/* Reload OS Studio: the panels around the design surface (the surface itself is the device's own drawing) */
:root {
  --bg: #1E1F22; --panel: #2B2D30; --panel2: #393B40; --line: #1E1F22; --hair: #43454A; --text: #DFE1E5; --muted: #9DA0A8;
  --dim: #6F737A; --accent: #FF6B35; --accent-t: #FFFFFF; --sel: #2E436E; --hover: #393B40; --blue: #3B9EFF; --drop: #FF4D9D;
  --warn: #F2C55C; --err: #F75464; --ok: #5FB865; --code: #1E1F22; --stage: #18191B; --dot: #2B2D30;
  --c-kw: #CF8E6D; --c-str: #6AAB73; --c-com: #7A7E85; --c-num: #2AACB8; --c-fn: #56A8F5; --c-mac: #B3AE60;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Sukhumvit Set", "Noto Sans Thai", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #F7F8FA; --panel: #FFFFFF; --panel2: #EBECF0; --line: #D3D5DB; --hair: #D3D5DB; --text: #1F2024; --muted: #6C707E;
    --dim: #A8ADBD; --accent: #F25C1F; --sel: #D4E2FF; --hover: #EBECF0; --blue: #1F7AE0; --drop: #E0218A;
    --warn: #A87B00; --err: #D92B3A; --ok: #1F8A3B; --code: #FFFFFF; --stage: #EEF0F3; --dot: #DCDFE4;
    --c-kw: #0033B3; --c-str: #067D17; --c-com: #8C8C8C; --c-num: #1750EB; --c-fn: #00627A; --c-mac: #9E880D;
    color-scheme: light;
  }
}
:root[data-theme="light"] {
  --bg: #F7F8FA; --panel: #FFFFFF; --panel2: #EBECF0; --line: #D3D5DB; --hair: #D3D5DB; --text: #1F2024; --muted: #6C707E;
  --dim: #A8ADBD; --accent: #F25C1F; --sel: #D4E2FF; --hover: #EBECF0; --blue: #1F7AE0; --drop: #E0218A;
  --warn: #A87B00; --err: #D92B3A; --ok: #1F8A3B; --code: #FFFFFF; --stage: #EEF0F3; --dot: #DCDFE4;
  --c-kw: #0033B3; --c-str: #067D17; --c-com: #8C8C8C; --c-num: #1750EB; --c-fn: #00627A; --c-mac: #9E880D;
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body { display: grid; grid-template-rows: 40px minmax(0, 1fr) 26px; background: var(--bg); color: var(--text);
  font: 13px/1.4 var(--font); overflow: hidden; }
button, input, select, textarea { font: inherit; color: inherit; }
[hidden] { display: none !important; }
a { color: inherit; }
svg { width: 16px; height: 16px; fill: currentColor; flex: none; }

/* the bar along the top */
.top { display: flex; align-items: center; gap: 8px; padding: 0 10px; background: var(--panel); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 7px; text-decoration: none; white-space: nowrap; color: var(--muted); }
.brand b { color: var(--text); font-weight: 600; }
.menu { display: flex; align-items: center; gap: 2px; margin-left: 10px; }
.menu button, .help { border: 0; background: none; padding: 4px 9px; border-radius: 6px; cursor: pointer; text-decoration: none; }
.menu button:hover, .help:hover { background: var(--hover); }
.menu button.strong { background: var(--accent); color: var(--accent-t); font-weight: 600; margin-left: 4px; }
.menu button.strong:hover { filter: brightness(1.08); background: var(--accent); }
.sep { width: 1px; height: 18px; background: var(--hair); margin: 0 6px; }
.menu { position: relative; }
.pop { position: absolute; top: 34px; left: 150px; z-index: 20; display: flex; flex-direction: column; min-width: 300px; padding: 4px;
  border: 1px solid var(--hair); border-radius: 8px; background: var(--panel); box-shadow: 0 10px 30px rgba(0, 0, 0, .35); }
.pop button { text-align: left; padding: 6px 10px; border: 0; border-radius: 5px; background: none; cursor: pointer; }
.pop button:hover { background: var(--hover); }
.pop button:disabled { opacity: .5; cursor: default; }
.pop-note { margin: 4px 10px 6px; color: var(--muted); font-size: 12px; }
.title { flex: 1; text-align: center; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
button.icon { display: inline-grid; place-items: center; width: 28px; height: 28px; padding: 0; border: 0; border-radius: 6px; background: none; cursor: pointer; }
button.icon:hover { background: var(--hover); }
button.icon[aria-pressed="true"] { background: var(--sel); color: var(--blue); }
button:disabled { opacity: .4; cursor: default; }
.run { display: inline-flex; align-items: center; gap: 5px; padding: 4px 12px; border-radius: 6px; border: 1px solid var(--hair); background: none; cursor: pointer; font-weight: 600; }
.run svg { color: var(--ok); }
.run:hover { background: var(--hover); }
.run.on { background: var(--err); border-color: var(--err); color: #fff; }
.run.on svg { color: #fff; }

