:root{
  --bg:#F5F6F9;--paper:#fff;--ink:#1B2230;--ink2:#3B4354;--muted:#5F6879;
  --line:#DCE0E7;--hair:#E9ECF1;--soft:#F1F3F6;--focus:#2B6CB0;--c:#9C5B18;
  --c-ink:color-mix(in srgb,var(--c) 84%,#000);
  --c-soft:color-mix(in srgb,var(--c) 6%,#fff);
  --serif:Literata,Georgia,"Times New Roman",serif;
  --sans:Roboto,system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.2;margin:0}
a{color:inherit}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:4px}
img{max-width:100%;height:auto}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px 64px}
.todo,.loading{color:var(--muted);font-style:italic}
.loading{padding:48px 24px;text-align:center}

/* Capçalera del tema */
.hero{background:var(--c);color:#fff}
.hero .wrap{padding-top:44px;padding-bottom:48px}
.kick{margin:0;font-size:.8rem;font-weight:500;letter-spacing:.09em;text-transform:uppercase;opacity:.82;font-variant-numeric:tabular-nums}
.hero h1{font-size:clamp(1.6rem,4vw,2.6rem);font-weight:700;line-height:1.14;letter-spacing:-.01em;max-width:24ch;margin-top:12px}
.hero .r{max-width:60ch;margin:16px 0 0;font-size:1.05rem;line-height:1.55;opacity:.9}
.hero .q{max-width:48ch;margin:24px 0 0;padding-left:16px;border-left:2px solid rgba(255,255,255,.5);font-family:var(--serif);font-style:italic;font-size:1.15rem;line-height:1.5}

/* Graella: contingut i columna lateral */
.pg{display:grid;grid-template-columns:minmax(0,1fr) 270px;grid-template-rows:auto auto auto auto 1fr;column-gap:56px}
.pg>.blk{grid-column:1}
.pg>.side{grid-column:2;grid-row:1/span 5}
.blk{margin-top:52px;scroll-margin-top:24px}
.blk-h{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:18px}
.blk-h h2{font-size:1.5rem}
.tot{font:inherit;font-size:.9rem;font-weight:500;color:var(--c-ink);background:none;border:0;padding:4px 0;cursor:pointer}
.tot:hover{text-decoration:underline;text-underline-offset:4px}

/* Acordió d'apartats */
.acc{background:var(--paper);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.ap{scroll-margin-top:24px}
.ap+.ap{border-top:1px solid var(--hair)}
.ap>summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:28px minmax(0,1fr) 20px;grid-template-areas:". y c" "n t c" ". r c";column-gap:16px;padding:22px 26px 22px 22px;transition:background-color .15s}
.ap>summary::-webkit-details-marker{display:none}
.ap>summary:hover{background:#FAFBFC}
.ap .y{grid-area:y;font-size:.78rem;font-weight:500;letter-spacing:.05em;color:var(--muted);font-variant-numeric:tabular-nums;margin-bottom:3px}
.ap .n{grid-area:n;align-self:baseline;font-family:var(--serif);font-size:1.2rem;font-weight:600;color:var(--c-ink);font-variant-numeric:lining-nums tabular-nums;text-align:right}
.ap h3{grid-area:t;align-self:baseline;font-size:1.2rem;line-height:1.3}
.ap .rs{grid-area:r;margin-top:5px;font-size:.94rem;line-height:1.5;color:var(--muted);max-width:62ch}
.chev{grid-area:c;align-self:center;justify-self:end;width:9px;height:9px;margin-top:-4px;border-right:2px solid #9AA2B1;border-bottom:2px solid #9AA2B1;transform:rotate(45deg);transition:transform .2s ease,border-color .2s}
.ap[open],.ap[open]>summary{box-shadow:inset 3px 0 0 var(--c)}
.ap[open] .chev{transform:rotate(225deg);margin-top:6px;border-color:var(--c-ink)}
.ap-b{padding:2px 26px 34px 66px}
.ap[open] .ap-b{animation:obre .24s ease}
@keyframes obre{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* Text llarg */
.md{max-width:66ch}
.ap-b .md{font-size:1.0625rem;line-height:1.75;max-width:640px}
.md p{margin:0 0 1em}
.md>:last-child{margin-bottom:0}
.md strong{font-weight:700}
.md a{color:var(--c-ink);text-decoration-thickness:1px;text-underline-offset:3px}
.md img{border-radius:8px}
/* Imatges dins dels apartats. Un paràgraf amb una o dues imatges i, a sota, el peu en cursiva. */
.md p:has(>img){display:flex;gap:12px;justify-content:center;align-items:flex-start;margin:1.4em 0 .5em}
.md p:has(>img) img{display:block;max-height:460px;width:auto;max-width:100%;min-width:0;object-fit:contain;background:var(--soft);cursor:zoom-in}
.md p:has(>img+img) img{max-width:calc(50% - 6px)}
.md p:has(>img)+p>em:only-child{display:block;font-size:.85rem;line-height:1.45;color:var(--muted);text-align:center;font-style:normal;margin:0 auto 1.4em;max-width:640px}
.md blockquote{margin:1em 0;padding:2px 0 2px 16px;border-left:2px solid var(--c);font-family:var(--serif)}
.md h4{font-size:1.08rem;color:var(--ink);margin:1.9em 0 .5em;break-after:avoid}
.md h4:first-child{margin-top:.3em}
.md ul,.md ol{margin:0 0 1em;padding-left:22px}
.md li+li{margin-top:.55em}

