:root {
  --bg: #0b0b0c;
  --surface: #0f0f11;
  --surface-2: #131316;
  --border: #26262b;
  --text: #d3d3d6;
  --muted: #74747b;
  --bright: #f2f2f4;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  line-height: 1.5;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--bright); }

.layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  min-height: 100vh;
}

/* --- sidebar --- */
.sidebar {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 16px 0;
}
.brand {
  padding: 0 18px 16px;
  color: var(--bright);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 12px;
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 10px 0;
}
.nav-item {
  padding: 7px 18px;
  color: var(--muted);
  border-left: 2px solid transparent;
}
.nav-item:hover { color: var(--text); }
.nav-item.active {
  color: var(--bright);
  border-left-color: var(--bright);
  background: var(--surface-2);
}
.sidebar-foot {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px 18px 0;
  border-top: 1px solid var(--border);
}
.who { color: var(--muted); font-size: 12px; }
.logout {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 5px 10px;
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.logout:hover { color: var(--bright); border-color: var(--muted); }

/* --- content --- */
.content {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.topbar {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
}
.topbar h1 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--bright);
}
.panel {
  padding: 24px;
  min-width: 0;
}

/* --- tiles --- */
.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}
.tile {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 16px;
}
.tile:hover { border-color: var(--muted); }
.tile-title {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 11px;
}
.tile-metric {
  margin-top: 10px;
  color: var(--bright);
  font-size: 22px;
}
.tile-detail { margin-top: 4px; }
.tile-updated {
  margin-top: 12px;
  color: var(--muted);
  font-size: 11px;
}

/* --- tables --- */
.grid {
  width: 100%;
  border-collapse: collapse;
}
.grid th, .grid td {
  padding: 7px 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--border);
}
.grid th {
  color: var(--muted);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.grid tbody tr:hover { background: var(--surface); }
.grid td.mono { color: var(--muted); }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.nowrap { white-space: nowrap; }
.empty { color: var(--muted); }

/* --- login --- */
.login-page {
  display: flex;
  align-items: flex-start;
  justify-content: center;
}
.login {
  width: 300px;
  margin-top: 15vh;
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 28px 24px;
}
.login .brand {
  border: none;
  padding: 0 0 6px;
}
.login label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
}
.login input {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  font: inherit;
}
.login input:focus { outline: none; border-color: var(--muted); }
.login button {
  margin-top: 4px;
  background: var(--bright);
  color: var(--bg);
  border: none;
  padding: 9px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.login button:hover { background: #ffffff; }
.login-error {
  background: #1a1113;
  border: 1px solid #47262b;
  color: #d99a9a;
  padding: 8px 10px;
  font-size: 12px;
}