.device-preview-controls{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:20px}
.device-preview-controls .button[aria-pressed="true"]{background:#163e71;border-color:#163e71;color:white}
.device-preview-controls span{color:#64748b;font-size:13px;margin-left:8px}
.device-preview-stage{display:flex;justify-content:center;overflow:auto;padding:24px;background:#dce3eb;border-radius:14px;min-height:740px}
.device-preview-shell{flex:none;max-width:none;height:760px;background:#fff;border:8px solid #172b40;border-radius:18px;box-shadow:0 16px 48px #172b4025;overflow:hidden;transition:width .18s ease}
.device-preview-shell iframe{display:block;width:100%;height:100%;border:0;background:#f3f5f8}
@media(max-width:700px){.device-preview-stage{justify-content:flex-start;padding:12px}.device-preview-shell{border-width:5px}.device-preview-controls span{width:100%;margin-left:0}}