/* Echo-core Portal bootstrap shell. No model provider is attached in this phase. */
.echo-core-toggle{
  appearance:none;border:1px solid rgba(201,162,39,.42);background:rgba(7,7,8,.88);
  color:#e8c547;font:600 .54rem ui-monospace,Menlo,Consolas,system-ui,sans-serif;
  letter-spacing:.16em;text-transform:uppercase;padding:.42rem .7rem;cursor:pointer
}
.echo-core-toggle:hover,.echo-core-toggle:focus-visible{border-color:#e8c547;outline:none}
.echo-core-panel{
  position:fixed;left:50%;top:50%;z-index:30;width:min(92vw,44rem);max-height:min(68dvh,38rem);
  transform:translate(-50%,-50%);display:flex;flex-direction:column;
  background:rgba(5,5,7,.96);border:1px solid rgba(201,162,39,.55);
  box-shadow:0 1.4rem 4rem rgba(0,0,0,.62);color:#e8e6e0
}
.echo-core-panel[hidden]{display:none}
.echo-core-head{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.75rem .9rem;border-bottom:1px solid rgba(201,162,39,.25)}
.echo-core-title{display:flex;flex-direction:column;gap:.12rem}
.echo-core-title strong{font-size:.74rem;letter-spacing:.18em;color:#e8c547}
.echo-core-title span{font-size:.5rem;letter-spacing:.11em;color:#8f8a80}
.echo-core-close{border:0;background:transparent;color:#b8b4aa;font-size:1.1rem;cursor:pointer;padding:.2rem .35rem}
.echo-core-log{overflow:auto;min-height:12rem;padding:.85rem .9rem;display:flex;flex-direction:column;gap:.65rem}
.echo-core-line{font-size:.72rem;line-height:1.48;white-space:pre-wrap;word-break:break-word}
.echo-core-line b{display:block;margin-bottom:.15rem;font-size:.5rem;letter-spacing:.14em;color:#9b7ec8}
.echo-core-line--user b{color:#76d99b}
.echo-core-compose{display:grid;grid-template-columns:1fr auto;gap:.55rem;padding:.75rem .9rem;border-top:1px solid rgba(201,162,39,.25)}
.echo-core-input{min-width:0;border:1px solid rgba(201,162,39,.28);background:#08080a;color:#ece9e0;padding:.65rem .7rem;font:400 .78rem ui-monospace,Menlo,Consolas,system-ui,sans-serif}
.echo-core-input:focus{border-color:#e8c547;outline:none}
.echo-core-send{border:1px solid rgba(201,162,39,.55);background:#0b0b0d;color:#e8c547;padding:.6rem .9rem;font:600 .58rem ui-monospace,Menlo,Consolas,system-ui,sans-serif;letter-spacing:.12em;cursor:pointer}
.echo-core-meta{display:flex;justify-content:space-between;gap:1rem;padding:.45rem .9rem .6rem;color:#777268;font-size:.48rem;letter-spacing:.09em;text-transform:uppercase}
@media(max-width:760px){
  .echo-core-panel{top:auto;bottom:1rem;transform:translateX(-50%);max-height:72dvh}
  .echo-core-log{min-height:9rem}
  .echo-core-compose{grid-template-columns:1fr}
  .echo-core-send{min-height:44px}
  .echo-core-input{font-size:16px}
}
@media(prefers-reduced-motion:no-preference){
  .echo-core-panel:not([hidden]){animation:echoCoreIn .18s ease-out}
  @keyframes echoCoreIn{from{opacity:0;transform:translate(-50%,-48%)}to{opacity:1;transform:translate(-50%,-50%)}}
}