:root {
  --bg: #15171c; --bg2: #1d2027; --bg3: #262a33; --line: #343945; --fg: #e6e8ee; --fg2: #a3a9b8;
  --accent: #5aa9ff; --accent2: #2f6fc4; --ok: #4cc38a; --warn: #f0b24a; --err: #ef6a6a;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --checker: repeating-conic-gradient(#8a8f99 0 25%, #c9cdd6 0 50%) 0 0 / 12px 12px;
}
@media (prefers-color-scheme: light) {
  :root { --bg: #f5f6f8; --bg2: #ffffff; --bg3: #eceef2; --line: #d7dae1; --fg: #1b1e25; --fg2: #5c6372;
          --accent: #2f6fc4; --accent2: #5aa9ff; }
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body { background: var(--bg); color: var(--fg); font: 14px/1.4 var(--sans); display: flex; flex-direction: column; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: var(--bg3); border: 1px solid var(--line); border-radius: 6px; padding: 5px 11px; cursor: pointer; }
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent2); border-color: var(--accent2); color: #fff; }
button.primary:hover { filter: brightness(1.1); }
button.danger { color: var(--err); }
button:disabled { opacity: .5; cursor: default; }
button.small { padding: 2px 8px; font-size: 12px; }
input[type=text], input[type=number], select, textarea {
  background: var(--bg); border: 1px solid var(--line); border-radius: 6px; padding: 5px 8px; min-width: 0;
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
textarea { width: 100%; resize: vertical; font-family: var(--mono); font-size: 13px; }
code, .mono { font-family: var(--mono); font-size: 12.5px; }
a { color: var(--accent); }
small, .muted { color: var(--fg2); }
h2 { font-size: 16px; margin: 0 0 4px; }
h3 { font-size: 13px; margin: 14px 0 6px; text-transform: uppercase; letter-spacing: .04em; color: var(--fg2); }

#top { display: flex; align-items: center; gap: 12px; padding: 8px 14px; background: var(--bg2); border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; letter-spacing: .02em; }
.status { flex: 1; color: var(--fg2); font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

#layout { flex: 1; display: grid; grid-template-columns: 260px 1fr auto; min-height: 0; }
#sidebar { background: var(--bg2); border-right: 1px solid var(--line); overflow: auto; padding: 8px 0; }
#main { overflow: auto; padding: 14px 18px; min-width: 0; }
#detail { width: 460px; border-left: 1px solid var(--line); background: var(--bg2); overflow: auto; padding: 14px 16px; }
#detail[hidden] { display: none; }
#detail:has(.stage-wrap) { width: min(860px, 62vw); }   /* room for the screen preview at 1:1 */
.empty { color: var(--fg2); padding: 40px; text-align: center; }

/* sidebar */
.file { padding: 4px 0 8px; border-bottom: 1px solid var(--line); margin-bottom: 4px; }
.file-head { display: flex; align-items: center; gap: 6px; padding: 4px 12px; font-weight: 600; }
.file-head .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--warn); display: none; }
.file.dirty .file-head .dot { display: inline-block; }
.file-head .name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-tools { display: flex; gap: 4px; padding: 2px 12px 6px; flex-wrap: wrap; }
.sec { display: flex; justify-content: space-between; padding: 3px 12px 3px 22px; cursor: pointer; color: var(--fg); }
.sec:hover { background: var(--bg3); }
.sec.active { background: var(--bg3); color: var(--accent); }
.sec .n { color: var(--fg2); font-size: 12px; }
.sec.zero { color: var(--fg2); opacity: .6; }
.group-title { padding: 6px 12px 2px; font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--fg2); }

/* main views */
.view-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.view-head input[type=text] { width: 260px; }
.view-head .count { color: var(--fg2); }
table.items { border-collapse: collapse; width: 100%; }
table.items th { text-align: left; color: var(--fg2); font-weight: 500; padding: 4px 8px; border-bottom: 1px solid var(--line); position: sticky; top: -14px; background: var(--bg); }
table.items td { padding: 4px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.items tr { cursor: pointer; }
table.items tr:hover td { background: var(--bg3); }
table.items tr.active td { background: var(--bg3); box-shadow: inset 3px 0 var(--accent); }
td.idx, .idx { font-family: var(--mono); color: var(--fg2); white-space: nowrap; width: 1%; }
.br { color: var(--accent); font-size: 11px; padding: 0 2px; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 8px; }
.card { background: var(--bg2); border: 1px solid var(--line); border-radius: 8px; padding: 6px; cursor: pointer; text-align: center; }
.card:hover { border-color: var(--accent); }
.card.active { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.thumb { height: 72px; display: flex; align-items: center; justify-content: center; background: var(--checker); border-radius: 4px; overflow: hidden; }
.thumb img { max-width: 100%; max-height: 100%; image-rendering: pixelated; }
.thumb.big { height: auto; min-height: 80px; padding: 8px; }
.thumb.big img { max-height: 480px; }
.card .cap { font-size: 12px; margin-top: 4px; color: var(--fg2); display: flex; justify-content: center; gap: 6px; flex-wrap: wrap; }
.card .cap b { color: var(--fg); font-family: var(--mono); font-weight: 500; }
.badge { background: var(--bg3); border-radius: 10px; padding: 0 6px; font-size: 11px; }
.swatch { height: 56px; border-radius: 4px; background: var(--checker); position: relative; overflow: hidden; }
.swatch span { position: absolute; inset: 0; }
.swatch.inline { display: inline-block; width: 28px; height: 20px; vertical-align: middle; margin-right: 6px; }

