:root{font-family:system-ui,-apple-system,Segoe UI,sans-serif;color-scheme:dark;background:#07111d;color:#eef5ff}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(ellipse at 50% 30%,#193747 0%,#091622 66%)}button,select,input{font:inherit}button{cursor:pointer}button:disabled{opacity:.48;cursor:not-allowed}.app{max-width:550px;margin:auto;min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;padding:calc(env(safe-area-inset-top) + 12px) 16px calc(env(safe-area-inset-bottom) + 18px)}header{display:flex;justify-content:space-between;align-items:center;gap:12px;border-bottom:1px solid #334657;padding:0 0 12px}.brand{font-size:1.12rem;letter-spacing:2px;font-weight:900;direction:ltr;text-align:right}.version{font-size:.65rem;color:#a3bcc7;letter-spacing:0}.minor{font-size:.78rem;color:#adc3d2}.tools{display:flex;align-items:center;gap:10px}.signal{font-size:.7rem;font-weight:800;letter-spacing:1px;color:#f9ae90}.signal.on{color:#4dd7b9}.icon-btn{border:1px solid #365263;color:#eef5ff;background:#122938;border-radius:12px;min-width:44px;min-height:44px;font-size:1.7rem}.settings{border:1px solid #466171;background:#0d2332;border-radius:16px;margin-top:8px;padding:14px;position:relative;z-index:3}.settings label{display:block}.settings input{width:100%;accent-color:#38bdf8}.settings button{padding:10px;margin:8px 6px 0 0;background:#1c445a;color:#fff;border:0;border-radius:9px}.hint{color:#a9c1cd;font-size:.82rem}main{flex:1;display:flex;flex-direction:column;justify-content:flex-start}.status-card{margin-top:18px;border:1px solid #2b485b;background:#122a3b;border-radius:17px;padding:12px 14px;display:grid;grid-template-columns:1fr auto;align-items:center;gap:12px}.status-card .minor{grid-column:1/-1;text-align:center}.channel label{display:block;color:#a8c0cc;font-size:.8rem;margin-bottom:4px}.channel select{width:100%;padding:9px;border:1px solid #477084;border-radius:9px;background:#102230;color:#fff;min-height:44px}.state{font-size:.95rem;font-weight:800;color:#4dd7b9}.ptt-panel{flex:1;display:flex;align-items:center;flex-direction:column;justify-content:center;min-height:220px;gap:9px}.ptt{width:min(49vw,180px);height:min(49vw,180px);min-width:145px;min-height:145px;border-radius:50%;border:8px solid #2e5269;background:linear-gradient(140deg,#37c6d7,#147e9f);color:#06202e;font-weight:900;font-size:1.35rem;line-height:1.45;touch-action:none;user-select:none;-webkit-user-select:none;transition:transform .1s,background .12s}.ptt:active,.ptt.tx{background:linear-gradient(150deg,#ff9956,#e34931);border-color:#945039;transform:scale(.96);color:#fff}.ptt.rx{background:linear-gradient(140deg,#b0ea60,#44ac69)}#floorStatus{color:#bdd1df;text-align:center;font-size:.85rem;min-height:36px}.members{text-align:center;margin:8px 0 20px}.text-btn{background:transparent;border:0;color:#9bd9e9;padding:12px}.members #members{padding:8px;font-size:.84rem;color:#d7e8f3}.member{display:inline-block;border:1px solid #446074;border-radius:8px;padding:5px 10px;margin:4px}footer{border-top:1px solid #2e4d61;padding-top:14px;text-align:center;display:grid;gap:8px}.power{display:block;width:100%;border:1px solid #6a9fb4;background:#183a4c;color:#d5f7ff;padding:14px;min-height:48px;border-radius:12px;font-weight:800}.power.on{background:#492b31;color:#ffbaba;border-color:#995365}.login{display:grid;place-content:center;padding:20px}.login-card{min-width:min(360px,88vw);background:#122838;border:1px solid #42627a;padding:25px;border-radius:20px}.login-card h1{letter-spacing:4px}.login-card label{display:block;margin:15px 0}.login-card input{display:block;width:100%;min-height:45px;border:1px solid #668494;border-radius:9px;margin-top:6px;background:#09202c;color:#fff;padding:10px;font-size:16px}.login-card button{width:100%;padding:13px;background:#22abc2;color:#071c28;border:0;border-radius:11px;font-weight:800}.error{color:#ff927e}@media(max-height:620px){.ptt-panel{min-height:170px}.ptt{min-height:125px;min-width:125px;height:135px;width:135px}.status-card{margin-top:8px}}