-claro { background: #fff; color: var(--tinta); box-shadow: 0 6px 20px -12px rgba(0,0,0,.4); }
.hero-titulos {
  position: absolute; left: var(--gutter); right: var(--gutter); bottom: clamp(20px, 4vh, 44px);
  display: flex; justify-content: space-between; align-items: flex-end; gap: 6vw;
}
.titular {
  font-weight: 600; font-size: clamp(1.35rem, 2.55vw, 2.35rem); line-height: 1.12; letter-spacing: -.02em;
  max-width: 21ch; text-wrap: balance;
}
.titular-der { text-align: right; }
.gris { color: var(--gris); transition: color .6s ease; }
.gris.on { color: var(--tinta); }

/* ── 2 · bento ────────────────────────────────────────────────────────────── */
.bento { position: relative; padding: clamp(64px, 10vh, 120px) var(--gutter) clamp(64px, 10vh, 120px); background: var(--papel); }
.bento-cab { display: grid; gap: 14px; margin-bottom: 36px; max-width: 60ch; }
.bento-cab .titular { max-width: 30ch; }
.rotulo { font-size: 11px; letter-spacing: .28em; text-transform: uppercase; color: var(--gris-2); }
.rejilla { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.tarjeta {
  position: relative; display: flex; flex-direction: column; gap: 14px; min-height: 280px;
  padding: 20px; border-radius: var(--radio); overflow: hidden;
}
.tarjeta.alta { min-height: 520px; }
.tarjeta h3 { font-size: 15px; font-weight: 700; }
.tarjeta-texto { font-size: 12.5px; color: inherit; opacity: .78; max-width: 40ch; }
.tarjeta-clara { background: linear-gradient(180deg, #f9f9f8, #efefed); }
.tarjeta-gris { background: #dadad8; }
.tarjeta-negra { background: var(--negro); color: #eaeae8; justify-content: flex-start; }
.tarjeta-negra .tarjeta-texto { opacity: .85; }
.tarjeta-negra .codigo { --punto: #f2f2f0; margin-top: auto; }
.tarjeta-trama { background: #f9f9f8; padding: 8px; }
.codigo { font-size: clamp(2.6rem, 4.2vw, 3.6rem); line-height: 1; }
.codigo-grande { font-size: clamp(3.4rem, 6vw, 5.4rem); }
.pie-tarjeta {
  margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 6px 6px 6px 14px; background: rgba(255,255,255,.75); border-radius: 10px; font-size: 11.5px; color: #444;
}
.pie-claro { background: #ededeb; }
.dato b { font-size: 15px; color: var(--tinta); margin-right: 4px; }
.trama { position: relative; flex: 1; min-height: 330px; border-radius: 10px; overflow: hidden; background: var(--negro); }
.trama-leyenda {
  position: absolute; left: 10px; top: 10px; padding: 4px 8px; border-radius: 6px;
  background: rgba(5,5,5,.7); color: #fff; font-size: 10.5px; letter-spacing: .08em;
}
.trama-leyenda::before {
  content: ""; display: inline-block; width: 6px; height: 6px; margin-right: 7px; border-radius: 50%;
  background: var(--naranja); vertical-align: 1px; animation: latido 1.4s ease-in-out infinite;
}
@keyframes latido { 50% { opacity: .25; } }
.barras { display: flex; align-items: flex-end; gap: 6px; height: 64px; }
.barras i { flex: 1; height: calc(var(--v) * 100%); background: #cfcfcd; border-radius: 3px; }
.barras i.pico { background: var(--naranja); }

.aparece { transition: opacity .9s ease, transform .9s cubic-bezier(.2,.7,.2,1); }
.js .aparece:not(.visto) { opacity: 0; transform: translateY(28px); }
.rejilla > .aparece:nth-child(3n+2) { transition-delay: .08s; }
.rejilla > .aparece:nth-child(3n) { transition-delay: .16s; }

