:root{--bg: #0b0e12;--panel: #141922;--panel-2: #1b2230;--border: #2a3344;--text: #d7dce4;--dim: #8b94a3;--accent: #ffd23f;--ghost: #4ade80;--good: #4ade80;--close: #fbbf24;--off: #f87171}*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:15px}button{font:inherit}.btn{border:1px solid var(--border);background:var(--panel-2);color:var(--text);border-radius:8px;padding:8px 14px;cursor:pointer}.btn:hover{border-color:var(--dim)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#1a1500;font-weight:600}.btn.primary:hover{filter:brightness(1.06)}.btn.big{padding:12px 26px;font-size:17px}.btn.subtle{background:transparent}.btn.seg{border-radius:0;padding:7px 16px}.btn.seg:first-child{border-radius:8px 0 0 8px}.btn.seg:last-child{border-radius:0 8px 8px 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8px;font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--dim)}.instructions-body h3:first-child{margin-top:0}.coverage-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}.coverage-list li{display:grid;gap:2px;padding:8px 10px;border-radius:8px;background:var(--panel-2);font-size:13.5px;line-height:1.45}.coverage-list li{border:1px solid transparent}.coverage-list li.active{border-color:var(--accent);background:#232a1a}.coverage-list strong{text-transform:capitalize;font-size:12.5px;color:var(--dim)}.coverage-list li.active strong{color:var(--accent)}.parameters{display:grid;gap:4px}.param-row{display:grid;grid-template-columns:1fr auto;align-items:center;gap:8px;font-size:13px}.param-label{color:var(--text)}.param-control{display:inline-flex;align-items:center;gap:4px}.param-control input{width:58px;min-height:32px;font:inherit;font-variant-numeric:tabular-nums;text-align:right;color:var(--text);background:var(--bg);border:1px solid 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