/* =============================================================================
   MediNodo · Documentación técnica
   Design system — CSS moderno, sin frameworks.
   Organización:
     1. Tokens (variables) y temas
     2. Reset y base
     3. Layout (shell + sidebar + contenido + rail)
     4. Topbar, búsqueda y navegación
     5. Tipografía de contenido
     6. Componentes (cards, badge, alert, timeline, accordion, table, code…)
     7. Hero y dashboard
     8. Diagramas (Mermaid)
     9. Responsive
    10. Impresión (A4)
============================================================================= */

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/inter/inter-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/inter/inter-latin-500-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/inter/inter-latin-600-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../fonts/inter/inter-latin-700-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/ibm-plex-mono/ibm-plex-mono-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/ibm-plex-mono/ibm-plex-mono-latin-500-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/ibm-plex-mono/ibm-plex-mono-latin-600-normal.woff2") format("woff2");
}

/* 1. TOKENS ---------------------------------------------------------------- */
:root {
  color-scheme: dark;

  /* Tipografía */
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  /* Escala fluida */
  --step--1: clamp(0.78rem, 0.74rem + 0.2vw, 0.86rem);
  --step-0: clamp(0.94rem, 0.9rem + 0.2vw, 1rem);
  --step-1: clamp(1.1rem, 1rem + 0.4vw, 1.25rem);
  --step-2: clamp(1.35rem, 1.2rem + 0.8vw, 1.75rem);
  --step-3: clamp(1.8rem, 1.5rem + 1.4vw, 2.5rem);
  --step-4: clamp(2.3rem, 1.8rem + 2.6vw, 3.75rem);

  /* Espaciado */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;

  /* Radios */
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 18px;
  --radius-xl: 26px;

  /* Layout */
  --sidebar-w: 280px;
  --rail-w: 240px;
  --content-max: 860px;
  --topbar-h: 64px;

  /* Marca */
  --brand: #6366f1;
  --brand-2: #8b5cf6;
  --brand-3: #22d3ee;
  --brand-grad: linear-gradient(120deg, var(--brand) 0%, var(--brand-2) 55%, var(--brand-3) 130%);
}

/* Tema oscuro (por defecto) */
:root, [data-theme="dark"] {
  --bg: #0a0c10;
  --bg-2: #0e1117;
  --surface: rgba(22, 26, 34, 0.72);
  --surface-solid: #12161d;
  --surface-2: #171c25;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #e8ebf2;
  --text-muted: #9aa4b5;
  --text-faint: #6b7482;
  --accent: #a5b4fc;
  --accent-ink: #c7d2fe;
  --ring: rgba(139, 92, 246, 0.55);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.55);
  --glass: blur(14px) saturate(140%);
  --grid-line: rgba(255, 255, 255, 0.035);
  --ok: #34d399;
  --warn: #fbbf24;
  --danger: #f87171;
  --info: #60a5fa;
}

/* Tema claro */
[data-theme="light"] {
  color-scheme: light;
  --bg: #f7f8fb;
  --bg-2: #eef1f6;
  --surface: rgba(255, 255, 255, 0.75);
  --surface-solid: #ffffff;
  --surface-2: #f2f4f9;
  --border: rgba(15, 23, 42, 0.1);
  --border-strong: rgba(15, 23, 42, 0.16);
  --text: #131722;
  --text-muted: #56607a;
  --text-faint: #8a93a6;
  --accent: #5b53e0;
  --accent-ink: #4338ca;
  --ring: rgba(99, 102, 241, 0.4);
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.08);
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 24px 60px rgba(15, 23, 42, 0.14);
  --glass: blur(14px) saturate(160%);
  --grid-line: rgba(15, 23, 42, 0.04);
  --ok: #059669;
  --warn: #b45309;
  --danger: #dc2626;
  --info: #2563eb;
}

