:root {
  --ink: #12151c;
  --body: #3d4451;
  --muted: #6b7280;
  --navy: #12306b;
  --navy-soft: #e8edf7;
  --line: #e4e7ec;
  --canvas: #f6f7f9;
  --surface: #ffffff;
  --verified: #0f6d43;
  --warn: #8a5a00;
  --danger: #9b1c1c;
  --sans: "Segoe UI", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; font-family: var(--sans); color: var(--ink); background: var(--canvas); }
body { display: grid; grid-template-columns: 220px 1fr; min-width: 1024px; }
aside {
  background: var(--navy);
  color: #fff;
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.brand { font-weight: 700; letter-spacing: 0.04em; margin: 0 0 16px; }
nav { display: flex; flex-direction: column; gap: 4px; }
nav button {
  appearance: none;
  border: 0;
  background: transparent;
  color: #c7d2e8;
  text-align: left;
  padding: 10px 12px;
  border-radius: 8px;
  font: inherit;
  cursor: pointer;
}
nav button.on, nav button:hover { background: rgba(255,255,255,0.12); color: #fff; }
.who { margin-top: auto; font-size: 12px; color: #a8b6d8; }
main { padding: 28px 36px 64px; overflow: auto; }
header { display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; margin-bottom: 24px; }
h1 { margin: 0 0 6px; font-size: 28px; }
.sub, .lede { margin: 0 0 16px; color: var(--muted); max-width: 72ch; line-height: 1.45; }
.auth { display: flex; gap: 8px; align-items: center; }
.auth input, .compose input, .compose textarea, .compose select {
  font: inherit;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  min-width: 180px;
}
.auth button, .compose button, table button {
  font: inherit;
  font-weight: 600;
  border: 0;
  border-radius: 8px;
  padding: 8px 12px;
  background: var(--navy);
  color: #fff;
  cursor: pointer;
}
.pane { display: none; }
.pane.on { display: block; }
.stats { display: flex; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.stat {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 16px;
  min-width: 140px;
}
.stat b { display: block; font-size: 22px; }
table { width: 100%; border-collapse: collapse; background: var(--surface); }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; font-size: 14px; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
tr:hover td { background: var(--navy-soft); }
.fill { font-variant-numeric: tabular-nums; font-weight: 700; }
.low { color: var(--danger); }
.mid { color: var(--warn); }
.ok { color: var(--verified); }
.compose { display: grid; gap: 8px; max-width: 640px; margin-bottom: 24px; }
.compose textarea { width: 100%; }
.log { list-style: none; padding: 0; margin: 0; max-width: 720px; }
.log li { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; margin-bottom: 8px; }
.err { color: var(--danger); font-size: 13px; }
.nav-mail { color: #fff; text-decoration: none; font-weight: 600; padding: 8px 12px; border-radius: 8px; background: rgba(255,255,255,0.12); display: inline-block; margin-bottom: 8px; }
.auth .nav-mail { background: var(--navy); }