.st-chat {
  --st-chat-shadow: 0 24px 64px rgba(15, 23, 42, 0.22);
  --st-chat-border: var(--md-default-fg-color--lightest);
  position: relative;
  z-index: 20;
}

.st-chat-launcher {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 21;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.72rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  background: var(--md-primary-fg-color);
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.24);
  color: var(--md-primary-bg-color);
  cursor: pointer;
  font: inherit;
  font-size: 0.75rem;
  font-weight: 750;
  transition: transform 160ms ease, box-shadow 160ms ease, opacity 160ms ease;
}

.st-chat-launcher:hover {
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.3);
  transform: translateY(-2px);
}

.st-chat-launcher:focus-visible,
.st-chat-panel button:focus-visible,
.st-chat-panel textarea:focus-visible,
.st-chat-panel a:focus-visible {
  outline: 3px solid var(--md-accent-fg-color);
  outline-offset: 2px;
}

.st-chat-launcher-icon {
  display: grid;
  width: 1.6rem;
  height: 1.6rem;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  font-size: 1rem;
}

.st-chat-panel {
  position: fixed;
  top: 5.4rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 22;
  display: flex;
  width: min(24rem, calc(100vw - 2rem));
  overflow: hidden;
  flex-direction: column;
  border: 1px solid var(--st-chat-border);
  border-radius: 20px;
  background: var(--md-default-bg-color);
  box-shadow: var(--st-chat-shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateX(calc(100% + 2rem));
  transition: opacity 180ms ease, transform 220ms ease;
}

.st-chat[data-open="true"] .st-chat-panel {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}

.st-chat[data-open="true"] .st-chat-launcher {
  opacity: 0;
  pointer-events: none;
}

.st-chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.1rem;
  border-bottom: 1px solid var(--st-chat-border);
  background:
    radial-gradient(circle at top left, rgba(33, 150, 243, 0.22), transparent 13rem),
    var(--md-default-bg-color);
}

.st-chat-header h2 {
  margin: 0.05rem 0 0;
  font-size: 1.1rem;
  line-height: 1.25;
}

.st-chat-eyebrow {
  color: var(--md-primary-fg-color);
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.st-chat-close {
  display: grid;
  width: 2rem;
  height: 2rem;
  padding: 0;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: var(--md-code-bg-color);
  color: var(--md-default-fg-color);
  cursor: pointer;
  font: inherit;
  font-size: 1.35rem;
  line-height: 1;
}

.st-chat-messages {
  display: flex;
  min-height: 0;
  padding: 1rem;
  overflow-y: auto;
  flex: 1;
  flex-direction: column;
  gap: 0.75rem;
  overscroll-behavior: contain;
}

.st-chat-message {
  max-width: 88%;
  padding: 0.7rem 0.85rem;
  border-radius: 14px;
  font-size: 0.72rem;
  line-height: 1.55;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.st-chat-message-assistant {
  align-self: flex-start;
  border: 1px solid var(--st-chat-border);
  border-bottom-left-radius: 4px;
  background: var(--md-code-bg-color);
  color: var(--md-default-fg-color);
}

.st-chat-message-user {
  align-self: flex-end;
  border-bottom-right-radius: 4px;
  background: var(--md-primary-fg-color);
  color: var(--md-primary-bg-color);
}

.st-chat-message-pending {
  color: var(--md-default-fg-color--light);
  font-style: italic;
}

.st-chat-sources {
  display: flex;
  margin-top: 0.65rem;
  flex-direction: column;
  gap: 0.35rem;
  white-space: normal;
}

.st-chat-sources a {
  padding-top: 0.35rem;
  border-top: 1px solid var(--st-chat-border);
  font-size: 0.66rem;
  font-weight: 700;
}

.st-chat-suggestions {
  display: flex;
  padding: 0 1rem 0.75rem;
  gap: 0.4rem;
  overflow-x: auto;
}

.st-chat-suggestions button {
  padding: 0.35rem 0.55rem;
  border: 1px solid var(--st-chat-border);
  border-radius: 999px;
  background: transparent;
  color: var(--md-primary-fg-color);
  cursor: pointer;
  font: inherit;
  font-size: 0.62rem;
  font-weight: 700;
  white-space: nowrap;
}

.st-chat-form {
  padding: 0.85rem 1rem 1rem;
  border-top: 1px solid var(--st-chat-border);
  background: var(--md-default-bg-color);
}

.st-chat-form textarea {
  width: 100%;
  min-height: 3.4rem;
  max-height: 8rem;
  box-sizing: border-box;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--md-default-fg-color--lighter);
  border-radius: 12px;
  background: var(--md-code-bg-color);
  color: var(--md-default-fg-color);
  font: inherit;
  font-size: 0.72rem;
  resize: vertical;
}

.st-chat-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 0.65rem;
}

.st-chat-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--md-default-fg-color--light);
  font-size: 0.62rem;
  font-weight: 650;
}

.st-chat-submit {
  padding: 0.48rem 0.85rem;
  border: 0;
  border-radius: 999px;
  background: var(--md-primary-fg-color);
  color: var(--md-primary-bg-color);
  cursor: pointer;
  font: inherit;
  font-size: 0.68rem;
  font-weight: 800;
}

.st-chat-submit:disabled {
  cursor: progress;
  opacity: 0.65;
}

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

@media (max-width: 76.1875em) {
  .st-chat-panel {
    top: 3.8rem;
  }
}

@media (max-width: 40em) {
  .st-chat-launcher {
    right: 0.8rem;
    bottom: 0.8rem;
  }

  .st-chat-panel {
    inset: 0;
    width: auto;
    border: 0;
    border-radius: 0;
  }

  .st-chat-message {
    max-width: 92%;
    font-size: 0.78rem;
  }
}

@media print {
  .st-chat {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .st-chat-launcher,
  .st-chat-panel {
    transition: none;
  }
}