:root{color-scheme:light;--bg: #f5f3ed;--panel: #fbfaf7;--panel-strong: #ffffff;--line: #ddd9d0;--line-soft: #ebe7de;--text: #312e2a;--muted: #756f66;--muted-2: #9a9388;--accent: #e36f4a;--accent-dark: #b84d2d;--danger: #b63f35;--shadow: 0 18px 45px rgba(48, 42, 34, .14);--sidebar-left: 318px;--sidebar-right: 330px;--topbar: 52px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}[hidden]{display:none!important}html,body{min-height:100%;margin:0}body{background:var(--bg);color:var(--text);overflow:hidden}button,input,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}.app-shell{display:grid;grid-template-columns:var(--sidebar-left) minmax(0,1fr) var(--sidebar-right);grid-template-rows:var(--topbar) minmax(0,1fr);height:100vh;background:var(--bg)}.topbar{grid-column:1 / -1;display:grid;grid-template-columns:var(--sidebar-left) minmax(0,1fr) var(--sidebar-right);align-items:center;height:var(--topbar);border-bottom:1px solid var(--line);background:#fbfaf7eb;backdrop-filter:blur(14px);z-index:3}.brand,.top-actions,.top-tabs{display:flex;align-items:center;min-width:0;height:100%}.brand{gap:12px;padding:0 14px;border-right:1px solid var(--line)}.brand-mark{position:relative;display:grid;place-items:center;width:32px;height:32px;border:1px solid var(--line);border-radius:9px;background:var(--panel-strong);box-shadow:0 1px 2px #302a2214}.brand-mark span{position:absolute;width:5px;height:5px;border-radius:999px;background:var(--accent)}.brand-mark span:nth-child(1){transform:translate(-6px,-6px)}.brand-mark span:nth-child(2){transform:translate(6px,-5px)}.brand-mark span:nth-child(3){transform:translate(-5px,6px)}.brand-mark span:nth-child(4){width:14px;height:14px;border:2px solid var(--accent);background:transparent}.brand-title{min-width:0;overflow:hidden;color:var(--text);font-size:15px;font-weight:650;text-overflow:ellipsis;white-space:nowrap}.top-tabs{overflow:hidden}.tab{display:inline-flex;align-items:center;gap:8px;align-self:stretch;min-width:150px;max-width:240px;padding:0 18px;border-right:1px solid var(--line);color:var(--muted);font-size:13px;white-space:nowrap}.tab.active{justify-content:space-between;border-inline:1px solid var(--line);border-bottom:1px solid var(--panel);border-radius:0 0 12px 12px;background:var(--panel);color:var(--text)}.tab.active:after{content:"x";color:var(--muted-2)}.tab.muted{color:var(--muted)}.folder-glyph{width:13px;height:10px;border:1px solid var(--line);border-radius:2px}.top-actions{justify-content:flex-end;gap:10px;padding:0 14px;border-left:1px solid var(--line)}.text-button,.share-button,.primary-button,.secondary-button,.danger-button,.zoom-readout,.mode-button{border:1px solid transparent;border-radius:8px;background:transparent;color:var(--text);font-weight:600}.text-button{color:var(--muted)}.share-button{padding:7px 13px;background:#211f1c;color:#fff;box-shadow:0 3px 10px #231e1a2e;font-size:13px}.share-button.disabled{pointer-events:none;opacity:.44}.avatar{display:grid;place-items:center;width:31px;height:31px;border:1px solid #d4c7b6;border-radius:999px;background:#e9dfd0;color:#756551;font-size:13px;font-weight:700}.library-sidebar,.details-sidebar{min-height:0;overflow:auto;background:var(--panel)}.library-sidebar{grid-column:1;grid-row:2;border-right:1px solid var(--line)}.details-sidebar{grid-column:3;grid-row:2;border-left:1px solid var(--line)}.sidebar-head,.details-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 18px 14px}.sidebar-head h1,.details-header h2,.details-empty h2{margin:2px 0 