/* =============================================================
   Synapse Reactive — Hoja de estilos maestra
   Derivada del Design System v1.0. Todos los valores provienen
   de los tokens oficiales. No usar valores sueltos "a ojo".
   ============================================================= */

/* ---------- 1. Tokens (Design System v1.0) ---------- */
:root {
  /* Primarios */
  --sr-blue: #0066FF;      /* Azul Eléctrico */
  --sr-navy: #001F3F;      /* Azul Profundo  */
  --sr-cyan: #00E5FF;      /* Cian Reactivo  */

  /* Funcionales */
  --sr-carbon: #1A1A1A;
  --sr-slate:  #4A4A4A;
  --sr-mist:   #F5F7FA;
  --sr-white:  #FFFFFF;
  --sr-success:#00D9A3;
  --sr-warning:#FFB800;
  --sr-error:  #FF3B5C;
  --sr-border: #DFE4EA;

  /* Escala Azul Eléctrico */
  --sr-blue-50:#E6F0FF; --sr-blue-100:#B3D1FF; --sr-blue-300:#66A3FF;
  --sr-blue-500:#0066FF; --sr-blue-600:#0052CC; --sr-blue-700:#003D99; --sr-blue-800:#002966;

  /* Escala Cian */
  --sr-cyan-50:#E6FCFF; --sr-cyan-100:#B3F5FF; --sr-cyan-300:#66ECFF;
  --sr-cyan-500:#00E5FF; --sr-cyan-600:#00B8CC; --sr-cyan-700:#008C99; --sr-cyan-800:#005F66;

  /* Escala Azul Profundo */
  --sr-navy-50:#E5E9EE; --sr-navy-100:#B3BDC9; --sr-navy-300:#6680A3;
  --sr-navy-500:#001F3F; --sr-navy-600:#001833; --sr-navy-700:#001226; --sr-navy-800:#000C1A;

  /* Tipografía */
  --sr-font-head: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --sr-font-body: "Inter", system-ui, -apple-system, sans-serif;
  --sr-font-mono: "JetBrains Mono", ui-monospace, monospace;

  /* Espaciado (base 8px) */
  --sr-space-1:4px; --sr-space-2:8px; --sr-space-3:12px; --sr-space-4:16px;
  --sr-space-6:24px; --sr-space-8:32px; --sr-space-12:48px; --sr-space-16:64px;
  --sr-space-24:96px; --sr-space-32:128px;

  /* Radios */
  --sr-radius-sm:4px; --sr-radius-md:8px; --sr-radius-lg:16px; --sr-radius-pill:999px;

  /* Sombras (azuladas, sutiles) */
  --sr-shadow-sm:0 1px 2px rgba(0,31,63,.06);
  --sr-shadow-md:0 4px 12px rgba(0,31,63,.10);
  --sr-shadow-lg:0 16px 40px rgba(0,31,63,.14);

  /* Layout */
  --sr-maxw: 1200px;
  --sr-readw: 680px;
  --sr-gutter: 24px;
  --sr-header-h: 72px;

  --sr-ease: cubic-bezier(.4,0,.2,1);
}

/* ---------- 2. Reset y base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--sr-header-h) + 16px);
}

body {
  font-family: var(--sr-font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--sr-carbon);
  background: var(--sr-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; height: auto; }
a { color: var(--sr-blue); text-decoration: none; transition: color .2s var(--sr-ease); }
a:hover { color: var(--sr-blue-600); }
ul, ol { padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }

:focus-visible {
  outline: 3px solid var(--sr-blue-300);
  outline-offset: 2px;
  border-radius: var(--sr-radius-sm);
}

/* ---------- 3. Tipografía ---------- */
h1, h2, h3, h4 {
  font-family: var(--sr-font-head);
  color: var(--sr-navy);
  line-height: 1.12;
  font-weight: 600;
  text-wrap: balance;
}
h1 { font-size: clamp(2.25rem, 5.5vw, 3.5rem); letter-spacing: -1px; line-height: 1.05; }
h2 { font-size: clamp(1.75rem, 3.6vw, 2.5rem); letter-spacing: -0.5px; }
h3 { font-size: clamp(1.35rem, 2.4vw, 1.75rem); letter-spacing: -0.3px; font-weight: 500; }
h4 { font-size: 1.25rem; letter-spacing: -0.1px; font-weight: 500; }

p { color: var(--sr-slate); }
p.lead { font-size: clamp(1.05rem, 1.8vw, 1.25rem); color: var(--sr-slate); line-height: 1.6; }
strong { color: var(--sr-carbon); font-weight: 600; }