/* 2. RESET Y BASE ---------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--topbar-h) + 16px); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Fondo con aurora sutil + grid */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(60% 45% at 78% -8%, rgba(139, 92, 246, 0.16), transparent 60%),
    radial-gradient(50% 40% at 8% 4%, rgba(34, 211, 238, 0.1), transparent 55%),
    var(--bg);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 100% 70% at 50% 0%, #000 40%, transparent 100%);
}

a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { max-width: 100%; }
:focus-visible { outline: 2px solid var(--ring); outline-offset: 3px; border-radius: 4px; }

.skip-link {
  position: fixed;
  top: -60px;
  left: 12px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--brand);
  color: #fff;
  border-radius: var(--radius-sm);
  transition: top 0.2s;
}
.skip-link:focus { top: 12px; }

/* 3. LAYOUT ---------------------------------------------------------------- */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  min-height: 100vh;
}

.shell {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.main {
  width: 100%;
  max-width: calc(var(--content-max) + var(--rail-w) + var(--space-8));
  margin-inline: auto;
  padding: var(--space-7) var(--space-6) var(--space-8);
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--rail-w);
  gap: var(--space-7);
  align-items: start;
}
.main.no-rail { grid-template-columns: minmax(0, 1fr); max-width: calc(var(--content-max) + var(--space-6)); }
.main.main--home { grid-template-columns: minmax(0, 1fr); max-width: 1140px; gap: 0; }

.article { min-width: 0; max-width: var(--content-max); }

/* Right rail (On this page) */
.rail {
  position: sticky;
  top: calc(var(--topbar-h) + var(--space-5));
  align-self: start;
  font-size: var(--step--1);
}
.rail h4 {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
  color: var(--text-faint);
  margin-bottom: var(--space-3);
}
.rail nav { display: flex; flex-direction: column; gap: 2px; border-left: 1px solid var(--border); }
.rail a {
  color: var(--text-muted);
  padding: 4px 0 4px 14px;
  margin-left: -1px;
  border-left: 2px solid transparent;
  line-height: 1.4;
  transition: color 0.15s, border-color 0.15s;
}
.rail a:hover { color: var(--text); text-decoration: none; }
.rail a.lvl-3 { padding-left: 26px; font-size: 0.78rem; }
.rail a[aria-current="true"] { color: var(--accent-ink); border-left-color: var(--brand); font-weight: 600; }

/* 4. SIDEBAR --------------------------------------------------------------- */
.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  padding: var(--space-5) var(--space-4);
  border-right: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: var(--glass);
  -webkit-backdrop-filter: var(--glass);
  scrollbar-width: thin;
}
.sidebar::-webkit-scrollbar { width: 8px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 8px; }

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-2) var(--space-5);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.brand .logo {
  width: 34px; height: 34px;
  border-radius: 10px;
  background: var(--brand-grad);
  display: grid; place-items: center;
  color: #fff; font-family: var(--font-mono); font-weight: 700;
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255,255,255,0.25);
}
.brand small { display: block; font-weight: 500; color: var(--text-faint); font-size: 0.72rem; letter-spacing: 0; }

.nav-group { margin-bottom: var(--space-5); }
.nav-group > span {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  padding: 0 var(--space-3) var(--space-2);
}
.nav-group a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 8px var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.3;
  transition: background 0.15s, color 0.15s;
}
.nav-group a:hover { background: var(--surface-2); color: var(--text); text-decoration: none; }
.nav-group a[aria-current="page"] {
  background: color-mix(in srgb, var(--brand) 16%, transparent);
  color: var(--accent-ink);
  font-weight: 600;
}
.nav-group a .ico { width: 16px; height: 16px; opacity: 0.8; flex: none; }

/* 4b. TOPBAR --------------------------------------------------------------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: 0 var(--space-6);
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: var(--glass);
  -webkit-backdrop-filter: var(--glass);
}
.topbar .menu-btn { display: none; }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--step--1);
  color: var(--text-muted);
  min-width: 0;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb .sep { color: var(--text-faint); }
.breadcrumb .current { color: var(--text); font-weight: 600; }

