/* 10-layout.css — app shell: transmitter strip slot, left rail, main column,
   responsive collapse. Visual detail for the strip itself lives in 20-console.css. */

.shell{
  display:grid;
  grid-template-columns:212px 1fr;
  gap:0;
  min-height:calc(100vh - var(--chrome-bar));
}

/* ---- left rail ---- */
.rail{
  border-right:1px solid var(--line);
  padding:14px 12px 24px;
  display:flex;
  flex-direction:column;
  gap:18px;
}
.rail-group{ display:flex; flex-direction:column; gap:4px; }
.rail .sub-label{ padding:0 8px 4px; }

.station-item, .nav-item{
  display:flex; align-items:center; gap:8px;
  width:100%;
  text-align:left;
  background:transparent;
  border:1px solid transparent;
  border-radius:var(--radius);
  color:var(--muted);
  font-family:var(--font-body);
  font-size:13.5px; font-weight:500;
  padding:7px 9px;
  cursor:pointer;
}
.station-item:hover, .nav-item:hover{ background:#1E2026; color:var(--text); }
.station-item.active, .nav-item.active{
  background:#26241C;
  border-color:#4A3D1B;
  color:var(--accent);
}
.station-item .st-name{
  overflow:hidden; text-overflow:ellipsis; white-space:nowrap; flex:1;
}
.live-dot{
  width:7px; height:7px; border-radius:50%;
  background:#3A3D45; flex:none;
}
.live-dot.on{ background:var(--live); }

.nav-item .n-ico{ width:16px; text-align:center; flex:none; opacity:.85; }

.new-station{
  margin-top:2px;
  color:var(--muted);
  font-size:13px;
}

/* ---- main ---- */
.main{
  padding:18px 22px 64px;
  min-width:0;
  max-width:1180px;
}
.sec{ display:none; }
.sec.active{ display:block; }
.sec > .sec-head{
  display:flex; align-items:baseline; gap:12px; flex-wrap:wrap;
  margin:2px 0 16px;
}
.sec > .sec-head .sec-sub{ color:var(--muted); font-size:13px; }

/* generic grids */
.card-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(290px, 1fr));
  gap:14px;
}
.two-col{
  display:grid;
  grid-template-columns:minmax(220px, 300px) minmax(0,1fr);
  gap:16px;
  align-items:start;
}

/* ---- auth gate ---- */
.auth-gate{
  position:fixed; inset:0;
  padding-top:var(--chrome-bar);
  background:var(--bg);
  display:flex; align-items:center; justify-content:center;
  z-index:40;
}
.auth-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:34px 38px;
  max-width:420px;
  margin:16px;
  text-align:center;
}
.auth-card .wordmark{ font-size:30px; }
.auth-card p{ color:var(--muted); margin-top:12px; }

/* ---- toasts ---- */
.toast-wrap{
  position:fixed; right:14px; bottom:14px; z-index:60;
  display:flex; flex-direction:column; gap:8px;
  max-width:min(380px, calc(100vw - 28px));
}
.toast{
  background:var(--panel);
  border:1px solid var(--line);
  border-left:3px solid var(--accent);
  border-radius:var(--radius);
  padding:10px 14px;
  font-size:13.5px;
  box-shadow:0 8px 24px rgba(0,0,0,.4);
}
.toast.err{ border-left-color:var(--err); }
.toast.ok{ border-left-color:var(--ok); }

/* ---- responsive: rail becomes horizontal tabs under 900px ---- */
@media (max-width:900px){
  .shell{ grid-template-columns:1fr; }
  .rail{
    border-right:none;
    border-bottom:1px solid var(--line);
    flex-direction:row;
    align-items:center;
    gap:6px;
    overflow-x:auto;
    padding:8px 10px;
    -webkit-overflow-scrolling:touch;
    scrollbar-width:thin;
  }
  .rail-group{ flex-direction:row; align-items:center; gap:4px; flex:none; }
  .rail .sub-label{ display:none; }
  .rail-sep{ width:1px; align-self:stretch; background:var(--line); flex:none; margin:2px 4px; }
  .station-item, .nav-item{ white-space:nowrap; width:auto; padding:6px 10px; }
  .main{ padding:14px 12px 56px; }
  .two-col{ grid-template-columns:1fr; }
}
@media (max-width:480px){
  .main{ padding:12px 9px 48px; }
  .card-grid{ grid-template-columns:1fr; }
}