:root {
  --bg: #f5f6f8; --fg: #15181d; --muted: #667080; --card: #fff; --line: #dfe3e8;
  --accent: #0b63ce; --ok: #137a3a; --warn: #a15c00; --danger: #b42318;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111418; --fg: #e8eaed; --muted: #9aa3ad; --card: #1a1e24; --line: #2b313a;
          --accent: #5aa2ff; --ok: #4cc27a; --warn: #f0a33a; --danger: #ff6b5e; }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--fg);
       font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
       padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left); }
.top { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; justify-content: space-between;
       padding: 12px 16px; border-bottom: 1px solid var(--line); background: var(--card); position: sticky; top: 0; z-index: 1; }
nav { display: flex; flex-wrap: wrap; gap: 4px 14px; align-items: center; }
nav a { color: var(--fg); text-decoration: none; padding: 4px 0; }
nav a.active { color: var(--accent); font-weight: 600; }
main { max-width: 980px; margin: 0 auto; padding: 16px; }
a { color: var(--accent); }
h2 { margin: 8px 0 12px; font-size: 20px; } h3 { margin: 16px 0 8px; font-size: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; margin: 0 0 12px; }
.narrow { max-width: 420px; margin: 24px auto; }
.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.bar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: space-between; }
.actions { display: grid; gap: 8px; margin-top: 10px; }
label { display: grid; gap: 4px; margin: 8px 0; }
label.ack { display: flex; gap: 8px; align-items: flex-start; color: var(--warn); }
input, select, textarea, button { font: inherit; color: inherit; }
input, select, textarea { width: 100%; max-width: 100%; padding: 9px 10px; border: 1px solid var(--line);
                          border-radius: 8px; background: var(--bg); }
.row input { width: auto; flex: 1 1 200px; }
input[type=checkbox] { width: auto; }
button { padding: 9px 14px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); cursor: pointer; }
button:disabled { opacity: .5; cursor: wait; }
button.ok { background: var(--ok); color: #fff; border-color: transparent; }
button.danger { background: var(--danger); color: #fff; border-color: transparent; }
button.link { border: 0; background: none; color: var(--accent); padding: 4px 0; }
.muted { color: var(--muted); } .small { font-size: 12px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; overflow-wrap: anywhere; }
.error { color: var(--danger); } .warn { color: var(--warn); } .ok { color: var(--ok); }
.pill { display: inline-block; padding: 1px 8px; border-radius: 99px; font-size: 12px; border: 1px solid var(--line); }
.pill.pending { color: var(--warn); } .pill.approved { color: var(--ok); }
.pill.rejected, .pill.revoked, .pill.expired { color: var(--danger); } .pill.warn { color: var(--warn); }
.badge { background: var(--danger); color: #fff; border-radius: 99px; padding: 0 7px; font-size: 12px; }
ul.flags { margin: 8px 0; padding-left: 18px; } ul.flags li.warn { color: var(--warn); } ul.flags li.ok { color: var(--ok); }
table { width: 100%; border-collapse: collapse; display: block; overflow-x: auto; }
th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
tr.click { cursor: pointer; } tr.click:hover { background: var(--bg); }
img.qr { width: 200px; height: 200px; background: #fff; padding: 8px; border-radius: 8px; display: block; margin: 8px 0; }
code.secret { display: block; word-break: break-all; padding: 8px; background: var(--bg); border-radius: 6px; }
#toast { position: fixed; left: 50%; bottom: calc(16px + env(safe-area-inset-bottom)); transform: translateX(-50%);
         background: var(--fg); color: var(--bg); padding: 10px 16px; border-radius: 10px; max-width: calc(100% - 32px); }
#toast.error { background: var(--danger); color: #fff; }
a.button { display: inline-block; padding: 12px 16px; border-radius: 10px; background: var(--accent); color: #fff;
           text-decoration: none; font-weight: 600; margin: 4px 0 8px; }
.title-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex: 1 1 auto; }
button.refresh { width: 40px; height: 40px; padding: 0; border-radius: 50%; font-size: 22px; line-height: 1;
                 display: inline-flex; align-items: center; justify-content: center; background: var(--bg); }
button.refresh.spinning { animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.req-section { margin: 0 0 20px; }
.req-section h3 { display: flex; align-items: center; gap: 8px; }
.count { font-size: 12px; padding: 1px 8px; border-radius: 99px; border: 1px solid var(--line); font-weight: 600; }
.count.pending { color: var(--warn); } .count.approved { color: var(--ok); } .count.rejected { color: var(--danger); }
.table-card { padding: 4px 8px; }
.table-card td { font-size: 14px; }
.nowrap { white-space: nowrap; }
table.req-table { display: table; width: 100%; }
.table-card { overflow-x: auto; }
.req-table th, .req-table td { padding: 8px 4px; font-size: 13px; }
.req-table td.mono { font-size: 12px; }
.arrow { display: inline-block; width: 1em; color: var(--muted); }
tr.history-row > td { background: var(--bg); padding: 8px 10px; }
.history ol { margin: 0 0 8px; padding-left: 20px; }
.history li { margin: 0 0 10px; }
.history li .row { gap: 6px; }
.vin-line { display: flex; align-items: center; gap: 2px; white-space: nowrap; font-size: 13px; }
.center { text-align: center; }
.history { overflow-wrap: anywhere; }
.history .mono { overflow-wrap: anywhere; }