.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: var(--space-2); }

.icon-btn {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.icon-btn:hover { color: var(--text); border-color: var(--border-strong); }
.icon-btn svg { width: 18px; height: 18px; }

/* Búsqueda */
.search {
  position: relative;
  flex: 0 1 320px;
  margin-left: auto;
}
.search input {
  width: 100%;
  height: 40px;
  padding: 0 38px 0 38px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  font-size: 0.9rem;
}
.search input::placeholder { color: var(--text-faint); }
.search input:focus { border-color: var(--ring); background: var(--surface-solid); }
.search .search-ico { position: absolute; left: 12px; top: 11px; width: 18px; height: 18px; color: var(--text-faint); pointer-events: none; }
.search kbd {
  position: absolute; right: 10px; top: 9px;
  font-family: var(--font-mono); font-size: 0.7rem;
  padding: 2px 6px; border-radius: 6px;
  border: 1px solid var(--border); color: var(--text-faint);
  background: var(--bg);
}
.search-results {
  position: absolute;
  top: calc(100% + 8px);
  left: 0; right: 0;
  background: var(--surface-solid);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  max-height: 60vh; overflow-y: auto;
  display: none;
}
.search-results.open { display: block; }
.search-results a {
  display: block;
  padding: 10px 14px;
  color: var(--text);
  border-bottom: 1px solid var(--border);
}
.search-results a:last-child { border-bottom: 0; }
.search-results a:hover, .search-results a.active { background: var(--surface-2); text-decoration: none; }
.search-results .r-title { font-weight: 600; font-size: 0.9rem; }
.search-results .r-sub { font-size: 0.78rem; color: var(--text-faint); }
.search-results .empty { padding: 16px; color: var(--text-faint); font-size: 0.86rem; text-align: center; }

/* 5. TIPOGRAFÍA DE CONTENIDO ---------------------------------------------- */
.article h1 {
  font-size: var(--step-3);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-3);
}
.article > p.lead {
  font-size: var(--step-1);
  color: var(--text-muted);
  margin-bottom: var(--space-6);
  max-width: 62ch;
}
.article h2 {
  font-size: var(--step-2);
  letter-spacing: -0.02em;
  margin: var(--space-8) 0 var(--space-4);
  padding-top: var(--space-2);
  scroll-margin-top: calc(var(--topbar-h) + 20px);
}
.article h2:first-of-type { margin-top: var(--space-6); }
.article h3 {
  font-size: var(--step-1);
  margin: var(--space-6) 0 var(--space-3);
  scroll-margin-top: calc(var(--topbar-h) + 20px);
}
.article h4 { font-size: 1.02rem; margin: var(--space-5) 0 var(--space-2); }
.article p { margin-bottom: var(--space-4); color: var(--text); }
.article p, .article li { max-width: 72ch; }
.article ul, .article ol { margin: 0 0 var(--space-4) 1.2rem; }
.article li { margin-bottom: var(--space-2); }
.article li::marker { color: var(--text-faint); }
.article strong { color: var(--text); font-weight: 650; }
.article hr { border: 0; border-top: 1px solid var(--border); margin: var(--space-7) 0; }

.anchor {
  opacity: 0;
  margin-left: 8px;
  color: var(--text-faint);
  font-weight: 400;
  transition: opacity 0.15s;
}
h2:hover .anchor, h3:hover .anchor { opacity: 1; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-3);
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: var(--brand-grad); }

/* 6. COMPONENTES ----------------------------------------------------------- */
/* Card */
.card {
  background: var(--surface);
  backdrop-filter: var(--glass);
  -webkit-backdrop-filter: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}
.card h3 { margin-top: 0; }
.card--link { transition: transform 0.18s, border-color 0.18s, box-shadow 0.18s; display: block; color: inherit; }
.card--link:hover { transform: translateY(-3px); border-color: var(--border-strong); box-shadow: var(--shadow); text-decoration: none; }