/* detail */
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 3px 12px; font-size: 13px; }
.kv dt { color: var(--fg2); } .kv dd { margin: 0; font-family: var(--mono); word-break: break-all; }
.row { display: flex; gap: 8px; align-items: center; margin: 6px 0; flex-wrap: wrap; }
.row label { color: var(--fg2); min-width: 80px; }
.row input[type=number] { width: 80px; }
.frames { display: flex; gap: 6px; flex-wrap: wrap; }
.frames .thumb { width: 64px; height: 64px; flex-direction: column; }
.frame-cap { font-size: 11px; text-align: center; color: var(--fg2); font-family: var(--mono); }
.link { color: var(--accent); cursor: pointer; text-decoration: underline dotted; }
.problem { color: var(--err); font-size: 12px; }
.psnr { font-weight: 600; }
.preview-box { background: var(--checker); padding: 8px; border-radius: 6px; text-align: center; }
.preview-box img { max-width: 100%; image-rendering: pixelated; }
ul.plain { margin: 4px 0; padding-left: 18px; font-size: 12.5px; }
.drop #main { outline: 3px dashed var(--accent); outline-offset: -8px; }

/* modal */
#modal { position: fixed; inset: 0; background: rgba(0,0,0,.45); display: flex; align-items: center; justify-content: center; z-index: 10; }
#modal[hidden] { display: none; }
.modal-box { background: var(--bg2); border: 1px solid var(--line); border-radius: 10px; padding: 18px; width: min(680px, 92vw);
}
.modal-box:has(.stage-wrap.big) { width: min(860px, 95vw); max-height: 86vh; overflow: auto; box-shadow: 0 20px 60px rgba(0,0,0,.4); }
.modal-box h2 { margin-bottom: 10px; }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 14px; }
.browse { border: 1px solid var(--line); border-radius: 6px; max-height: 50vh; overflow: auto; margin-top: 8px; }
.browse div { padding: 4px 10px; cursor: pointer; display: flex; justify-content: space-between; }
.browse div:hover { background: var(--bg3); }
.browse .dir::before { content: "📁 "; } .browse .gph::before { content: "📄 "; }
.pathbar { display: flex; gap: 6px; } .pathbar input { flex: 1; }

/* toasts */
#toasts { position: fixed; right: 14px; bottom: 14px; display: flex; flex-direction: column; gap: 6px; z-index: 20; }
.toast { background: var(--bg3); border: 1px solid var(--line); border-left: 4px solid var(--ok); border-radius: 6px; padding: 8px 12px; max-width: 420px; box-shadow: 0 6px 20px rgba(0,0,0,.3); }
.toast.err { border-left-color: var(--err); }
.toast.warn { border-left-color: var(--warn); }

@media (max-width: 900px) {
  #layout { grid-template-columns: 1fr; grid-template-rows: auto 1fr auto; }
  #sidebar { border-right: 0; border-bottom: 1px solid var(--line); max-height: 30vh; }
  #detail { width: auto; border-left: 0; border-top: 1px solid var(--line); max-height: 50vh; }
}

/* settings + references + stage */
.settings { display: flex; gap: 12px; }
.setting { color: var(--fg2); font-size: 13px; }
.setting select { padding: 2px 6px; }
.ref { cursor: pointer; display: inline-flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.ref b { font-family: var(--mono); font-weight: 500; color: var(--accent); }
.ref:hover b { text-decoration: underline; }
.text-ref { cursor: pointer; }
.text-ref:hover { text-decoration: underline; }
.thumb.mini { display: inline-flex; width: 48px; height: 32px; }
dl.refs dd { font-family: var(--sans); }
ol.reflist { margin: 0; padding-left: 22px; }
ol.reflist li { margin: 2px 0; }
ol.reflist li::marker { color: var(--fg2); font-family: var(--mono); font-size: 12px; }
.stage-wrap { position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: 6px; background: #000; }
.stage-wrap.big { width: 800px; max-width: 100%; overflow: auto; height: 480px; }
.stage { position: absolute; left: 0; top: 0; transform-origin: 0 0; background: #000; overflow: hidden; }
.stage img { position: absolute; image-rendering: pixelated; }
.stage-bg { left: 0; top: 0; opacity: .85; }
.stage-img { outline: 1px solid rgba(90,169,255,.7); }
.stage-text { position: absolute; white-space: pre; overflow: visible; outline: 1px dashed rgba(240,178,74,.9); font-family: var(--sans); text-shadow: 0 0 2px #000; display: flex; align-items: flex-start; }
.stage img.stage-font { position: static; image-rendering: auto; outline: none; }
.stage-text.ph { color: rgba(255,255,255,.5) !important; font-style: italic; }
.stage-box { position: absolute; outline: 1px dashed rgba(76,195,138,.9); color: rgba(76,195,138,.9); font-size: 11px; overflow: hidden; }
.stage-box span { background: rgba(0,0,0,.5); padding: 0 3px; }
.stage.movable { cursor: grab; }
.stage.movable img, .stage.movable div { pointer-events: none; }
.stage .hl { outline: 3px solid var(--accent) !important; z-index: 5; }
table.screen-objects td { font-size: 13px; }
table.screen-objects tr { cursor: default; }
table.screen-objects tr:hover td { background: var(--bg3); }
td.pics { white-space: nowrap; width: 1%; }
td.pics .thumb.mini { margin-right: 4px; cursor: pointer; width: 72px; height: 44px; }
td.pics .thumb.mini:hover { outline: 2px solid var(--accent); }