/* the panels */
.ide { display: grid; grid-template-columns: 216px 220px minmax(0, 1fr) 296px; min-height: 0; background: var(--line); gap: 1px; }
.col { display: flex; flex-direction: column; gap: 1px; min-height: 0; }
.panel { display: flex; flex-direction: column; background: var(--panel); min-height: 0; }
.panel.grow { flex: 1; }
#p-project { max-height: 42%; flex: none; }
h2 { display: flex; align-items: center; justify-content: space-between; margin: 0; padding: 7px 10px 5px; font-size: 12px; font-weight: 600; color: var(--muted); }
.scroll { overflow: auto; min-height: 0; flex: 1; padding-bottom: 6px; }
#pal-search { margin: 0 8px 6px; padding: 3px 8px; border: 1px solid var(--hair); border-radius: 6px; background: var(--bg); }
.pal-group { padding: 8px 10px 3px; font-size: 11px; font-weight: 600; color: var(--dim); text-transform: uppercase; letter-spacing: .04em; }
.pal-item { display: flex; align-items: center; gap: 8px; margin: 0 6px; padding: 4px 6px; border-radius: 5px; cursor: grab; user-select: none; touch-action: none; }
.pal-item:hover { background: var(--hover); }
.pal-item svg { color: var(--muted); }

/* the tree and the project */
.row { display: flex; align-items: center; gap: 6px; min-height: 24px; margin: 0 4px; padding: 1px 6px; border-radius: 5px; cursor: default; user-select: none; white-space: nowrap; }
.row:hover { background: var(--hover); }
.row.on { background: var(--sel); }
.row svg { color: var(--muted); }
.row .name { overflow: hidden; text-overflow: ellipsis; flex: 1; min-width: 0; }
.row .kind { color: var(--dim); font-size: 11px; }
.row .act { display: none; border: 0; background: none; padding: 0 3px; cursor: pointer; color: var(--muted); }
.row:hover .act { display: inline; }
.row .act.keep { display: inline; color: var(--warn); }
.row.drop-before { box-shadow: inset 0 2px 0 var(--drop); }
.row.drop-after { box-shadow: inset 0 -2px 0 var(--drop); }
.row.drop-in { outline: 2px solid var(--drop); outline-offset: -2px; }
.group { display: flex; align-items: center; justify-content: space-between; padding: 7px 10px 2px; font-size: 11px; font-weight: 600; color: var(--dim); text-transform: uppercase; letter-spacing: .04em; }
.group button { border: 0; background: none; cursor: pointer; color: var(--muted); font-size: 15px; line-height: 1; padding: 0 4px; border-radius: 4px; }
.group button:hover { background: var(--hover); color: var(--text); }

