:root{color-scheme:light;
  --bg:#f5f3ee; --surface:#ffffff; --ink:#1c2330; --muted:#5d6675; --line:#dcd8cd;
  --accent:#1f4e8c; --accent-ink:#ffffff; --accent-soft:#e3ebf6; --warm:#a8501f;
  --ok:#2f7d4f; --radius:10px; --shadow:0 1px 2px rgba(20,25,35,.06),0 4px 14px rgba(20,25,35,.05);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.5 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
[hidden]{display:none!important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:var(--accent-ink);padding:8px 12px;z-index:50}
.skip:focus{left:8px;top:8px}
a{color:var(--accent)}
button{font:inherit;color:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.muted{color:var(--muted)}
.only-mobile{display:none}
select,input[type=search]{width:100%;min-width:0;padding:8px 10px;border:1px solid var(--line);border-radius:8px;
  background:var(--surface);color:var(--ink);font:inherit;font-size:.92rem}
select:hover,input[type=search]:hover{border-color:#b9b4a6}
option[disabled]{color:#aaa}
.btn{border:1px solid var(--line);background:var(--surface);padding:7px 12px;border-radius:var(--radius)}
.btn:hover{border-color:var(--accent)}
.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-weight:600}
.btn.primary:hover{filter:brightness(1.08)}
.btn.ghost{background:none}
.btn[disabled]{opacity:.5;cursor:default}
.btn.big{padding:11px 22px;font-size:1rem}
.link{background:none;border:0;padding:0;color:var(--accent);text-decoration:underline;font-size:.88rem}
.chk{display:inline-flex;gap:8px;align-items:center;cursor:pointer;font-size:.92rem}
.f{display:flex;flex-direction:column;gap:4px;font-size:.78rem;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.03em;min-width:0}
.f select,.f input{text-transform:none;letter-spacing:0;font-weight:400;color:var(--ink)}

/* Asignaturas */
.asig{display:flex;justify-content:center;gap:4px;padding:10px 12px;background:var(--surface);border-bottom:1px solid var(--line)}
.asig button{border:1px solid transparent;background:none;padding:6px 16px;border-radius:99px;color:var(--muted);font-size:.95rem}
.asig button:hover{color:var(--ink)}
.asig button[aria-pressed="true"]{background:var(--accent);color:var(--accent-ink);font-weight:600}
.obra p{margin:0 0 12px}

/* Portada */
.home{min-height:calc(100vh - 190px);display:flex;align-items:center;justify-content:center;padding:32px 16px}
.home-in{width:100%;max-width:760px}
.home h1{margin:0 0 6px;font-size:2rem;letter-spacing:-.02em}
.home h1 span{color:var(--muted);font-weight:500}
.lead{margin:0 0 22px;color:var(--muted);max-width:60ch}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:22px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 16px}
.grid .wide{grid-column:1 / -1}
.home-act{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:18px}
.home-act .sp{flex:1}
.home-n{color:var(--muted);font-size:.85rem;margin:14px 2px 0}

/* Cabecera de resultados */
.top{position:sticky;top:0;z-index:20;background:var(--bg);border-bottom:1px solid var(--line)}
.top-in{max-width:1180px;margin:0 auto;padding:10px 16px 0;display:flex;gap:14px;align-items:center}
.brand{font-weight:700;font-size:1.15rem;text-decoration:none;color:var(--ink);white-space:nowrap;margin-right:auto}
.brand span{color:var(--muted);font-weight:500}
.tabs{display:flex;gap:4px}
.tabs button{border:1px solid transparent;background:none;padding:6px 12px;border-radius:var(--radius);color:var(--muted);font-size:.92rem}
.tabs button[aria-pressed="true"]{background:var(--accent-soft);color:var(--accent);border-color:var(--line);font-weight:600}
.barra{max-width:1180px;margin:0 auto;padding:10px 16px 12px;display:grid;
  grid-template-columns:1fr 1.7fr 1.3fr 1fr .72fr .72fr 1.4fr 1fr;gap:8px}
.barra .f{font-size:.7rem}
.barra select,.barra input{padding:6px 8px;font-size:.86rem}
#n-act:not(:empty){display:inline-block;min-width:1.4em;padding:0 6px;border-radius:99px;background:var(--accent);color:var(--accent-ink);font-size:.75rem;text-align:center}

