:root {
  --fons: #101418; --targeta: #1a2027; --targeta2: #222a32; --text: #f2f4f5; --suau: #9aa5ae; --linia: #2a323a;
  --feina: #f0643c; --descans: #3cb4f0; --escalfament: #f0b43c; --calma: #6cd28c; --error: #ff6b6b;
  --fet: #4cc27a; --esport: #3c9bf0; --no: #8a4b4b;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--fons); color: var(--text); min-height: 100vh;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; line-height: 1.45; }
a { color: var(--text); }
.pagina { max-width: 760px; margin: 0 auto; padding: 16px 16px 48px; }
nav.principal { display: flex; align-items: center; gap: 4px; padding: 10px 16px; border-bottom: 1px solid var(--linia);
  overflow-x: auto; white-space: nowrap; }
nav.principal a, nav.principal button { color: var(--suau); text-decoration: none; padding: 8px 10px; border-radius: 10px;
  font: inherit; font-size: 15px; background: none; border: 0; cursor: pointer; }
nav.principal a.actiu { color: var(--text); background: var(--targeta); }
nav.principal .logo { color: var(--text); font-weight: 750; margin-right: auto; padding-left: 0; }
nav.principal form { margin: 0; }
h1 { font-size: 26px; line-height: 1.2; margin: 18px 0 4px; }
h2 { font-size: 14px; text-transform: uppercase; letter-spacing: .1em; margin: 28px 0 10px; color: var(--suau); }
.sub { color: var(--suau); margin: 0 0 18px; }
.targeta { background: var(--targeta); border-radius: 16px; padding: 16px; }
.graella { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.exercici svg { width: 100%; height: auto; display: block; color: var(--text); }
.exercici b { display: block; font-size: 17px; margin-top: 6px; }
.exercici p { color: var(--suau); margin: 4px 0 0; font-size: 15px; }
svg .cos { fill: none; stroke: currentColor; stroke-width: 5; stroke-linecap: round; stroke-linejoin: round; }
svg .lluny { opacity: .4; }
svg .cap { fill: currentColor; }
svg .terra { stroke: var(--linia); stroke-width: 3; stroke-linecap: round; }
svg .obj { fill: #4a5560; }
.boto, button.boto { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0;
  border-radius: 14px; padding: 14px 18px; font: inherit; font-size: 17px; font-weight: 650; cursor: pointer;
  text-decoration: none; background: var(--targeta2); color: var(--text); }
.boto.gran { background: var(--text); color: var(--fons); width: 100%; font-size: 20px; padding: 18px; }
.boto.petit { padding: 9px 12px; font-size: 15px; }
.botons { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.botons .boto { flex: 1 1 140px; }
.avis { border-radius: 12px; padding: 12px 14px; margin: 12px 0; background: var(--targeta2); }
.avis.error { background: #3a1f22; color: #ffd4d4; }
.avis.ok { background: #1d3527; color: #d4ffe2; }
form.camps { display: grid; gap: 14px; }
label { display: grid; gap: 6px; font-weight: 600; }
label small, .ajuda { color: var(--suau); font-weight: 400; font-size: 14px; }
input[type=text], input[type=password], input[type=time], input[type=number] {
  font: inherit; font-size: 17px; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--linia);
  background: var(--fons); color: var(--text); width: 100%; }
input:focus-visible, button:focus-visible, a:focus-visible { outline: 2px solid var(--descans); outline-offset: 2px; }
fieldset { border: 0; padding: 0; margin: 0; display: grid; gap: 8px; }
legend { font-weight: 600; margin-bottom: 6px; padding: 0; }
.opcions { display: flex; flex-wrap: wrap; gap: 8px; }
.opcions label { display: flex; align-items: center; gap: 8px; background: var(--targeta2); padding: 10px 14px;
  border-radius: 12px; font-weight: 500; cursor: pointer; }
.opcions input { accent-color: var(--descans); width: 18px; height: 18px; margin: 0; }
.xifres { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; }
.xifra { background: var(--targeta); border-radius: 16px; padding: 14px 16px; }
.xifra b { display: block; font-size: 32px; line-height: 1.1; font-variant-numeric: tabular-nums; }
.xifra span { color: var(--suau); font-size: 14px; }
.calendari { display: grid; grid-template-columns: repeat(16, minmax(0, 22px)); gap: 3px; }
.calendari .setmana { display: grid; gap: 3px; }
.calendari i { display: block; aspect-ratio: 1; border-radius: 4px; background: var(--targeta2); }
.calendari i.fet { background: var(--fet); }
.calendari i.esport { background: var(--esport); }
.calendari i.no { background: var(--no); }
.calendari i.descans { background: transparent; border: 1px dashed var(--linia); }
.calendari i.futur { background: transparent; }
.llegenda { display: flex; flex-wrap: wrap; gap: 14px; color: var(--suau); font-size: 14px; margin-top: 8px; }
.llegenda i { display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 9px 6px; border-bottom: 1px solid var(--linia); vertical-align: top; }
th { color: var(--suau); font-weight: 600; }
.etiqueta { display: inline-block; padding: 2px 8px; border-radius: 999px; background: var(--targeta2); font-size: 13px; }
.copia { word-break: break-all; font-family: ui-monospace, monospace; font-size: 15px; }
.estat-dia { font-size: 18px; margin: 10px 0 0; }
.persona { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--linia); }
.persona:last-child { border-bottom: 0; }
.persona > div { flex: 1; min-width: 0; }
.persona p { margin: 2px 0 0; color: var(--suau); font-size: 14px; }
@media (max-width: 480px) {
  nav.principal .logo span { display: none; }
  nav.principal a, nav.principal button { padding: 8px 8px; }
  h1 { font-size: 23px; }
  .graella { grid-template-columns: 1fr 1fr; gap: 8px; }
  .exercici { padding: 10px; }
  .exercici b { font-size: 15px; }
  .exercici p { font-size: 13px; }
}