#portfolio-assistant {
  --assistant-bg: #1a1a1a;
  --assistant-text: #ffffff;
  --assistant-border: #c9b584;
  --assistant-input-bg: #2a2a2a;
  --message-user-bg: #c9b584;
  --message-user-text: #000000;
  --message-assistant-bg: #333333;
  --message-assistant-text: #ffffff;
}

@media (prefers-color-scheme: light) {
  #portfolio-assistant {
    --assistant-bg: #ffffff;
    --assistant-text: #000000;
    --assistant-border: #c9b584;
    --assistant-input-bg: #f5f5f5;
    --message-user-bg: #c9b584;
    --message-user-text: #000000;
    --message-assistant-bg: #f0f0f0;
    --message-assistant-text: #000000;
  }
}

.assistant-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  z-index: 999;
}

.assistant-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--assistant-border);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
  opacity: 1;
  animation: fadeIn 0.4s ease;
  transition: opacity 0.3s ease;
}

.assistant-container.chat-open .assistant-label {
  opacity: 0;
  pointer-events: none;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 0.9;
  }
}

.assistant-button {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--assistant-border);
  color: #000000;
  border: 2px solid var(--assistant-border);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: all 0.3s ease;
}

.assistant-button:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.assistant-button:active {
  transform: scale(0.95);
}

.assistant-chat {
  position: fixed;
  bottom: 6rem;
  right: 2rem;
  width: 380px;
  height: 500px;
  background: var(--assistant-bg);
  border: 2px solid var(--assistant-border);
  border-radius: 12px;
  flex-direction: column;
  box-shadow: 0 5px 40px rgba(0, 0, 0, 0.16);
  z-index: 998;
  animation: slideUp 0.3s ease;
}

.assistant-chat:not([hidden]) {
  display: flex;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.chat-header {
  padding: 1rem;
  border-bottom: 1px solid var(--assistant-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.chat-header h3 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--assistant-text);
}

.chat-header button {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--assistant-text);
  padding: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.2s;
}

.chat-header button:hover {
  opacity: 0.7;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.message {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  word-wrap: break-word;
  line-height: 1.4;
  font-size: 0.9rem;
  max-width: 90%;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.message-content {
  word-wrap: break-word;
}

.message-time {
  font-size: 0.7rem;
  opacity: 0.75;
  margin-top: 0.25rem;
}

.user-message {
  align-self: flex-end;
  background: var(--message-user-bg);
  color: var(--message-user-text);
  border-radius: 12px 4px 12px 12px;
}

.assistant-message {
  align-self: flex-start;
  background: var(--message-assistant-bg);
  color: var(--message-assistant-text);
  border-radius: 4px 12px 12px 12px;
}

.system-message {
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.8;
  align-self: center;
  margin: 0.5rem 0;
}

.chat-input-area {
  padding: 1rem;
  border-top: 1px solid var(--assistant-border);
  display: flex;
  gap: 0.5rem;
}

.chat-input-area input {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid var(--assistant-border);
  border-radius: 6px;
  background: var(--assistant-input-bg);
  color: var(--assistant-text);
  font-size: 0.9rem;
  font-family: inherit;
}

.chat-input-area input::placeholder {
  color: var(--assistant-text);
  opacity: 0.6;
}

.chat-input-area input:focus {
  outline: none;
  border-color: var(--assistant-border);
  box-shadow: 0 0 0 2px rgba(201, 181, 132, 0.1);
}

.chat-input-area button {
  padding: 0.75rem;
  background: var(--assistant-border);
  color: #000000;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.chat-input-area button:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.chat-input-area button:active {
  transform: translateY(0);
}

@media (max-width: 480px) {
  .assistant-container {
    bottom: 1.5rem;
    right: 1rem;
  }

  .assistant-label {
    font-size: 0.7rem;
  }

  .assistant-chat {
    width: calc(100vw - 2rem);
    height: 60vh;
    bottom: auto;
    top: 50%;
    right: 1rem;
    left: 1rem;
    transform: translateY(-50%);
  }

  .message {
    max-width: 85%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .assistant-button,
  .chat-input-area button,
  .assistant-chat {
    transition: none;
  }

  @keyframes slideUp {
    from {
      opacity: 1;
    }
    to {
      opacity: 1;
    }
  }
}