:root {
  --bg: #0B0D14; --card: #141826; --line: #232a3d; --txt: #E7ECF7; --mut: #8C97B2;
  --acc: #3D7BFF; --acc2: #FFB020; --ok: #2BC48A; --err: #FF5A6A; --warn: #F5B841;
  --r: 12px;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--txt); font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--acc); text-decoration: none; }
h1 { font-size: 22px; margin: 6px 0 16px; }
h2 { font-size: 17px; margin: 0 0 12px; }

/* barra in alto */
.top { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 16px; padding: 10px 16px;
  background: rgba(11,13,20,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.brand { font-size: 19px; font-weight: 700; color: var(--txt); white-space: nowrap; }
.brand b, .login h1 b { color: var(--acc2); }
.top nav { display: flex; align-items: center; gap: 4px; flex: 1; flex-wrap: wrap; }
.top nav a { color: var(--mut); padding: 7px 11px; border-radius: 8px; }
.top nav a.on, .top nav a:hover { color: var(--txt); background: var(--card); }
.top .who { margin-left: auto; color: var(--mut); font-size: 13px; }
.top .who b { color: var(--acc2); }
.burger { display: none; margin-left: auto; background: none; border: 0; color: var(--txt); font-size: 24px; padding: 4px 8px; }

main { max-width: 1150px; margin: 0 auto; padding: 18px 16px 60px; }
main.center { max-width: 420px; padding-top: 12vh; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 16px; margin-bottom: 16px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 14px; }
.stat .n { font-size: 26px; font-weight: 700; }
.stat .l { color: var(--mut); font-size: 13px; }
.stat.ok .n { color: var(--ok); } .stat.err .n { color: var(--err); } .stat.warn .n { color: var(--warn); }

label { display: block; color: var(--mut); font-size: 13px; margin: 10px 0 4px; }
input, select, textarea { width: 100%; padding: 10px 11px; background: #0E1220; color: var(--txt); border: 1px solid var(--line);
  border-radius: 9px; font: inherit; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--acc); }
input[type=checkbox] { width: auto; margin-right: 6px; }
input[type=color] { padding: 2px; height: 40px; }
.check { display: flex; align-items: center; color: var(--txt); font-size: 15px; }
.row { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0 14px; }
.hint, .mut { color: var(--mut); font-size: 13px; }

button, .btn { display: inline-block; padding: 10px 16px; margin-top: 14px; background: var(--acc); color: #fff; border: 0; border-radius: 9px;
  font: inherit; font-weight: 600; cursor: pointer; }
button.sec, .btn.sec { background: #263049; }
button.danger, .btn.danger { background: #3a1820; color: var(--err); }
button.sm, .btn.sm { padding: 6px 10px; margin: 0; font-size: 13px; }
.actions { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.actions form { margin: 0; }

.flash { padding: 11px 14px; border-radius: 10px; margin-bottom: 14px; background: #133626; color: #9CF0C9; }
.flash.err { background: #3a1820; color: #FFB3BC; }

.tbl { overflow-x: auto; padding: 0; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { color: var(--mut); font-weight: 500; font-size: 13px; white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
code { background: #0E1220; padding: 2px 6px; border-radius: 6px; font-size: 14px; letter-spacing: .5px; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 99px; font-size: 12px; font-weight: 600; background: #263049; color: var(--mut); white-space: nowrap; }
.badge.ok { background: #133626; color: var(--ok); }
.badge.err { background: #3a1820; color: var(--err); }
.badge.warn { background: #3a2e12; color: var(--warn); }

.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.tabs a { padding: 6px 12px; border-radius: 99px; background: var(--card); border: 1px solid var(--line); color: var(--mut); font-size: 14px; }
.tabs a.on { color: #fff; background: var(--acc); border-color: var(--acc); }
.search { display: flex; gap: 8px; margin-bottom: 12px; }
.search button { margin: 0; }

.login h1 { text-align: center; font-size: 28px; }
.swatches { display: flex; gap: 6px; margin-top: 6px; }
.swatches i { width: 22px; height: 22px; border-radius: 6px; border: 1px solid var(--line); }
.preview { border-radius: 12px; padding: 16px; border: 1px solid var(--line); }
.preview .pv-bar { height: 8px; border-radius: 4px; margin: 8px 0; }
details > summary { cursor: pointer; color: var(--acc); margin: 8px 0; }
.code-big { font-size: 26px; font-weight: 700; letter-spacing: 3px; }

@media (max-width: 760px) {
  .burger { display: block; }
  .top { flex-wrap: wrap; }
  .top nav { display: none; flex-basis: 100%; flex-direction: column; align-items: stretch; }
  body.nav-open .top nav { display: flex; }
  .top .who { margin: 6px 0; padding: 0 11px; }
  /* tabelle → schede su telefono */
  table.cards thead { display: none; }
  table.cards tr { display: block; border-bottom: 1px solid var(--line); padding: 8px 0; }
  table.cards td { display: block; position: relative; border: 0; padding: 4px 12px 4px 118px; text-align: right; min-height: 28px; }
  table.cards td::before { content: attr(data-l); position: absolute; left: 12px; top: 6px; color: var(--mut); font-size: 13px; }
  table.cards td.act { padding: 8px 12px 4px; text-align: left; }
  table.cards td.act::before { content: none; }
}

/* scelta del tema */
.themes { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }
.th { display: flex; align-items: center; gap: 10px; margin: 0; padding: 8px; border: 1px solid var(--line); border-radius: 10px; color: var(--txt); font-size: 14px; cursor: pointer; }
.th input { display: none; }
.th:has(input:checked) { border-color: var(--acc); background: #16203a; }
.th .sw { flex: none; width: 42px; height: 42px; border-radius: 9px; border: 2px solid; display: flex; align-items: flex-end; gap: 3px; padding: 5px; }
.th .sw i { flex: 1; height: 10px; border-radius: 3px; }

/* statistiche */
.bars { display: flex; align-items: flex-end; gap: 2px; height: 160px; border-bottom: 1px solid var(--line); }
.bar { flex: 1; height: 100%; display: flex; align-items: flex-end; cursor: default; }
.bar i { display: block; width: 100%; background: var(--acc); border-radius: 4px 4px 0 0; }
.bar:hover i { background: #6E9BFF; }
.bars-x { display: flex; justify-content: space-between; color: var(--mut); font-size: 12px; margin-top: 6px; }
table.rank td { padding: 6px 0; border-bottom: 1px solid var(--line); }
table.rank td.num { text-align: right; white-space: nowrap; padding-left: 12px; font-variant-numeric: tabular-nums; }
.meter { height: 4px; background: #1D2436; border-radius: 4px; margin-top: 5px; }
.meter i { display: block; height: 100%; background: var(--acc); border-radius: 4px; }
.diag-sec { margin-bottom: 14px; }
.diag-sec h3 { font-size: 15px; margin: 0 0 6px; }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 6px; }
.dot.ok { background: var(--ok); } .dot.warn { background: var(--warn); } .dot.bad { background: var(--err); }