.header{min-height:var(--header-h);padding:4px 10px;padding-top:calc(4px + env(safe-area-inset-top));padding-left:calc(10px + env(safe-area-inset-left));padding-right:calc(10px + env(safe-area-inset-right));border-bottom:1px solid var(--border);background:var(--surface);flex:none;align-items:center;gap:8px;display:flex}.header--compact{padding-left:calc(8px + env(safe-area-inset-left));padding-right:calc(4px + env(safe-area-inset-right));gap:2px}.header__brand{flex:none;align-items:center;gap:8px;display:inline-flex}.header__title{letter-spacing:.01em;white-space:nowrap;font-size:15px;font-weight:700}.header__name{border-radius:var(--radius-sm);text-overflow:ellipsis;background:0 0;border:1px solid #0000;flex:0 260px;min-width:80px;height:32px;padding:0 8px;font-weight:600}.header--compact 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.chip{text-overflow:ellipsis;overflow:hidden}.chip--busy{background:var(--accent-soft);color:var(--accent)}.chip--warn{background:var(--warn-soft);color:var(--warn)}.preview__controls{flex:none;align-items:center;gap:2px;display:flex}.preview__zoom{text-align:center;font-variant-numeric:tabular-nums;min-width:46px;font-size:13px}.preview__viewport{cursor:grab;touch-action:none;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;color:#1c2026;flex:1;min-height:0;position:relative;overflow:hidden}.preview__viewport.is-dragging{cursor:grabbing}.preview__viewport:focus-visible{outline-offset:-3px}.preview__viewport.is-checker{background-color:#fff;background-image:linear-gradient(45deg,#e3e6ea 25%,#0000 25% 75%,#e3e6ea 75%),linear-gradient(45deg,#e3e6ea 25%,#0000 25% 75%,#e3e6ea 75%);background-position:0 0,10px 10px;background-size:20px 20px}:root[data-theme=dark] .preview__viewport.is-checker{background-color:#2b2f36;background-image:linear-gradient(45deg,#3a3f48 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solid #0000;min-height:56px}.app[data-short=true] .mnav__tab.is-active{border-left-color:var(--accent)}.split{width:100%;min-width:0;height:100%;display:flex}.split__pane{flex:none;min-width:0;min-height:0;overflow:hidden}.split__pane--grow{flex:1 1 0}.split.is-resizing{cursor:col-resize;-webkit-user-select:none;user-select:none}.split.is-resizing .split__pane{pointer-events:none}.split__handle{z-index:5;cursor:col-resize;touch-action:none;background:var(--border);background-clip:content-box;flex:none;justify-content:center;align-items:center;width:10px;margin:0 -1px;padding:0 4px;display:flex;position:relative}.split__handle:hover,.split__handle:focus-visible,.split.is-resizing .split__handle{background-color:var(--accent)}.split__grip{background:var(--border-strong);border-radius:2px;width:4px;height:36px;position:absolute}.split__handle:hover .split__grip,.split__handle:focus-visible .split__grip{background:var(--on-accent)}@media (pointer:coarse){.split__handle{width:24px;margin:0 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