.grid { display: grid; gap: var(--space-4); }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid.auto { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
  color: var(--text-muted);
  white-space: nowrap;
}
.badge.b-brand { color: var(--accent-ink); border-color: color-mix(in srgb, var(--brand) 40%, transparent); background: color-mix(in srgb, var(--brand) 14%, transparent); }
.badge.b-ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, transparent); background: color-mix(in srgb, var(--ok) 12%, transparent); }
.badge.b-warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, transparent); background: color-mix(in srgb, var(--warn) 12%, transparent); }
.badge.b-danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, transparent); background: color-mix(in srgb, var(--danger) 12%, transparent); }
.badge.b-info { color: var(--info); border-color: color-mix(in srgb, var(--info) 40%, transparent); background: color-mix(in srgb, var(--info) 12%, transparent); }
.badge .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* Alert / Note / Warning / Info */
.alert {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-4);
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
  margin: var(--space-4) 0;
}
.alert .a-ico { width: 20px; height: 20px; margin-top: 2px; }
.alert p { margin: 0; }
.alert p + p { margin-top: 6px; }
.alert .a-title { font-weight: 650; margin-bottom: 2px; }
.alert.info { border-color: color-mix(in srgb, var(--info) 45%, transparent); background: color-mix(in srgb, var(--info) 9%, transparent); }
.alert.info .a-ico { color: var(--info); }
.alert.note { border-color: color-mix(in srgb, var(--brand) 45%, transparent); background: color-mix(in srgb, var(--brand) 9%, transparent); }
.alert.note .a-ico { color: var(--accent); }
.alert.warning { border-color: color-mix(in srgb, var(--warn) 45%, transparent); background: color-mix(in srgb, var(--warn) 10%, transparent); }
.alert.warning .a-ico { color: var(--warn); }
.alert.danger { border-color: color-mix(in srgb, var(--danger) 45%, transparent); background: color-mix(in srgb, var(--danger) 10%, transparent); }
.alert.danger .a-ico { color: var(--danger); }
.alert.ok { border-color: color-mix(in srgb, var(--ok) 45%, transparent); background: color-mix(in srgb, var(--ok) 10%, transparent); }
.alert.ok .a-ico { color: var(--ok); }

/* Tabla */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: var(--space-4) 0;
  background: var(--surface);
}
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
thead th {
  text-align: left;
  font-weight: 600;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 12px 16px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border-strong);
  white-space: nowrap;
}
tbody td { padding: 12px 16px; border-bottom: 1px solid var(--border); vertical-align: top; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: color-mix(in srgb, var(--surface-2) 60%, transparent); }
td code, th code { white-space: nowrap; }

/* Code inline + bloque */
code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  padding: 0.12em 0.4em;
  border-radius: 6px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--accent-ink);
}
pre.code {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  line-height: 1.6;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface-solid);
  overflow-x: auto;
  margin: var(--space-4) 0;
}
pre.code code { padding: 0; border: 0; background: none; color: var(--text); font-size: inherit; }

/* Timeline */
.timeline { position: relative; margin: var(--space-5) 0; padding-left: var(--space-6); }
.timeline::before {
  content: ""; position: absolute; left: 11px; top: 6px; bottom: 6px;
  width: 2px; background: linear-gradient(var(--brand), var(--brand-2), transparent);
}
.timeline .step { position: relative; padding-bottom: var(--space-5); }
.timeline .step:last-child { padding-bottom: 0; }
.timeline .step::before {
  content: ""; position: absolute; left: calc(-1 * var(--space-6) + 4px); top: 4px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--surface-solid); border: 2px solid var(--brand);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand) 18%, transparent);
}
.timeline .step .t-head { display: flex; align-items: center; gap: 10px; margin-bottom: 4px; }
.timeline .step .t-num { font-family: var(--font-mono); font-size: 0.74rem; color: var(--accent); }
.timeline .step h4 { margin: 0; font-size: 1rem; }
.timeline .step p { margin: 0; color: var(--text-muted); font-size: 0.92rem; }