/* Fitxa final de cada apartat */
.fx{display:grid;grid-template-columns:150px minmax(0,1fr);gap:14px 20px;max-width:640px;margin:30px 0 0;padding-top:22px;border-top:1px solid var(--hair);font-size:.92rem;color:var(--ink2)}
.fx dt{font-size:.72rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding-top:4px}
.fx dd{margin:0;line-height:1.5}
.chips,.amb{list-style:none;margin:0;padding:0}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chips li{background:var(--soft);border-radius:6px;padding:2px 9px;font-size:.86rem;color:var(--ink2)}
.amb li{padding-top:2px}
.amb li+li{margin-top:4px}
.amb a{color:inherit;text-decoration-color:var(--line);text-underline-offset:3px}
.amb a:hover{color:var(--c-ink);text-decoration-color:currentColor}

/* Columna lateral */
.side{margin-top:52px;display:flex;flex-direction:column;gap:22px}
.side h3{font-size:1.02rem;margin-bottom:8px}
.nav h3{font-family:var(--sans);font-size:.72rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.nav a{display:block;padding:6px 0 6px 14px;border-left:2px solid var(--line);text-decoration:none;font-size:.93rem;color:var(--ink2);transition:border-color .15s,color .15s}
.nav a:hover{border-left-color:var(--c);color:var(--ink)}
.taller{display:block;text-decoration:none;background:var(--c-soft);border:1px solid color-mix(in srgb,var(--c) 20%,#fff);border-radius:12px;padding:18px 20px;transition:border-color .15s}
.taller:hover{border-color:color-mix(in srgb,var(--c) 45%,#fff)}
.taller p{margin:0 0 12px;font-size:.9rem;line-height:1.5;color:var(--ink2)}
.taller span,.mes{font-size:.9rem;font-weight:500;color:var(--c-ink)}
.taller span::after,.mes::after{content:" \2192"}
.pau{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:18px 20px}
.bar{margin:12px 0 0}
.bar div{display:flex;justify-content:space-between;align-items:baseline;gap:12px;font-size:.85rem;line-height:1.35;color:var(--ink2)}
.bar b{font-weight:500;color:var(--ink);font-variant-numeric:tabular-nums}
.bar s{display:block;height:4px;margin-top:6px;border-radius:2px;background:var(--soft);overflow:hidden}
.bar i{display:block;height:100%;border-radius:2px;background:var(--c);opacity:.8}
.src{margin:14px 0 0;font-size:.75rem;line-height:1.45;color:var(--muted)}
.mes{display:inline-block;margin-top:12px;text-decoration:none}
.mes:hover,.taller:hover span{text-decoration:underline;text-underline-offset:3px}

