:root{--accent: #e3382a;--accent-soft: rgba(227, 56, 42, .14)}*{box-sizing:border-box}html,body,#embed{height:100%;margin:0}body{background:#0d0e12;color:#e6e8ec;font:13px/1.5 ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}#embed{display:flex;flex-direction:column}#chart{flex:1;min-height:0}.demo-banner{display:flex;align-items:center;padding:8px 14px;background:var(--accent-soft);border-bottom:1px solid rgba(227,56,42,.35);color:#f2b3ad;font-size:12.5px}.demo-banner strong{color:#ff8a7e;font-weight:700}