/* Accordion */
.accordion { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin: var(--space-4) 0; background: var(--surface); }
.accordion + .accordion { margin-top: -1px; }
.accordion > button {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background: none;
  border: 0;
  color: var(--text);
  font: inherit;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}
.accordion > button:hover { background: var(--surface-2); }
.accordion > button .chev { transition: transform 0.2s; flex: none; color: var(--text-faint); }
.accordion[open] > button .chev, .accordion.open > button .chev { transform: rotate(180deg); }
.accordion .acc-body { padding: 0 var(--space-5); max-height: 0; overflow: hidden; transition: max-height 0.28s ease, padding 0.28s ease; }
.accordion.open .acc-body { padding: 0 var(--space-5) var(--space-5); max-height: 1200px; }
.accordion .acc-body > *:first-child { margin-top: 0; }

/* Stat / KPI */
.stat { display: flex; flex-direction: column; gap: 2px; }
.stat .n { font-size: var(--step-2); font-weight: 700; letter-spacing: -0.02em; font-family: var(--font-mono); }
.stat .l { font-size: 0.82rem; color: var(--text-muted); }

/* Definición de servicio */
.spec { display: grid; grid-template-columns: 150px 1fr; gap: 2px var(--space-4); margin: var(--space-3) 0; font-size: 0.92rem; }
.spec dt { color: var(--text-faint); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; padding-top: 3px; }
.spec dd { margin: 0 0 var(--space-2); }

/* Pill list */
.pills { display: flex; flex-wrap: wrap; gap: 8px; margin: var(--space-3) 0; }

/* 7. HERO + DASHBOARD ------------------------------------------------------ */
.hero {
  position: relative;
  padding: var(--space-8) 0 var(--space-7);
  text-align: center;
}
.hero .eyebrow { justify-content: center; }
.hero h1 {
  font-size: var(--step-4);
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin: 0 auto var(--space-4);
  max-width: 16ch;
}
.hero h1 .grad {
  background: var(--brand-grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.hero .sub { font-size: var(--step-1); color: var(--text-muted); max-width: 60ch; margin: 0 auto var(--space-6); }
.hero .cta-row { display: flex; gap: var(--space-3); justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s, border-color 0.15s;
}
.btn.primary { background: var(--brand-grad); color: #fff; box-shadow: var(--shadow); }
.btn.primary:hover { transform: translateY(-2px); text-decoration: none; box-shadow: var(--shadow-lg); }
.btn.ghost { background: var(--surface-2); border-color: var(--border-strong); color: var(--text); }
.btn.ghost:hover { border-color: var(--accent); color: var(--accent-ink); text-decoration: none; }

.exec-summary {
  margin: var(--space-7) auto 0;
  max-width: 760px;
  padding: var(--space-5) var(--space-6);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  backdrop-filter: var(--glass);
  text-align: left;
}

.dash-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: var(--space-4); }
.dash-card { position: relative; overflow: hidden; }
.dash-card .k { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-3); }
.dash-card .k .ico-box {
  width: 40px; height: 40px; border-radius: 11px;
  display: grid; place-items: center;
  background: color-mix(in srgb, var(--brand) 14%, transparent);
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--brand) 26%, transparent);
}
.dash-card .n { font-size: 2rem; font-weight: 700; font-family: var(--font-mono); letter-spacing: -0.03em; }
.dash-card h3 { font-size: 1rem; margin: 0 0 4px; }
.dash-card p { font-size: 0.86rem; color: var(--text-muted); margin: 0; }
.dash-card .arrow { position: absolute; right: 18px; bottom: 16px; opacity: 0; transform: translateX(-6px); transition: 0.18s; color: var(--accent); }
.card--link:hover .arrow { opacity: 1; transform: translateX(0); }

/* Section wrapper on home */
.section { padding: var(--space-7) 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto var(--space-6); }
.section-head h2 { margin: 0 0 var(--space-2); }
.section-head p { color: var(--text-muted); margin: 0; }

