/* ShuttlePass — foglio di stile unico, mobile first. */
:root {
  color-scheme: light dark;
  --bg: #f6f7f9;
  --card: #ffffff;
  --ink: #16181d;
  --muted: #5d6470;
  --line: #e3e6ea;
  --brand: #0d6b58;
  --brand-ink: #ffffff;
  --ok: #17794f;
  --warn: #9a6a00;
  --err: #b3261e;
  --ok-tenue: #dff0e7;
  --warn-tenue: #fbf0d8;
  --err-tenue: #fadfdd;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 8px 24px rgba(16, 24, 40, .06);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a; --card: #1c1f25; --ink: #eef1f5; --muted: #a3acba;
    --line: #2b3038; --brand: #2ea87f; --brand-ink: #06231b;
    --ok: #4cc38a; --warn: #e0a800; --err: #f2726a;
    --ok-tenue: #16332a; --warn-tenue: #332a12; --err-tenue: #3a201e;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .3);
  }
}

* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  padding: env(safe-area-inset-top) 0 env(safe-area-inset-bottom);
}
.wrap { max-width: 640px; margin: 0 auto; padding: 20px 16px 48px; }
.wrap.wide { max-width: 1040px; }

h1 { font-size: 1.5rem; margin: .2em 0 .3em; letter-spacing: -.01em; }
h2 { font-size: 1.15rem; margin: 1.6em 0 .6em; }
p { margin: .5em 0; }
a { color: var(--brand); }
small, .muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

header.site { display: flex; align-items: center; gap: 10px; padding: 14px 16px; border-bottom: 1px solid var(--line); background: var(--card); }
header.site .logo { font-weight: 700; letter-spacing: -.02em; }
header.site nav { margin-left: auto; display: flex; gap: 14px; font-size: .92rem; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); margin: 14px 0; }
.card.tight { padding: 14px; }
.center { text-align: center; }

.price { font-size: 2.3rem; font-weight: 700; letter-spacing: -.02em; }
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: .8rem; font-weight: 600; border: 1px solid var(--line); }
/* La prima riga di ciascuna coppia è la riserva per i browser senza
   color-mix (Chrome si ferma alla 109 su Windows 7): senza, le pastiglie
   resterebbero senza sfondo. */
.badge.ok { background: var(--ok-tenue); color: var(--ok); border-color: transparent; }
.badge.ok { background: color-mix(in srgb, var(--ok) 14%, transparent); }
.badge.warn { background: var(--warn-tenue); color: var(--warn); border-color: transparent; }
.badge.warn { background: color-mix(in srgb, var(--warn) 16%, transparent); }
.badge.err { background: var(--err-tenue); color: var(--err); border-color: transparent; }
.badge.err { background: color-mix(in srgb, var(--err) 14%, transparent); }

label { display: block; font-weight: 600; font-size: .92rem; margin: 14px 0 6px; }
input, select, textarea {
  width: 100%; padding: 12px; font: inherit; color: inherit;
  background: var(--bg); border: 1px solid var(--line); border-radius: 10px;
}
input:focus, select:focus { outline: 2px solid var(--brand); outline-offset: 1px; }

.choices { display: grid; gap: 8px; }
.choice { display: flex; align-items: center; gap: 10px; border: 1px solid var(--line); border-radius: 10px; padding: 12px; cursor: pointer; background: var(--bg); }
.choice input { width: auto; margin: 0; }
.choice:has(input:checked) { border-color: var(--brand); box-shadow: inset 0 0 0 1px var(--brand); }

button, .btn {
  display: inline-block; width: 100%; padding: 14px 18px; margin-top: 18px;
  font: inherit; font-weight: 600; text-align: center; text-decoration: none;
  color: var(--brand-ink); background: var(--brand); border: 0; border-radius: 12px; cursor: pointer;
}
button.ghost, .btn.ghost { background: transparent; color: var(--brand); border: 1px solid var(--line); }
button.small, .btn.small { width: auto; padding: 8px 14px; margin: 0; font-size: .9rem; }

.qr { width: 100%; max-width: 320px; height: auto; display: block; margin: 0 auto; background: #fff; padding: 10px; border-radius: 12px; }
.qr-line { stroke: #000; }
.qr-wrap { background: #fff; border-radius: 14px; padding: 12px; }

table { width: 100%; border-collapse: collapse; font-size: .93rem; }
th, td { text-align: left; padding: 9px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.scroll-x { overflow-x: auto; }

.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.kpi { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; }
.kpi .v { font-size: 1.6rem; font-weight: 700; letter-spacing: -.02em; }
.kpi .k { color: var(--muted); font-size: .85rem; }

.alert { border-radius: 10px; padding: 12px 14px; margin: 12px 0; font-size: .95rem; border: 1px solid transparent; }
.alert.err { background: var(--err-tenue); color: var(--err); }
.alert.err { background: color-mix(in srgb, var(--err) 12%, transparent); }
.alert.warn { background: var(--warn-tenue); color: var(--warn); }
.alert.warn { background: color-mix(in srgb, var(--warn) 14%, transparent); }
.alert.ok { background: var(--ok-tenue); color: var(--ok); }
.alert.ok { background: color-mix(in srgb, var(--ok) 12%, transparent); }

footer.site { text-align: center; color: var(--muted); font-size: .85rem; padding: 24px 16px 40px; }

@media print {
  body { background: #fff; }
  header.site, footer.site, .no-print { display: none !important; }
  .card { box-shadow: none; border: none; }
  .wrap { max-width: none; padding: 0; }
}