/* ------------------------------------------------------------------
   WEB (portada i llistats). Les fitxes tenen el seu propi sistema (src/sistema/vN).
   Estil: net i càlid, color com a accent (no com a decorat), pensat per a
   docents però amable per a l'alumnat: formes arrodonides, jerarquia clara.
   ------------------------------------------------------------------ */
:root {
  --bg: #faf8f4;
  --card: #fff;
  --ink: #1f2a44;
  --ink-2: #5f677b;
  --line: #e4dfd4;
  --brand: #1f3a5f;
  --brand-2: #f26b3a;
  --sun: #ffd166;
  --shadow: 0 1px 2px rgba(31, 42, 68, .06), 0 6px 18px rgba(31, 42, 68, .07);
  --shadow-up: 0 2px 4px rgba(31, 42, 68, .08), 0 14px 30px rgba(31, 42, 68, .13);
  --titols: "Fredoka", "Andika", system-ui, sans-serif;
  --tipus-text: "Andika", "Atkinson Hyperlegible", "Segoe UI", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 4.5rem; }
body.web { margin: 0; font-family: var(--tipus-text); background: var(--bg); color: var(--ink); line-height: 1.55; }
.web h1, .web h2, .web h3, .logo { font-family: var(--titols); }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.web a:focus-visible, .web button:focus-visible, .web input:focus-visible { outline: 3px solid var(--brand-2); outline-offset: 2px; }

/* ---------- capçalera ---------- */
.web-cap { position: sticky; top: 0; z-index: 30; background: rgba(250, 248, 244, .94); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.web-cap-in { max-width: 72rem; margin: 0 auto; padding: .65rem 1.2rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.logo { font-size: 1.55rem; font-weight: 700; color: var(--brand); text-decoration: none; letter-spacing: -.01em; }
.logo span { color: var(--brand-2); }
.web-nav { display: flex; gap: .2rem; flex-wrap: wrap; }
.web-nav a { text-decoration: none; color: var(--ink); font-weight: 700; font-size: .92rem; padding: .4rem .85rem; border-radius: 999px; transition: background .12s; }
.web-nav a:hover { background: #fff; box-shadow: var(--shadow); }

/* ---------- hero ---------- */
.hero {
  position: relative; z-index: 5; padding: 3.8rem 1.2rem 3.2rem; /* per sobre del contingut: el desplegable de la cerca hi surt */
  background:
    radial-gradient(circle at 10% 15%, rgba(255, 209, 102, .45), transparent 42%),
    radial-gradient(circle at 92% 20%, rgba(90, 169, 255, .25), transparent 40%),
    radial-gradient(circle at 75% 100%, rgba(61, 219, 176, .22), transparent 42%),
    var(--bg);
}
.hero-in { max-width: 48rem; margin: 0 auto; text-align: center; }
.hero-sup { display: inline-block; margin: 0 0 .9rem; padding: .25rem .85rem; background: #fff; border: 1px solid var(--line); border-radius: 999px; font-weight: 700; font-size: .85rem; color: var(--brand); }
.hero h1 { margin: 0; font-size: clamp(2.2rem, 6vw, 3.7rem); line-height: 1.08; color: var(--brand); letter-spacing: -.02em; }
.hero h1 em { font-style: normal; position: relative; white-space: nowrap; z-index: 0; }
.hero h1 em::after { content: ""; position: absolute; left: -.08em; right: -.08em; bottom: .04em; height: .32em; background: var(--sun); border-radius: 4px; z-index: -1; }
.hero-text { color: var(--ink-2); font-size: 1.1rem; margin: 1rem auto 1.7rem; max-width: 38rem; }
.hero-punts { list-style: none; margin: 1.4rem 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; justify-content: center; color: var(--ink-2); font-size: .9rem; font-weight: 700; }
.hero-punts li::before { content: "✓ "; color: #2b8a3e; }

.cerca { position: relative; max-width: 34rem; margin: 0 auto; }
.cerca svg { position: absolute; left: 1.1rem; top: 1.7rem; width: 1.3rem; height: 1.3rem; transform: translateY(-50%); fill: none; stroke: var(--ink-2); stroke-width: 2.2; stroke-linecap: round; pointer-events: none; z-index: 1; }
.cerca input { width: 100%; font: inherit; font-size: 1.05rem; padding: 1rem 1.2rem 1rem 3.1rem; border: 2px solid transparent; border-radius: 999px; background: #fff; box-shadow: var(--shadow-up); color: var(--ink); }
.cerca input:focus { outline: none; border-color: var(--brand-2); }

