/* ============================================================================
   UI Lab Preview Viewer — lab chrome only (never loaded by the demos).
   ========================================================================== */
:root {
    --vw-bg: #161616;
    --vw-bar: #232323;
    --vw-line: #3a3a3a;
    --vw-text: #e8e8e8;
    --vw-muted: #9a9a9a;
    --vw-accent: #991d22;
    --vw-ok: #3f6b2a;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
    background: var(--vw-bg);
    color: var(--vw-text);
    font-family: var(--lab-sans, "Segoe UI", Candara, sans-serif);
    font-size: 14px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.vw-bar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 18px;
    padding: 10px 16px;
    background: var(--vw-bar);
    border-bottom: 1px solid var(--vw-line);
    font: 12px var(--lab-mono, ui-monospace, monospace);
}
.vw-group { display: inline-flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.vw-label { color: var(--vw-muted); margin-right: 2px; text-transform: uppercase; letter-spacing: 0.08em; }
.vw-bar button {
    font: inherit;
    padding: 6px 10px;
    min-height: 32px;
    background: #333;
    color: var(--vw-text);
    border: 1px solid #555;
    cursor: pointer;
}
.vw-bar button:hover { background: #3d3d3d; }
.vw-bar button[aria-pressed="true"] { background: var(--vw-accent); border-color: #c9474d; color: #fff; }
.vw-bar button:disabled { opacity: 0.4; cursor: not-allowed; }
.vw-bar button:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.vw-actions { margin-left: auto; display: inline-flex; align-items: center; gap: 14px; }
.vw-actions a { color: #cfcfcf; }

.vw-stage {
    flex: 1 1 auto;
    overflow: auto;
    padding: 16px;
    background:
        repeating-conic-gradient(#1c1c1c 0% 25%, #191919 0% 50%) 50% / 24px 24px;
}
.vw-track {
    width: max-content;
    margin: 0 auto;
    display: flex;
    align-items: flex-start;
    gap: 24px;
}

.vw-frame { margin: 0; flex: 0 0 auto; min-width: 0; }
.vw-cap {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 2px 12px;
    padding: 0 2px 6px;
    font: 11px var(--lab-mono, monospace);
    color: #d8d8d8;
    overflow-wrap: anywhere;
}
.vw-cap b { font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
.vw-cap span { color: var(--vw-muted); }

.vw-viewport {
    position: relative;
    overflow: hidden;
    background: #fff;
    border: 1px solid #444;
    box-shadow: 0 0 0 1px #111;
}
.vw-scaler {
    position: absolute;
    top: 0;
    left: 0;
    transform-origin: top left;
}
.vw-scaler iframe {
    display: block;
    border: 0;
    background: #fff;
}

.vw-meta {
    margin: 0;
    padding: 8px 16px;
    border-top: 1px solid var(--vw-line);
    background: var(--vw-bar);
    color: var(--vw-muted);
    font: 11px var(--lab-mono, monospace);
    display: flex;
    flex-wrap: wrap;
    gap: 6px 18px;
}
.vw-meta b { color: var(--vw-text); font-weight: 600; }