:root {
  --bg: #f6f7f9; --card: #fff; --text: #16202b; --muted: #5b6876; --line: #d9dee4;
  --accent: #0b6bcb; --danger: #b3261e; --warn-bg: #fff4d6; --ok-bg: #e3f4e8;
}
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.45 system-ui, sans-serif; background: var(--bg); color: var(--text); }
main { max-width: 1000px; margin: 0 auto; padding: 16px; }
h1 { font-size: 1.5rem; margin: 8px 0 16px; }
h2 { font-size: 1.1rem; margin: 24px 0 8px; }
a { color: var(--accent); }
.muted { color: var(--muted); }

.nav { display: flex; gap: 4px; background: var(--card); border-bottom: 1px solid var(--line); padding: 0 12px; }
.nav a { padding: 14px 12px; text-decoration: none; color: var(--text); font-weight: 600; }

.form { display: grid; gap: 12px; max-width: 480px; margin-bottom: 24px; }
.form label { display: grid; gap: 4px; font-weight: 600; }
input, select, button, .button { font: inherit; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; min-height: 44px; }
input, select { background: #fff; width: 100%; }
button, .button { background: var(--accent); color: #fff; border-color: var(--accent); font-weight: 600; cursor: pointer; text-decoration: none; display: inline-block; text-align: center; }
button.secondary, .button.secondary { background: #fff; color: var(--text); border-color: var(--line); }
button.danger { background: #fff; color: var(--danger); border-color: var(--danger); }
.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 12px 0; }
.actions h1 { margin: 0 auto 0 0; }
.actions form { display: flex; gap: 8px; margin: 0; }
.error { color: var(--danger); margin: 0; font-weight: 600; }
.notice { background: var(--warn-bg); padding: 10px 12px; border-radius: 8px; }

table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line); border-radius: 8px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: .85rem; color: var(--muted); }
tr.overdue td { background: var(--warn-bg); }
.tag { display: inline-block; padding: 2px 8px; border-radius: 999px; background: var(--ok-bg); font-size: .85rem; }
.tag.declined { background: var(--warn-bg); }
.key { font-family: ui-monospace, monospace; word-break: break-all; background: var(--card); border: 1px solid var(--line); padding: 10px; border-radius: 8px; }
.qr { width: 240px; height: 240px; image-rendering: pixelated; }
#map { position: relative; z-index: 0; height: 60vh; border: 1px solid var(--line); border-radius: 8px; }
.stale { opacity: .5; }

@media (max-width: 640px) {
  body { padding-bottom: 64px; }
  .nav { position: fixed; bottom: 0; left: 0; right: 0; z-index: 1000; border-top: 1px solid var(--line); border-bottom: 0; padding: 0; }
  .nav a { flex: 1; text-align: center; padding: 16px 4px; }
  table, tbody, tr, td { display: block; border: 0; }
  thead { display: none; }
  table { background: none; }
  tr { background: var(--card); border: 1px solid var(--line); border-radius: 8px; margin-bottom: 10px; padding: 6px 0; }
  td { padding: 4px 12px; border: 0; }
  td[data-label]::before { content: attr(data-label) ": "; color: var(--muted); font-size: .85rem; }
  tr.overdue { background: var(--warn-bg); }
  tr.overdue td { background: none; }
  .actions form, .actions button, .actions .button { width: 100%; }
}