:root {
  --bg: #0f1420;
  --bg-soft: #161d2d;
  --panel: #1c2436;
  --panel-2: #232d43;
  --line: #2c3852;
  --txt: #e8edf7;
  --txt-dim: #9fb0cc;
  --accent: #4f9dff;
  --accent-2: #6ee7b7;
  --good: #3ecf8e;
  --bad: #ff6b6b;
  --warn: #ffcf5c;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: radial-gradient(1200px 600px at 80% -10%, #1b2540 0%, var(--bg) 55%) fixed;
  color: var(--txt);
  font: 16px/1.55 "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
button { font: inherit; cursor: pointer; }
.hidden { display: none !important; }

/* Layout */
.app-shell { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
.rail {
  background: var(--bg-soft); border-right: 1px solid var(--line);
  padding: 22px 18px; display: flex; flex-direction: column; gap: 18px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand .mark {
  width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), #7c5cff); font-weight: 800; font-size: 20px;
}
.brand h1 { font-size: 17px; margin: 0; }
.brand p { margin: 0; font-size: 12px; color: var(--txt-dim); }
.nav { display: flex; flex-direction: column; gap: 4px; }
.nav button {
  text-align: left; background: transparent; border: 0; color: var(--txt-dim);
  padding: 10px 12px; border-radius: 10px; display: flex; gap: 10px; align-items: center;
}
.nav button:hover { background: var(--panel); color: var(--txt); }
.nav button.active { background: var(--panel-2); color: var(--txt); }
.rail .spacer { flex: 1; }
.userbox { font-size: 13px; color: var(--txt-dim); border-top: 1px solid var(--line); padding-top: 14px; }
.userbox b { color: var(--txt); }
.workspace { padding: 34px 40px; max-width: 1000px; }
.eyebrow { color: var(--accent); text-transform: uppercase; letter-spacing: .12em; font-size: 12px; font-weight: 700; margin: 0 0 6px; }
h2.page-title { margin: 0 0 22px; font-size: 26px; }

/* Cards */
.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow);
}
.card.click { cursor: pointer; transition: transform .12s, border-color .12s; }
.card.click:hover { transform: translateY(-3px); border-color: var(--accent); }
.card h3 { margin: 0 0 6px; font-size: 17px; }
.card .sub { color: var(--txt-dim); font-size: 13px; }
.stat-num { font-size: 30px; font-weight: 800; }
.pill { display: inline-block; font-size: 11px; padding: 2px 9px; border-radius: 999px; background: var(--panel-2); color: var(--txt-dim); }
.pill.good { background: rgba(62,207,142,.15); color: var(--good); }
.pill.warn { background: rgba(255,207,92,.15); color: var(--warn); }

/* Quiz */
.quiz-wrap { max-width: 780px; }
.quiz-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; color: var(--txt-dim); font-size: 14px; }
.progress-bar { height: 8px; background: var(--panel-2); border-radius: 99px; overflow: hidden; margin-bottom: 20px; }
.progress-bar > span { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.question { font-size: 20px; font-weight: 600; margin: 6px 0 20px; }
.options { display: flex; flex-direction: column; gap: 10px; }
.option {
  text-align: left; background: var(--panel); border: 1.5px solid var(--line);
  color: var(--txt); padding: 14px 16px; border-radius: 12px; display: flex; gap: 12px; align-items: flex-start;
}
.option:hover:not(:disabled) { border-color: var(--accent); }
.option .k { font-weight: 700; color: var(--txt-dim); flex: 0 0 auto; }
.option.correct { border-color: var(--good); background: rgba(62,207,142,.12); }
.option.wrong { border-color: var(--bad); background: rgba(255,107,107,.12); }
.option.sel { border-color: var(--accent); background: rgba(79,157,255,.12); }
.option:disabled { cursor: default; }
.explain { margin-top: 16px; padding: 14px 16px; border-left: 3px solid var(--accent); background: var(--bg-soft); border-radius: 8px; font-size: 14px; color: var(--txt-dim); }
.explain b { color: var(--txt); }
.meta-row { display: flex; gap: 10px; align-items: center; margin-top: 14px; font-size: 12px; color: var(--txt-dim); flex-wrap: wrap; }
.btn-row { display: flex; gap: 12px; margin-top: 22px; }
.btn { border: 0; border-radius: 11px; padding: 12px 20px; font-weight: 600; }
.btn.primary { background: linear-gradient(135deg, var(--accent), #6b8cff); color: #06122a; }
.btn.ghost { background: transparent; border: 1.5px solid var(--line); color: var(--txt); }
.btn.ghost:hover { border-color: var(--accent); }
.btn:disabled { opacity: .45; cursor: default; }
.link-btn { background: none; border: 0; color: var(--txt-dim); text-decoration: underline; padding: 0; font-size: 13px; }

/* Timer */
.timer { font-variant-numeric: tabular-nums; font-weight: 700; font-size: 18px; }
.timer.low { color: var(--bad); }

/* Login */
.login-shell { display: grid; place-items: center; min-height: 100vh; padding: 20px; }
.login-card { width: 100%; max-width: 380px; }
.login-card input {
  width: 100%; padding: 12px 14px; margin-top: 8px; border-radius: 10px;
  border: 1.5px solid var(--line); background: var(--bg-soft); color: var(--txt); font: inherit;
}
.login-card label { font-size: 13px; color: var(--txt-dim); }
.login-card .btn { width: 100%; margin-top: 18px; }
.err { color: var(--bad); font-size: 13px; margin-top: 12px; min-height: 18px; }

