:root {
  --bg: #f4f6fa;
  --card: #ffffff;
  --ink: #1d2433;
  --brand: #1f3a5f;
  --ok: #2e7d32;
  --soon: #b26a00;
  --bad: #c62828;
  --muted: #667085;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  padding-bottom: env(safe-area-inset-bottom);
}
header {
  background: var(--brand);
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: calc(12px + env(safe-area-inset-top)) 16px 12px;
}
header h1 { font-size: 18px; margin: 0; }
main { max-width: 640px; margin: 0 auto; padding: 16px; }
h2 { margin: 4px 0 12px; }
form { display: flex; flex-direction: column; gap: 12px; }
label { display: flex; flex-direction: column; gap: 4px; font-size: 14px; }
input, select, textarea, button {
  font: inherit;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #b8bfcc;
  background: #fff;
}
button {
  background: var(--brand);
  color: #fff;
  border: none;
  cursor: pointer;
}
button.ghost { background: transparent; color: var(--brand); border: 1px solid var(--brand); }
button.danger { background: var(--bad); }
.row, .toolbar { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.toolbar input { flex: 1; }
.file-btn {
  display: inline-block;
  padding: 10px;
  border: 1px solid var(--brand);
  border-radius: 8px;
  color: var(--brand);
  cursor: pointer;
}
#doc-list { list-style: none; padding: 0; margin: 0; }
.card {
  background: var(--card);
  border-left: 6px solid #ccc;
  border-radius: 10px;
  padding: 12px;
  margin: 8px 0;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-shadow: 0 1px 2px #0002;
}
.card.ok { border-color: var(--ok); }
.card.soon { border-color: var(--soon); }
.card.expired { border-color: var(--bad); }
.badge { font-size: 13px; font-weight: 600; }
.alert {
  background: #fff3e0;
  border: 1px solid var(--soon);
  padding: 10px;
  border-radius: 8px;
  margin-bottom: 12px;
}
.warn, .error { color: var(--bad); }
.hint { color: var(--muted); font-size: 14px; }
.hidden { display: none !important; }
.backup { margin-top: 24px; background: var(--card); padding: 12px; border-radius: 10px; }
dl { background: var(--card); padding: 12px; border-radius: 10px; }
dt { font-weight: 600; margin-top: 8px; color: var(--muted); font-size: 13px; }
dd { margin: 2px 0 0; }