/* ALFa USPBF public demo dock — MUST match packages/chat-widget/src/theme.ts
 * Panel: min(calc(100vw - 2rem), 28rem) x min(85dvh, 36rem) (same as @alfa-ai/chat-widget) */

:root {
  --alfa-panel-bg: #0a1838;
  --alfa-header-bg: #07122c;
  --alfa-panel-border: #142452;
  --uspbf-text: #e2e8f0;
  --uspbf-muted: #94a3b8;
  --uspbf-border: #334155;
  --uspbf-accent-sky-strong: #0ea5e9;
}

.alfa-demo {
  --alfa-panel-bg: #0a1838;
  --alfa-header-bg: #07122c;
  --alfa-panel-border: #142452;
  position: fixed;
  bottom: 0;
  right: 0;
  z-index: 85;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.5rem;
  padding: 0 1rem 1rem;
  padding-bottom: calc(1rem + env(safe-area-inset-bottom, 0));
  padding-right: calc(1rem + env(safe-area-inset-right, 0));
  pointer-events: none;
}

.alfa-demo > * {
  pointer-events: auto;
}

.alfa-demo__panel {
  width: min(calc(100vw - 2rem), 28rem);
  height: min(85dvh, 36rem);
  max-height: min(85dvh, 36rem);
  display: flex;
  flex-direction: column;
  border-radius: 0.75rem;
  border: 1px solid var(--alfa-panel-border);
  background: var(--alfa-panel-bg);
  box-shadow: 0 20px 50px rgba(8, 47, 73, 0.55);
  overflow: hidden;
}

.alfa-demo__head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--alfa-panel-border);
  background: var(--alfa-header-bg);
  flex-shrink: 0;
}

.alfa-demo__avatar {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 9999px;
  object-fit: cover;
  flex-shrink: 0;
}

.alfa-demo__head-text {
  min-width: 0;
  flex: 1;
}

.alfa-demo__title {
  font-size: 0.875rem;
  font-weight: 600;
  color: #38bdf8;
  letter-spacing: 0.04em;
}

.alfa-demo__subtitle {
  font-size: 0.6875rem;
  color: var(--uspbf-muted);
  line-height: 1.35;
  margin-top: 0.15rem;
}

.alfa-demo__close {
  border: none;
  background: transparent;
  color: var(--uspbf-muted);
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  padding: 0.35rem;
  border-radius: 0.35rem;
  flex-shrink: 0;
}

.alfa-demo__close:hover {
  color: var(--uspbf-text);
  background: rgba(51, 65, 85, 0.5);
}

.alfa-demo__messages {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.8125rem;
  line-height: 1.45;
  -webkit-user-select: text;
  user-select: text;
}

.alfa-demo__bubble {
  max-width: 92%;
  padding: 0.5rem 0.65rem;
  border-radius: 0.65rem;
  word-break: break-word;
}

.alfa-demo__bubble--user {
  align-self: flex-end;
  background: rgba(14, 165, 233, 0.22);
  border: 1px solid rgba(56, 189, 248, 0.35);
  color: var(--uspbf-text);
}

.alfa-demo__bubble--assistant {
  align-self: flex-start;
  background: var(--alfa-header-bg);
  border: 1px solid var(--alfa-panel-border);
  color: var(--uspbf-text);
}

.alfa-demo__bubble--loading {
  color: var(--uspbf-muted);
  font-style: italic;
}

.alfa-demo__form {
  display: flex;
  gap: 0.5rem;
  padding: 0.65rem 0.75rem;
  border-top: 1px solid var(--alfa-panel-border);
  background: var(--alfa-panel-bg);
  flex-shrink: 0;
}

.alfa-demo__input {
  flex: 1;
  min-width: 0;
  border-radius: 0.5rem;
  border: 1px solid var(--uspbf-border);
  background: var(--alfa-header-bg);
  color: var(--uspbf-text);
  padding: 0.45rem 0.6rem;
  font-size: 0.8125rem;
}

.alfa-demo__input:focus {
  outline: 2px solid rgba(56, 189, 248, 0.45);
  outline-offset: 1px;
}

.alfa-demo__send {
  border-radius: 0.5rem;
  border: none;
  background: var(--uspbf-accent-sky-strong);
  color: #0f172a;
  font-weight: 600;
  font-size: 0.8125rem;
  padding: 0.45rem 0.85rem;
  cursor: pointer;
  flex-shrink: 0;
}

.alfa-demo__send:hover:not(:disabled) {
  background: #38bdf8;
}

.alfa-demo__send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.alfa-demo__fab {
  display: none;
}

.alfa-demo__panel[hidden] {
  display: flex !important;
}

.alfa-demo__slider {
  position: relative;
  transition: transform 0.3s ease-in-out;
  transform: translateX(0);
}

.alfa-demo--collapsed .alfa-demo__slider {
  transform: translateX(calc(100% + 1.5rem));
}

.alfa-demo__collapse {
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  top: 0.25rem;
  left: 0.25rem;
  z-index: 1;
  width: 1.75rem;
  height: 1.75rem;
  padding: 0;
  border-radius: 9999px;
  border: 1px solid var(--alfa-panel-border);
  background: var(--alfa-header-bg);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
}

.alfa-demo__handle {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.125rem;
  position: fixed;
  right: 0;
  bottom: calc(2rem + env(safe-area-inset-bottom, 0));
  z-index: 86;
  padding: 0.5rem 0.375rem;
  border: 1px solid var(--alfa-panel-border);
  border-right: 0;
  border-radius: 0.5rem 0 0 0.5rem;
  background: var(--alfa-header-bg);
  color: #fff;
  cursor: pointer;
  pointer-events: none;
  opacity: 0;
  transform: translateX(100%);
  transition: transform 0.3s ease-in-out, opacity 0.3s ease-in-out;
  font-family: inherit;
}

.alfa-demo--collapsed .alfa-demo__handle {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.alfa-demo__handle-arrow {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
}

.alfa-demo__handle-label {
  font-size: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
  color: #38bdf8;
}

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