/* the editor */
.editor { display: flex; flex-direction: column; min-width: 0; min-height: 0; background: var(--bg); }
.toolbar { display: flex; align-items: center; gap: 6px; height: 36px; padding: 0 8px; background: var(--panel); border-bottom: 1px solid var(--line); }
.fill { flex: 1; }
.seg { display: inline-flex; border: 1px solid var(--hair); border-radius: 6px; overflow: hidden; }
.seg button { border: 0; background: none; padding: 2px 10px; cursor: pointer; }
.seg button + button { border-left: 1px solid var(--hair); }
.seg button[aria-pressed="true"] { background: var(--sel); color: var(--blue); }
#device { max-width: 210px; padding: 3px 6px; border: 1px solid var(--hair); border-radius: 6px; background: var(--panel); }
.size { color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; }
.zoom { min-width: 48px; border: 0; background: none; padding: 3px 4px; border-radius: 6px; cursor: pointer; font-variant-numeric: tabular-nums; }
.zoom:hover { background: var(--hover); }
.panes { flex: 1; display: flex; min-height: 0; }
.panes[data-mode="design"] .codepane, .panes[data-mode="code"] .stage { display: none; }
.panes[data-mode="split"] .stage, .panes[data-mode="split"] .codepane { flex: 1 1 50%; min-width: 0; }
.panes[data-mode="split"] .codepane { border-left: 1px solid var(--line); }
.stage { position: relative; flex: 1; overflow: auto; display: grid; place-items: safe center; padding: 24px; background-color: var(--stage);
  background-image: radial-gradient(var(--dot) 1px, transparent 1px); background-size: 16px 16px; }
.frame { position: relative; box-shadow: 0 0 0 7px #0c0d0f, 0 0 0 8px #3a3c42, 0 14px 44px rgba(0, 0, 0, .45); border-radius: 3px; background: #000; }
#screen { display: block; width: 100%; height: 100%; image-rendering: auto; }
.frame.zoomed #screen { image-rendering: pixelated; }
.overlay { position: absolute; inset: 0; cursor: default; touch-action: none; }
.overlay.running { cursor: pointer; }
.boot { position: absolute; inset: 0; display: grid; place-items: center; color: var(--muted); background: var(--stage); padding: 30px; text-align: center; }
.boot.err { color: var(--err); }
.mark { position: absolute; pointer-events: none; }
.mark.ol { outline: 1px dashed rgba(59, 158, 255, .5); outline-offset: -1px; }
.mark.hover { outline: 1px solid var(--blue); outline-offset: -1px; }
.mark.sel { outline: 2px solid var(--blue); outline-offset: -1px; }
.mark.sel .tag { position: absolute; left: -1px; bottom: 100%; margin-bottom: 2px; padding: 0 5px; border-radius: 3px; background: var(--blue); color: #fff; font-size: 11px; line-height: 16px; white-space: nowrap; }
.mark.sel.low .tag { bottom: auto; top: 100%; margin: 2px 0 0; }
.handle { position: absolute; width: 9px; height: 9px; margin: -5px 0 0 -5px; background: #fff; border: 1.500px solid var(--blue); border-radius: 2px; pointer-events: auto; touch-action: none; }
.mark.dropbox { outline: 2px solid var(--drop); outline-offset: -2px; background: rgba(255, 77, 157, .07); }
.mark.dropline { background: var(--drop); border-radius: 2px; }
.ghost { position: fixed; z-index: 30; padding: 3px 9px; border-radius: 6px; background: var(--blue); color: #fff; font-size: 12px; pointer-events: none; transform: translate(10px, 10px); }
.inline { position: absolute; z-index: 5; min-width: 60px; padding: 1px 4px; border: 2px solid var(--blue); border-radius: 3px; background: var(--panel); color: var(--text); pointer-events: auto; }

/* code */
.codepane { display: flex; flex-direction: column; flex: 1; min-height: 0; min-width: 0; background: var(--code); }
.tabs { display: flex; overflow-x: auto; background: var(--panel); border-bottom: 1px solid var(--line); flex: none; }
.tabs button { flex: none; border: 0; background: none; padding: 6px 12px; cursor: pointer; color: var(--muted); border-bottom: 2px solid transparent; }
.tabs button[aria-selected="true"] { color: var(--text); border-bottom-color: var(--accent); }
.codeview { position: relative; flex: 1; min-height: 0; display: flex; overflow: auto; font: 12.500px/1.55 var(--mono); }
.codeview .gutter { flex: none; padding: 8px 8px 8px 10px; color: var(--dim); text-align: right; user-select: none; position: sticky; left: 0; background: var(--code); }
.codeview pre { flex: 1; margin: 0; padding: 8px 12px 8px 2px; min-width: max-content; }
.codeview .ln { display: block; min-height: 1.550em; }
.codeview .ln.mark-line { background: var(--sel); }
.codeview textarea { flex: 1; width: 100%; border: 0; outline: 0; padding: 8px 12px; resize: none; background: none; font: inherit; tab-size: 4; white-space: pre; }
.t-kw { color: var(--c-kw); } .t-str { color: var(--c-str); } .t-com { color: var(--c-com); font-style: italic; }
.t-num { color: var(--c-num); } .t-fn { color: var(--c-fn); } .t-mac { color: var(--c-mac); }

