:root {
  --bg: #1b1e24;
  --panel: #23272f;
  --panel-2: #2b303a;
  --border: #363c48;
  --text: #e6e8ec;
  --muted: #9aa2b1;
  --accent: #1e90ff;
  --error: #e5484d;
  --warning: #f5a524;
  --info: #6e8bd8;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  display: grid;
  grid-template-rows: auto 1fr auto;
  background: var(--bg);
  color: var(--text);
  font: 13px/1.4 system-ui, -apple-system, "Segoe UI", sans-serif;
}

button, input, select, textarea { font: inherit; color: inherit; }
button {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 10px;
  cursor: pointer;
}
button:hover { border-color: var(--muted); }
button:disabled { opacity: 0.4; cursor: default; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
input[type=text], input[type=number], select, textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px 6px;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.topbar .name { font-weight: 600; width: 200px; }
.app-title { margin: 0; font-size: 14px; font-weight: 700; white-space: nowrap; }
.group { display: flex; gap: 4px; align-items: center; }
.toggles { gap: 10px; margin-left: auto; color: var(--muted); }

.main { display: grid; grid-template-columns: 280px 1fr 320px; min-height: 0; }
.sidebar {
  overflow-y: auto;
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 4px 12px 16px;
}
.sidebar section { padding: 8px 0; border-bottom: 1px solid var(--border); }
.sidebar section:empty { display: none; }
.sidebar h2 {
  margin: 4px 0 8px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.tools { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; }
.tools button { display: flex; align-items: center; gap: 6px; text-align: left; padding: 5px 8px; }
.tools button.active { border-color: var(--accent); background: #1e90ff22; }
.tools .swatch { width: 14px; height: 14px; border-radius: 3px; flex: none; border: 1px solid #0006; }
.tools kbd { margin-left: auto; }

.field { display: grid; grid-template-columns: 80px 1fr; align-items: center; gap: 6px; margin: 5px 0; }
.field > span { color: var(--muted); }
.rot-buttons { display: flex; gap: 3px; }
.rot-buttons button { flex: 1; padding: 3px 0; }
.rot-buttons button.active { border-color: var(--accent); background: #1e90ff22; }
.recipe .talent { color: var(--text); font-weight: 600; white-space: nowrap; }
.recipe .talent img { width: 15px; height: 15px; vertical-align: -3px; margin-left: 2px; image-rendering: pixelated; }
.ext-slots { display: flex; flex-direction: column; gap: 3px; }
.ext-row { display: flex; gap: 3px; align-items: center; }
.ext-slot { width: 38px; color: var(--muted); font-size: 11px; }
.ext-row button { padding: 1px; line-height: 0; opacity: 0.55; }
.ext-row button img { width: 32px; height: 32px; image-rendering: pixelated; }
.ext-row button.active { opacity: 1; border-color: var(--accent); background: #1e90ff22; }
.ext-row button.missing { opacity: 1; border-color: var(--error); }
.ext-row button.needed { box-shadow: 0 0 0 1px var(--accent) inset; }
.row-actions { display: flex; gap: 6px; margin-top: 8px; }
.danger { color: var(--error); }
.hint { color: var(--muted); font-size: 12px; margin: 4px 0; }
.recipe { color: var(--muted); font-size: 12px; margin: 2px 0 0 86px; }

.badge { background: var(--panel-2); border-radius: 8px; padding: 0 6px; color: var(--text); }
.issues { list-style: none; margin: 0; padding: 0; max-height: 220px; overflow-y: auto; }
.issues li { padding: 3px 6px 3px 18px; position: relative; cursor: pointer; border-radius: 4px; }
.issues li:hover { background: var(--panel-2); }
.issues li::before { content: ''; position: absolute; left: 5px; top: 8px; width: 7px; height: 7px; border-radius: 50%; }
.issues li.error::before { background: var(--error); }
.issues li.warning::before { background: var(--warning); }
.issues li.info::before { background: var(--info); }
.issues .empty { color: var(--muted); cursor: default; padding-left: 0; }
.issues .empty::before { display: none; }

.stats { display: grid; grid-template-columns: 1fr auto; gap: 2px 8px; color: var(--muted); }
.stats b { color: var(--text); font-weight: 500; text-align: right; }

.help ul { margin: 0; padding-left: 16px; color: var(--muted); }
.stats .over { color: var(--error); }
.perk { display: flex; align-items: center; gap: 4px; }
.perk img { width: 20px; height: 20px; image-rendering: pixelated; }
.sections { display: flex; flex-direction: column; gap: 2px; }
.section-row { display: flex; align-items: center; gap: 6px; padding: 2px 4px; border-radius: 4px; cursor: pointer; }
.section-row:hover { background: var(--panel-2); }
.section-name { flex: 1; }
.costs { display: flex; gap: 4px; color: var(--muted); font-size: 11px; }
.cost { display: inline-flex; align-items: center; }
.cost img { width: 18px; height: 18px; image-rendering: pixelated; }
.power img { width: 15px; height: 15px; vertical-align: -3px; margin-right: 4px; image-rendering: pixelated; }
.about p { margin: 0 0 6px; color: var(--muted); font-size: 12px; line-height: 1.45; }
.about ul { margin: 0 0 6px; padding-left: 16px; color: var(--muted); font-size: 12px; }
.about strong { color: var(--text); }
.about a { color: var(--accent); }
kbd {
  font: 11px ui-monospace, monospace;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0 4px;
  color: var(--muted);
}

.canvas-wrap { position: relative; overflow: hidden; min-width: 0; min-height: 0; }
.canvas-wrap canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; }

.statusbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 4px 12px;
  background: var(--panel);
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
#status-msg.error { color: var(--error); }

.chips { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 4px; }
.checks { display: flex; flex-direction: column; gap: 2px; }
.chip { display: inline-flex; align-items: center; gap: 4px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px; padding: 1px 2px 1px 6px; font-size: 12px; }
.chip i { width: 9px; height: 9px; border-radius: 50%; border: 1px solid #0006; }
.chip img { width: 18px; height: 18px; image-rendering: pixelated; }
.chip button { border: 0; background: none; padding: 0 4px; line-height: 1; color: var(--muted); }
.field > div select { width: 100%; }


.planner-panel { border-right: 0; border-left: 1px solid var(--border); padding-top: 8px; }
.planner-panel h3 { margin: 14px 0 6px; font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
.planner-panel .field { grid-template-columns: 130px 1fr; }
.targets { display: grid; gap: 4px; margin-bottom: 6px; }
.target { display: grid; grid-template-columns: 1fr 58px auto auto; gap: 4px; align-items: center; }
.target select { min-width: 0; }
.target .unit { color: var(--muted); font-size: 12px; }
table.prod { width: 100%; border-collapse: collapse; font-size: 12px; }
table.prod td { padding: 2px 4px; border-bottom: 1px solid var(--border); }
table.prod td.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.item { display: inline-flex; align-items: center; gap: 4px; }
.item img { width: 18px; height: 18px; image-rendering: pixelated; }
.item i { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.planner-panel .error { color: var(--error); margin: 4px 0; }
.failures { margin: 0; padding-left: 16px; color: var(--muted); font-size: 12px; }
.preview-banner { display: none; position: absolute; top: 10px; left: 50%; transform: translateX(-50%); background: #1e90ffdd; color: #fff; padding: 4px 12px; border-radius: 12px; font-weight: 600; pointer-events: none; }
.canvas-wrap.previewing .preview-banner { display: block; }