/* ─────────────────────────────────────────────────────────────
   BRECHA · sistema visual rojo y negro (rediseño oct-2026)
   Compartido por /, /servicio, /alianza e /ideas.
   ───────────────────────────────────────────────────────────── */
:root {
  --negro: #0E0D0C;
  --negro-2: #171514;
  --rojo: #DA2318;            /* fondos, botones y titulares grandes */
  --rojo-hondo: #A3140C;      /* hover */
  --rojo-txt: #C01D13;        /* texto rojo chico sobre papel (contraste AA) */
  --coral: #E8615A;           /* color del logo; texto rojo chico sobre negro (AA) */
  --papel: #F3EFE8;
  --papel-2: #E6E0D5;
  --linea: #D6CFC2;
  --tinta: #2A2724;
  --gris: #5B554F;
  --gris-claro: #B8B0A6;      /* texto secundario sobre negro */
  --placeholder: #8A837B;
  --linea-osc: rgba(243, 239, 232, .16);

  --display: 'Archivo', system-ui, sans-serif;
  --sans: 'Archivo', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, Menlo, monospace;

  --gutter: clamp(16px, 4vw, 48px);
  --max: 1280px;
  --nav-h: 64px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); }
body {
  background: var(--papel); color: var(--tinta);
  font-family: var(--sans); font-size: 17px; line-height: 1.6;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--rojo-txt); }
a:hover { color: var(--rojo-hondo); }
::selection { background: var(--rojo); color: #fff; }
:focus-visible { outline: 2px solid var(--coral); outline-offset: 3px; }
button, input, textarea, select { font: inherit; color: inherit; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 300; background: var(--rojo); color: #fff; padding: 10px 14px; font: 600 14px/1 var(--sans); text-decoration: none; }
.skip:focus { top: 12px; color: #fff; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); position: relative; }

/* ── Tipografía ── */
.display {
  font-family: var(--display); font-weight: 800; font-stretch: 66%;
  text-transform: uppercase; line-height: .9; letter-spacing: 0; text-wrap: balance;
}
.display .r, .r { color: var(--rojo); }
.oscuro .display .r, .oscuro .r { color: var(--rojo); }
.eyebrow {
  font: 500 12px/1.3 var(--mono); letter-spacing: .16em; text-transform: uppercase;
  color: var(--rojo-txt); display: inline-flex; align-items: center; gap: 10px;
}
.oscuro .eyebrow { color: var(--coral); }
.eyebrow.cuadro::before { content: ''; width: 8px; height: 8px; background: currentColor; flex: none; }
.mono { font-family: var(--mono); }
.lede { font-size: 18px; line-height: 1.6; color: var(--tinta); max-width: 56ch; text-wrap: pretty; }
.oscuro .lede { color: var(--gris-claro); }

/* ── Superficies ── */
.oscuro { background: var(--negro); color: var(--papel); }
.rojo { background: var(--rojo); color: var(--negro); }
.papel-2 { background: var(--papel-2); }
.textura { position: relative; overflow: hidden; }
.textura::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(rgba(243,239,232,.07) 1px, transparent 1.5px);
  background-size: 7px 7px;
}
.rojo.textura::before { background-image: radial-gradient(rgba(14,13,12,.16) 1px, transparent 1.5px); }
.textura > * { position: relative; }

/* ── Botones ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: 700 16px/1 var(--sans); padding: 17px 26px; text-decoration: none;
  border: 2px solid transparent; cursor: pointer; transition: background .18s, color .18s, border-color .18s, transform .15s;
}
.btn:active { transform: translateY(1px); }
.btn-rojo { background: var(--rojo); color: #fff; border-color: var(--rojo); }
.btn-rojo:hover { background: var(--rojo-hondo); border-color: var(--rojo-hondo); color: #fff; }
.btn-negro { background: var(--negro); color: var(--papel); border-color: var(--negro); }
.btn-negro:hover { background: var(--negro-2); color: #fff; border-color: var(--negro-2); }
.btn-borde { background: transparent; color: var(--negro); border-color: var(--negro); }
.btn-borde:hover { background: var(--negro); color: var(--papel); }
.btn-borde-claro { background: transparent; color: var(--papel); border-color: var(--papel); }
.btn-borde-claro:hover { background: var(--papel); color: var(--negro); }
.btn-sm { font-size: 14px; padding: 12px 18px; }
.btn[disabled] { opacity: .6; cursor: default; }
.link-mono {
  font: 500 13px/1.2 var(--mono); color: inherit; text-decoration: none;
  border-bottom: 1px solid var(--rojo); padding-bottom: 4px;
}
.link-mono:hover { color: var(--coral); }

/* ── Chips / pills ── */
.pill {
  display: inline-flex; align-items: center; border: 1.5px solid currentColor; border-radius: 99px;
  padding: 7px 13px; font: 600 12px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase;
}

