:root {
  --bg: #f7f7f8;
  --card: #fff;
  --border: #e5e5e7;
  --text: #111;
  --muted: #6b6b73;
  --primary: #0a5cff;
  --primary-dark: #0747c4;
  --danger: #c4341c;
  --warn: #b97900;
  --pos: #0a7f3f;
  --neg: #c4341c;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
.wrap { max-width: 1100px; margin: 0 auto; padding: 12px 16px; }
.topbar { background: #111; color: #fff; }
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; padding: 10px 16px; }
.topbar a, .topbar .me { color: #fff; text-decoration: none; margin-left: 14px; opacity: .9; font-size: 14px; }
.topbar a:hover { opacity: 1; text-decoration: underline; }
.topbar .brand { font-weight: 700; margin: 0; letter-spacing: .2px; }
h1 { font-size: 22px; margin: 8px 0 12px; }
h2 { font-size: 17px; margin: 0 0 10px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 16px; margin: 12px 0; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.error { color: var(--danger); background: #fde7e3; padding: 8px 10px; border-radius: 6px; }
.form { display: grid; gap: 12px; }
.form.inline { grid-template-columns: repeat(4, 1fr); gap: 8px; align-items: end; }
.form label { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }
input, select { width: 100%; padding: 10px 11px; font-size: 15px; border: 1px solid var(--border); border-radius: 8px; background: #fff; color: var(--text); }
input:focus, select:focus { outline: 2px solid var(--primary); outline-offset: -1px; border-color: var(--primary); }
.pin-input { font-size: 28px; letter-spacing: 12px; text-align: center; padding: 14px; }
.btn { display: inline-block; padding: 10px 16px; border-radius: 8px; border: 1px solid var(--border); background: #fff; color: var(--text); font-weight: 600; cursor: pointer; text-decoration: none; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); }
.btn.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn.big { padding: 14px 18px; font-size: 17px; }
.btn.small { padding: 5px 9px; font-size: 12px; }
table.data { width: 100%; border-collapse: collapse; font-size: 14px; }
table.data th, table.data td { padding: 7px 9px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
table.data th { background: #fafafa; font-size: 12px; text-transform: uppercase; color: var(--muted); letter-spacing: .3px; }
table.data td.num, table.data th.num { text-align: right; font-variant-numeric: tabular-nums; }
table.data tr.warn-row { background: #fff8e1; }
.tag { display: inline-block; padding: 2px 7px; border-radius: 4px; background: #eee; font-size: 11px; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); }
.tag.db { background: #fde7e3; color: var(--danger); }
.neg { color: var(--neg); font-weight: 600; }
.pos { color: var(--pos); }
.big-stat { padding: 10px 0; border-bottom: 1px solid var(--border); }
.big-stat .label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }
.big-stat .value { font-size: 18px; font-weight: 600; }
.open-punch { background: #eaf3ff; border: 1px solid #b8d1ff; padding: 14px; border-radius: 8px; }
.punch-list { list-style: none; padding: 0; margin: 8px 0 0; }
.punch-list li { padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.punch-list .time { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--muted); }
.punch-list .dot { color: var(--muted); margin: 0 6px; }
footer.wrap { padding-top: 8px; padding-bottom: 24px; }
@media (max-width: 600px) {
  .form.inline { grid-template-columns: 1fr 1fr; }
  table.data { font-size: 13px; }
  table.data th, table.data td { padding: 6px 5px; }
}