/* Fonts */
.fonts{display:grid;gap:16px}
figure.font{margin:0;background:var(--paper);border:1px solid var(--line);border-radius:12px;overflow:hidden;scroll-margin-top:24px}
figure.font img{display:block;width:100%;max-height:440px;object-fit:contain;background:#ECEEF2;cursor:zoom-in}
.ft{padding:22px 26px 24px}
.fn,.ex-l,.ctx h4{font-family:var(--sans);font-size:.72rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;margin:0}
.fn,.ex-l{color:var(--c-ink)}
figure.font h3{font-size:1.15rem;margin-top:6px}
.meta{margin:3px 0 0;font-size:.88rem;color:var(--muted)}
.txt{margin:18px 0 0;padding:2px 0 2px 18px;border-left:2px solid var(--c);font-family:var(--serif);font-size:1rem;line-height:1.7}
.txt p{margin:0 0 .7em}
.txt>:last-child{margin-bottom:0}
figure.font figcaption{margin-top:10px;font-size:.84rem;color:var(--muted)}
figure.font figcaption a{color:var(--c-ink);text-underline-offset:3px}
.ctx{margin-top:20px;padding-top:16px;border-top:1px solid var(--hair);font-size:.95rem;line-height:1.65;color:var(--ink2)}
.ctx h4{color:var(--muted);margin-bottom:6px}
.ctx p{margin:0 0 .8em}
.ctx>:last-child{margin-bottom:0}

/* Pràctica PAU */
.exs{display:grid;gap:12px}
.ex{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:20px 26px}
.ex .md{margin-top:8px;max-width:none;line-height:1.65}

/* Navegació entre temes */
.pager{display:flex;justify-content:space-between;gap:16px;margin-top:64px;padding-top:22px;border-top:1px solid var(--line)}
.pager a{text-decoration:none;font-weight:500;max-width:46%;color:var(--ink);transition:color .15s}
.pager a:hover{color:var(--c-ink)}
.pager a.seg{text-align:right}
.pager small{display:block;font-weight:400;font-size:.8rem;color:var(--muted);margin-bottom:2px}

/* Imatge ampliada */
dialog{border:0;padding:0;background:transparent;max-width:96vw;max-height:94vh}
dialog::backdrop{background:rgba(10,14,22,.85)}
dialog img{max-width:96vw;max-height:90vh;display:block}
dialog button{position:fixed;top:14px;right:18px;font:inherit;font-weight:500;background:#fff;border:0;border-radius:6px;padding:6px 12px;cursor:pointer}

@media (max-width:920px){
  .pg{grid-template-columns:minmax(0,1fr)}
  .pg>.side{grid-column:1;grid-row:auto;display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px;align-items:start}
  .nav{display:none}
}
@media (max-width:560px){.wrap{padding-left:16px;padding-right:16px}}
@media (max-width:640px){
  .hero .wrap{padding-top:32px;padding-bottom:36px}
  .pg>.side{grid-template-columns:1fr}
  .blk{margin-top:40px}
  .ap>summary{grid-template-columns:20px minmax(0,1fr) 16px;column-gap:12px;padding:18px 16px}
  .ap h3{font-size:1.1rem}
  .ap-b{padding:0 16px 28px}
  .ap-b .md{font-size:1rem;line-height:1.7}
  .fx{grid-template-columns:1fr;gap:6px}
  .fx dd+dt{margin-top:12px}
  .ft,.ex{padding-left:18px;padding-right:18px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important;animation:none!important}
}
@media print{
  @page{margin:16mm 15mm}
  *{animation:none!important;transition:none!important}
  body{background:#fff;font-size:11pt}
  .hm,.side,.tot,.chev,.pager,dialog{display:none!important}
  .hero{background:none;color:var(--ink)}
  .hero .wrap{padding:0 0 8px}
  .hero .q{border-left-color:var(--ink)}
  .wrap{max-width:none;padding:0}
  .pg{display:block}
  .acc,figure.font,.ex{border:0;border-radius:0;background:none}
  .ap[open]{box-shadow:none}
  .ap>summary{padding:16px 0 6px;break-after:avoid}
  .ap-b{padding:0 0 12px}
  .ap-b .md,.txt{font-size:11pt}
  .ft,.ex{padding:12px 0}
  figure.font,.ex,.fx{break-inside:avoid}
  a{text-decoration:none}
}

/* Què has d'entendre d'aquest tema */
.entendre .una{margin:0 0 14px;padding:14px 16px;border-left:3px solid var(--c);background:var(--paper);border-radius:0 10px 10px 0;line-height:1.55}
.entendre .claus{margin:0;padding-left:22px;line-height:1.55}
.entendre .claus li+li{margin-top:.6em}
.entendre .claus b,.entendre .una b{color:var(--ink)}