/* 8. DIAGRAMAS ESTÁTICOS --------------------------------------------------- */
.diagram {
  margin: var(--space-5) 0;
  padding: var(--space-5);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 120% at 100% 0%, color-mix(in srgb, var(--brand) 6%, transparent), transparent 60%),
    var(--surface);
  backdrop-filter: var(--glass);
  overflow-x: auto;
}
.diagram figcaption {
  margin-top: var(--space-3);
  font-size: 0.8rem;
  color: var(--text-faint);
  text-align: center;
  font-family: var(--font-mono);
}
.hero .diagram--journey {
  margin-top: var(--space-7);
  padding-block: var(--space-6);
}
.diagram--process { padding-block: var(--space-6); }
.diagram-art { display: flex; justify-content: center; min-height: 40px; text-align: center; }
.diagram-svg { max-width: 100%; height: auto; }
[data-theme="dark"] .diagram-svg--light,
[data-theme="light"] .diagram-svg--dark { display: none; }

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: var(--space-6);
  margin-top: var(--space-8);
  color: var(--text-faint);
  font-size: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: space-between;
  align-items: center;
}
.footer nav { display: flex; gap: var(--space-4); flex-wrap: wrap; }

/* Page nav (prev/next) */
.page-nav { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); margin-top: var(--space-8); }
.page-nav a {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-4);
  color: var(--text);
  transition: border-color 0.15s, background 0.15s;
}
.page-nav a:hover { border-color: var(--border-strong); background: var(--surface-2); text-decoration: none; }
.page-nav a span { display: block; font-size: 0.75rem; color: var(--text-faint); margin-bottom: 3px; }
.page-nav a.next { text-align: right; }

/* Utilidades */
.mt-0 { margin-top: 0; }
.center { text-align: center; }
.muted { color: var(--text-muted); }
.mono { font-family: var(--font-mono); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* Backdrop móvil */
.backdrop { display: none; }

/* 9. RESPONSIVE ------------------------------------------------------------ */
@media (max-width: 1200px) {
  .main { grid-template-columns: minmax(0, 1fr); }
  .rail { display: none; }
}
@media (max-width: 900px) {
  :root { --sidebar-w: 0px; }
  .app { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed; top: 0; left: 0; z-index: 120;
    width: 280px; height: 100vh;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    box-shadow: var(--shadow-lg);
  }
  body.nav-open .sidebar { transform: translateX(0); }
  body.nav-open .backdrop { display: block; position: fixed; inset: 0; z-index: 110; background: rgba(0,0,0,0.5); }
  .topbar .menu-btn { display: grid; }
  .search { flex-basis: 200px; }
  .search kbd { display: none; }
  .grid.cols-2, .grid.cols-3, .grid.cols-4 { grid-template-columns: 1fr; }
  .page-nav { grid-template-columns: 1fr; }
  .main { padding: var(--space-5) var(--space-4) var(--space-7); }
  .spec { grid-template-columns: 1fr; gap: 0; }
  .spec dt { padding-top: var(--space-2); }
}
@media (max-width: 560px) {
  .breadcrumb .crumb-hide { display: none; }
  .hero { padding-top: var(--space-6); }
}

/* 10. IMPRESIÓN (A4) ------------------------------------------------------- */
@media print {
  :root { --topbar-h: 0px; }
  body { background: #fff; color: #000; }
  body::before, body::after { display: none; }
  .sidebar, .topbar, .rail, .backdrop, .page-nav, .footer nav, .skip-link, .search { display: none !important; }
  .app { display: block; }
  .main { display: block; max-width: 100%; padding: 0; }
  .article { max-width: 100%; }
  .card, .alert, .diagram, .table-wrap, .accordion { break-inside: avoid; box-shadow: none; background: #fff; border-color: #ccc; }
  .diagram-svg--dark { display: none; }
  .diagram-svg--light { display: block; }
  .accordion .acc-body { max-height: none !important; padding: 0 var(--space-5) var(--space-5) !important; }
  a { color: #000; text-decoration: underline; }
  h1, h2, h3 { break-after: avoid; }
  @page { size: A4; margin: 18mm 16mm; }
}