:root{--text:#2b2733;--text-dim:#6b6375;--bg:#fff;--panel-bg:#f7f6f3;--border:#e5e4e7;--accent:#aa3bff;--accent-dim:#aa3bff26;--success:#1a9c5b;--warn:#b8860b;--error:#d63b3b;--font:system-ui, -apple-system, "Segoe UI", Roboto, sans-serif}*{box-sizing:border-box}body{font-family:var(--font);color:var(--text);background:var(--bg);margin:0}#app{max-width:960px;margin:0 auto;padding:2rem 1.5rem 4rem}.app-header h1{margin:0 0 .25rem;font-size:1.75rem}.app-header .subtitle{color:var(--text-dim);margin:0 0 2rem}.layout{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.25rem;display:grid}.panel{border:1px solid var(--border);background:var(--panel-bg);border-radius:10px;padding:1.25rem}.panel h2{margin:0 0 1rem;font-size:1.05rem}.controls-panel,.log-panel,.report-panel{grid-column:span 2}@media (width<=720px){.layout{grid-template-columns:1fr}.controls-panel,.log-panel,.report-panel,.panel{grid-column:span 1}}.button-row{flex-wrap:wrap;gap:.75rem;margin-bottom:1.25rem;display:flex}button{border:1px solid var(--border);background:var(--bg);color:var(--text);cursor:pointer;border-radius:8px;padding:.6rem 1.1rem;font-family:inherit;font-size:.95rem;transition:background .15s,border-color .15s}button:hover:not(:disabled){border-color:var(--accent);background:var(--accent-dim)}button:disabled{opacity:.45;cursor:not-allowed}#start-btn{border-color:var(--accent);background:var(--accent);color:#fff}#start-btn:hover:not(:disabled){background:#9526e6}.meter-block{align-items:center;gap:.75rem;display:flex}.meter-label{color:var(--text-dim);white-space:nowrap;font-size:.85rem}.meter-track{background:var(--border);border-radius:7px;flex:1;height:14px;overflow:hidden}.meter-fill{background:linear-gradient(90deg, var(--accent), var(--success));width:0%;height:100%;transition:width .1s linear}.status-panel{flex-direction:column;gap:.5rem;margin:0;display:flex}.status-row{border-bottom:1px dashed var(--border);justify-content:space-between;gap:1rem;padding-bottom:.4rem;font-size:.9rem;display:flex}.status-row dt{color:var(--text-dim)}.status-row dd{text-align:right;word-break:break-word;max-width:60%;margin:0}.diagnostic-log{color:#ddd8e6;background:#14121a;border-radius:8px;height:220px;padding:.75rem;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:.8rem;line-height:1.5;overflow-y:auto}.log-line{white-space:pre-wrap;word-break:break-word}.log-info{color:#ddd8e6}.log-success{color:#6ee7a8}.log-warn{color:#f0c674}.log-error{color:#f27979}.report-output{white-space:pre-wrap;background:var(--bg);border:1px solid var(--border);border-radius:8px;margin:0;padding:1rem;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:.9rem}