/* ── NAV ── */
.nav {
  position: sticky; top: 0; z-index: 100; height: var(--nav-h);
  background: var(--negro); border-bottom: 1px solid rgba(243,239,232,.12);
}
.nav .wrap { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.marca { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--papel); flex: none; }
.marca:hover { color: var(--papel); }
.marca img { width: 34px; height: 34px; }
.marca-nombre { font: 800 24px/1 var(--display); font-stretch: 70%; letter-spacing: .03em; }
.marca-tag { font: 500 11px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--coral); margin-left: 2px; }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-links a {
  font: 500 12px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase;
  color: var(--gris-claro); text-decoration: none; padding: 6px 0 5px; border-bottom: 2px solid transparent;
}
.nav-links a:hover { color: var(--papel); }
.nav-links a[aria-current="page"], .nav-links a.aqui { color: var(--papel); border-bottom-color: var(--rojo); }
.nav-der { display: flex; align-items: center; gap: 18px; }
.nav-toggle {
  display: none; width: 44px; height: 44px; background: none; border: 1.5px solid rgba(243,239,232,.3);
  color: var(--papel); cursor: pointer; align-items: center; justify-content: center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block; width: 18px; height: 2px; background: currentColor; position: relative; transition: transform .2s, background .2s;
}
.nav-toggle span::before, .nav-toggle span::after { content: ''; position: absolute; left: 0; }
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav.abierto .nav-toggle span { background: transparent; }
.nav.abierto .nav-toggle span::before { transform: translateY(6px) rotate(45deg); }
.nav.abierto .nav-toggle span::after { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 1020px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    display: none; position: absolute; top: var(--nav-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0; background: var(--negro);
    border-bottom: 3px solid var(--rojo); padding: 8px var(--gutter) 18px;
  }
  .nav.abierto .nav-links { display: flex; }
  .nav-links a { display: block; font-size: 14px; padding: 15px 0; border-bottom: 1px solid rgba(243,239,232,.1); }
  .nav-links a[aria-current="page"], .nav-links a.aqui { border-bottom-color: rgba(243,239,232,.1); color: var(--coral); }
}
@media (max-width: 520px) {
  .nav-der .btn { display: none; }
  .marca-nombre { font-size: 22px; }
}

/* ── Franja de consignas ── */
.franja { background: var(--rojo); color: var(--negro); overflow: hidden; white-space: nowrap; }
.franja-pista { display: inline-flex; gap: 22px; padding: 16px 0; font: 600 13px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; animation: franja 38s linear infinite; }
.franja-pista span { flex: none; }
@keyframes franja { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ── Formularios ── */
.campo { display: flex; flex-direction: column; gap: 8px; }
.campo > label, .campo > .etq { font: 600 14px/1.2 var(--sans); color: var(--negro); }
.input {
  width: 100%; border: 2px solid var(--negro); background: #fff0; padding: 13px 14px;
  font: 400 15px/1.3 var(--mono); color: var(--negro); border-radius: 0; outline: none;
}
.input::placeholder { color: var(--placeholder); }
textarea.input { font-family: var(--sans); font-size: 15px; line-height: 1.5; resize: vertical; min-height: 110px; }
.input:focus { border-color: var(--rojo); box-shadow: 0 0 0 3px rgba(218,35,24,.18); }
.nota-campo { font: 400 12.5px/1.4 var(--mono); color: var(--gris); }
.opciones { display: flex; flex-wrap: wrap; gap: 8px; border: 0; }
.opciones legend { font: 600 14px/1.2 var(--sans); color: var(--negro); margin-bottom: 10px; width: 100%; }
.opcion { position: relative; }
.opcion input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.opcion span { display: inline-block; border: 1.5px solid var(--negro); padding: 9px 13px; font: 500 13px/1 var(--sans); color: var(--negro); cursor: pointer; transition: background .15s, color .15s; }
.opcion input:checked + span { background: var(--negro); color: var(--papel); }
.opcion input:focus-visible + span { outline: 2px solid var(--rojo); outline-offset: 2px; }
.trampa { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }
.msg-form { font: 500 12.5px/1.45 var(--mono); color: var(--gris); text-align: center; min-height: 1.45em; }
.msg-form.ok { color: #1F6B3A; }
.msg-form.err { color: var(--rojo-txt); }

/* ── Footer ── */
.pie { background: var(--negro); color: var(--gris-claro); border-top: 1px solid rgba(243,239,232,.12); }
.pie .wrap { display: flex; justify-content: space-between; align-items: center; gap: 24px 32px; flex-wrap: wrap; padding-top: 32px; padding-bottom: 32px; }
.pie .marca img { width: 30px; height: 30px; }
.pie .marca-nombre { font-size: 22px; }
.pie-links { display: flex; gap: 10px 24px; flex-wrap: wrap; list-style: none; font: 500 12px/1 var(--mono); }
.pie-links a { color: var(--gris-claro); text-decoration: none; }
.pie-links a:hover { color: var(--papel); }
.pie-copy { font: 500 11.5px/1.5 var(--mono); color: var(--gris-claro); }

/* ── Revelado al hacer scroll ── */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ── Transición entre páginas ── */
#brecha-transit {
  position: fixed; inset: 0; z-index: 9999; display: none; align-items: center; justify-content: center;
  background: var(--negro); font-family: var(--mono); opacity: 0; transition: opacity .2s ease;
}
#brecha-transit.on { display: flex; opacity: 1; }
#brecha-transit::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(rgba(243,239,232,.07) 1px, transparent 1.5px); background-size: 7px 7px;
}
#brecha-transit .bt-box { position: relative; text-align: center; padding: 0 24px; max-width: min(560px, 88vw); }
#brecha-transit .bt-ojo { width: 92px; height: 92px; margin: 0 auto 26px; animation: btPulso 1.4s ease-in-out infinite; }
@keyframes btPulso { 50% { transform: scale(1.06); opacity: .85; } }
#brecha-transit .bt-label { font-size: clamp(17px, 3.4vw, 25px); letter-spacing: .02em; color: var(--papel); white-space: pre; }
#brecha-transit .bt-sub { margin-top: 16px; font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--gris-claro); }
#brecha-transit .bt-bar { margin: 28px auto 0; width: min(280px, 60vw); height: 3px; background: rgba(243,239,232,.14); overflow: hidden; }
#brecha-transit .bt-bar span { display: block; height: 100%; width: 0; background: var(--rojo); transition: width .12s linear; }