:root {
  --bg: #f8f9fa;
  --panel: #e9ecef;
  --input: #dee2e6;
  --hover: #ced4da;
  --accent: #2563eb;
  --text: #1f2937;
  --dim: #6b7280;
  --border: #adb5bd;
  --warn: #dc2626;
}

* { box-sizing: border-box; }

html, body { height: 100%; margin: 0; }

body {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 8px;
  padding: 8px;
  font: 13px/1.4 "Segoe UI", system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
}

.panel { overflow-y: auto; display: flex; flex-direction: column; gap: 12px; }

section {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
}

h2 {
  margin: 0 0 8px;
  font-size: 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .03em;
}

label { display: block; margin: 4px 0; cursor: pointer; }

.btn {
  display: inline-block;
  width: 100%;
  text-align: center;
  background: var(--input);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 10px;
  margin: 3px 0;
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
}
.btn:hover { background: var(--hover); }
.btn:active { background: var(--accent); color: #fff; }
.btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn.primary:hover { filter: brightness(1.08); }
.file-btn { cursor: pointer; }

select, input[type="number"] {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #fff;
  color: var(--text);
  font: inherit;
}

.param { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin: 5px 0; }
.param label { margin: 0; flex: 1; white-space: nowrap; }
.param input[type="number"] { width: 100px; }
.param input[type="number"]:disabled { background: var(--input); color: var(--dim); }

.dim { color: var(--dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.small { font-size: 11px; white-space: normal; }
.info { margin: 0; white-space: pre-wrap; font: 12px/1.45 "Segoe UI", sans-serif; color: var(--text); min-height: 5em; }

.main { display: flex; flex-direction: column; gap: 8px; min-width: 0; }

.plot-wrap {
  position: relative;
  flex: 1;
  min-height: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.plot-title {
  position: absolute; top: 6px; left: 0; right: 0;
  text-align: center; font-weight: 600; font-size: 13px; pointer-events: none;
}
#plot { display: block; width: 100%; height: 100%; cursor: crosshair; }

.table-wrap {
  max-height: 200px;
  overflow-y: auto;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
}
table { width: 100%; border-collapse: collapse; font-size: 12px; }
th, td { padding: 4px 10px; text-align: right; font-variant-numeric: tabular-nums; }
th:first-child, td:first-child { text-align: center; }
td:nth-child(6), td:last-child { text-align: center; }
thead th {
  position: sticky; top: 0;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  color: var(--accent); font-size: 11px; text-transform: uppercase;
}
tbody tr { cursor: pointer; }
tbody tr:hover { background: var(--bg); }
tbody tr.selected { background: #dbeafe; }