:root {
  --bg: #f6f7fb;
  --card: #ffffff;
  --ink: #14213d;
  --muted: #6b7385;
  --brand: #1d4ed8;
  --brand-ink: #ffffff;
  --accent: #0ea5a4;
  --ok: #15803d;
  --warn: #b45309;
  --danger: #b91c1c;
  --line: #dde1ea;
  --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1424;
    --card: #181f36;
    --ink: #eef1fa;
    --muted: #9aa3bd;
    --brand: #4f7cff;
    --line: #2a3454;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--ink); font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; }
h1, h2, h3 { margin: 0 0 .6em; line-height: 1.2; }
.muted { color: var(--muted); }
.ok { color: var(--ok); font-weight: 600; }
button { font: inherit; cursor: pointer; }

/* ---------- partecipante ---------- */
body.p main { max-width: 560px; margin: 0 auto; padding: 24px 18px 60px; }
body.p h1 { font-size: 1.45rem; margin-bottom: 1em; }
.opt, .send {
  display: block; width: 100%; margin: 0 0 10px; padding: 16px 18px; border-radius: var(--radius);
  border: 2px solid var(--line); background: var(--card); color: var(--ink); text-align: left; font-size: 1.05rem;
}
.opt.sc { display: inline-block; width: calc(20% - 8px); margin-right: 8px; text-align: center; padding: 18px 0; font-weight: 700; }
.opt.sc:last-of-type { margin-right: 0; }
.opt.sel { border-color: var(--brand); background: color-mix(in srgb, var(--brand) 14%, var(--card)); }
.opt:active { transform: scale(.99); }
.send { background: var(--brand); color: var(--brand-ink); border-color: var(--brand); text-align: center; font-weight: 700; margin-top: 8px; }
.send:disabled { opacity: .5; }
input.txt, textarea.txt {
  width: 100%; padding: 14px; font: inherit; font-size: 1.05rem; border-radius: var(--radius);
  border: 2px solid var(--line); background: var(--card); color: var(--ink); margin-bottom: 10px;
}
textarea.txt { min-height: 110px; resize: vertical; }
.hint { font-size: .85rem; color: var(--muted); margin: 0 0 12px; }

/* ---------- risultati (schermo + admin) ---------- */
.row { display: grid; grid-template-columns: minmax(90px, 26%) 1fr auto; gap: 14px; align-items: center; margin: 10px 0; }
.lab { font-weight: 600; word-break: break-word; }
.bar { background: color-mix(in srgb, var(--ink) 9%, transparent); border-radius: 10px; height: 34px; overflow: hidden; }
.fill { height: 100%; background: linear-gradient(90deg, var(--brand), var(--accent)); border-radius: 10px; transition: width .5s ease; min-width: 2px; }
.val { font-variant-numeric: tabular-nums; min-width: 80px; text-align: right; color: var(--muted); }
.avg { font-size: 1.3em; font-weight: 700; margin-top: 14px; }
.cloud { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: .15em .7em; padding: 10px; line-height: 1.05; }
.cloud span { font-weight: 700; transition: font-size .5s ease; }
.board { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.note { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; box-shadow: 0 2px 8px rgba(0,0,0,.05); word-break: break-word; animation: pop .35s ease; }
@keyframes pop { from { opacity: 0; transform: scale(.94) } to { opacity: 1; transform: none } }

/* ---------- schermo proiezione ---------- */
body.s { min-height: 100vh; }
body.s main { max-width: 1400px; margin: 0 auto; padding: 3vh 4vw 12vh; }
body.s h1 { font-size: clamp(1.8rem, 4.2vw, 3.6rem); margin-bottom: .8em; }
body.s .row { font-size: clamp(1.1rem, 2.2vw, 2rem); }
body.s .bar { height: clamp(34px, 5vh, 64px); }
body.s .cloud { font-size: clamp(1rem, 2.2vw, 2.2rem); }
body.s .note { font-size: clamp(1rem, 1.7vw, 1.6rem); }
.qrbox { position: fixed; right: 2vw; bottom: 2vh; background: #fff; padding: 8px; border-radius: 12px; text-align: center; color: #111; font-size: .85rem; box-shadow: 0 4px 18px rgba(0,0,0,.18); }
.qrbox img { width: clamp(100px, 12vw, 190px); display: block; }
.qrbox .u { margin-top: 4px; font-weight: 600; word-break: break-all; max-width: clamp(100px, 12vw, 190px); }
.idle { text-align: center; padding-top: 6vh; }
.idle .qrbig { width: min(46vh, 70vw); background: #fff; padding: 14px; border-radius: 18px; }
.meta { position: fixed; left: 4vw; bottom: 3vh; color: var(--muted); font-size: clamp(1rem, 1.6vw, 1.5rem); }
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: .8rem; font-weight: 700; vertical-align: middle; }
.badge.open { background: color-mix(in srgb, var(--ok) 18%, transparent); color: var(--ok); }
.badge.closed { background: color-mix(in srgb, var(--danger) 16%, transparent); color: var(--danger); }

/* ---------- admin ---------- */
body.a main { max-width: 1100px; margin: 0 auto; padding: 20px 16px 60px; }
body.a header { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; margin-bottom: 18px; }
body.a header h1 { margin: 0; font-size: 1.4rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-bottom: 18px; }
.card h2 { font-size: 1.1rem; }
label { display: block; font-weight: 600; margin: 10px 0 4px; font-size: .92rem; }
.inp { width: 100%; padding: 10px 12px; font: inherit; border-radius: 10px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); }
textarea.inp { min-height: 70px; resize: vertical; }
.chk { display: flex; align-items: center; gap: 8px; font-weight: 500; margin: 8px 0; }
.btn { padding: 9px 14px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--ink); font-weight: 600; }
.btn.pri { background: var(--brand); border-color: var(--brand); color: var(--brand-ink); }
.btn.dng { color: var(--danger); }
.btn.sm { padding: 5px 10px; font-size: .85rem; }
.btns { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
a.btn { text-decoration: none; display: inline-block; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 800px) { .grid2 { grid-template-columns: 1fr; } .row { grid-template-columns: 1fr; gap: 4px; } }
.ans { display: flex; gap: 8px; align-items: center; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--line); }
.ans .t { flex: 1; word-break: break-word; }
.ans.off .t { text-decoration: line-through; opacity: .5; }
.ans.pend .t { color: var(--warn); }
.hist { display: flex; gap: 8px; align-items: center; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--line); }
.hist .t { flex: 1; }
.err { color: var(--danger); font-weight: 600; min-height: 1.2em; }
.login { max-width: 360px; margin: 14vh auto; }

dialog { border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); color: var(--ink); max-width: 520px; width: calc(100% - 32px); padding: 22px; }
dialog::backdrop { background: rgba(0, 0, 0, .45); }
dialog h2 { margin-top: 0; }
.ev { font-size: .85rem; color: var(--muted); margin: 0 0 6px; }

/* ---------- report ---------- */
.rephead { margin: 4px 0 14px; }
.rephead h2 { font-size: 1.3rem; margin-bottom: .2em; text-transform: capitalize; }
.qcard h3 { font-size: 1.1rem; margin-bottom: .3em; }
.qcard .cloud { font-size: 1rem; }
.qcard .note { box-shadow: none; }
@media print {
  :root { --bg: #fff; --card: #fff; --ink: #000; --muted: #444; --line: #bbb; }
  .noprint { display: none !important; }
  body.rep main { max-width: none; padding: 0; }
  .qcard { break-inside: avoid; page-break-inside: avoid; border: 1px solid #bbb; }
  .fill { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .cloud span { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}