* { box-sizing: border-box; }
:root {
  --bg: #f5f3ef; --card: #ffffff; --ink: #2b2620; --muted: #8a8073;
  --accent: #8a5a2b; --accent-ink: #fff; --line: #e4ded4;
  --ok: #3d7a44; --warn: #b58900; --bad: #b0413e;
}
body { margin: 0; font-family: system-ui, Segoe UI, sans-serif; background: var(--bg); color: var(--ink); }
header { background: var(--accent); color: var(--accent-ink); padding: 12px 16px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
header h1 { font-size: 1.1rem; margin: 0; }
header nav a { color: #f3e5d5; text-decoration: none; margin-right: 12px; font-size: .95rem; }
header nav a:hover { color: #fff; text-decoration: underline; }
main { max-width: 1100px; margin: 0 auto; padding: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin-bottom: 16px; }
h2 { font-size: 1.05rem; margin: 0 0 12px; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; }
tr.clickable { cursor: pointer; }
tr.clickable:hover { background: #faf7f2; }
.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: .78rem; font-weight: 600; white-space: nowrap; }
.badge.available { background: #e2efe3; color: var(--ok); }
.badge.checked_out { background: #fdf3d7; color: #8a6d00; }
.badge.maintenance { background: #fbe4e3; color: var(--bad); }
.badge.retired { background: #eee; color: var(--muted); }
.badge.overdue { background: var(--bad); color: #fff; }
.badge.cat { background: #efe9df; color: var(--accent); }
button, .btn { background: var(--accent); color: var(--accent-ink); border: 0; border-radius: 8px; padding: 9px 16px; font-size: .95rem; cursor: pointer; text-decoration: none; display: inline-block; }
button:hover, .btn:hover { filter: brightness(1.1); }
button.secondary { background: #efe9df; color: var(--ink); }
button.danger { background: var(--bad); }
input, select, textarea { width: 100%; padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px; font-size: .95rem; background: #fff; color: var(--ink); }
label { display: block; font-size: .8rem; color: var(--muted); margin: 10px 0 4px; font-weight: 600; }
.grid { display: grid; gap: 10px; }
.grid.cols2 { grid-template-columns: 1fr 1fr; }
.grid.cols3 { grid-template-columns: 1fr 1fr 1fr; }
@media (max-width: 640px) { .grid.cols2, .grid.cols3 { grid-template-columns: 1fr; } }
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.toolbar input, .toolbar select { width: auto; }
.toolbar input[type=search] { flex: 1; min-width: 160px; }
.muted { color: var(--muted); font-size: .85rem; }
.empty { color: var(--muted); padding: 18px; text-align: center; }
dialog { border: 1px solid var(--line); border-radius: 12px; padding: 20px; width: min(480px, 92vw); }
dialog::backdrop { background: rgba(40,30,20,.4); }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }
.statgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; margin-bottom: 16px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
.stat .n { font-size: 1.5rem; font-weight: 700; }
.stat .l { color: var(--muted); font-size: .8rem; }
.stat.alert .n { color: var(--bad); }