.eyebrow {
  font-family: var(--sr-font-mono);
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--sr-blue);
  display: inline-flex;
  align-items: center;
  gap: var(--sr-space-2);
}
.eyebrow::before {
  content: "";
  width: 22px; height: 2px;
  background: var(--sr-cyan);
  display: inline-block;
}

/* ---------- 4. Layout ---------- */
.container { width: 100%; max-width: var(--sr-maxw); margin-inline: auto; padding-inline: var(--sr-gutter); }
.section { padding-block: clamp(var(--sr-space-16), 9vw, var(--sr-space-32)); }
.section--tight { padding-block: clamp(var(--sr-space-12), 6vw, var(--sr-space-24)); }
.section-head { max-width: 720px; margin-bottom: var(--sr-space-12); }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head .eyebrow { margin-bottom: var(--sr-space-4); }
.section-head h2 { margin-bottom: var(--sr-space-4); }

.grid { display: grid; gap: var(--sr-space-6); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

/* Secciones oscuras (Azul Profundo) */
.section--dark { background: var(--sr-navy); color: var(--sr-mist); }
.section--dark h1, .section--dark h2, .section--dark h3, .section--dark h4 { color: var(--sr-white); }
.section--dark p { color: rgba(245,247,250,.78); }
.section--dark .eyebrow { color: var(--sr-cyan); }
.section--dark a { color: var(--sr-cyan); }

.section--mist { background: var(--sr-mist); }

/* ---------- 5. Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--sr-space-2);
  font-family: var(--sr-font-body); font-weight: 500; font-size: 1rem; line-height: 1;
  padding: 14px 26px; border-radius: var(--sr-radius-md);
  border: 1.5px solid transparent; cursor: pointer;
  transition: background .2s var(--sr-ease), border-color .2s var(--sr-ease), transform .15s var(--sr-ease), box-shadow .2s var(--sr-ease);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn svg { width: 18px; height: 18px; }

.btn--primary { background: var(--sr-blue); color: #fff; }
.btn--primary:hover { background: var(--sr-blue-600); color: #fff; box-shadow: var(--sr-shadow-md); }
.btn--primary:active { background: var(--sr-blue-700); }

.btn--secondary { background: transparent; color: var(--sr-blue); border-color: var(--sr-blue); }
.btn--secondary:hover { background: var(--sr-blue-50); color: var(--sr-blue); }

.btn--ghost { background: transparent; color: var(--sr-blue); padding-inline: 8px; }
.btn--ghost:hover { color: var(--sr-blue-600); }
.btn--ghost .arrow { transition: transform .2s var(--sr-ease); }
.btn--ghost:hover .arrow { transform: translateX(4px); }

.btn--wa { background: #25D366; color: #fff; }
.btn--wa:hover { background: #1EBE5A; color: #fff; box-shadow: var(--sr-shadow-md); }

/* Botones sobre fondo oscuro */
.on-dark .btn--secondary { color: #fff; border-color: rgba(255,255,255,.35); }
.on-dark .btn--secondary:hover { background: rgba(255,255,255,.08); border-color: #fff; color: #fff; }

.btn-row { display: flex; flex-wrap: wrap; gap: var(--sr-space-3); }
.btn-row.center { justify-content: center; }

/* ---------- 6. Tags / Badges ---------- */
.tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--sr-font-mono); font-size: .7rem; font-weight: 500;
  letter-spacing: .5px; text-transform: uppercase;
  padding: 5px 12px; border-radius: var(--sr-radius-pill);
  background: var(--sr-mist); color: var(--sr-slate); border: 1px solid var(--sr-border);
}
.tag--accent { background: var(--sr-cyan-50); color: var(--sr-cyan-800); border-color: transparent; }
.tag--blue   { background: var(--sr-blue-50); color: var(--sr-blue-700); border-color: transparent; }

