:root{color-scheme:dark;--navy:#06152c;--raised:#102746;--line:#294462;--red:#d71920;--text:#f5f7fb;--muted:#9fb0c5;--green:#31b87a}*{box-sizing:border-box}body{margin:0;background:linear-gradient(145deg,#030b18,#0a1d38);color:var(--text);font-family:Inter,Segoe UI,sans-serif;min-height:100vh}header{height:68px;padding:0 max(18px,5vw);display:flex;align-items:center;justify-content:space-between;background:var(--navy);border-bottom:2px solid var(--red)}header b{font-size:25px}header span,.eyebrow{font-size:11px;letter-spacing:1.6px;color:var(--muted)}main{max-width:1050px;margin:24px auto;padding:0 16px;display:grid;gap:16px}.card{background:rgba(16,39,70,.94);border:1px solid var(--line);border-radius:12px;padding:18px}.auth,.row{display:flex;gap:10px;align-items:end;justify-content:space-between}.auth label{flex:1}.radio{display:grid;grid-template-columns:1fr 310px;gap:24px}.frequency{font-size:clamp(42px,8vw,76px);font-weight:300;letter-spacing:3px}.meters{display:grid;gap:12px}progress{width:100%;accent-color:var(--red)}.controls{display:grid;grid-template-columns:1fr auto 1fr auto;gap:12px;align-items:end}label{display:grid;gap:6px;color:var(--muted);font-size:12px}input,select,button{border:1px solid var(--line);border-radius:7px;padding:10px;background:#071a33;color:var(--text)}button{cursor:pointer;font-weight:600}button:not(:disabled):hover{border-color:var(--red)}button:disabled{opacity:.4;cursor:not-allowed}#presence.online{color:var(--green)}#audit{max-height:260px;overflow:auto;font-size:12px;color:var(--muted)}.audit-row{padding:8px 0;border-bottom:1px solid var(--line)}.table-wrap{overflow:auto;margin-top:12px}table{width:100%;border-collapse:collapse;font-size:13px}th,td{text-align:left;padding:8px;border:1px solid var(--line);white-space:nowrap}th{color:var(--muted);font-size:11px;letter-spacing:1px}@media(max-width:760px){.radio{grid-template-columns:1fr}.controls{grid-template-columns:1fr 1fr}.auth{align-items:stretch;flex-direction:column}}