:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --ink: #17202b;
  --muted: #5d6b7c;
  --line: #dde3ea;
  --brand: #1f3a5f;
  --accent: #d9822b;
  --good: #2f7d4f;
  --warn: #b7791f;
  --bad: #c0392b;
  --tent-bg: #fff4e5;
  --book-bg: #e6f0fa;
  --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11161d;
    --card: #1a212b;
    --ink: #e6ebf1;
    --muted: #93a1b2;
    --line: #2c3643;
    --brand: #7fa7d6;
    --accent: #f0a050;
    --good: #5cc28a;
    --warn: #e3b04b;
    --bad: #ef6b5b;
    --tent-bg: #3a2c17;
    --book-bg: #1c2f45;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.45 "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
}
button, input, select, textarea { font: inherit; color: inherit; }

.topbar {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 10px 16px; background: var(--card); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 5;
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--brand); }
.tabs { display: flex; gap: 4px; }
.tab {
  border: 0; background: none; padding: 8px 14px; border-radius: 8px; cursor: pointer; color: var(--muted);
}
.tab.active { background: var(--brand); color: #fff; }
.data-actions { margin-left: auto; display: flex; gap: 6px; }

main { padding: 16px; max-width: 1280px; margin: 0 auto; }
.panel { display: none; }
.panel.active { display: block; }

.toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }
.summary { margin-left: auto; color: var(--muted); }

button.primary, button.ghost, button.danger, .filebtn {
  border-radius: 8px; padding: 7px 14px; cursor: pointer; border: 1px solid var(--line);
  background: var(--card);
}
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
button.danger { color: var(--bad); border-color: var(--bad); }
select, input, textarea {
  border: 1px solid var(--line); border-radius: 8px; padding: 7px 9px; background: var(--card); width: 100%;
}
select#statusFilter { width: auto; }
input.computed { background: transparent; font-weight: 700; }

.table-wrap { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow-x: auto; }
table.loads { width: 100%; border-collapse: collapse; }
table.loads th, table.loads td { padding: 9px 10px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
table.loads th { font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); }
table.loads tbody tr { cursor: pointer; }
table.loads tbody tr:hover { background: color-mix(in srgb, var(--brand) 7%, transparent); }
.num { text-align: right !important; font-variant-numeric: tabular-nums; }
.empty { padding: 24px; text-align: center; color: var(--muted); margin: 0; }

.pill { display: inline-block; padding: 2px 8px; border-radius: 99px; font-size: 12px; font-weight: 600; background: var(--line); }
.pill.lead, .pill.checked, .pill.accepted { background: var(--tent-bg); color: var(--warn); }
.pill.booked { background: var(--book-bg); color: var(--brand); }
.pill.done { color: var(--good); }
.pill.cancelled, .pill.expired { color: var(--muted); text-decoration: line-through; }
.flag { display: inline-block; font-size: 12px; padding: 1px 6px; border-radius: 6px; margin-right: 4px; }
.flag.bad { background: color-mix(in srgb, var(--bad) 15%, transparent); color: var(--bad); }
.flag.warn { background: color-mix(in srgb, var(--warn) 18%, transparent); color: var(--warn); }
.good { color: var(--good); font-weight: 600; }
.low { color: var(--bad); font-weight: 600; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 16px; max-width: 820px; }
.form-grid label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
.form-grid small { font-size: 11px; }
.form-grid h2 { margin: 0 0 4px; font-size: 18px; color: var(--ink); }
.span2 { grid-column: 1 / -1; }
.row-end { display: flex; align-items: center; gap: 8px; justify-content: flex-end; }
.spacer { flex: 1; }
.saved { color: var(--good); }
.calc { background: var(--bg); border-radius: 8px; padding: 10px 12px; font-size: 14px; }

dialog { border: 1px solid var(--line); border-radius: 14px; padding: 20px; background: var(--card); color: var(--ink); width: min(860px, 96vw); }
dialog::backdrop { background: rgba(0,0,0,.45); }

.week { display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; }
.day { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); min-height: 180px; padding: 8px; }
.day.today { border-color: var(--accent); }
.day h3 { margin: 0 0 6px; font-size: 13px; color: var(--muted); font-weight: 600; }
.ev { border-radius: 8px; padding: 6px 8px; margin-bottom: 6px; font-size: 13px; cursor: pointer; border-left: 4px solid; }
.ev.tentative { background: var(--tent-bg); border-color: var(--warn); border-style: dashed; border-left-style: solid; }
.ev.booked { background: var(--book-bg); border-color: var(--brand); }
.ev.clash { outline: 2px solid var(--bad); }
.ev small { color: var(--muted); display: block; }
.legend { margin-left: auto; color: var(--muted); font-size: 13px; display: flex; gap: 10px; align-items: center; }
.sw { display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-right: 4px; vertical-align: -1px; }
.sw.tentative { background: var(--tent-bg); border: 1px dashed var(--warn); }
.sw.booked { background: var(--book-bg); border: 1px solid var(--brand); }
.sw.clash { outline: 2px solid var(--bad); background: transparent; }

.sync { font-size: 12px; color: var(--muted); align-self: center; margin-right: 4px; }
.sync.online { color: var(--good); }
.sync.offline { color: var(--warn); }
.muted { color: var(--muted); }
.audit { font-size: 12px; }
.auth { position: fixed; inset: 0; background: var(--bg); display: grid; place-items: center; z-index: 20; padding: 16px; }
.auth[hidden] { display: none; }
.auth-card { width: min(380px, 100%); display: flex; flex-direction: column; gap: 12px; text-align: center; align-items: stretch; }
.auth-card img { align-self: center; }
.auth-card h2 { margin: 0; font-size: 20px; color: var(--brand); }
.auth-card p { margin: 0; }
.auth-card label { display: flex; flex-direction: column; gap: 4px; text-align: left; font-size: 13px; color: var(--muted); }
.auth-card label[hidden] { display: none; }
.auth-msg { min-height: 1.2em; font-size: 13px; color: var(--bad); }
.auth-msg.ok { color: var(--good); }

@media (max-width: 760px) {
  .form-grid { grid-template-columns: 1fr; }
  .week { grid-template-columns: 1fr; }
  .day { min-height: auto; }
  .data-actions { margin-left: 0; }
}