.ama-chat {
  width: 100%;
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.ama-chat__form {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 48px;
  padding: 4px 5px 4px 18px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--entry);
  transition: border-color .15s ease, box-shadow .15s ease, border-radius .15s ease;
}

.ama-chat__form:focus-within {
  border-color: var(--purple);
  box-shadow: 0 0 0 2px var(--graypurple);
}

.ama-chat:has(.ama-chat__overlay.is-visible) .ama-chat__form {
  border-radius: 0 0 16px 16px;
}

.ama-chat__form input {
  min-width: 0;
  flex: 1;
  color: var(--primary);
  font-size: .95rem;
}

.ama-chat__form input::placeholder {
  color: var(--secondary);
  opacity: 1;
}

.ama-chat__send {
  display: grid;
  place-items: center;
  flex: 0 0 38px;
  width: 38px;
  height: 38px;
  margin-left: 8px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--theme);
  font-size: 1.2rem;
  line-height: 1;
  transition: transform .15s ease, opacity .15s ease;
}

.ama-chat__send:hover {
  transform: scale(1.05);
}

.ama-chat__send:disabled {
  cursor: wait;
  opacity: .6;
}

.ama-chat__clear {
  padding: 0 8px;
  color: var(--secondary);
  font-size: .84rem;
}

.ama-chat__clear:hover {
  color: var(--primary);
  text-decoration: underline;
}

.ama-chat__overlay {
  display: none;
  position: relative;
  z-index: 2;
  width: 100%;
  max-height: min(50dvh, 420px);
  overflow-y: auto;
  padding: 12px;
  border: 1px solid var(--border);
  border-bottom: 0;
  border-radius: 16px 16px 0 0;
  background: var(--entry);
}

.ama-chat__overlay.is-visible {
  display: block;
}

.ama-chat__messages {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ama-chat__message {
  max-width: 88%;
  padding: 10px 12px;
  border-radius: 12px;
  white-space: pre-wrap;
  font-size: .94rem;
  line-height: 1.5;
}

.ama-chat__message--assistant {
  align-self: flex-start;
  background: var(--code-bg);
}

.ama-chat__message--user {
  align-self: flex-end;
  background: var(--graypurple);
}

.ama-chat__sources {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.ama-chat__sources a {
  font-size: .82rem;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 520px) {
  .ama-chat__message {
    max-width: 94%;
  }
}