/* ---------- 7. Cards ---------- */
.card {
  background: #fff; border: 1px solid var(--sr-border); border-radius: var(--sr-radius-lg);
  padding: var(--sr-space-8); box-shadow: var(--sr-shadow-sm);
  transition: box-shadow .25s var(--sr-ease), transform .25s var(--sr-ease), border-color .25s var(--sr-ease);
  height: 100%;
}
.card--link:hover { box-shadow: var(--sr-shadow-md); transform: translateY(-3px); border-color: var(--sr-blue-100); }
.card h3, .card h4 { margin-bottom: var(--sr-space-3); }
.card p { font-size: .975rem; }

.card__icon {
  width: 52px; height: 52px; border-radius: var(--sr-radius-md);
  display: grid; place-items: center; margin-bottom: var(--sr-space-6);
  background: var(--sr-blue-50); color: var(--sr-blue);
}
.card__icon svg { width: 26px; height: 26px; }

.section--dark .card { background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.12); box-shadow: none; }
.section--dark .card__icon { background: rgba(0,229,255,.12); color: var(--sr-cyan); }

/* Lista con check */
.checklist li {
  position: relative; padding-left: 30px; margin-bottom: var(--sr-space-3);
  color: var(--sr-slate); font-size: .975rem;
}
.checklist li::before {
  content: ""; position: absolute; left: 0; top: 3px;
  width: 20px; height: 20px; border-radius: var(--sr-radius-pill);
  background: var(--sr-success);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/70% no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/70% no-repeat;
}
.section--dark .checklist li { color: rgba(245,247,250,.82); }

/* ---------- 8. Header / Navegación ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: var(--sr-header-h);
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s var(--sr-ease), background .25s var(--sr-ease);
}
.site-header.scrolled { border-bottom-color: var(--sr-border); box-shadow: var(--sr-shadow-sm); }
.site-header .container { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: var(--sr-space-6); }

.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--sr-font-head); font-weight: 600; color: var(--sr-navy); font-size: 1.15rem; letter-spacing: -0.3px; }
.brand:hover { color: var(--sr-navy); }
.brand img { width: 36px; height: 36px; }
.brand span b { color: var(--sr-blue); font-weight: 600; }

.nav { display: flex; align-items: center; gap: var(--sr-space-8); }
.nav > a:not(.btn) { color: var(--sr-slate); font-size: .95rem; font-weight: 500; position: relative; }
.nav > a:not(.btn):hover, .nav > a[aria-current="page"] { color: var(--sr-navy); }
.nav > a[aria-current="page"]::after {
  content: ""; position: absolute; left: 0; bottom: -6px; width: 100%; height: 2px;
  background: var(--sr-cyan); border-radius: 2px;
}
.nav .btn { padding: 10px 18px; font-size: .9rem; margin-left: calc(var(--sr-space-8) * -1 + var(--sr-space-4)); }

.nav-toggle { display: none; background: none; border: 0; padding: 8px; color: var(--sr-navy); }
.nav-toggle svg { width: 26px; height: 26px; }

@media (max-width: 940px) {
  .nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav.open {
    display: flex; flex-direction: column; align-items: stretch; gap: 0;
    position: fixed; inset: var(--sr-header-h) 0 auto 0;
    background: #fff; padding: var(--sr-space-4) var(--sr-gutter) var(--sr-space-8);
    border-bottom: 1px solid var(--sr-border); box-shadow: var(--sr-shadow-lg);
    max-height: calc(100vh - var(--sr-header-h)); overflow-y: auto;
  }
  .nav.open > a:not(.btn) { width: 100%; padding: 15px 0; border-bottom: 1px solid var(--sr-border); font-size: 1.05rem; }
  .nav.open > a[aria-current="page"]::after { display: none; }
  .nav.open .btn { margin-left: 0; margin-top: var(--sr-space-6); padding: 14px 26px; font-size: 1rem; }
}

