/* Flightbook — one plain stylesheet. Desktop-first, utilitarian, readable. */
:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --border: #d9dee5;
  --text: #1c2733;
  --muted: #5b6b7c;
  --accent: #1d4ed8;
  --accent-fg: #ffffff;
  --danger: #b42318;
  --danger-bg: #fef3f2;
  --ok: #067647;
  --ok-bg: #ecfdf3;
  --warn: #b54708;
  --warn-bg: #fffaeb;
  --radius: 8px;
  --gap: 16px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 15px/1.5 system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header / nav */
header.site {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
header.site .wrap {
  max-width: 1080px; margin: 0 auto; padding: 0 20px;
  display: flex; align-items: center; gap: 20px; height: 56px;
}
header.site .brand { font-weight: 700; font-size: 17px; color: var(--text); }
header.site nav { display: flex; gap: 16px; flex: 1; }
header.site nav a { color: var(--muted); font-weight: 500; }
header.site nav a.active, header.site nav a:hover { color: var(--text); text-decoration: none; }
header.site .who { color: var(--muted); font-size: 13px; }

main { max-width: 1080px; margin: 0 auto; padding: 24px 20px 64px; }

h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 17px; margin: 24px 0 8px; }
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.subtitle { color: var(--muted); margin: 0 0 16px; }

/* Cards / panels */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px; margin-bottom: var(--gap);
}

/* Tables */
table { width: 100%; border-collapse: collapse; background: var(--surface); }
.table-wrap { border: 1px solid var(--border); border-radius: var(--radius); overflow-x: auto; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); background: #fbfcfd; }
tr:last-child td { border-bottom: none; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

/* Forms */
form .field { margin-bottom: 14px; }
label { display: block; font-weight: 600; font-size: 13px; margin-bottom: 4px; }
label .hint { font-weight: 400; color: var(--muted); }
input[type=text], input[type=number], input[type=date], input[type=search],
select, textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border);
  border-radius: 6px; font: inherit; background: #fff; color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
textarea { min-height: 72px; resize: vertical; }
.row { display: flex; gap: var(--gap); flex-wrap: wrap; }
.row > .field { flex: 1; min-width: 180px; }
fieldset { border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; margin: 0 0 16px; }
legend { font-weight: 600; padding: 0 6px; }
.checks label { display: flex; align-items: center; gap: 8px; font-weight: 400; }
.checks input { width: auto; }

/* Buttons */
.btn, button {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  padding: 8px 14px; border-radius: 6px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); font: inherit; font-weight: 600;
}
.btn:hover, button:hover { background: #f0f2f5; text-decoration: none; }
.btn.primary, button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }
.btn.primary:hover, button.primary:hover { background: #1a43bf; }
.btn.danger, button.danger { color: var(--danger); border-color: #f0c4bf; background: var(--danger-bg); }
.btn.small { padding: 4px 10px; font-size: 13px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

/* Flash + badges */
.flash { padding: 10px 14px; border-radius: 6px; margin-bottom: 16px; border: 1px solid; }
.flash.ok { background: var(--ok-bg); border-color: #abefc6; color: var(--ok); }
.flash.error { background: var(--danger-bg); border-color: #f0c4bf; color: var(--danger); }
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px;
  font-weight: 600; border: 1px solid var(--border); color: var(--muted); background: #fbfcfd;
}
.badge.ok { color: var(--ok); background: var(--ok-bg); border-color: #abefc6; }
.badge.warn { color: var(--warn); background: var(--warn-bg); border-color: #fedf89; }
.badge.danger { color: var(--danger); background: var(--danger-bg); border-color: #f0c4bf; }
.badge.muted { color: var(--muted); }

.muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.empty { color: var(--muted); padding: 24px; text-align: center; }
.stack > * + * { margin-top: 8px; }

/* Auth pages */
.auth-wrap { max-width: 420px; margin: 8vh auto; }
.auth-wrap .card { text-align: center; }
.token-box {
  font-family: ui-monospace, monospace; background: #f0f2f5; border: 1px dashed var(--border);
  border-radius: 6px; padding: 12px; word-break: break-all; margin: 12px 0; font-size: 13px;
}
.dashboard-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap); }
@media (max-width: 720px) { .dashboard-grid { grid-template-columns: 1fr; } }