0;font-size:18px;line-height:1.15}.eyebrow{margin:0;color:var(--muted-2);font-size:11px;font-weight:750;letter-spacing:0;text-transform:uppercase}.icon-button{position:relative;display:inline-grid;place-items:center;flex:0 0 auto;width:32px;height:32px;border:1px solid var(--line);border-radius:8px;background:var(--panel-strong);color:var(--muted);box-shadow:0 1px 2px #302a220f}.icon-button:hover,.secondary-button:hover,.mode-button:hover,.zoom-readout:hover{border-color:#cec7bb;background:#f3f0ea}.plus-icon,.minus-icon,.external-icon{position:relative;display:block;width:14px;height:14px}.plus-icon:before,.plus-icon:after,.minus-icon:before{content:"";position:absolute;inset:6px 1px auto;height:2px;border-radius:999px;background:currentColor}.plus-icon:after{transform:rotate(90deg)}.external-icon:before{content:"";position:absolute;right:1px;top:1px;width:8px;height:8px;border-top:2px solid currentColor;border-right:2px solid currentColor}.external-icon:after{content:"";position:absolute;left:2px;bottom:2px;width:9px;height:9px;border-left:2px solid currentColor;border-bottom:2px solid currentColor}.upload-card{margin:0 14px 12px;padding:14px;border:1px solid var(--line);border-radius:10px;background:#f0ece4;transition:border-color .16s ease,background-color .16s ease}.upload-card.dragover{border-color:var(--accent);background:#fff8f2}.upload-card input{display:none}.repo-card{background:#f3efe7}.upload-copy{display:grid;gap:2px;color:var(--muted);font-size:13px}.upload-copy strong{color:var(--text);font-size:14px}.upload-actions,.form-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.primary-button,.secondary-button,.danger-button,.zoom-readout,.mode-button{min-height:32px;padding:0 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8px;color:var(--muted-2);font-size:11px;font-weight:750;letter-spacing:0;text-transform:uppercase}.folder-tree,.related-list{display:grid;gap:2px}.folder-row,.file-row,.related-row{display:grid;grid-template-columns:18px minmax(0,1fr);gap:8px;align-items:center;width:100%;min-height:34px;padding:5px 8px 5px calc(8px + var(--depth, 0) * 14px);border:1px solid transparent;border-radius:7px;background:transparent;color:var(--text);text-align:left}.folder-row{font-weight:650}.file-row,.related-row{grid-template-columns:18px minmax(0,1fr);color:var(--muted)}.file-row:hover,.file-row.active,.folder-row:hover,.related-row:hover,.related-row.active{border-color:var(--line-soft);background:#f3f0ea}.file-row.active,.related-row.active{color:var(--text)}.tree-icon{position:relative;width:15px;height:12px;border:1px solid currentColor;border-radius:3px;color:var(--muted-2)}.tree-icon.folder:before{content:"";position:absolute;left:-1px;top:-5px;width:8px;height:5px;border:1px solid currentColor;border-bottom:0;border-radius:3px 3px 0 0;background:inherit}.tree-icon.file{height:16px;border-radius:2px}.tree-icon.file:before{content:"";position:absolute;right:-1px;top:-1px;width:6px;height:6px;border-left:1px solid currentColor;border-bottom:1px solid currentColor;background:var(--panel)}.row-copy{min-width:0}.row-copy strong,.row-copy span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.row-copy strong{font-size:13px;font-weight:650}.row-copy span{margin-top:1px;color:var(--muted-2);font-size:11px}.folder-children[hidden]{display:none}.workspace{grid-column:2;grid-row:2;display:grid;grid-template-rows:42px minmax(0,1fr);min-width:0;min-height:0}.canvas-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 18px;border-bottom:1px solid