/* ---------- 9. Hero ---------- */
.hero { position: relative; background: var(--sr-navy); color: var(--sr-mist); overflow: hidden; isolation: isolate; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(680px 480px at 78% 8%, rgba(0,102,255,.28), transparent 60%),
    radial-gradient(560px 420px at 10% 100%, rgba(0,229,255,.14), transparent 60%);
}
.hero .container { position: relative; z-index: 1; }
.hero-inner { padding-block: clamp(var(--sr-space-16), 12vh, 140px); max-width: 780px; }
.hero .eyebrow { color: var(--sr-cyan); margin-bottom: var(--sr-space-6); }
.hero h1 { color: #fff; margin-bottom: var(--sr-space-6); }
.hero h1 .accent { color: var(--sr-cyan); }
.hero p.lead { color: rgba(245,247,250,.85); margin-bottom: var(--sr-space-8); max-width: 620px; }
.hero .btn-row { margin-bottom: var(--sr-space-12); }
.hero-tagline { font-family: var(--sr-font-mono); font-size: .8rem; letter-spacing: .5px; color: rgba(0,229,255,.9); }

/* Red neuronal decorativa del hero */
.hero-neural { position: absolute; inset: 0; z-index: -1; opacity: .5; pointer-events: none; }
.hero-neural .edge { stroke: var(--sr-cyan); stroke-linecap: round; opacity: .18; }
.hero-neural .node { fill: var(--sr-cyan); opacity: .55; }
.hero-neural .pulse { fill: #fff; }

/* ---------- 10. Franja de logos / stats ---------- */
.stat-band { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sr-space-6); text-align: center; }
@media (max-width: 640px){ .stat-band { grid-template-columns: 1fr; gap: var(--sr-space-8); } }
.stat { }
.stat .num { font-family: var(--sr-font-head); font-size: clamp(2rem, 4vw, 2.75rem); font-weight: 600; color: var(--sr-blue); line-height: 1; letter-spacing: -1px; }
.section--dark .stat .num { color: var(--sr-cyan); }
.stat .label { font-size: .95rem; color: var(--sr-slate); margin-top: var(--sr-space-2); }
.section--dark .stat .label { color: rgba(245,247,250,.75); }

/* ---------- 11. Proceso (pasos) ---------- */
.step { position: relative; }
.step__num {
  font-family: var(--sr-font-mono); font-size: .8rem; font-weight: 700;
  width: 40px; height: 40px; border-radius: var(--sr-radius-pill);
  display: grid; place-items: center; margin-bottom: var(--sr-space-4);
  background: var(--sr-navy); color: var(--sr-cyan); border: 1px solid var(--sr-navy);
}

/* ---------- 12. Callout ---------- */
.callout {
  border-left: 4px solid var(--sr-blue); background: var(--sr-blue-50);
  padding: var(--sr-space-6) var(--sr-space-8); border-radius: 0 var(--sr-radius-md) var(--sr-radius-md) 0;
}
.callout.warning { border-left-color: var(--sr-warning); background: #FFF8E6; }
.callout p { color: var(--sr-carbon); margin: 0; }
.callout strong { color: var(--sr-navy); }

/* ---------- 13. Split (dos columnas texto + media) ---------- */
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(var(--sr-space-8), 6vw, var(--sr-space-24)); align-items: center; }
.split.reverse .split__media { order: -1; }
@media (max-width: 860px){ .split, .split.reverse { grid-template-columns: 1fr; } .split.reverse .split__media { order: 0; } }

/* Panel neural reutilizable (media) */
.neural-panel {
  aspect-ratio: 1 / 1; border-radius: var(--sr-radius-lg); background: var(--sr-navy);
  position: relative; overflow: hidden; box-shadow: var(--sr-shadow-lg);
  max-width: 460px; margin-inline: auto; width: 100%;
}
.neural-panel::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(300px 240px at 70% 20%, rgba(0,102,255,.35), transparent 60%);
}

/* ---------- 14. FAQ ---------- */
.faq { border-top: 1px solid var(--sr-border); }
.faq details { border-bottom: 1px solid var(--sr-border); }
.faq summary {
  list-style: none; cursor: pointer; padding: var(--sr-space-6) 0;
  font-family: var(--sr-font-head); font-weight: 500; font-size: 1.15rem; color: var(--sr-navy);
  display: flex; align-items: center; justify-content: space-between; gap: var(--sr-space-4);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .ico { flex: none; width: 24px; height: 24px; color: var(--sr-blue); transition: transform .25s var(--sr-ease); }
.faq details[open] summary .ico { transform: rotate(45deg); }
.faq details p { padding-bottom: var(--sr-space-6); max-width: var(--sr-readw); }

