/* =====================================================================
   ODA · Movilidad docente — sistema visual compartido (solo claro)
   Institucional/editorial: papel, tinta, azul marino y un ocre de acento.
   Líneas finas en vez de sombras; serif para títulos, Plex para interfaz.
   Las variables con nombres antiguos (--bg, --surface, --accent…) se
   mantienen como alias para que el CSS propio de cada página siga sirviendo.
   ===================================================================== */
:root{
  color-scheme:light;
  --paper:#f6f4ef; --surface:#ffffff; --surface-2:#f1eee7; --ink:#1c1b19; --ink-2:#47443d; --muted:#6f6a60; --faint:#9a9488;
  --rule:#e2ddd2; --rule-strong:#cbc4b5;
  --navy:#14294a; --navy-2:#24467a; --navy-soft:#e9eef6; --ochre:#9c6b14; --ochre-soft:#f5ead3;
  --ok:#2d6a3e; --ok-soft:#e5efe6; --warn:#835400; --warn-soft:#f8edd5; --err:#9f2a1f; --err-soft:#f7e3df; --focus:#2b5cb0;
  --side-w:252px;
  --serif:"Newsreader",Georgia,"Times New Roman",serif;
  --sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Consolas,monospace;
  /* alias usados por el CSS de cada página */
  --bg:var(--paper); --border:var(--rule); --text:var(--ink); --accent:var(--navy); --accent-soft:var(--navy-soft);
  --radius:4px; --shadow:none; --grid:#ebe7de; --axis:#cbc4b5;
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--paper);color:var(--ink);font:15px/1.55 var(--sans);-webkit-font-smoothing:antialiased}
a{color:var(--navy-2)}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px}

/* ---------- armazón: barra lateral + contenido a todo el ancho ---------- */
.shell{display:grid;grid-template-columns:var(--side-w) minmax(0,1fr);min-height:100vh}
.side{position:sticky;top:0;height:100vh;background:var(--navy);color:#d9e1ee;display:flex;flex-direction:column;padding:22px 0 18px;overflow:auto}
.brand{display:block;padding:0 22px 22px;text-decoration:none;color:#fff;border-bottom:1px solid rgba(255,255,255,.12)}
.brand .k{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:#e6c27a;display:block;margin-bottom:4px}
.brand .t{font-family:var(--serif);font-size:23px;line-height:1.15;font-weight:500;display:block}
.side-nav{padding:14px 0;flex:1}
.side-h{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:#8fa1bd;margin:16px 22px 6px}
.side-nav a{display:block;padding:8px 22px 8px 19px;color:#d9e1ee;text-decoration:none;font-size:14.5px;border-left:3px solid transparent}
.side-nav a:hover{background:rgba(255,255,255,.06);color:#fff}
.side-nav a[aria-current=page]{border-left-color:#e6c27a;background:rgba(255,255,255,.08);color:#fff;font-weight:500}
.side-foot{margin:0 22px;padding-top:14px;border-top:1px solid rgba(255,255,255,.12);font-size:12.5px;color:#a9b7cc;line-height:1.5}
.side-foot b{color:#fff;font-weight:500;font-family:var(--mono);font-size:12px}
.side-foot .demo-tag{display:inline-block;margin-top:8px;font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;color:#e6c27a;border:1px solid rgba(230,194,122,.45);padding:2px 6px}
.main{min-width:0;padding:30px 40px 56px}

/* ---------- encabezado de página ---------- */
.eyebrow{font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--ochre);margin:0 0 8px}
.page-h{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;padding-bottom:18px;border-bottom:1px solid var(--rule);margin-bottom:22px}
.page-h h1{font-family:var(--serif);font-weight:500;font-size:34px;line-height:1.1;letter-spacing:-.01em;margin:0 0 8px}
.page-h p{margin:0;color:var(--ink-2);max-width:72ch}

/* ---------- pestañas ---------- */
.tabs{display:flex;gap:28px;border-bottom:1px solid var(--rule);margin:-8px 0 24px}
.tabs button{appearance:none;background:none;border:0;border-bottom:2px solid transparent;margin-bottom:-1px;padding:10px 0;font:500 14.5px var(--sans);color:var(--muted);cursor:pointer}
.tabs button[aria-selected=true]{color:var(--ink);border-bottom-color:var(--navy)}
.tabs button:hover{color:var(--ink)}

/* ---------- paneles y numeración editorial ---------- */
.panel{background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius);padding:22px 24px}
.sec-h{display:flex;align-items:baseline;gap:12px;margin:0 0 4px}
.sec-h .num{font-family:var(--serif);font-size:22px;color:var(--ochre);font-variant-numeric:lining-nums;line-height:1}
.sec-h h2{font-family:var(--serif);font-weight:500;font-size:21px;margin:0;line-height:1.2}

/* ---------- controles ---------- */
input[type=text],input[type=date],input[type=number],input[type=search],input[type=email],input[type=password],select,textarea{
  font:inherit;font-size:14.5px;color:var(--ink);background:#fff;border:1px solid var(--rule-strong);border-radius:3px;padding:8px 11px;min-height:40px;width:100%}
input[type=radio],input[type=checkbox]{accent-color:var(--navy)}
input:focus,select:focus,textarea:focus{border-color:var(--navy-2);outline:2px solid rgba(43,92,176,.18);outline-offset:0}
button{font:500 14px var(--sans);cursor:pointer;border-radius:3px;border:1px solid var(--rule-strong);background:#fff;color:var(--ink);padding:8px 16px;min-height:40px}
button:hover{border-color:var(--ink-2)}
button.primary{background:var(--navy);border-color:var(--navy);color:#fff}
button.primary:hover{background:var(--navy-2);border-color:var(--navy-2)}
button:disabled{opacity:.5;cursor:not-allowed}

/* ---------- responsive: la barra lateral pasa arriba ---------- */
@media (max-width:900px){
  .shell{grid-template-columns:minmax(0,1fr)}
  .side{position:static;height:auto;flex-direction:row;align-items:center;flex-wrap:wrap;padding:12px 16px;gap:8px 16px}
  .brand{padding:0;border:0}
  .brand .t{font-size:18px}
  .side-nav{display:flex;flex-wrap:wrap;gap:2px;padding:0;flex:1 1 100%}
  .side-h,.side-foot{display:none}
  .side-nav a{padding:6px 10px;border-left:0;border-bottom:2px solid transparent;font-size:13.5px}
  .side-nav a[aria-current=page]{border-bottom-color:#e6c27a;background:none}
  .main{padding:20px 16px 40px}
  .page-h h1{font-size:27px}
}