:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel-2: #273449;
  --border: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --ok: #22c55e;
  --bad: #ef4444;
  --warn: #f59e0b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

a { color: var(--accent); text-decoration: none; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.topbar h1 { font-size: 18px; margin: 0; }

.container { padding: 24px; max-width: 1400px; margin: 0 auto; }

.cards { display: flex; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
  min-width: 160px;
}

.card .label { color: var(--muted); font-size: 12px; text-transform: uppercase; }
.card .value { font-size: 26px; font-weight: 600; margin-top: 4px; }

.filters {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  align-items: center;
}

input[type=text], select {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 6px;
}

button, .btn {
  background: var(--accent);
  color: #0f172a;
  border: none;
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
}

.btn.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}

th, td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  white-space: nowrap;
}

th { color: var(--muted); font-weight: 600; background: var(--panel-2); }

tr:hover td { background: rgba(56, 189, 248, 0.06); }

.badge {
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.badge.good { background: rgba(34,197,94,0.15); color: var(--ok); }
.badge.fair { background: rgba(245,158,11,0.15); color: var(--warn); }
.badge.poor { background: rgba(239,68,68,0.15); color: var(--bad); }

.table-wrap { overflow-x: auto; }

.login-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

.login-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  width: 320px;
}

.login-box h2 { margin-top: 0; }
.login-box input { width: 100%; margin-bottom: 12px; }
.error { color: var(--bad); font-size: 13px; margin-bottom: 10px; }

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}

.detail-item {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
}

.detail-item .k { color: var(--muted); font-size: 11px; text-transform: uppercase; }
.detail-item .v { font-size: 14px; margin-top: 2px; }

.section-title {
  margin: 24px 0 10px;
  color: var(--accent);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}