/* ---------- 15. Contacto ---------- */
.contact-card { text-align: center; }
.contact-card .card__icon { margin-inline: auto; }
.field { margin-bottom: var(--sr-space-4); }
.field label { display: block; font-size: .85rem; font-weight: 600; color: var(--sr-navy); margin-bottom: var(--sr-space-2); }
.field input, .field select, .field textarea {
  width: 100%; font-family: inherit; font-size: 1rem; color: var(--sr-carbon);
  background: var(--sr-mist); border: 1px solid var(--sr-border); border-radius: var(--sr-radius-sm);
  padding: 12px 14px; transition: border-color .2s var(--sr-ease), box-shadow .2s var(--sr-ease);
}
.field input::placeholder, .field textarea::placeholder { color: var(--sr-slate); opacity: .7; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--sr-blue); box-shadow: 0 0 0 3px var(--sr-blue-50);
}
.field textarea { min-height: 120px; resize: vertical; }
.form-note { font-size: .8rem; color: var(--sr-slate); margin-top: var(--sr-space-3); }

/* ---------- 16. Footer ---------- */
.site-footer { background: var(--sr-navy-700); color: rgba(245,247,250,.72); padding-block: var(--sr-space-16) var(--sr-space-8); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: var(--sr-space-8); margin-bottom: var(--sr-space-12); }
@media (max-width: 860px){ .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--sr-space-12) var(--sr-space-8); } }
@media (max-width: 480px){ .footer-grid { grid-template-columns: 1fr; } }
.site-footer .brand { color: #fff; margin-bottom: var(--sr-space-4); }
.site-footer .brand:hover { color: #fff; }
.footer-about { max-width: 300px; font-size: .925rem; }
.footer-tag { font-family: var(--sr-font-mono); font-size: .75rem; color: var(--sr-cyan); margin-top: var(--sr-space-4); letter-spacing: .5px; }
.footer-col h4 { color: #fff; font-family: var(--sr-font-head); font-size: .8rem; text-transform: uppercase; letter-spacing: 1px; font-weight: 600; margin-bottom: var(--sr-space-4); }
.footer-col a { display: block; color: rgba(245,247,250,.72); font-size: .925rem; padding: 5px 0; }
.footer-col a:hover { color: var(--sr-cyan); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: var(--sr-space-6); display: flex; flex-wrap: wrap; gap: var(--sr-space-4); justify-content: space-between; align-items: center; font-size: .82rem; }
.footer-bottom a { color: rgba(245,247,250,.72); }
.footer-bottom a:hover { color: var(--sr-cyan); }

/* ---------- 17. Banner de cookies ---------- */
.cookie-banner {
  position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 200;
  max-width: 520px; margin-inline: auto;
  background: var(--sr-navy); color: var(--sr-mist);
  border: 1px solid rgba(255,255,255,.12); border-radius: var(--sr-radius-lg);
  padding: var(--sr-space-6); box-shadow: var(--sr-shadow-lg);
  display: none;
}
.cookie-banner.show { display: block; animation: rise .4s var(--sr-ease); }
.cookie-banner p { color: rgba(245,247,250,.85); font-size: .9rem; margin-bottom: var(--sr-space-4); }
.cookie-banner a { color: var(--sr-cyan); }
.cookie-banner .btn-row { justify-content: flex-end; }
.cookie-banner .btn { padding: 10px 18px; font-size: .9rem; }
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }

/* ---------- 18. Page hero (interior) ---------- */
.page-hero { background: var(--sr-navy); color: var(--sr-mist); position: relative; overflow: hidden; isolation: isolate; }
.page-hero::before { content:""; position:absolute; inset:0; z-index:-1; background: radial-gradient(600px 400px at 85% 0%, rgba(0,102,255,.22), transparent 60%); }
.page-hero .inner { padding-block: clamp(var(--sr-space-16), 10vw, 120px); max-width: 760px; }
.page-hero .eyebrow { color: var(--sr-cyan); margin-bottom: var(--sr-space-4); }
.page-hero h1 { color: #fff; margin-bottom: var(--sr-space-4); }
.page-hero p.lead { color: rgba(245,247,250,.85); }
.breadcrumb { font-family: var(--sr-font-mono); font-size: .75rem; color: rgba(0,229,255,.85); margin-bottom: var(--sr-space-6); letter-spacing: .5px; }
.breadcrumb a { color: rgba(245,247,250,.7); }
.breadcrumb a:hover { color: var(--sr-cyan); }

