:root {
  --bg: #15161a; --panel: #1f2128; --line: #2f323b; --text: #e8e8ea; --muted: #9a9ca6;
  --accent: #ffb000; --accent-text: #15161a;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.4 system-ui, -apple-system, Segoe UI, sans-serif; padding: 0 16px 32px; }
header { display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line); }
h1 { font-size: 20px; margin: 0; }
h1 span { color: var(--muted); font-weight: normal; margin-left: 8px; }
nav { display: flex; gap: 4px; }
nav button { background: none; border: 1px solid var(--line); color: var(--text); padding: 6px 14px; border-radius: 6px; cursor: pointer; }
nav button.active { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.actions { display: flex; flex-wrap: wrap; gap: 6px; margin-left: auto; }
button, .file { background: var(--panel); border: 1px solid var(--line); color: var(--text); padding: 6px 12px; border-radius: 6px; cursor: pointer; font: inherit; }
button.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); font-weight: 600; }
.file input { display: none; }
.status { min-height: 1.4em; margin: 8px 0; color: var(--muted); }
.status.error { color: #ff6b6b; }
.tab { display: none; }
.tab.active { display: block; }
.toolbar { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; margin: 8px 0; }
.toolbar label { display: inline-flex; gap: 6px; align-items: center; color: var(--muted); }
input, select { background: var(--panel); color: var(--text); border: 1px solid var(--line); border-radius: 4px; padding: 4px 6px; font: inherit; }
input[type=number] { width: 64px; }
.brushes { margin: 8px 0; }
.brush-row { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 4px; }
.brush { width: 40px; height: 40px; padding: 2px; border: 2px solid var(--line); border-radius: 4px; background: var(--panel); cursor: pointer; display: grid; place-items: center; }
.brush canvas { image-rendering: pixelated; width: 32px; height: 32px; }
.brush.active { border-color: var(--accent); }
.brush.label { width: auto; padding: 0 10px; font-size: 13px; }
.map-wrap { overflow: auto; border: 1px solid var(--line); background: #000; max-width: 100%; }
#map { image-rendering: pixelated; display: block; cursor: crosshair; }
.hint { color: var(--muted); font-size: 13px; }
.grid { display: flex; flex-wrap: wrap; gap: 12px; }
.cell { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 8px; text-align: center; font-size: 12px; color: var(--muted); }
.cell canvas { image-rendering: pixelated; display: block; margin: 0 auto 4px; }
.group { margin: 12px 0; }
.group h3 { margin: 0 0 6px; font-size: 14px; font-weight: 600; }
.group h3 small { color: var(--muted); font-weight: normal; margin-left: 8px; }
.group .frames { display: flex; flex-wrap: wrap; gap: 8px; }
#nes { width: 512px; max-width: 100%; image-rendering: pixelated; background: #000; display: block; }
footer { margin-top: 32px; border-top: 1px solid var(--line); padding-top: 12px; color: var(--muted); font-size: 13px; }
footer a { color: var(--accent); }
.tia { color: var(--text); }
.pixel-editor { background: var(--panel); border: 1px solid var(--accent); border-radius: 8px; padding: 12px; margin: 8px 0 16px; }
.pe-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.pe-fields { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-bottom: 8px; }
.pe-fields label { display: inline-flex; gap: 6px; align-items: center; color: var(--muted); }
.pe-body { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-start; }
.pe-canvas { image-rendering: pixelated; border: 1px solid var(--line); cursor: crosshair; max-width: 100%; }
.pe-colors { display: flex; flex-direction: column; gap: 6px; }
.swatch { width: 40px; height: 40px; border: 2px solid var(--line); border-radius: 4px; cursor: pointer; display: grid; place-items: center; font-size: 12px; color: #fff; text-shadow: 0 0 3px #000; }
.swatch.active { border-color: var(--accent); }
.swatch.clear { background: repeating-conic-gradient(#333 0 25%, #555 0 50%) 0 0 / 12px 12px; }
.cell.clickable, .brush { cursor: pointer; }
.look-grid { display: grid; grid-template-columns: max-content repeat(4, 40px); gap: 6px 8px; align-items: center; margin: 8px 0; }
.look-grid .row-name { color: var(--muted); font-size: 13px; }
.nes-picker { display: grid; grid-template-columns: repeat(16, 28px); gap: 3px; margin: 8px 0; padding: 8px; background: var(--panel); border: 1px solid var(--accent); border-radius: 8px; width: max-content; max-width: 100%; }
.nes-picker .swatch { width: 28px; height: 28px; font-size: 9px; }
.roll-title { font-size: 14px; font-weight: 600; margin: 12px 0 4px; }
.roll-wrap { overflow: auto; max-height: 340px; border: 1px solid var(--line); background: #000; max-width: 100%; }
.roll-wrap canvas { display: block; cursor: crosshair; }