/* Result */
.result-score { font-size: 56px; font-weight: 800; }
.bars { display: flex; flex-direction: column; gap: 10px; }
.bars .row { display: grid; grid-template-columns: 200px 1fr 48px; gap: 12px; align-items: center; font-size: 13px; }
.bars .track { height: 10px; background: var(--panel-2); border-radius: 99px; overflow: hidden; }
.bars .fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }

@media (max-width: 820px) {
  .app-shell { grid-template-columns: 1fr; }
  .rail { flex-direction: row; flex-wrap: wrap; align-items: center; }
  .rail .nav { flex-direction: row; flex-wrap: wrap; }
  .rail .spacer, .userbox { display: none; }
  .workspace { padding: 20px; }
  .grid.cols-2, .grid.cols-3 { grid-template-columns: 1fr; }
  .bars .row { grid-template-columns: 120px 1fr 40px; }
}

/* ---------- Bandi e concorsi (v2 multi-concorso) ---------- */
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.row-between h3, .row-between h2 { margin: 0; }

.badge {
  font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 99px;
  white-space: nowrap; border: 1px solid transparent;
}
.badge-aperto   { background: rgba(62,207,142,.14); color: var(--good); border-color: rgba(62,207,142,.35); }
.badge-scadenza { background: rgba(255,207,92,.14); color: var(--warn); border-color: rgba(255,207,92,.4); }
.badge-chiuso   { background: var(--panel-2); color: var(--txt-dim); border-color: var(--line); }
.badge-annunciato { background: rgba(79,157,255,.12); color: var(--accent); border-color: rgba(79,157,255,.35); }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 4px; }
.chip {
  font-size: 12px; color: var(--txt-dim); background: var(--panel-2);
  border: 1px solid var(--line); border-radius: 99px; padding: 3px 10px;
}
.chip-ok { color: var(--good); border-color: rgba(62,207,142,.35); background: rgba(62,207,142,.12); }

.concorso-card .sub { min-height: 42px; }
.muted { color: var(--txt-dim); font-style: italic; }

.banner-ok {
  border-left: 3px solid var(--good); background: rgba(62,207,142,.08);
  margin-bottom: 18px; font-weight: 600;
}

.area-title {
  margin: 26px 0 12px; font-size: 14px; text-transform: uppercase;
  letter-spacing: .08em; color: var(--txt-dim); font-weight: 700;
}
.area-title:first-of-type { margin-top: 14px; }

.archivio { margin-top: 28px; }
.archivio > summary {
  cursor: pointer; color: var(--txt-dim); font-size: 14px; padding: 10px 0;
  border-top: 1px solid var(--line);
}
.archivio > summary:hover { color: var(--txt); }
.archivio .grid { margin-top: 14px; }

/* le righe di dettaglio del bando riusano .bars .row: lasciamo respirare il valore */
.card .bars .row a.link-btn { justify-self: end; }

/* Simulazione navigabile: griglia numerata delle domande */
.qgrid-wrap { margin-top: 18px; }
.qgrid { display: flex; flex-wrap: wrap; gap: 8px; }
.qgrid-cell {
  width: 38px; height: 38px; border-radius: 9px; border: 1.5px solid var(--line);
  background: var(--panel); color: var(--txt-dim); font-weight: 700; font-variant-numeric: tabular-nums;
}
.qgrid-cell:hover { border-color: var(--accent); color: var(--txt); }
.qgrid-cell.done { border-color: var(--accent); color: var(--txt); background: rgba(79,157,255,.12); }
.qgrid-cell.current { outline: 2px solid var(--accent); outline-offset: 1px; }

/* Rassegna delle risposte a fine simulazione */
.review-list { display: flex; flex-direction: column; gap: 12px; }
.rev { padding: 14px 16px; border-radius: 10px; border-left: 4px solid var(--line); background: var(--bg-soft); }
.rev.ok { border-left-color: var(--good); }
.rev.ko { border-left-color: var(--bad); }
.rev.blank { border-left-color: var(--warn); }
.rev-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; font-size: 13px; }
.rev-n { font-weight: 700; color: var(--txt-dim); }
.rev-badge { font-weight: 700; font-size: 12px; }
.rev.ok .rev-badge { color: var(--good); }
.rev.ko .rev-badge { color: var(--bad); }
.rev.blank .rev-badge { color: var(--warn); }
.rev-q { font-weight: 600; margin-bottom: 8px; }
.rev-line { font-size: 14px; color: var(--txt-dim); }
.rev-line b { color: var(--txt); }
.rev-line.good b { color: var(--good); }
.rev-exp { margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--line); font-size: 13px; color: var(--txt-dim); }
.rev-exp b { color: var(--txt); }
.rev-line.bad b { color: var(--bad); }

/* Aiuti a richiesta in allenamento: indizio (ambra) e "perché" */
.hint-row { margin: 12px 0 4px; }
.hint-btn { color: var(--warn); }
.hint-box { border-left-color: var(--warn); margin-top: 10px; }
.explain > .link-btn, .options + .link-btn { display: inline-block; margin-top: 14px; }

/* Modalità collaborativa: lobby e sessioni */
.collab-list { display: flex; flex-direction: column; gap: 12px; margin-top: 12px; }
.collab-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.collab-row .sub { margin: 4px 0 0; }