:root{
  --bg:#0A1530; --panel:#0f1d40; --panel2:#13234d; --line:#243a6b;
  --primary:#3B82F6; --accent:#FACC15; --live:#EF4444;
  --text:#e8eefc; --muted:#9fb2d8; --ok:#22c55e;
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);color:var(--text);}
h1,h2,h3{margin:0 0 .4rem}
.muted{color:var(--muted)}
.error{color:var(--live)}
button{cursor:pointer;font:inherit}
input,textarea,select{font:inherit;width:100%;padding:.55rem .7rem;border-radius:8px;
  border:1px solid var(--line);background:#0b1838;color:var(--text);margin-top:.25rem}
label{display:block;margin:.6rem 0;font-size:.9rem;color:var(--muted)}
a{color:var(--primary)}

/* LOGIN */
.login{min-height:100vh;display:grid;place-items:center;padding:1rem}
.login-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;
  padding:2rem;width:min(380px,100%)}
.login-card h1{color:var(--primary)}
.login-card button{width:100%;margin-top:1rem;background:var(--primary);color:#fff;border:0;
  padding:.7rem;border-radius:10px;font-weight:600}

/* TOPBAR */
.topbar{display:flex;align-items:center;gap:1rem;padding:.7rem 1rem;
  background:var(--panel);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10;flex-wrap:wrap}
.tabs{display:flex;gap:.3rem;flex:1;flex-wrap:wrap}
.tabs button{background:transparent;color:var(--muted);border:0;padding:.5rem .8rem;border-radius:8px}
.tabs button.active{background:var(--primary);color:#fff}
.ghost{background:transparent;color:var(--muted);border:1px solid var(--line);padding:.45rem .8rem;border-radius:8px}

main{max-width:1000px;margin:0 auto;padding:1.2rem}
.tab{animation:fade .15s ease}
@keyframes fade{from{opacity:0}to{opacity:1}}

.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;
  padding:1.1rem;margin-bottom:1rem}
.card h3{color:var(--accent)}
.row{display:flex;gap:1rem;flex-wrap:wrap}
.row>*{flex:1;min-width:180px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media(max-width:700px){.grid2{grid-template-columns:1fr}}

.btn{background:var(--primary);color:#fff;border:0;padding:.6rem 1rem;border-radius:10px;font-weight:600}
.btn.accent{background:var(--accent);color:#1a1a1a}
.btn.danger{background:transparent;border:1px solid var(--live);color:var(--live)}
.btn.small{padding:.35rem .7rem;font-size:.85rem}
.actions{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:.6rem}

.thumb{width:54px;height:54px;border-radius:10px;object-fit:cover;background:#0b1838;border:1px solid var(--line)}
.pill{display:inline-block;padding:.15rem .55rem;border-radius:999px;font-size:.75rem;
  background:var(--panel2);color:var(--muted);border:1px solid var(--line)}
.pill.on{background:rgba(34,197,94,.15);color:var(--ok);border-color:var(--ok)}
.pill.off{opacity:.6}

/* CHAT */
.chat-wrap{display:grid;grid-template-columns:300px 1fr;gap:1rem;height:70vh}
@media(max-width:760px){.chat-wrap{grid-template-columns:1fr;height:auto}}
.people{background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow-y:auto}
.person{padding:.7rem .9rem;border-bottom:1px solid var(--line);cursor:pointer}
.person:hover{background:var(--panel2)}
.person.active{background:var(--primary);color:#fff}
.person .ph{font-size:.8rem;color:var(--muted)}
.person.active .ph{color:#dde}
.thread{background:var(--panel);border:1px solid var(--line);border-radius:14px;
  display:flex;flex-direction:column;min-height:50vh}
.msgs{flex:1;overflow-y:auto;padding:1rem;display:flex;flex-direction:column;gap:.5rem}
.bubble{max-width:75%;padding:.55rem .8rem;border-radius:14px;line-height:1.3}
.bubble.listener{align-self:flex-start;background:var(--panel2)}
.bubble.station{align-self:flex-end;background:var(--primary);color:#fff}
.bubble .meta{display:block;font-size:.68rem;opacity:.7;margin-top:.2rem}
.composer{display:flex;gap:.5rem;padding:.7rem;border-top:1px solid var(--line)}
.composer input{margin:0}
.empty{display:grid;place-items:center;height:100%;color:var(--muted);padding:2rem;text-align:center}

.toast{position:fixed;bottom:1.2rem;left:50%;transform:translateX(-50%);
  background:var(--ok);color:#04210f;padding:.7rem 1.2rem;border-radius:10px;font-weight:600;z-index:50}
.toast.err{background:var(--live);color:#fff}
.list-item{display:flex;gap:1rem;align-items:center;padding:.7rem 0;border-bottom:1px solid var(--line)}
.list-item:last-child{border-bottom:0}
.grow{flex:1}
small.hint{color:var(--muted);font-size:.78rem}