:root {
  --fondo: #f7f8fa; --carta: #ffffff; --testo: #101828; --tenue: #475467; --bordo: #e4e7ec;
  --a: #0b6b5d; --a-chiaro: #e6f4f1; --ambra: #b54708; --ambra-chiaro: #fffaeb; --codice: #f2f4f7;
}
@media (prefers-color-scheme: dark) {
  :root { --fondo: #0c111d; --carta: #161b26; --testo: #f5f5f6; --tenue: #a4a7ae; --bordo: #2b313d;
    --a: #3cc4a8; --a-chiaro: #10322c; --ambra: #fdb022; --ambra-chiaro: #3a2a08; --codice: #1f2430; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--fondo); color: var(--testo); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
header, main, footer { max-width: 860px; margin: 0 auto; padding: 0 16px; }
header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 20px; padding-bottom: 8px; }
.marchio { font-weight: 700; font-size: 20px; color: var(--testo); text-decoration: none; letter-spacing: -0.01em; }
.marchio span { color: var(--a); }
nav a { color: var(--tenue); text-decoration: none; margin-left: 16px; font-size: 15px; }
nav a:hover { color: var(--a); }
h1 { font-size: clamp(28px, 6vw, 40px); line-height: 1.15; letter-spacing: -0.02em; margin: 28px 0 12px; }
h2 { font-size: 22px; margin: 36px 0 10px; letter-spacing: -0.01em; }
h3 { font-size: 17px; margin: 24px 0 6px; }
p, li { color: var(--tenue); }
strong, b { color: var(--testo); }
a { color: var(--a); }
.carta { background: var(--carta); border: 1px solid var(--bordo); border-radius: 16px; padding: 20px; margin: 16px 0; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; border-radius: 12px;
  border: 1px solid var(--bordo); background: var(--carta); color: var(--testo); font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; }
.btn.primario { background: var(--a); border-color: var(--a); color: #fff; }
.pulsanti { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0; }
.nota { background: var(--ambra-chiaro); color: var(--ambra); border-radius: 12px; padding: 12px 14px; font-size: 15px; }
code, pre { font: 14px/1.5 ui-monospace, SFMono-Regular, Consolas, monospace; background: var(--codice); border-radius: 8px; }
code { padding: 1px 6px; }
pre { padding: 14px; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--bordo); vertical-align: top; }
th { color: var(--testo); }
.righe-scontrino { list-style: none; padding: 0; margin: 0; }
.righe-scontrino li { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--bordo); }
.totale { display: flex; justify-content: space-between; font-weight: 700; font-size: 20px; margin-top: 10px; color: var(--testo); }
label { display: block; font-weight: 600; margin: 12px 0 4px; color: var(--testo); }
input, select, textarea { width: 100%; min-height: 44px; padding: 8px 10px; border-radius: 10px; border: 1px solid var(--bordo);
  background: var(--carta); color: var(--testo); font: inherit; }
.griglia { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 760px) { .griglia { grid-template-columns: 1fr 1fr; } }
#qr { background: #fff; padding: 12px; border-radius: 12px; display: inline-block; }
#qr img, #qr svg { display: block; width: 100%; max-width: 280px; height: auto; }
footer { color: var(--tenue); font-size: 14px; padding-top: 32px; padding-bottom: 40px; }
footer a { color: var(--tenue); }
[hidden] { display: none !important; }