:root {
  --ink: #1b2533;
  --muted: #5d6b7e;
  --line: #dde3ea;
  --bg: #f5f7fa;
  --card: #ffffff;
  --brand: #0b5cad;
  --brand-dark: #084785;
  --good: #1f7a4a;
  --good-bg: #e5f4ec;
  --bad: #b3261e;
  --bad-bg: #fbe9e7;
  --radius: 8px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: flex; flex-direction: column; }
[hidden] { display: none !important; }
a { color: var(--brand); }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.85em; word-break: break-all; }
h1 { font-size: 1.6rem; margin: 0 0 0.25rem; }
h2 { font-size: 1.15rem; margin: 1.5rem 0 0.75rem; }
h3 { font-size: 1rem; margin: 1.25rem 0 0.5rem; color: var(--muted); }
.card h2, .form h2 { margin-top: 0; }

.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  padding: 0.75rem 1.5rem; background: #fff; border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: baseline; gap: 0.5rem; }
.brand-mark { font-weight: 700; font-size: 1.25rem; color: var(--brand); }
.brand-sub { color: var(--muted); }
.nav { display: flex; align-items: center; gap: 0.25rem; flex-wrap: wrap; }
.nav-link { background: none; border: 0; padding: 0.5rem 0.75rem; border-radius: var(--radius); font: inherit; color: var(--ink); cursor: pointer; }
.nav-link:hover { background: var(--bg); }
.nav-link.active { background: #e8f0fa; color: var(--brand); font-weight: 600; }
.user-email { color: var(--muted); font-size: 0.9rem; margin: 0 0.5rem 0 1rem; }

.main { flex: 1; width: 100%; max-width: 1100px; margin: 0 auto; padding: 2rem 1.5rem 3rem; }
.footer { display: flex; justify-content: space-between; gap: 1rem; padding: 1rem 1.5rem; color: var(--muted); font-size: 0.85rem; border-top: 1px solid var(--line); background: #fff; }

.signin { max-width: 460px; margin: 4rem auto; text-align: center; background: var(--card); padding: 2.5rem 2rem; border: 1px solid var(--line); border-radius: 12px; }
.signin .btn { margin: 1rem 0; min-width: 160px; }

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.error { color: var(--bad); }
.notice { background: #fff8e1; border: 1px solid #f2d78a; padding: 0.75rem 1rem; border-radius: var(--radius); }
.right { text-align: right; }
.nowrap { white-space: nowrap; }
.break { word-break: break-all; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.35rem; border-radius: var(--radius); border: 1px solid transparent; padding: 0.55rem 1rem; font: inherit; font-weight: 600; cursor: pointer; }
.btn:disabled { opacity: 0.55; cursor: default; }
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--brand-dark); }
.btn-secondary { background: #fff; color: var(--brand); border-color: var(--brand); }
.btn-quiet { background: none; color: var(--muted); border-color: var(--line); padding: 0.4rem 0.8rem; }
.btn-link { background: none; border: 0; color: var(--brand); padding: 0.25rem 0.4rem; font-weight: 500; }
.btn.small { padding: 0.3rem 0.6rem; font-size: 0.85rem; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 1.25rem 1.5rem; margin: 1rem 0; }
.product { margin-top: 1.5rem; }
.latest-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }
.version { font-size: 1.35rem; font-weight: 700; margin: 0.35rem 0; }
.checksum { margin-top: 0.75rem; padding-top: 0.75rem; border-top: 1px solid var(--line); }
.badge { display: inline-block; padding: 0.1rem 0.5rem; border-radius: 999px; background: #eef1f5; color: var(--muted); font-size: 0.75rem; font-weight: 600; }
.badge-good { background: var(--good-bg); color: var(--good); }
.badge-bad { background: var(--bad-bg); color: var(--bad); }

.table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: 12px; }
table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { padding: 0.6rem 0.75rem; text-align: left; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { background: #f9fafc; font-weight: 600; color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.02em; }
tbody tr:last-child td { border-bottom: 0; }
tr.disabled td { color: var(--muted); }
td input[type=text], td input[type=url], td input[type=date] { width: 100%; }

.form label { display: flex; flex-direction: column; gap: 0.3rem; font-weight: 600; font-size: 0.9rem; margin-bottom: 0.75rem; }
.form .checks label, .checks label { flex-direction: row; align-items: center; font-weight: 500; }
.checks { display: flex; gap: 1.5rem; flex-wrap: wrap; margin-bottom: 0.75rem; }
input[type=text], input[type=email], input[type=url], input[type=date], input[type=password], select {
  font: inherit; padding: 0.5rem 0.6rem; border: 1px solid #c4cdd8; border-radius: 6px; background: #fff; color: var(--ink); min-width: 0;
}
input:focus, select:focus, button:focus-visible { outline: 2px solid #8bb6e6; outline-offset: 1px; }
.grid2, .grid3 { display: grid; gap: 0 1rem; }
.grid2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.form-row { display: flex; align-items: flex-end; gap: 0.75rem; flex-wrap: wrap; }
.form-row label { margin-bottom: 0; }
progress { width: 100%; margin-bottom: 0.75rem; }
.list-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }

.tabs { display: flex; gap: 0.25rem; border-bottom: 1px solid var(--line); margin: 1rem 0 0.5rem; flex-wrap: wrap; }
.tab { background: none; border: 0; border-bottom: 2px solid transparent; padding: 0.6rem 1rem; font: inherit; color: var(--muted); cursor: pointer; }
.tab.active { color: var(--brand); border-bottom-color: var(--brand); font-weight: 600; }

.qr { display: block; margin: 0.75rem 0; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.steps { padding-left: 1.25rem; }

.toast { position: fixed; bottom: 1.25rem; left: 50%; transform: translateX(-50%); background: var(--ink); color: #fff; padding: 0.7rem 1.1rem; border-radius: var(--radius); max-width: 90vw; z-index: 10; }
.toast-error { background: var(--bad); }

@media (max-width: 720px) {
  .grid2, .grid3 { grid-template-columns: 1fr; }
  .main { padding: 1.25rem 1rem 2rem; }
  .user-email { display: none; }
}