:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#e5e7eb;background:#0b1020}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at top,#1f2937 0,#0b1020 52%)}button,input,select{font:inherit}.shell{min-height:100vh;display:grid;place-items:center;padding:20px}.card{width:min(100%,520px);background:#111827f0;border:1px solid #374151;border-radius:22px;padding:24px;box-shadow:0 30px 80px #00000059}header{display:flex;align-items:center;gap:14px;margin-bottom:26px}.beacon-mark{width:50px;height:50px;border-radius:16px;display:grid;place-items:center;font-weight:900;font-size:24px;background:#f59e0b;color:#111827}h1{margin:0;font-size:25px}header p{margin:3px 0 0;color:#9ca3af}label{display:grid;gap:7px;margin:16px 0;font-weight:650}input,select{width:100%;border:1px solid #4b5563;border-radius:12px;background:#111827;color:#f9fafb;padding:13px 14px;outline:none}input:focus,select:focus{border-color:#f59e0b}.password-field{position:relative}.password-field input{padding-right:48px}.password-toggle{position:absolute;top:50%;right:8px;transform:translateY(-50%);width:36px;height:36px;border-radius:9px;background:transparent;color:#d1d5db;display:grid;place-items:center;font-size:18px}.password-toggle:hover,.password-toggle:focus-visible{background:#1f2937;outline:1px solid #4b5563}button{border:0;cursor:pointer;touch-action:manipulation}.ptt,.channel-ptt,.private-ptt,.broadcast-all{user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent}.primary,.secondary{width:100%;border-radius:12px;padding:13px 16px;font-weight:800}.primary{background:#f59e0b;color:#111827;margin-top:10px}.secondary{background:#374151;color:#f9fafb;margin-top:22px}.status-line{display:flex;align-items:center;justify-content:center;gap:8px;color:#d1fae5}.dot{width:10px;height:10px;border-radius:50%;background:#34d399}.channel-name{text-align:center;font-size:22px;font-weight:850;margin:10px 0 20px}.ptt{display:block;width:min(72vw,280px);aspect-ratio:1;border-radius:50%;margin:0 auto;background:#d4af37;color:#111827;border:10px solid #8a6d1d;box-shadow:inset 0 0 0 4px #ffffff1f,0 18px 40px #00000059;font-weight:950;font-size:22px;user-select:none;-webkit-user-select:none}.ptt.transmitting{transform:scale(.96);background:#ef4444;border-color:#7f1d1d;color:#fff}.hint{text-align:center;color:#9ca3af;font-size:13px}.participants{margin-top:24px;padding:16px;border-radius:14px;background:#0f172a}.participants h2{margin:0 0 9px;font-size:14px;text-transform:uppercase;letter-spacing:.08em;color:#9ca3af}.participants ul{margin:0;padding-left:20px}.error{color:#fca5a5;margin-bottom:0;text-align:center;min-height:1.3em}.activity{min-height:28px;margin:-10px 0 14px;text-align:center;color:#9ca3af;font-weight:750}.activity.receiving{color:#d1fae5}.activity.transmitting{color:#fecaca}.participants ul{list-style:none;padding-left:0;display:grid;gap:8px}.participant{display:grid;grid-template-columns:10px 1fr auto;align-items:center;gap:9px}.participant-dot{width:9px;height:9px;border-radius:50%;background:#6b7280}.participant.speaking .participant-dot{background:#34d399;box-shadow:0 0 0 4px #34d3991f}.participant-state{font-size:10px;font-weight:850;letter-spacing:.07em;color:#6b7280}.participant.speaking .participant-state{color:#34d399}.channel-presence{margin-top:24px}.channel-presence h2{margin:0 0 9px;font-size:14px;text-transform:uppercase;letter-spacing:.08em;color:#9ca3af}.active-channels{display:grid;gap:8px}.channel-card{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:12px 14px;border-radius:12px;background:#0f172a;border:1px solid #374151}.channel-card span,.empty-state{color:#9ca3af;font-size:13px;margin:0}.channel-card.receiving{border-color:#34d399;box-shadow:0 0 0 2px #34d39914}.channel-card.receiving