:root {
  --bg: #0f1115; --panel: #1a1a2e; --field: #0d1117; --border: #2a2d3a;
  --text: #e0e0e0; --muted: #8b90a0; --accent: #4f8cff; --ok: #3ddc84; --warn: #f5b942; --bad: #ff5c5c;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.45 "Segoe UI", system-ui, sans-serif; }
body { display: flex; flex-direction: column; min-height: 100vh; }
header { padding: 14px 20px 6px; }
h1 { margin: 0; font-size: 22px; }
.tag { margin: 2px 0 0; color: var(--muted); }
.muted { color: var(--muted); }
.hidden { display: none !important; }
.banner { margin: 10px 20px; padding: 12px 14px; border-radius: 8px; background: #2a2340; border: 1px solid #5a4a8a; }
.banner.warn { background: #3a2f1a; border-color: #8a6a2a; }
main { flex: 1; display: flex; flex-direction: column; gap: 12px; padding: 8px 20px 16px; }
section { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 12px; }
.folder, .actions, .row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.folder .right { margin-left: auto; }
label { display: inline-flex; align-items: center; gap: 6px; }
button, select, input[type=text], input[type=number] {
  background: var(--field); color: var(--text); border: 1px solid var(--border); border-radius: 6px;
  padding: 6px 10px; font: inherit;
}
input[type=number] { width: 80px; }
input[type=range] { accent-color: var(--accent); }
button { cursor: pointer; }
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: .45; cursor: not-allowed; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
progress { width: 220px; height: 10px; accent-color: var(--accent); }
.tablewrap { overflow: auto; max-height: 60vh; padding: 0; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 6px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { position: sticky; top: 0; background: #22223a; }
td.num { text-align: right; }
.st-ok { color: var(--ok); } .st-skip { color: var(--muted); } .st-bad { color: var(--bad); } .st-do { color: var(--warn); }
#sizeFrameWrap { margin-top: 10px; overflow: auto; }
#sizeFrame { border: 3px solid var(--accent); box-sizing: content-box; }
footer { padding: 10px 20px; border-top: 1px solid var(--border); color: var(--muted); font-size: 12.5px; display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
footer a { color: var(--accent); text-decoration: none; }
.tip { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.tip a { border: 1px solid var(--border); border-radius: 999px; padding: 3px 11px; }
.tip a:hover { border-color: var(--accent); background: var(--panel); }
code { background: var(--field); padding: 1px 4px; border-radius: 4px; }
body.drag::after { content: "Drop images here"; position: fixed; inset: 0; display: grid; place-items: center; font-size: 28px; background: rgba(79,140,255,.25); border: 3px dashed var(--accent); }
.note { margin: 8px 0 0; font-size: 12.5px; }
.row .right { margin-left: auto; }
tbody tr { cursor: pointer; }
tbody tr:hover { background: #22223a; }
tbody tr.sel { background: #2a3352; }
.pv { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 8px; }
.pv figure { margin: 0; min-width: 0; }
.pv figcaption { font-size: 12.5px; color: var(--muted); margin-bottom: 4px; }
.pvimg { background: var(--field); border: 1px solid var(--border); border-radius: 6px; overflow: auto; max-height: 70vh; }
.pvimg img { display: block; max-width: 100%; height: auto; }
#preview.actual .pvimg img { max-width: none; }
@media (max-width: 700px) { .pv { grid-template-columns: 1fr; } }