:root{--bg:#fafafa;--surface:#fff;--border:#e5e7eb;--border-strong:#cbd5e1;--text:#0f172a;--text-soft:#475569;--text-muted:#64748b;--accent:#111827;--accent-soft:#1118271f;--code-bg:#f8fafc;--mono:ui-monospace, SFMono-Regular, "JetBrains Mono", Menlo, Monaco, Consolas, monospace;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Inter,sans-serif}*{box-sizing:border-box}body{min-height:100vh;margin:0}button,input,select{font:inherit;color:inherit}button{cursor:pointer}.app{flex-direction:column;gap:20px;width:min(1200px,100vw - 32px);margin:0 auto;padding:32px 0 48px;display:flex}.app-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px 16px;display:flex}.app-header h1{letter-spacing:-.01em;margin:0;font-size:18px;font-weight:650}.app-header p{color:var(--text-muted);margin:4px 0 0;font-size:13px}.app-header code{font-family:var(--mono);background:var(--surface);border:1px solid var(--border);white-space:nowrap;border-radius:4px;padding:1px 6px;font-size:12px}.header-actions{align-items:center;gap:10px;display:flex}.phase{height:32px;font-family:var(--mono);color:var(--text-muted);background:var(--surface);border:1px solid var(--border);border-radius:6px;align-items:center;padding:0 12px;font-size:12px;display:inline-flex}#replay-button{border:1px solid var(--accent);background:var(--accent);color:#fff;border-radius:6px;height:32px;padding:0 14px;font-size:13px;font-weight:550;transition:filter .12s}#replay-button:hover{filter:brightness(1.08)}#replay-button:active{filter:brightness(.94)}.app-body{grid-template-columns:280px minmax(0,1fr);align-items:start;gap:16px;display:grid}@media (width<=920px){.app-body{grid-template-columns:1fr}}.controls{flex-direction:column;gap:12px;display:flex}.controls fieldset{border:1px solid var(--border);background:var(--surface);border-radius:8px;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 12px;margin:0;padding:12px 14px 14px;display:grid}.controls legend{letter-spacing:.06em;text-transform:uppercase;color:var(--text-muted);padding:0 4px;font-size:11px;font-weight:600}.controls label{min-width:0;color:var(--text-soft);gap:4px;font-size:12px;display:grid}.controls label.wide{grid-column:1/-1}.controls label>span{color:var(--text-muted);font-size:11px}.controls input,.controls select{border:1px solid var(--border);background:var(--surface);width:100%;height:30px;color:var(--text);font-variant-numeric:tabular-nums;border-radius:5px;padding:0 8px;font-size:13px;transition:border-color .12s,box-shadow .12s}.controls input:hover,.controls select:hover{border-color:var(--border-strong)}.controls input:focus,.controls select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);outline:none}.controls select{appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'><path d='M1 1l4 4 4-4' fill='none' stroke='%2364748b' stroke-width='1.4' stroke-linecap='round' stroke-linejoin='round'/></svg>");background-position:right 8px center;background-repeat:no-repeat;padding-right:24px}.controls input[type=color]{padding:3px}.controls label.checkbox{color:var(--text);cursor:pointer;flex-direction:row;grid-column:1/-1;align-items:center;gap:8px;font-size:12px;display:flex}.controls label.checkbox input{width:14px;height:14px;accent-color:var(--accent);margin:0;padding:0}.content{flex-direction:column;gap:16px;display:flex}.stage{background:var(--surface);border:1px solid var(--border);border-radius:8px;justify-content:center;align-items:center;min-height:320px;padding:24px;display:flex}.trace-svg{width:100%;height:auto;max-height:360px;color:var(--text);transition:transform .6s cubic-bezier(.5,.05,.2,1)}.usage{background:var(--surface);border:1px solid var(--border);border-radius:8px;overflow:hidden}.usage-tabs{border-bottom:1px solid var(--border);background:var(--surface);align-items:center;gap:2px;padding:6px 6px 0;display:flex}.usage-tabs button{height:30px;color:var(--text-muted);background:0 0;border:1px solid #0000;border-bottom:none;border-radius:6px 6px 0 0;margin-bottom:-1px;padding:0 12px;font-size:12px;font-weight:550;transition:color .12s,background .12s}.usage-tabs button:hover{color:var(--text)}.usage-tabs button[aria-selected=true]{color:var(--text);background:var(--code-bg);border-color:var(--border)}.usage-tabs .copy{border:1px solid var(--border);background:var(--surface);height:26px;color:var(--text-soft);border-radius:5px;margin-bottom:4px;margin-left:auto;padding:0 10px;font-size:11px;font-weight:550;transition:background .12s,color .12s}.usage-tabs .copy:hover{background:var(--code-bg);color:var(--text)}.usage-tabs .copy[data-state=copied]{color:var(--accent);border-color:var(--accent)}.usage-code{display:none}.usage-code[data-active=true]{display:block}.usage-code pre,.usage-code .shiki{font-family:var(--mono);tab-size:2;margin:0;padding:14px 16px;font-size:12.5px;line-height:1.6;overflow-x:auto}.usage-code .shiki code{font-family:inherit}