:root {
  --brand: #1e3a5f;
  --brand-light: #dbe7f5;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --bg: #f4f6fa;
  --panel: #ffffff;
  --ok-bg: #ecfdf5;
  --ok-line: #a7f3d0;
  --ok-ink: #065f46;
  --bad-bg: #fef2f2;
  --bad-line: #fecaca;
  --bad-ink: #991b1b;
  --warn-bg: #fffbeb;
  --warn-line: #fde68a;
  --warn-ink: #92400e;
  --amber: #fff7db;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 14px;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.45;
}
.tnum { font-variant-numeric: tabular-nums; }
a { color: var(--brand); }

.topbar {
  background: var(--brand);
  color: #fff;
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.topbar .brand { font-weight: 600; font-size: 16px; display: flex; align-items: center; gap: 10px; }
.topbar .brand img { width: 22px; height: 22px; }
.topbar nav { display: flex; gap: 6px; }
.topbar nav button {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 8px;
  padding: 5px 12px;
  font-size: 13px;
  cursor: pointer;
}
.topbar nav button:hover, .topbar nav button.active { background: rgba(255,255,255,.14); }

.page { max-width: 1120px; margin: 0 auto; padding: 20px 24px 60px; }
.page-title { margin: 0 0 4px; font-size: 22px; font-weight: 600; }
.page-sub { margin: 0 0 18px; color: var(--muted); }
.stack > * + * { margin-top: 16px; }
.stack-sm > * + * { margin-top: 8px; }

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 16px 20px; }
.panel.flush { padding: 0; overflow: auto; }
.panel-title { font-weight: 600; margin-bottom: 8px; }
.hint { color: var(--muted); font-size: 12px; }
.small { font-size: 12px; }

.alert { border-radius: 10px; padding: 10px 16px; border: 1px solid; }
.alert.ok { background: var(--ok-bg); border-color: var(--ok-line); color: var(--ok-ink); }
.alert.bad { background: var(--bad-bg); border-color: var(--bad-line); color: var(--bad-ink); }
.alert.warn { background: var(--warn-bg); border-color: var(--warn-line); color: var(--warn-ink); }
.alert .sub { opacity: .8; font-size: 12px; margin-top: 4px; }

.btn {
  border: 1px solid #cbd5e1;
  background: #fff;
  color: #334155;
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
}
.btn:hover { background: #f8fafc; }
.btn:disabled { opacity: .4; cursor: not-allowed; }
.btn.primary { background: var(--brand); color: #fff; border-color: var(--brand); padding: 8px 16px; }
.btn.primary:hover { opacity: .92; background: var(--brand); }
.btn.success { background: #059669; color: #fff; border-color: #059669; padding: 8px 16px; text-decoration: none; display: inline-block; }
.btn.danger { color: #b91c1c; }
.link { background: none; border: none; padding: 0; color: var(--brand); font-size: 12px; font-weight: 500; cursor: pointer; }
.link:hover { text-decoration: underline; }
.link:disabled { opacity: .4; cursor: not-allowed; }
.link.danger { color: #dc2626; }
.row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.row.start { align-items: flex-start; }
.grow { flex: 1; }

input[type="text"], input:not([type]), textarea, select {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  padding: 6px 8px;
  font: inherit;
  font-size: 13px;
  background: #fff;
  color: var(--ink);
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(30,58,95,.15); }
select.auto { width: auto; }
textarea.mono { font-family: Consolas, "Cascadia Mono", monospace; font-size: 12px; }
.right { text-align: right; }

.stepper { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0; font-size: 12px; font-weight: 500; }
.stepper li { border-radius: 999px; padding: 4px 12px; background: #e2e8f0; color: var(--muted); }
.stepper li.done { background: var(--brand); color: #fff; }

.drop { cursor: pointer; border: 2px dashed #cbd5e1; border-radius: 12px; padding: 20px 16px; text-align: center; background: #f8fafc; transition: .15s; }
.drop:hover { border-color: #94a3b8; background: #f1f5f9; }
.drop.active { border-color: var(--brand); background: var(--brand-light); }
.drop .t { font-weight: 500; color: #334155; }
.drop .h { color: var(--muted); font-size: 12px; margin-top: 4px; }
.files { list-style: none; padding: 0; margin: 8px 0 0; }
.files li { display: flex; justify-content: space-between; gap: 12px; border: 1px solid var(--line); border-radius: 8px; background: #fff; padding: 6px 12px; margin-top: 4px; }
.files .name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.label { font-weight: 500; color: #334155; margin-bottom: 4px; }
.label span { font-weight: 400; color: var(--muted); }

table.grid { width: 100%; border-collapse: collapse; font-size: 13px; }
table.grid th { text-align: left; padding: 6px 8px; font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; background: #fff; }
table.grid thead th { position: sticky; top: 0; border-bottom: 1px solid var(--line); }
table.grid td { padding: 6px 8px; vertical-align: top; border-bottom: 1px solid #f1f5f9; }
table.grid tr.alt:nth-child(odd) td { background: #f8fafc; }
table.grid tr.suspect td, table.grid tr.undet td { background: var(--amber); }
table.grid td.num, table.grid th.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
table.grid td.nowrap { white-space: nowrap; }
table.grid td.muted { color: var(--muted); }
.scroll-60 { max-height: 60vh; }
.scroll-50 { max-height: 50vh; }
ul.plain { margin: 0; padding-left: 18px; }
ul.plain li + li { margin-top: 2px; }

.spinner { display: inline-block; width: 22px; height: 22px; border: 2px solid #cbd5e1; border-top-color: var(--brand); border-radius: 50%; animation: spin .8s linear infinite; margin-bottom: 10px; }
@keyframes spin { to { transform: rotate(360deg); } }
.center { text-align: center; color: #475569; padding: 40px 0; }

.settings-grid { display: grid; grid-template-columns: 180px 1fr; gap: 10px 16px; align-items: center; }
.settings-grid .k { color: #334155; font-weight: 500; }
.radio { display: flex; gap: 8px; align-items: flex-start; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; cursor: pointer; }
.radio.on { border-color: var(--brand); background: var(--brand-light); }
.radio input { margin-top: 3px; }
.radio b { display: block; }
.kbd { font-family: Consolas, monospace; background: #f1f5f9; padding: 1px 5px; border-radius: 4px; font-size: 12px; }
.footer { color: #94a3b8; font-size: 12px; margin-top: 24px; }

/* ---- ZDR Tools additions */
.signin { max-width: 440px; margin: 60px auto; padding: 0 16px; text-align: center; }
.signin-brand { font-size: 20px; font-weight: 600; color: var(--brand); display: flex; align-items: center; justify-content: center; gap: 10px; margin-bottom: 20px; }
.signin-brand img { width: 28px; height: 28px; }
.signin .cl-rootBox, .signin .cl-card { margin: 0 auto; }
.user-button { display: flex; align-items: center; margin-left: 6px; }
.tool-card { display: block; width: 100%; text-align: left; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 16px 20px; cursor: pointer; font: inherit; color: var(--ink); }
.tool-card:hover { border-color: var(--brand); background: var(--brand-light); }
.tool-card b { display: block; font-size: 16px; margin-bottom: 4px; }
.tool-card span { color: var(--muted); }