/* resultats ràpids: 3 files visibles, la resta amb desplaçament */
.cerca-res { position: absolute; z-index: 40; left: 0; right: 0; top: calc(100% + .5rem); margin: 0; padding: .35rem; list-style: none; text-align: left; background: #fff; border-radius: 18px; box-shadow: var(--shadow-up); border: 1px solid var(--line); max-height: calc(3 * 3.6rem + .7rem); overflow-y: auto; overscroll-behavior: contain; scrollbar-width: thin; }
.cerca-res[hidden] { display: none; }
.cerca-res li { margin: 0; }
.cerca-res a { display: flex; align-items: center; gap: .75rem; height: 3.6rem; padding: 0 .7rem; border-radius: 12px; text-decoration: none; color: var(--ink); }
.cerca-res a:hover, .cerca-res a.sel { background: var(--acento-suau, #f3f0e6); }
.cerca-res .r-ico { flex: none; display: grid; place-items: center; width: 2.2rem; height: 2.2rem; border-radius: 10px; background: var(--acento-suau); color: var(--acento); }
.cerca-res .r-ico .svg-ico { width: 1.2rem; height: 1.2rem; }
.cerca-res .r-tit { display: block; font-weight: 700; line-height: 1.2; }
.cerca-res .r-sub { display: block; font-size: .78rem; color: var(--ink-2); }
.cerca-res .r-cap { padding: .9rem; text-align: center; color: var(--ink-2); }

/* llistat (assignatura / curs) */
.hero-llistat { --acento: var(--brand); padding: 2rem 1.2rem 2.4rem; background: linear-gradient(180deg, var(--acento-suau, #eef2f7), var(--bg)); }
.hero-llistat .hero-in { text-align: left; max-width: 72rem; }
.hero-llistat .cerca { margin: 0; }
.hero-llistat h1 { color: var(--acento); font-size: clamp(1.9rem, 4vw, 2.8rem); display: flex; align-items: center; gap: .6rem; }
.hero-llistat .hero-text { margin: .5rem 0 1.2rem; max-width: 40rem; }
.hero-ico { display: inline-grid; place-items: center; width: 1.5em; height: 1.5em; border-radius: 14px; background: var(--acento); color: #fff; }
.hero-ico .svg-ico { width: .85em; height: .85em; }
.molla { font-size: .9rem; color: var(--ink-2); margin-bottom: .6rem; }
.molla a { color: var(--ink-2); }

/* ---------- contingut ---------- */
.contingut { max-width: 72rem; margin: 0 auto; padding: 0 1.2rem 4rem; }
.seccio { margin-top: 2.8rem; }
.seccio h2 { margin: 0 0 1rem; font-size: 1.6rem; color: var(--brand); display: flex; align-items: baseline; gap: .6rem; }
.seccio h2 small { font-family: var(--tipus-text); font-size: .8rem; background: #eee9dd; color: var(--ink-2); padding: .1rem .6rem; border-radius: 999px; }

/* cursos */
.cursos { display: grid; grid-template-columns: repeat(auto-fit, minmax(8.5rem, 1fr)); gap: .9rem; }
.curs { --c: #1971c2; display: flex; flex-direction: column; align-items: center; gap: .1rem; padding: 1.2rem .6rem; text-decoration: none; color: #fff; background: var(--c); border-radius: 18px; box-shadow: var(--shadow); transition: transform .15s, box-shadow .15s; position: relative; overflow: hidden; }
.curs::after { content: ""; position: absolute; width: 6.5rem; height: 6.5rem; border-radius: 50%; background: rgba(255,255,255,.14); right: -2rem; top: -2.5rem; }
.curs:hover { transform: translateY(-3px); box-shadow: var(--shadow-up); }
.curs-num { font-family: var(--titols); font-size: 2.6rem; font-weight: 700; line-height: 1; }
.curs-info { font-size: .85rem; font-weight: 700; opacity: .92; }
.c1 { --c: #e8590c; } .c2 { --c: #c2255c; } .c3 { --c: #6741d9; } .c4 { --c: #1971c2; } .c5 { --c: #0b7285; } .c6 { --c: #2b8a3e; } .c7 { --c: #e67700; } .c8 { --c: #099268; }

/* assignatures */
.assigs { display: grid; grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr)); gap: .9rem; }
.assig-carta { display: grid; grid-template-columns: auto 1fr; grid-template-rows: auto auto; column-gap: .9rem; align-items: center; padding: 1rem; background: var(--card); border: 1px solid var(--line); border-radius: 16px; text-decoration: none; color: var(--ink); box-shadow: var(--shadow); transition: transform .15s, border-color .15s, box-shadow .15s; }
.assig-carta:hover { transform: translateY(-3px); border-color: var(--acento); box-shadow: var(--shadow-up); }
.assig-ico { grid-row: 1 / 3; display: grid; place-items: center; width: 3.3rem; height: 3.3rem; border-radius: 14px; background: var(--acento-suau); color: var(--acento); }
.assig-ico .svg-ico { width: 1.7rem; height: 1.7rem; }
.assig-nom { font-family: var(--titols); font-weight: 600; font-size: 1.1rem; line-height: 1.2; align-self: end; }
.assig-n { font-size: .85rem; color: var(--ink-2); align-self: start; }