/* ── 3 · sección oscura ───────────────────────────────────────────────────── */
.oscura { position: relative; height: 190vh; height: 190svh; background: var(--negro); color: #eaeae8; }
.oscura-fijo { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; }
.oscura-centro {
  position: absolute; left: var(--gutter); right: var(--gutter); top: 21%;
  display: grid; justify-items: center; gap: 26px; text-align: center;
}
.rotulo-claro { color: #9d9d9b; }
.titular-pix { font-size: clamp(1.9rem, 4.6vw, 4.3rem); line-height: 1.05; font-weight: 400; }
.tecleo { --punto: #f4f4f2; }
.tecleo .l { opacity: 0; }
.tecleo .l.on { opacity: 1; }
/* cursor naranja pegado a la última letra revelada (no al final de la línea reservada) */
.tecleo .l.cursor::after {
  content: ""; display: inline-block; width: .5em; height: .09em; margin-left: .06em; background: var(--naranja);
  animation: latido 1s steps(1) infinite;
}
.oscura-pie {
  position: absolute; left: var(--gutter); right: var(--gutter); bottom: clamp(20px, 5vh, 44px);
  display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; font-size: 12px; color: #b5b5b3;
}
.oscura-pie p { max-width: 42ch; }
.btn-naranja { color: #fff; padding-right: 20px; background: rgba(255,255,255,.04); }
.btn-naranja:hover { background: rgba(255,255,255,.1); }

/* ── 4 · preguntas y pie ──────────────────────────────────────────────────── */
.preguntas { padding: 96px var(--gutter); max-width: 880px; margin: 0 auto; display: grid; gap: 14px; }
.preguntas .titular { max-width: 28ch; margin-bottom: 18px; }
details { background: #f6f6f4; border-radius: 10px; padding: 0 18px; }
summary { cursor: pointer; padding: 16px 0; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--naranja); font-weight: 700; }
details[open] summary::after { content: "−"; }
details p { padding: 0 0 18px; color: #444; font-size: 13px; }
.pie { background: var(--negro); color: #bdbdbb; padding: 36px var(--gutter) 48px; font-size: 12px; display: grid; gap: 10px; }
.pie strong { color: #fff; }
.pie a { color: var(--naranja); }

/* ── tablet ───────────────────────────────────────────────────────────────── */
@media (max-width: 960px) {
  .rejilla { grid-template-columns: repeat(2, 1fr); }
  .tarjeta.alta { min-height: 440px; }
  .tarjeta-trama { grid-column: 1 / -1; }
  .flor-caja { left: 30%; }
}
@media (max-width: 720px) {
  .pildora a { padding: 7px 10px; font-size: 11px; }
  .cta-mini { padding: 0 5px; }
  .cta-mini-texto { display: none; }
  .marca-nombre { display: none; }
  .marca { padding: 0 8px; }
  .hero-titulos { flex-direction: column; align-items: stretch; gap: 14px; }
  .titular-der { text-align: left; }
  .oscura-pie { flex-direction: column; align-items: flex-start; }
}

/* ── móvil real ─────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
  body { font-size: 13px; }
  .barra { top: 10px; }
  .pildora { gap: 0; padding: 3px; }
  .pildora a { padding: 6px 8px; font-size: 10.5px; }
  .pildora a[data-seccion="inicio"] { display: none; }
  .hero { height: 200vh; height: 200svh; }
  .hero-intro { top: 76px; font-size: 11.5px; max-width: 100%; right: var(--gutter); gap: 14px; }
  .flor-caja { left: 6%; right: 6%; top: 25%; bottom: 36%; }
  .titular { font-size: 1.22rem; max-width: 26ch; }
  .rejilla { grid-template-columns: 1fr; }
  .tarjeta.alta { min-height: 0; }
  .tarjeta-negra { min-height: 380px; }
  .trama { min-height: 280px; }
  .oscura { height: 160vh; height: 160svh; }
  .oscura-centro { top: 17%; }
  .titular-pix { font-size: 2.1rem; }
}

/* ── movimiento reducido: todo estático y legible ────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero, .oscura { height: auto; }
  .hero-fijo, .oscura-fijo { position: relative; min-height: 100vh; min-height: 100svh; }
  .gris { transition: none; }
  .js .aparece:not(.visto), .aparece { opacity: 1; transform: none; transition: none; }
  .tecleo .l { opacity: 1; }
  .tecleo .l.cursor::after { display: none; }
  .trama-leyenda::before { animation: none; }
  .cuadro { transition: none; }
}