:root {
  --bg: #0b0d12;
  --panel: #12161f;
  --panel-2: #181d29;
  --border: #2a3142;
  --text: #e8edf7;
  --muted: #8b95a8;
  --accent: #c9a227;
  --accent-2: #4c8dff;
  --ok: #3ecf8e;
  --warn: #f0b429;
  --bad: #ef5b5b;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  font-family: "Segoe UI", "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--text); }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.error { color: var(--bad); min-height: 1.2em; }
.brand { font-weight: 800; letter-spacing: 0.04em; color: var(--accent); text-transform: uppercase; font-size: 13px; }

.login-shell {
  position: relative;
  z-index: 1;
  min-height: 100%;
  display: grid;
  place-items: center;
  background: transparent;
}
.login-card {
  width: min(420px, 92vw);
  background: rgba(18, 22, 31, 0.92);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  display: grid;
  gap: 12px;
}
.login-card h1 { margin: 0; font-size: 28px; }
.login-card label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }
input, textarea, select, button {
  font: inherit;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
}
button { cursor: pointer; }
button.primary, .primary {
  background: linear-gradient(180deg, #d4b14a, #a8841c);
  color: #15120a;
  border: none;
  font-weight: 700;
}
button.ghost { background: transparent; }

.app-shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100%; }
.sidebar {
  background: #0e121a;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 18px 12px;
}
.sidebar-brand { padding: 8px 10px 18px; }
.sidebar-sub { color: var(--muted); font-size: 12px; margin-top: 4px; }
#nav { display: grid; gap: 4px; flex: 1; }
#nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 10px;
}
#nav a.active, #nav a:hover {
  background: rgba(201, 162, 39, 0.12);
  color: var(--text);
}
.sidebar-foot { display: grid; gap: 8px; padding-top: 12px; border-top: 1px solid var(--border); }
main { display: flex; flex-direction: column; min-width: 0; }
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  background: rgba(11, 13, 18, 0.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 2;
}
.topbar h1 { margin: 0; font-size: 22px; }
.content { padding: 20px 24px 40px; display: grid; gap: 16px; }
.pill {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  color: var(--muted);
}
.pill.ok { color: var(--ok); border-color: rgba(62, 207, 142, 0.35); }
.pill.warn { color: var(--warn); border-color: rgba(240, 180, 41, 0.35); }
.pill.bad { color: var(--bad); border-color: rgba(239, 91, 91, 0.35); }

.grid { display: grid; gap: 12px; }
.grid.cards { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 16px;
  box-shadow: var(--shadow);
}
.card h3 { margin: 0 0 6px; font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }
.card .value { font-size: 28px; font-weight: 700; }
.card .sub { font-size: 12px; color: var(--muted); margin-top: 4px; }

.table-wrap { overflow: auto; border: 1px solid var(--border); border-radius: 14px; background: var(--panel); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
th { color: var(--muted); font-weight: 600; background: var(--panel-2); position: sticky; top: 0; }
tr:hover td { background: rgba(255,255,255,0.02); }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }
.chart {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 120px;
  padding-top: 8px;
}
.chart .bar {
  flex: 1;
  background: linear-gradient(180deg, var(--accent-2), rgba(76,141,255,0.25));
  border-radius: 4px 4px 0 0;
  min-height: 2px;
}
.alert {
  border-left: 3px solid var(--warn);
  background: rgba(240, 180, 41, 0.08);
  padding: 10px 12px;
  border-radius: 8px;
}
.form-row { display: grid; gap: 8px; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
pre.json {
  background: #0a0c10;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  overflow: auto;
  max-height: 420px;
  font-size: 12px;
}
@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: sticky; top: 0; z-index: 3; }
  #nav { grid-auto-flow: column; grid-auto-columns: max-content; overflow-x: auto; }
}