:root {
  --bg: #f6f7f9; --card: #ffffff; --text: #1d2330; --muted: #5f6b7a; --border: #dde2e8;
  --accent: #1f5fbf; --error: #b42318; --ok: #157f3b; --warn: #a15c07;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #12151b; --card: #1b2029; --text: #e6e9ef; --muted: #9aa5b4; --border: #2c3340;
          --accent: #6ea0ff; --error: #ff8a80; --ok: #6fd28f; --warn: #f0b45a; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; background: var(--bg); color: var(--text); }
.topbar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between;
          padding: 12px 16px; background: var(--card); border-bottom: 1px solid var(--border); }
.brand { font-weight: 700; color: var(--text); text-decoration: none; }
nav { display: flex; gap: 16px; align-items: center; }
nav form { margin: 0; }
a, button.link { color: var(--accent); }
button.link { background: none; border: 0; padding: 0; font: inherit; cursor: pointer; text-decoration: underline; }
main { max-width: 960px; margin: 24px auto; padding: 0 16px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 20px; }
.card.narrow { max-width: 420px; margin: 0 auto; }
h1 { margin-top: 0; font-size: 1.5rem; }
.muted { color: var(--muted); }
.error { color: var(--error); }
.notice { padding: 8px 12px; border-left: 4px solid var(--accent); background: var(--card); }
label { display: block; margin: 12px 0; }
input { display: block; width: 100%; padding: 8px 10px; margin-top: 4px; font: inherit; color: var(--text);
        background: var(--bg); border: 1px solid var(--border); border-radius: 6px; }
button[type=submit]:not(.link) { padding: 9px 18px; font: inherit; color: #fff; background: var(--accent);
                                 border: 0; border-radius: 6px; cursor: pointer; }
.limits { display: flex; flex-wrap: wrap; gap: 8px 20px; padding: 0; list-style: none; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 8px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
td:first-child { white-space: normal; word-break: break-all; }
.status { font-size: .9em; }
.status-clean, .status-released { color: var(--ok); }
.status-infected, .status-error, .status-blocked { color: var(--error); }
.status-unscanned, .status-uploading, .status-received { color: var(--warn); }