/* Resultados */
.wrap{max-width:1180px;margin:0 auto;padding:14px 16px}
.estado{display:flex;align-items:center;gap:10px 14px;flex-wrap:wrap;margin-bottom:14px}
#resumen{margin:0;font-weight:700}
.activos{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.chip{border:1px solid var(--accent);background:var(--accent-soft);color:var(--accent);border-radius:99px;padding:3px 10px;font-size:.84rem;font-weight:600}
.chip span{margin-left:2px;font-weight:400}
.chip:hover{background:#d4e1f1}
.opts{display:flex;gap:14px;margin-left:auto;flex-wrap:wrap}
.opts .chk{font-size:.86rem;color:var(--muted)}
#lista{display:flex;flex-direction:column;gap:16px;outline:0;align-items:center}
.card{width:100%;max-width:860px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.card.done{opacity:.6}
.c-head{display:flex;gap:10px;align-items:baseline;flex-wrap:wrap;padding:10px 14px 8px;border-bottom:1px solid var(--line)}
.c-head b{font-size:1rem}
.c-head .ref{color:var(--muted);font-size:.85rem}
.badges{display:flex;gap:6px;flex-wrap:wrap;margin-left:auto}
.badge{font-size:.74rem;padding:2px 8px;border-radius:99px;background:var(--accent-soft);color:var(--accent);white-space:nowrap}
.badge.warm{background:transparent;border:1px solid var(--warm);color:var(--warm)}
.paper,.sol{background:#fff;padding:10px 12px}
.sol{border-top:1px dashed #b8b8b8}
.paper img,.sol img{display:block;max-width:100%;width:auto;height:auto}
.c-act{display:flex;gap:8px;flex-wrap:wrap;padding:8px 12px;border-top:1px solid var(--line)}
.c-act button{border:1px solid var(--line);background:none;border-radius:8px;padding:5px 10px;font-size:.88rem}
.c-act button[aria-pressed="true"]{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}
.c-act button.hecho[aria-pressed="true"]{background:var(--ok);border-color:var(--ok);color:#fff}
.c-act .nosol{color:var(--muted);font-size:.84rem;align-self:center}
.vacio{padding:40px 10px;color:var(--muted)}

/* Estadísticas */
h2{font-size:1.1rem;margin:22px 0 4px}
.scroll{overflow:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);margin-top:8px}
table.heat{border-collapse:collapse;font-size:.82rem;min-width:100%}
.heat th,.heat td{padding:4px 7px;text-align:center;border-bottom:1px solid var(--line)}
.heat th:first-child,.heat td:first-child{text-align:left;position:sticky;left:0;background:var(--surface);white-space:nowrap}
.heat thead th{position:sticky;top:0;background:var(--surface);font-weight:600}
.heat td.c{background:color-mix(in srgb,var(--accent) calc(var(--v) * 85%),transparent)}
.heat td.c.hi{color:var(--accent-ink)}
.heat td.t,.heat th.t{font-weight:700}

.pie{max-width:1180px;margin:20px auto 40px;padding:0 16px;color:var(--muted);font-size:.84rem}
.en-home .pie{max-width:792px;text-align:left;margin:0 auto 32px}

/* Pantallas medianas */
@media (max-width:1100px){
  .barra{grid-template-columns:repeat(4,minmax(0,1fr))}
}
/* Móvil */
@media (max-width:760px){
  .only-mobile{display:inline-flex;align-items:center;gap:6px;white-space:nowrap;padding:5px 10px}
  .home{align-items:flex-start;padding:22px 12px}
  .home h1{font-size:1.5rem}
  .panel{padding:16px}
  .grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px 10px}
  .grid .f:nth-child(-n+4){grid-column:1 / -1}
  .home-act .sp{display:none}
  .home-act .btn.big{width:100%;order:-1}
  .top-in{padding:8px 10px;gap:6px}
  .brand{font-size:.92rem}
  .brand span{display:none}
  .tabs button{padding:4px 6px;font-size:.8rem}
  .tabs{gap:2px}
  .top-in .only-mobile{padding:4px 8px;font-size:.85rem}
  .barra{display:none;grid-template-columns:minmax(0,1fr) minmax(0,1fr);padding:4px 12px 12px}
  .barra.open{display:grid}
  .barra .tb,.barra .kw{grid-column:1 / -1}
  .wrap{padding:10px 10px}
  .opts{margin-left:0}
  .card{border-radius:8px}
  .c-head{padding:8px 10px 6px}
  .badges{margin-left:0}
  .paper,.sol{padding:6px 6px}
  .c-act{padding:8px 10px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}