/* Rotendo — sito pubblico (rotendo.it). Tema "Acqua fresca". */
:root {
  --petrolio: #0E5E63;
  --turchese: #2BC4B6;
  --corallo: #F2785C;
  --sfondo: #F6F9F9;
  --carta: #FFFFFF;
  --testo: #1C2B2D;
  --testo-tenue: #55686A;
  --bordo: #DCE6E6;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --sfondo: #0B1A1B;
    --carta: #112628;
    --testo: #E4EEEE;
    --testo-tenue: #9DB3B4;
    --bordo: #24403F;
    --petrolio: #5FC9C0;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--sfondo);
  color: var(--testo);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
header.barra {
  background: #0E5E63;
  color: #fff;
}
header.barra .contenuto {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 14px;
  padding-bottom: 14px;
}
header.barra a { color: #fff; text-decoration: none; }
.marchio { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.25rem; letter-spacing: .2px; }
.marchio svg { width: 30px; height: 30px; flex: none; }
nav.menu { display: flex; gap: 18px; font-size: .95rem; flex-wrap: wrap; }
nav.menu a { opacity: .9; }
nav.menu a:hover { opacity: 1; text-decoration: underline; }
.contenuto { max-width: 820px; margin: 0 auto; padding-left: 16px; padding-right: 16px; }
main.contenuto { padding-top: 32px; padding-bottom: 48px; }
.foglio {
  background: var(--carta);
  border: 1px solid var(--bordo);
  border-radius: 14px;
  padding: 28px 24px;
}
@media (min-width: 640px) { .foglio { padding: 40px 44px; } }
h1 { font-size: 1.75rem; line-height: 1.25; margin: 0 0 6px; color: var(--petrolio); }
h2 { font-size: 1.2rem; margin: 32px 0 8px; color: var(--petrolio); }
h3 { font-size: 1.02rem; margin: 20px 0 6px; }
p, ul, ol, table { margin: 0 0 12px; }
ul, ol { padding-left: 22px; }
li { margin-bottom: 4px; }
a { color: var(--petrolio); }
.versione { color: var(--testo-tenue); font-size: .92rem; margin-bottom: 20px; }
.riquadro {
  border-left: 4px solid var(--turchese);
  background: color-mix(in srgb, var(--turchese) 9%, transparent);
  padding: 12px 16px;
  border-radius: 0 10px 10px 0;
  margin: 16px 0;
}
.segnaposto {
  background: color-mix(in srgb, var(--corallo) 18%, transparent);
  border-radius: 4px;
  padding: 0 4px;
}
.tabella { width: 100%; overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; }
th, td { text-align: left; vertical-align: top; padding: 8px 10px; border-bottom: 1px solid var(--bordo); }
th { color: var(--testo-tenue); font-weight: 600; }
.passi { counter-reset: passo; list-style: none; padding-left: 0; }
.passi li { counter-increment: passo; position: relative; padding-left: 40px; margin-bottom: 12px; }
.passi li::before {
  content: counter(passo);
  position: absolute; left: 0; top: 0;
  width: 28px; height: 28px; border-radius: 50%;
  background: #0E5E63; color: #fff; font-weight: 700; font-size: .9rem;
  display: flex; align-items: center; justify-content: center;
}
.hero { text-align: center; padding: 24px 0 8px; }
.hero h1 { font-size: 2.1rem; }
.hero p { color: var(--testo-tenue); font-size: 1.1rem; max-width: 560px; margin: 8px auto 0; }
footer.piede { color: var(--testo-tenue); font-size: .88rem; padding-bottom: 32px; }
footer.piede a { color: var(--testo-tenue); }
@media print {
  header.barra, footer.piede { display: none; }
  body { background: #fff; color: #000; }
  .foglio { border: 0; padding: 0; }
}