/* attributes */
.attrs .scroll { padding: 0 0 12px; }
.asec { padding: 9px 10px 3px; font-size: 11px; font-weight: 600; color: var(--dim); text-transform: uppercase; letter-spacing: .04em; border-top: 1px solid var(--line); margin-top: 6px; }
.asec:first-child { border-top: 0; margin-top: 0; }
.field { display: grid; grid-template-columns: 96px minmax(0, 1fr); align-items: center; gap: 6px; padding: 2px 10px; min-height: 28px; }
.field > label { color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.field input[type=text], .field input[type=number], .field select, .field textarea { width: 100%; padding: 3px 6px; border: 1px solid var(--hair); border-radius: 5px; background: var(--bg); }
.field textarea { min-height: 54px; resize: vertical; font-family: var(--font); }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--blue); outline-offset: -1px; border-color: transparent; }
.field input[type=checkbox] { justify-self: start; width: 15px; height: 15px; accent-color: var(--accent); }
.field .pair { display: flex; gap: 4px; }
.field .pair select { flex: 1 1 60%; min-width: 0; }
.field .pair input { flex: 1 1 40%; min-width: 0; }
.field .swatch { flex: none; width: 24px; height: 24px; padding: 0; border: 1px solid var(--hair); border-radius: 5px; background: none; }
.field input[type=color]::-webkit-color-swatch-wrapper { padding: 0; }
.field input[type=color]::-webkit-color-swatch { border: 0; border-radius: 4px; }
.alignpad { display: grid; grid-template-columns: repeat(3, 22px); gap: 2px; }
.alignpad button { width: 22px; height: 22px; border: 1px solid var(--hair); border-radius: 3px; background: none; cursor: pointer; padding: 0; }
.alignpad button[aria-pressed="true"] { background: var(--blue); border-color: var(--blue); }
.note { padding: 3px 10px; color: var(--muted); font-size: 12px; }
.err-text { color: var(--err); font-size: 12px; padding: 0 10px 3px 112px; }

/* problems and the status line */
.problems { display: flex; flex-direction: column; height: 150px; flex: none; background: var(--panel); border-top: 1px solid var(--line); }
.problem { display: flex; gap: 8px; padding: 3px 10px; cursor: pointer; }
.problem:hover { background: var(--hover); }
.problem .sev { flex: none; width: 54px; font-size: 11px; font-weight: 600; }
.problem.error .sev { color: var(--err); } .problem.warning .sev { color: var(--warn); } .problem.info .sev { color: var(--muted); }
.status { display: flex; align-items: center; gap: 12px; padding: 0 10px; background: var(--panel); border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; white-space: nowrap; overflow: hidden; }
.status button { border: 0; background: none; padding: 1px 6px; border-radius: 4px; cursor: pointer; color: inherit; }
.status button:hover { background: var(--hover); }
.status .has-err { color: var(--err); } .status .has-warn { color: var(--warn); }
#pos { font-variant-numeric: tabular-nums; }

/* the dialog */
.dlg { width: 560px; max-width: 94vw; border: 1px solid var(--hair); border-radius: 12px; padding: 16px; background: var(--panel); color: var(--text); }
.dlg::backdrop { background: rgba(0, 0, 0, .5); }
.dlg h2 { padding: 0 0 10px; font-size: 15px; color: var(--text); }
.templates { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.templates button { display: flex; flex-direction: column; gap: 3px; align-items: flex-start; text-align: left; padding: 11px; border: 1px solid var(--hair); border-radius: 9px; background: none; cursor: pointer; }
.templates button:hover { border-color: var(--accent); }
.templates b { font-weight: 600; }
.templates span { color: var(--muted); font-size: 12px; }
.dlg-foot { display: flex; justify-content: flex-end; margin-top: 12px; }
.dlg-foot button { padding: 4px 12px; border: 1px solid var(--hair); border-radius: 6px; background: none; cursor: pointer; }
.narrow { display: none; }
@media (max-width: 899px) {
  body { display: block; }
  .top, .ide, .status { display: none; }
  .narrow { display: grid; place-items: center; height: 100%; padding: 24px; text-align: center; color: var(--muted); }
}

/* the assets: a picture's preview, the buttons of an asset */
.preview { padding: 6px 10px; }
.preview img { display: block; max-width: 100%; max-height: 180px; border: 1px solid var(--border); border-radius: 4px;
  background: repeating-conic-gradient(var(--hover) 0 25%, transparent 0 50%) 0 0 / 12px 12px; }
.btn { border: 1px solid var(--border); background: var(--bg2, transparent); color: var(--text); border-radius: 6px; padding: 4px 12px;
  cursor: pointer; font: inherit; }
.btn:hover { background: var(--hover); }
.pair .icon { flex: none; }