:root {
  --bg: #0f1720;
  --panel: #1a2430;
  --panel-2: #212d3b;
  --border: #2c3a4a;
  --text: #e6edf3;
  --text-dim: #93a4b8;
  --accent: #3b82f6;
  --green: #22c55e;
  --yellow: #eab308;
  --red: #ef4444;
  --radius: 10px;
}

* { box-sizing: border-box; }

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

a { color: var(--accent); }

.center-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 360px;
}

.login-card h1 {
  font-size: 1.25rem;
  margin: 0 0 4px;
}

.login-card p.sub {
  color: var(--text-dim);
  margin: 0 0 20px;
  font-size: 0.9rem;
}

label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin: 12px 0 4px;
}

input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font-size: 0.95rem;
}

input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--accent);
}

button {
  cursor: pointer;
  font-size: 0.95rem;
  border-radius: 8px;
  border: none;
  padding: 10px 16px;
  font-weight: 600;
}

button.primary {
  background: var(--accent);
  color: white;
  width: 100%;
  margin-top: 18px;
}

button.secondary {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
}

button.danger {
  background: var(--red);
  color: white;
}

button.small {
  padding: 6px 10px;
  font-size: 0.8rem;
}

.error-msg {
  color: var(--red);
  font-size: 0.85rem;
  margin-top: 10px;
  min-height: 1em;
}

/* App shell */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  flex-wrap: wrap;
  gap: 10px;
}

.topbar .brand {
  font-weight: 700;
  font-size: 1.05rem;
}

.topbar .brand span {
  color: var(--text-dim);
  font-weight: 400;
  font-size: 0.85rem;
  display: block;
}

.topbar nav {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.filters {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: flex-end;
  margin-bottom: 20px;
}

.filters .field { min-width: 140px; }
.filters label { margin: 0 0 4px; }

.tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 4px;
}

.tab-btn {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 8px 8px 0 0;
  padding: 8px 16px;
}

.tab-btn.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.kpi-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.kpi-card .label {
  color: var(--text-dim);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.kpi-card .value {
  font-size: 1.7rem;
  font-weight: 700;
  margin-top: 4px;
}

.section-title {
  font-size: 1rem;
  font-weight: 700;
  margin: 28px 0 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
  margin-bottom: 10px;
}

.chart-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.chart-card h3 {
  margin: 0 0 12px;
  font-size: 0.9rem;
  color: var(--text-dim);
  font-weight: 600;
}

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

th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
}

th {
  color: var(--text-dim);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

tr:last-child td { border-bottom: none; }

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}

.badge.green { background: rgba(34,197,94,0.15); color: var(--green); }
.badge.yellow { background: rgba(234,179,8,0.15); color: var(--yellow); }
.badge.red { background: rgba(239,68,68,0.15); color: var(--red); }
.badge.nodata { background: rgba(147,164,184,0.15); color: var(--text-dim); }

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

.dyn-row {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
  align-items: center;
}

.dyn-row select, .dyn-row input { flex: 1; }

.dyn-row button {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--red);
  padding: 8px 10px;
}

.add-row-btn {
  margin-top: 4px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 16px;
}

.form-grid .full { grid-column: 1 / -1; }

@media (max-width: 640px) {
  .form-grid { grid-template-columns: 1fr; }
}

.muted { color: var(--text-dim); font-size: 0.85rem; }

.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  padding: 12px 16px;
  border-radius: 8px;
  max-width: 320px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
}

.toast.error { border-left-color: var(--red); }
.toast.success { border-left-color: var(--green); }