/* Chat — studio Grok */

#panel-chat.panel.active {
  display: block;
  min-height: calc(100vh - 100px);
}

body.ch-tab-active #panel-chat {
  background: #0c1016;
}

.ch-shell {
  max-width: 44rem;
  margin: 0 auto;
  padding: 0.65rem 1rem 1.4rem;
  display: flex;
  flex-direction: column;
  height: calc(100vh - 118px);
  min-height: 28rem;
  box-sizing: border-box;
  color: #e6ebf2;
}

.ch-top {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 0.55rem;
}

.ch-top h2 {
  margin: 0 0 0.2rem;
  font-size: 1.28rem;
  color: #9ad4ff;
}

.ch-hint {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.4;
  color: rgba(180, 198, 220, 0.88);
  max-width: 32rem;
}

#ch-new {
  appearance: none;
  font: inherit;
  font-size: 0.76rem;
  padding: 0.32rem 0.6rem;
  border-radius: 8px;
  border: 1px solid rgba(120, 170, 220, 0.35);
  background: rgba(20, 28, 40, 0.95);
  color: #d8e6f4;
  cursor: pointer;
}

.ch-log {
  flex: 1;
  overflow-y: auto;
  border-radius: 12px;
  border: 1px solid rgba(100, 150, 200, 0.28);
  background: rgba(8, 12, 18, 0.92);
  padding: 0.75rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.ch-msg {
  max-width: 92%;
  padding: 0.5rem 0.65rem;
  border-radius: 10px;
  font-size: 0.88rem;
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-word;
}

.ch-msg.user {
  align-self: flex-end;
  background: linear-gradient(180deg, #2a4a72, #1a304c);
  border: 1px solid rgba(140, 190, 255, 0.35);
}

.ch-msg.assistant {
  align-self: flex-start;
  background: rgba(22, 26, 34, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.ch-msg.pending {
  opacity: 0.7;
  font-style: italic;
}

.ch-empty {
  margin: auto;
  text-align: center;
  color: rgba(160, 180, 200, 0.7);
  font-size: 0.84rem;
  line-height: 1.5;
  max-width: 22rem;
}

.ch-form {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.55rem;
  align-items: flex-end;
}

#ch-input {
  flex: 1;
  font: inherit;
  font-size: 0.9rem;
  padding: 0.5rem 0.65rem;
  border-radius: 10px;
  border: 1px solid rgba(120, 170, 220, 0.35);
  background: #121820;
  color: #eef4fa;
  resize: none;
  min-height: 2.6rem;
  max-height: 8rem;
}

.ch-send {
  appearance: none;
  font: inherit;
  font-size: 0.86rem;
  font-weight: 700;
  padding: 0.5rem 0.85rem;
  border-radius: 10px;
  border: 1px solid rgba(150, 210, 255, 0.45);
  background: linear-gradient(180deg, #3a6ea8, #1e3e68);
  color: #f4f8ff;
  cursor: pointer;
}

.ch-send:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.ch-status {
  min-height: 1.1rem;
  margin: 0.35rem 0 0;
  font-size: 0.76rem;
  color: rgba(170, 190, 210, 0.8);
}

.ch-status.err {
  color: #ffb0a0;
}

@media (max-width: 720px) {
  .ch-shell {
    padding: 0.45rem 0.6rem 1rem;
    height: calc(100vh - 96px);
  }
}