:root{--bg:#f6f6f3;--card:#fff;--fg:#1c1c1e;--muted:#6b6b70;--line:#e3e3de;--accent:#2f6fdf;--low:#2e8b57;--elevated:#c98a14;--high:#c0392b}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#121214;--card:#1c1c1f;--fg:#f2f2f5;--muted:#a0a0a8;--line:#2e2e33;--accent:#6b9cff;--low:#4cc38a;--elevated:#f0b445;--high:#ff6b5b}}*{box-sizing:border-box}body{background:var(--bg);color:var(--fg);margin:0;font:16px/1.5 system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Noto Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif}header,main,footer{max-width:920px;margin:0 auto;padding:0 16px}header{padding-top:28px}h1{margin:0 0 4px;font-size:28px}h2{margin:0 0 12px;font-size:18px}.lede,.muted{color:var(--muted)}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;margin:16px 0;padding:18px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}@media (max-width:640px){.grid2{grid-template-columns:1fr}}.drop{display:block;border:1px dashed var(--line);border-radius:10px;padding:12px;font-size:14px}.drop input{display:block;max-width:100%;margin-top:8px}.row{display:flex;flex-wrap:wrap;align-items: center;gap:12px;margin-top:12px}input[type=number]{border:1px solid var(--line);background:var(--card);color:var(--fg);border-radius:6px;width:72px;padding:6px}button{font:inherit;border:1px solid var(--line);background:var(--card);color:var(--fg);cursor:pointer;border-radius:8px;padding:8px 14px}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button:disabled{opacity:.5;cursor:default}.samples button{font-size:14px}.status{color:var(--muted);min-height:1.5em;font-size:14px}.tips{margin-top:12px;font-size:14px}.tips summary{cursor:pointer;color:var(--muted)}.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px}.metric{border:1px solid var(--line);border-radius:10px;padding:10px}.metric .v{font-size:24px;font-weight:600}.metric .k{color:var(--muted);font-size:13px}.metric .n{color:var(--muted);font-size:12px}.tier{margin-bottom:10px;font-size:22px;font-weight:700}.tier.low{color:var(--low)}.tier.elevated{color:var(--elevated)}.tier.high{color:var(--high)}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:14px}th,td{text-align:left;border-bottom:1px solid var(--line);vertical-align:top;padding:8px}td.r-low{color:var(--low);font-weight:600}td.r-elevated{color:var(--elevated);font-weight:600}td.r-high{color:var(--high);font-weight:600}.strip{display:flex;overflow-x:auto;gap:6px;margin-bottom:10px}.strip canvas{border-radius:6px;flex:none;height:180px}svg.signal{display:block;width:100%;height:auto;margin-top:8px}.assess h3{margin:14px 0 6px;font-size:15px}.assess ul{margin:0;padding-left:20px}.headline{font-size:18px;font-weight:600}footer{padding-bottom:32px;font-size:13px}