:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #162033;
  --muted: #6b7280;
  --line: #e5e7eb;
  --accent: #bd1e24;
  --accent-2: #0f6fff;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}
.topbar {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px;
  background: linear-gradient(135deg, #fff 0%, #f8fafc 100%);
  border-bottom: 1px solid var(--line);
}
.topbar h1 { margin: 0 0 6px; font-size: 28px; }
.topbar p { margin: 0; color: var(--muted); max-width: 760px; }
.topbar-actions, .download-actions, .config-actions, .table-tools { display: flex; gap: 10px; flex-wrap: wrap; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 18px;
}
.controls { margin: 20px 24px 0; }
.controls-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(160px, 1fr));
  gap: 16px;
}
.controls label { display: block; font-size: 12px; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(140px, 1fr));
  gap: 16px;
  padding: 20px 24px 0;
}
.metric span { display: block; color: var(--muted); font-size: 13px; margin-bottom: 8px; }
.metric strong { font-size: 26px; }
.layout-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 20px 24px 32px;
}
.span-2 { grid-column: span 2; }
.span-3 { grid-column: span 3; }
#map { height: 560px; border-radius: 14px; overflow: hidden; }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}
.section-head h2 { margin: 0; font-size: 18px; }
.legend { display: flex; flex-wrap: wrap; gap: 8px; }
.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--muted);
  background: #f8fafc;
  border: 1px solid var(--line);
  padding: 6px 10px;
  border-radius: 999px;
}
.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  display: inline-block;
}
.insights { display: grid; gap: 12px; }
.insight {
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent-2);
  background: #fbfdff;
  padding: 12px 14px;
  border-radius: 12px;
}
.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
}
.table-wrap.tall { max-height: 640px; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
thead th {
  position: sticky;
  top: 0;
  background: #f8fafc;
  z-index: 1;
}
th, td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
}
tbody tr:hover { background: #fcfcfd; }
.matrix {
  display: grid;
  gap: 10px;
}
.matrix-row {
  display: grid;
  grid-template-columns: 180px 1fr 90px;
  gap: 12px;
  align-items: center;
}
.matrix-bar {
  position: relative;
  height: 12px;
  border-radius: 999px;
  background: #eef2f7;
  overflow: hidden;
}
.matrix-fill {
  position: absolute;
  inset: 0 auto 0 0;
  border-radius: 999px;
}
.upload-btn, button {
  border: 1px solid var(--line);
  background: white;
  color: var(--text);
  padding: 10px 14px;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 600;
}
.upload-btn input { display: none; }
.upload-btn { display: inline-flex; align-items: center; }
button:hover, .upload-btn:hover { border-color: #cbd5e1; }
.muted { color: var(--muted); }
.config-panel { margin-top: 18px; }
.config-panel summary { cursor: pointer; font-weight: 700; }
.config-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(140px, 1fr));
  gap: 12px;
  margin-top: 14px;
}
.config-grid label { margin-bottom: 4px; }
.config-grid input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.footer {
  padding: 0 24px 30px;
  color: var(--muted);
}
@media (max-width: 1200px) {
  .metrics-grid { grid-template-columns: repeat(3, 1fr); }
  .layout-grid { grid-template-columns: 1fr; }
  .span-2, .span-3 { grid-column: span 1; }
  .controls-grid, .config-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .topbar, .controls-grid, .metrics-grid, .config-grid { grid-template-columns: 1fr; display: grid; }
  .topbar { padding: 18px; }
  .controls, .metrics-grid, .layout-grid, .footer { padding-left: 18px; padding-right: 18px; margin-left: 0; }
  .matrix-row { grid-template-columns: 1fr; }
  #map { height: 420px; }
}