.krampus-assistant {
  --asst-width: 372px;
  --asst-height: 500px;
  --asst-fab-size: 56px;
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 9000;
  font-family: var(--font-sans);
  pointer-events: none;
}

.krampus-assistant * {
  box-sizing: border-box;
}

.krampus-assistant > * {
  pointer-events: auto;
}

.assistant-fab {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 0 20px 0 12px;
  height: var(--asst-fab-size);
  border: 1px solid var(--border-2);
  border-radius: var(--r-pill);
  background: var(--surface);
  color: var(--ink);
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  font-family: inherit;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: transform 0.2s cubic-bezier(0.34, 1.4, 0.64, 1),
    box-shadow 0.2s ease, border-color 0.16s ease;
}

.assistant-fab:hover {
  border-color: var(--accent-border);
  transform: translateY(-2px);
  box-shadow: 0 26px 50px -18px rgba(8, 146, 173, 0.5);
}

.assistant-fab:active {
  transform: translateY(0);
}

.assistant-fab__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--grad-brand);
  color: #fff;
  flex-shrink: 0;
}

.assistant-fab__label {
  white-space: nowrap;
}

.krampus-assistant.is-open .assistant-fab {
  display: none;
}

.assistant-panel {
  display: none;
  flex-direction: column;
  width: var(--asst-width);
  max-width: calc(100vw - 32px);
  height: var(--asst-height);
  max-height: calc(100dvh - 44px);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  background: var(--surface);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform-origin: bottom right;
}

.krampus-assistant.is-open .assistant-panel {
  display: flex;
  animation: assistantPanelIn 0.32s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes assistantPanelIn {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.assistant-header {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 15px 15px 13px;
  border-bottom: 1px solid var(--border);
  background: var(--grad-navy);
  flex-shrink: 0;
}

.assistant-header__avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(40, 212, 236, 0.16);
  border: 1px solid rgba(40, 212, 236, 0.32);
  flex-shrink: 0;
  overflow: hidden;
}

.assistant-header__avatar img {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

.assistant-header__meta {
  flex: 1;
  min-width: 0;
}

.assistant-header__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  letter-spacing: -0.02em;
}

.assistant-header__status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 3px 0 0;
  font-size: 12px;
  color: #9fb6c9;
}

.assistant-header__status::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #2ee6a6;
  box-shadow: 0 0 0 3px rgba(46, 230, 166, 0.2);
}

.assistant-header__status.is-typing {
  color: var(--accent-bright);
}

.assistant-header__status.is-typing::before {
  background: var(--accent-bright);
  box-shadow: 0 0 0 3px rgba(40, 212, 236, 0.22);
}

.assistant-header__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: none;
  border-radius: var(--r-sm);
  background: rgba(255, 255, 255, 0.08);
  color: #cfe0ee;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.assistant-header__close:hover {
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
}

.assistant-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scroll-behavior: smooth;
  background: var(--surface-2);
}

.assistant-msg {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-width: 92%;
  animation: assistantMsgIn 0.28s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.assistant-msg--user {
  align-self: flex-end;
  align-items: flex-end;
}

.assistant-msg--bot {
  align-self: flex-start;
  align-items: flex-start;
}

@keyframes assistantMsgIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.assistant-msg__bubble {
  padding: 11px 14px;
  border-radius: 16px;
  font-size: 14.5px;
  line-height: 1.55;
  word-break: break-word;
}

.assistant-msg--user .assistant-msg__bubble {
  background: var(--grad-brand);
  color: #fff;
  border-bottom-right-radius: 5px;
}

.assistant-msg--bot .assistant-msg__bubble {
  background: var(--surface);
  color: var(--ink-2);
  border: 1px solid var(--border);
  border-bottom-left-radius: 5px;
}

.assistant-msg__content {
  display: inline;
}

.assistant-word {
  display: inline;
  opacity: 0;
  animation: assistantWordIn 0.42s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes assistantWordIn {
  0% {
    opacity: 0;
    transform: translateY(7px);
    filter: blur(3px);
  }
  55% {
    opacity: 1;
    filter: blur(0);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

.assistant-msg--error .assistant-msg__bubble {
  background: var(--danger-soft);
  border-color: var(--danger-border);
  color: var(--danger);
}

.assistant-typing {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 0;
}

.assistant-typing__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--subtle);
  animation: assistantDot 1.2s ease-in-out infinite;
}

.assistant-typing__dot:nth-child(2) {
  animation-delay: 0.15s;
}

.assistant-typing__dot:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes assistantDot {
  0%, 60%, 100% {
    opacity: 0.35;
    transform: translateY(0);
  }
  30% {
    opacity: 1;
    transform: translateY(-3px);
  }
}

.assistant-composer {
  display: flex;
  align-items: flex-end;
  gap: 9px;
  padding: 13px 14px;
  border-top: 1px solid var(--border);
  background: var(--surface);
  flex-shrink: 0;
}

.assistant-composer__input {
  flex: 1;
  min-height: 42px;
  max-height: 120px;
  padding: 10px 13px;
  font-family: inherit;
  font-size: 14.5px;
  line-height: 1.45;
  color: var(--ink);
  background: var(--surface-2);
  border: 1px solid var(--border-2);
  border-radius: var(--r-md);
  resize: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.assistant-composer__input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(8, 146, 173, 0.14);
}

.assistant-composer__input::placeholder {
  color: var(--subtle);
}

.assistant-composer__send {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  padding: 0;
  flex-shrink: 0;
  border: none;
  border-radius: var(--r-md);
  background: var(--grad-brand);
  color: #fff;
  cursor: pointer;
  box-shadow: var(--shadow-cyan);
  transition: filter 0.15s ease, transform 0.05s ease;
}

.assistant-composer__send:hover:not(:disabled) {
  filter: brightness(1.05);
}

.assistant-composer__send:active:not(:disabled) {
  transform: translateY(1px);
}

.assistant-composer__send:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

@media (max-width: 480px) {
  .krampus-assistant {
    right: 14px;
    bottom: 14px;
    left: 14px;
  }

  .krampus-assistant.is-open .assistant-panel {
    width: 100%;
    max-width: none;
    height: min(var(--asst-height), calc(100dvh - 28px));
  }

  .assistant-fab {
    width: var(--asst-fab-size);
    padding: 0;
    justify-content: center;
    margin-left: auto;
  }

  .assistant-fab__label {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .assistant-panel,
  .assistant-msg,
  .assistant-word,
  .assistant-typing__dot {
    animation: none !important;
  }

  .assistant-word {
    opacity: 1;
    transform: none;
    filter: none;
  }
}