/* ---------- 19. Utilidades ---------- */
.mt-4{margin-top:var(--sr-space-4)} .mt-6{margin-top:var(--sr-space-6)} .mt-8{margin-top:var(--sr-space-8)} .mt-12{margin-top:var(--sr-space-12)}
.mb-0{margin-bottom:0} .center{text-align:center} .measure{max-width:var(--sr-readw)}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip-link{position:absolute;left:-999px;top:8px;background:#fff;padding:10px 16px;border-radius:var(--sr-radius-md);z-index:300;box-shadow:var(--sr-shadow-md)}
.skip-link:focus{left:16px}

/* Aparición al hacer scroll */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s var(--sr-ease), transform .6s var(--sr-ease); }
.reveal.in { opacity: 1; transform: none; }

/* Contenido legal */
.legal { max-width: var(--sr-readw); }
.legal h2 { font-size: 1.5rem; margin-top: var(--sr-space-12); margin-bottom: var(--sr-space-4); }
.legal h3 { font-size: 1.15rem; margin-top: var(--sr-space-8); margin-bottom: var(--sr-space-3); }
.legal p, .legal li { color: var(--sr-slate); margin-bottom: var(--sr-space-4); }
.legal ul { list-style: disc; padding-left: 1.4em; }
.legal ul li { margin-bottom: var(--sr-space-2); }
.legal a { text-decoration: underline; }

/* ---------- 20. Acceso / Login ---------- */
.auth-body { min-height: 100dvh; display: grid; place-items: center; padding: var(--sr-space-6); background: var(--sr-navy); position: relative; overflow: hidden; }
.auth-body::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(600px 420px at 75% 8%, rgba(0,102,255,.30), transparent 60%),
    radial-gradient(500px 360px at 12% 100%, rgba(0,229,255,.14), transparent 60%);
}
.auth-neural { position: absolute; inset: 0; z-index: 0; opacity: .5; pointer-events: none; }
.auth-neural .edge { stroke: var(--sr-cyan); stroke-linecap: round; opacity: .18; }
.auth-neural .node { fill: var(--sr-cyan); opacity: .5; }
.auth-neural .pulse { fill: #fff; }

.auth-card {
  position: relative; z-index: 1; width: 100%; max-width: 420px; text-align: center;
  background: rgba(255,255,255,.045); border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--sr-radius-lg); padding: var(--sr-space-12) clamp(var(--sr-space-6), 6vw, var(--sr-space-12));
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); box-shadow: var(--sr-shadow-lg);
}
.auth-logo { width: 64px; height: 64px; margin: 0 auto var(--sr-space-6); }
.auth-card .eyebrow { justify-content: center; color: var(--sr-cyan); margin-bottom: var(--sr-space-3); }
.auth-card h1 { color: #fff; font-size: 1.6rem; letter-spacing: -.5px; margin-bottom: var(--sr-space-2); }
.auth-sub { color: rgba(245,247,250,.72); font-size: .95rem; margin-bottom: var(--sr-space-8); }
.auth-card form { text-align: left; }
.auth-card .field label { color: rgba(245,247,250,.92); }
.auth-card .field input { background: rgba(3,18,40,.6); border-color: rgba(255,255,255,.16); color: #fff; }
.auth-card .field input::placeholder { color: rgba(245,247,250,.4); }
.auth-card .field input:focus { border-color: var(--sr-cyan); box-shadow: 0 0 0 3px rgba(0,229,255,.15); }
.auth-error { color: #FFB4C0; font-size: .85rem; margin: 0 0 var(--sr-space-4); min-height: 1.1em; }
.auth-foot { font-family: var(--sr-font-mono); font-size: .72rem; color: rgba(0,229,255,.75); margin-top: var(--sr-space-8); letter-spacing: .5px; }

/* ---------- 21. Movimiento reducido ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
}