/* filtres */
.filtres { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: .9rem 1rem; box-shadow: var(--shadow); display: grid; gap: .6rem; }
.filtre-fila { display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; }
.filtre-tit { width: 6.5rem; font-size: .78rem; font-weight: 700; color: var(--ink-2); text-transform: uppercase; letter-spacing: .05em; }
.xip { --acento: var(--brand); font: inherit; font-size: .9rem; font-weight: 700; cursor: pointer; padding: .32rem .85rem; border-radius: 999px; border: 1.5px solid var(--line); background: #fff; color: var(--ink); transition: background .12s, color .12s, border-color .12s; }
.xip:hover { border-color: var(--acento); }
.xip[aria-pressed="true"] { background: var(--acento); border-color: var(--acento); color: #fff; }
.recompte { color: var(--ink-2); font-size: .9rem; margin: 1rem 0 .6rem; min-height: 1.4em; }
.buit, .buit-fix { text-align: center; padding: 2rem; color: var(--ink-2); background: var(--card); border-radius: 16px; border: 2px dashed var(--line); }
.buit[hidden] { display: none; }

/* cartes de fitxa */
.cartes { display: grid; grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr)); gap: 1rem; }
.carta { --acento: var(--brand); --acento-suau: #eef2f7; display: flex; flex-direction: column; gap: .7rem; padding: 1.1rem; background: var(--card); border: 1px solid var(--line); border-radius: 16px; text-decoration: none; color: inherit; box-shadow: var(--shadow); border-top: 5px solid var(--acento); position: relative; transition: transform .15s, box-shadow .15s; }
.carta:hover { transform: translateY(-3px); box-shadow: var(--shadow-up); }
.carta-ico { position: absolute; top: .9rem; right: .9rem; display: grid; place-items: center; width: 2.4rem; height: 2.4rem; border-radius: 12px; background: var(--acento-suau); color: var(--acento); }
.carta-ico .svg-ico { width: 1.3rem; height: 1.3rem; }
.carta-etiq { display: flex; flex-wrap: wrap; gap: .3rem; padding-right: 3rem; font-size: .75rem; }
.carta-etiq b { color: var(--acento); background: var(--acento-suau); padding: .1rem .55rem; border-radius: 999px; }
.carta-etiq i { font-style: normal; font-weight: 700; background: #f0ece2; color: var(--ink-2); padding: .1rem .55rem; border-radius: 999px; }
.carta h3 { margin: .5rem 0 .2rem; font-size: 1.2rem; line-height: 1.25; }
.carta p { margin: 0; color: var(--ink-2); font-size: .9rem; }
.carta-cos { display: block; flex: 1; }
.carta-peu { display: flex; justify-content: space-between; align-items: center; font-size: .8rem; font-weight: 700; color: var(--ink-2); border-top: 1px solid var(--line); padding-top: .6rem; }
.carta-fletxa { color: var(--acento); font-size: 1.2rem; transition: transform .15s; }
.carta:hover .carta-fletxa { transform: translateX(4px); }
.carta[hidden], .grup[hidden] { display: none; }

.xips-enllac { display: flex; flex-wrap: wrap; gap: .5rem; }
.xips-enllac a { --acento: var(--brand); text-decoration: none; font-weight: 700; padding: .42rem 1rem; border-radius: 999px; background: #fff; border: 1.5px solid var(--line); color: var(--ink); transition: border-color .12s, color .12s; }
.xips-enllac a:hover { border-color: var(--acento); color: var(--acento); }

/* ---------- peu ---------- */
.web-peu { background: var(--brand); color: #dfe6f1; padding: 2.5rem 1.2rem; }
.web-peu-in { max-width: 72rem; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; }
.web-peu p { margin: .5rem 0 0; font-size: .9rem; max-width: 24rem; }
.web-peu h4 { margin: 0 0 .5rem; color: #fff; font-family: var(--titols); }
.web-peu ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .25rem; font-size: .9rem; }
.web-peu a { color: #dfe6f1; text-decoration: none; }
.web-peu a:hover { color: #fff; text-decoration: underline; }
.logo-peu { color: #fff; }

@media (max-width: 640px) {
  .web-nav a:nth-child(3) { display: none; }
  .web-peu-in { grid-template-columns: 1fr; gap: 1.2rem; }
  .filtre-tit { width: 100%; }
  .hero { padding-top: 2.4rem; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } html { scroll-behavior: auto; } }

/* ---------- categories (hubs) ---------- */
.subtit { margin: 1.4rem 0 .6rem; font-size: 1.05rem; color: var(--ink-2); }
.xips-enllac small { font-weight: 700; color: var(--ink-2); margin-left: .25rem; }
.llista-cat { list-style: none; margin: 0; padding: 0; display: grid; gap: .55rem; }
.llista-cat li a { font-weight: 700; color: var(--brand); text-decoration: none; }
.llista-cat li a:hover { text-decoration: underline; }
.llista-cat li small { color: var(--ink-2); font-weight: 700; margin-left: .3rem; }
.llista-cat li p { margin: .1rem 0 0; color: var(--ink-2); font-size: .92rem; }
.grup h2 a, .seccio h2 a { color: inherit; text-decoration: none; }