:root {
  --bg: #f3f1ec;
  --paper: #ffffff;
  --text: #1c1917;
  --muted: #57534e;
  --border: #e4e0d8;
  --line: #d6d3cd;
  --accent: #1d4ed8;
  --accent-soft: #dbeafe;
  --ok: #15803d;
  --ok-soft: #dcfce7;
  --warn: #b45309;
  --warn-soft: #ffedd5;
  --danger: #b91c1c;
  --danger-soft: #fee2e2;
  --shadow: 0 1px 2px rgba(28, 25, 23, 0.06), 0 8px 24px rgba(28, 25, 23, 0.04);
  --radius: 12px;
  --font: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
  --mono: "Source Code Pro", ui-monospace, Menlo, monospace;
}
[data-theme="dark"] {
  --bg: #121212;
  --paper: #1c1c1c;
  --text: #f5f5f4;
  --muted: #a8a29e;
  --border: #2a2a2a;
  --line: #3f3f46;
  --accent: #93c5fd;
  --accent-soft: #1e3a5f;
  --ok: #86efac;
  --ok-soft: #14532d;
  --warn: #fdba74;
  --warn-soft: #7c2d12;
  --danger: #fca5a5;
  --danger-soft: #7f1d1d;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.25);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
  min-height: 100vh;
}
h1, h2, h3 { font-weight: 650; letter-spacing: -0.02em; margin: 0; }
h1 { font-size: 1.15rem; }
h2 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin: 0 0 8px; }
button, input, select, textarea { font: inherit; color: inherit; }
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 16px;
  background: var(--paper);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}
.brand { display: flex; flex-direction: column; gap: 2px; }
.brand span { font-size: 0.75rem; color: var(--muted); }
.actions { display: flex; flex-wrap: wrap; gap: 6px; }
.btn {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 0.85rem;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); color: #fff; border-color: transparent; }
[data-theme="dark"] .btn.primary { color: #0f172a; }
.btn.danger { color: var(--danger); }
.layout {
  display: grid;
  grid-template-columns: minmax(300px, 380px) 1fr;
  gap: 16px;
  padding: 16px;
  align-items: start;
}
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; padding: 10px; }
  header { position: static; }
}
.panel, .card {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.panel { padding: 12px; }
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 12px;
}
.tabs button {
  border: 0;
  background: transparent;
  padding: 6px 9px;
  border-radius: 8px;
  color: var(--muted);
  cursor: pointer;
}
.tabs button[aria-selected="true"] {
  background: var(--accent-soft);
  color: var(--text);
}
.tab-page { display: none; }
.tab-page.active { display: block; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
.field { display: flex; flex-direction: column; gap: 3px; margin-bottom: 8px; }
.field label { font-size: 0.75rem; color: var(--muted); }
.field input, .field select, .field textarea {
  border: 1px solid var(--line);
  background: var(--bg);
  border-radius: 8px;
  padding: 6px 8px;
  width: 100%;
}
.field input:focus, .field select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.hint { font-size: 0.75rem; color: var(--muted); margin: 0 0 10px; }
.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}
.metric {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  box-shadow: var(--shadow);
}
.metric .v { font-size: 1.05rem; font-weight: 650; }
.metric .l { font-size: 0.72rem; color: var(--muted); }
.plan-wrap {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
  box-shadow: var(--shadow);
  overflow: auto;
}
.plan-wrap svg { width: 100%; height: auto; display: block; max-height: 70vh; touch-action: none; }
.warnings { margin: 10px 0; display: flex; flex-direction: column; gap: 6px; }
.warn, .info, .bad {
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.85rem;
}
.warn { background: var(--warn-soft); color: var(--warn); }
.bad { background: var(--danger-soft); color: var(--danger); }
.info { background: var(--ok-soft); color: var(--ok); }
.zone-list { display: flex; flex-direction: column; gap: 6px; max-height: 58vh; overflow: auto; }
.zone-row {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  background: var(--bg);
}
.zone-row header {
  position: static;
  background: transparent;
  border: 0;
  padding: 0;
  box-shadow: none;
  gap: 6px;
}
.zone-row h3 { font-size: 0.88rem; }
.zone-row .row-actions { display: flex; gap: 4px; align-items: center; }
.chk { display: flex; align-items: center; gap: 6px; font-size: 0.85rem; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
th, td { padding: 6px 8px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 0.75rem; }
th { white-space: nowrap; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; font-family: var(--mono); font-size: 0.8rem; white-space: nowrap; }
.table-wrap table { min-width: 720px; }
.table-wrap { overflow-x: auto; margin-top: 12px; }
footer {
  padding: 16px;
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
}
.hidden { display: none !important; }
.swatch { width: 10px; height: 10px; border-radius: 2px; display: inline-block; margin-right: 6px; }
@media print {
  header .actions, .panel, .tabs, footer { display: none !important; }
  .layout { display: block; padding: 0; }
  .plan-wrap, .card, .metric { box-shadow: none; }
  body { background: #fff; color: #111; }
}