var(--line-soft);background:#fbfaf78f;color:var(--muted)}.zoom-controls,.mode-switch{display:inline-flex;align-items:center;gap:6px}.zoom-value{min-width:44px;color:var(--muted);font-size:13px;font-weight:650;text-align:center}.mode-button{min-height:28px;color:var(--muted)}.mode-button.active{border-color:transparent;background:transparent;color:var(--text)}.canvas-board{position:relative;min-height:0;overflow:auto;background-image:linear-gradient(rgba(49,46,42,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(49,46,42,.045) 1px,transparent 1px);background-size:48px 48px}.empty-state{position:absolute;left:50%;top:42%;width:min(460px,calc(100% - 48px));transform:translate(-50%,-50%);padding:26px;border:1px solid var(--line);border-radius:12px;background:#fbfaf7e6;box-shadow:0 8px 30px #302a2217}.empty-state h2{margin:5px 0 8px;font-size:24px}.empty-state p:last-child{margin:0;color:var(--muted);line-height:1.5}.frame-stage{display:grid;justify-content:center;min-width:100%;min-height:100%;padding:54px 68px 90px}.frame-shell{width:calc(1120px * var(--zoom, 1));height:calc(820px * var(--zoom, 1));overflow:hidden;border:1px solid #d4cec2;border-radius:2px;background:#fff;box-shadow:var(--shadow)}.frame-shell iframe{display:block;width:1120px;height:820px;border:0;background:#fff;transform:scale(var(--zoom, 1));transform-origin:top left}.details-empty{padding:22px 18px}.details-panel{padding-bottom:18px}.details-header{align-items:flex-start}.details-header h2,.details-empty h2{overflow-wrap:anywhere}.details-form{display:grid;gap:13px;padding:0 18px 18px}.description-block{display:grid;gap:6px}.description-block span{color:var(--muted);font-size:12px;font-weight:650}.description-block p{margin:0;min-height:76px;padding:10px;border:1px solid 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strong{margin-top:4px;color:var(--text);font-size:12px}.related-section{border-top:1px solid var(--line-soft);padding-top:15px}.related-row{padding-left:8px}.toast{position:fixed;left:50%;bottom:22px;z-index:20;max-width:min(420px,calc(100vw - 32px));padding:10px 14px;border:1px solid rgba(33,31,28,.16);border-radius:10px;background:#211f1ceb;color:#fff;box-shadow:0 12px 30px #211f1c3d;font-size:13px;opacity:0;pointer-events:none;transform:translate(-50%,10px);transition:opacity .16s ease,transform .16s ease}.toast.show{opacity:1;transform:translate(-50%)}.viewer-body{overflow:hidden;background:#111}.clean-viewer{width:100vw;height:100vh;background:#111}.clean-viewer iframe{display:block;width:100%;height:100%;border:0;background:#fff}.clean-empty{position:absolute;left:50%;top:50%;width:min(420px,calc(100vw - 40px));transform:translate(-50%,-50%);padding:24px;border:1px solid rgba(255,255,255,.16);border-radius:12px;background:#1f1d1a;color:#fff}.clean-empty h1{margin:6px 0 16px;font-size:24px}.clean-empty a{color:#ffd1c2;font-weight:700}@media(max-width:1180px){:root{--sidebar-left: 286px;--sidebar-right: 300px}.frame-stage{padding-inline:38px}}@media(max-width:920px){body{overflow:auto}.app-shell{grid-template-columns:minmax(0,1fr);grid-template-rows:var(--topbar) auto minmax(520px,1fr) auto;min-height:100vh;height:auto}.topbar{grid-template-columns:minmax(0,1fr)}.brand{border-right:0}.top-tabs,.top-actions{display:none}.library-sidebar,.workspace,.details-sidebar{grid-column:1;grid-row:auto;border:0}.library-sidebar,.details-sidebar{max-height:none}.canvas-toolbar{position:sticky;top:0;z-index:2}.mode-switch{display:none}.frame-stage{justify-content:start;padding:24px}.detail-grid{grid-template-columns:1fr}}