span{color:#d1fae5;font-weight:750}@media(max-width:600px){.channel-card{display:grid;grid-template-columns:1fr}.channel-card>span{grid-column:1}}.audio-devices{margin:18px 0;padding:12px 14px;border:1px solid #374151;border-radius:12px}.audio-devices summary{cursor:pointer;font-weight:750}.audio-devices label{margin-top:12px}.audio-devices .secondary{margin-top:8px}.broadcast-all{display:block;width:100%;margin:18px 0 0;padding:15px;border-radius:12px;background:#7f1d1d;color:#fff;border:2px solid #ef4444;font-weight:900;touch-action:none}.broadcast-all.transmitting{background:#dc2626;transform:scale(.99)}.broadcast-all[hidden]{display:none}.card{position:relative}.settings-toggle{position:absolute;top:18px;right:18px;width:40px;height:40px;border-radius:10px;background:#1f2937;color:#d1d5db;font-size:20px;display:grid;place-items:center}.settings-toggle:hover,.settings-toggle:focus-visible{background:#374151;outline:1px solid #4b5563}.settings-panel[hidden],.scan-control[hidden]{display:none}.settings-panel{margin-top:16px}.scan-control{display:flex;align-items:center;justify-content:center;gap:8px;margin:-8px 0 16px;color:#d1d5db;font-size:14px;font-weight:750}.scan-control input{width:auto;margin:0;accent-color:#f59e0b}.talk-mode-control{margin:0 0 16px;padding:12px 14px;border:1px solid #374151;border-radius:12px}.talk-mode-control legend{padding:0 6px;color:#d1d5db;font-weight:750}.talk-mode-options{display:grid;grid-template-columns:1fr 1fr;gap:8px}.talk-mode-options label{display:flex;align-items:center;gap:7px;margin:0;padding:9px 10px;border-radius:9px;background:#0f172a;cursor:pointer}.talk-mode-options input{width:auto;margin:0;accent-color:#f59e0b}.talk-mode-options span{color:#9ca3af;font-size:12px;font-weight:600}.private-comms{margin-top:24px;padding:16px;border-radius:14px;background:#0f172a;border:1px solid #374151}.private-comms h2{margin:0 0 9px;font-size:14px;text-transform:uppercase;letter-spacing:.08em;color:#9ca3af}.private-status{min-height:0;margin-bottom:8px;font-weight:800;color:#fde68a}.private-status:empty{display:none}.private-contacts{display:grid;gap:8px}.private-contact{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border-radius:10px;background:#111827}.private-contact-meta{display:grid;gap:2px}.private-contact-meta small{color:#9ca3af}.private-ptt{min-width:82px;padding:10px 12px;border-radius:10px;border:1px solid #a78bfa;background:#312e81;color:#fff;font-weight:850;touch-action:none}.private-ptt.transmitting{background:#7c3aed;border-color:#c4b5fd;transform:scale(.98)}.private-ptt:disabled{opacity:.45;cursor:not-allowed}.private-incoming{border-color:#fbbf24;box-shadow:0 0 0 2px #fbbf241a}.ptt.targeted-mode,.ptt.private-mode{background:#050505;color:#fff;border-color:#d4af37;box-shadow:inset 0 0 0 4px #ffffff1a,0 18px 40px #00000073}.ptt.targeted-mode.transmitting,.ptt.private-mode.transmitting{background:#111;color:#fff;border-color:#f59e0b}.participant-name.private-available,.presence-person.private-available,.channel-target{appearance:none;border:0;background:transparent;color:#f9fafb;padding:3px 6px;margin:-3px -6px;border-radius:999px;font:inherit;font-weight:800;text-align:left;cursor:pointer;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}.participant-name.private-selected,.presence-person.private-selected,.channel-target.private-selected{outline:3px solid #f59e0b;outline-offset:2px;text-decoration:none}.channel-detail,.presence-person{display:inline}.private-state-only{display:none!important}.ptt.private-mode.private-receiving{background:#111;color:#fff;border-color:#f59e0b;box-shadow:inset 0 0 0 4px #d4af372e,0 0 26px #d4af3757,0 18px 40px #00000073}.primary:disabled,.secondary:disabled{cursor:wait;opacity:.78}.ptt.receiving:not(.private-receiving){background:#166534;color:#fff;border-color:#34d399;box-shadow:inset 0 0 0 4px #ffffff1a,0 0 26px #34d39947,0 18px 40px #00000059}