:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --panel-alt: #eef1f4;
  --border: #dde2e7;
  --text: #1b2430;
  --muted: #66727e;
  --accent: #1f9d8c;
  --accent-dim: #157567;
  --warn: #b9760f;
  --danger: #c8392f;
  --radius: 8px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #ffffff, #f6f7f9);
}

.brand { display: flex; align-items: center; gap: 14px; }

.brand-mark {
  display: inline-flex;
  align-items: flex-end;
  gap: 3px;
  height: 26px;
}
.brand-mark .bar {
  width: 5px;
  background: var(--accent);
  border-radius: 2px;
  animation: pulse 2.4s ease-in-out infinite;
}
.bar.b1 { height: 8px; animation-delay: 0s; }
.bar.b2 { height: 16px; animation-delay: .2s; }
.bar.b3 { height: 24px; animation-delay: .4s; }
.bar.b4 { height: 12px; animation-delay: .6s; }
@keyframes pulse {
  0%, 100% { opacity: .45; }
  50% { opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .brand-mark .bar { animation: none; opacity: 1; }
}

.brand-text h1 { font-size: 17px; margin: 0; font-weight: 600; letter-spacing: 0.01em; }
.brand-text p { margin: 2px 0 0; color: var(--muted); font-size: 12.5px; }

.status { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--muted); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--warn); box-shadow: 0 0 0 3px rgba(232,164,70,0.15); }
.dot.ok { background: var(--accent); box-shadow: 0 0 0 3px rgba(70,216,196,0.18); }
.dot.err { background: var(--danger); box-shadow: 0 0 0 3px rgba(232,92,92,0.18); }

.tabs {
  display: flex;
  gap: 4px;
  padding: 14px 28px 0;
  border-bottom: 1px solid var(--border);
}
.tab {
  background: none;
  border: none;
  color: var(--muted);
  padding: 10px 16px;
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}
.tab.active { color: var(--text); border-bottom-color: var(--accent); }

main { padding: 24px 28px 60px; max-width: 1400px; margin: 0 auto; }

.panel { display: none; }
.panel.active { display: block; }

.report-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 14px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 14px;
}
.card h3 { margin: 0 0 10px; font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); font-weight: 600; }
.hint-inline { text-transform: none; letter-spacing: 0; font-weight: 400; color: var(--muted); font-size: 11.5px; }

.report-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.report-card h4 { margin: 0; font-size: 14.5px; }
.report-card p { margin: 0; color: var(--muted); font-size: 12.5px; }
.report-card .params { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 4px; }
.report-card input {
  background: var(--panel-alt);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 12.5px;
  width: 120px;
}
.report-card .run-row { margin-top: 8px; display: flex; gap: 8px; }

button.btn-primary, button.btn-secondary {
  font-family: var(--sans);
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
}
button.btn-primary {
  background: var(--accent);
  color: #06211c;
  border: none;
  padding: 10px 18px;
}
button.btn-primary:hover { background: #5fe3d1; }
button.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 7px 12px;
}
button.btn-secondary:hover { border-color: var(--accent-dim); color: var(--accent); }
button:disabled { opacity: 0.4; cursor: not-allowed; }

select, input[type="text"], input[type="number"], input[type="date"] {
  background: var(--panel-alt);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 13px;
  width: 100%;
}

.row { display: flex; gap: 16px; flex-wrap: wrap; margin: 8px 0; }
.row label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); }

.hint { color: var(--muted); font-size: 12px; margin: 6px 0 0; }

.checkbox-row { display: flex; align-items: center; gap: 8px; font-size: 13px; }

.columns-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 6px 12px;
  max-height: 220px;
  overflow-y: auto;
  padding-right: 4px;
}
.columns-list label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--text);
}
.columns-list label.link-col { color: var(--accent); }

.join-row, .filter-row, .metric-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: 8px;
  margin-bottom: 8px;
  align-items: center;
}
.filter-row { grid-template-columns: 1fr 1fr 1fr 1fr auto; }

.builder-grid { display: grid; grid-template-columns: 420px 1fr; gap: 20px; align-items: start; }
.results-col { position: sticky; top: 20px; }
.results-card { min-height: 300px; }
.results-header { display: flex; justify-content: space-between; align-items: center; }
.results-actions { display: flex; gap: 8px; }
.results-meta { color: var(--muted); font-size: 12px; margin: 8px 0; }

.sql-view {
  background: #060d13;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
  font-family: var(--mono);
  font-size: 12px;
  color: #8fe9db;
  overflow-x: auto;
  white-space: pre-wrap;
}

.table-wrap { overflow: auto; max-height: 560px; border: 1px solid var(--border); border-radius: 6px; }
table.results-table { border-collapse: collapse; width: 100%; font-size: 12.5px; font-family: var(--mono); }
table.results-table th {
  position: sticky; top: 0;
  background: var(--panel-alt);
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  color: var(--accent);
  white-space: nowrap;
}
table.results-table td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
}
table.results-table tr:hover td { background: var(--panel-alt); }

.hidden { display: none !important; }

.toast {
  position: fixed;
  bottom: 20px; right: 20px;
  background: var(--panel-alt);
  border: 1px solid var(--danger);
  color: var(--text);
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 13px;
  max-width: 420px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

@media (max-width: 900px) {
  .builder-grid { grid-template-columns: 1fr; }
  .results-col { position: static; }
}