/**
 * AI Chatbot Widget Styles
 * Matches portfolio design system
 */

:root {
  --chatbot-primary: #1e3a8a;
  --chatbot-secondary: #3b82f6;
  --chatbot-bg: #ffffff;
  --chatbot-text: #1f2937;
  --chatbot-border: #e5e7eb;
  --chatbot-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --chatbot-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* ========================================
   Floating Chat Button
   ======================================== */
.chatbot-trigger {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--chatbot-primary) 0%, var(--chatbot-secondary) 100%);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--chatbot-shadow-lg);
  transition: all 0.3s ease;
  z-index: 9998;
  overflow: hidden;
}

.chatbot-trigger:hover {
  transform: scale(1.1);
  box-shadow: 0 25px 30px -5px rgba(0, 0, 0, 0.15), 0 15px 15px -5px rgba(0, 0, 0, 0.06);
}

.chatbot-trigger:active {
  transform: scale(0.95);
}

.chatbot-trigger svg {
  width: 28px;
  height: 28px;
  transition: transform 0.3s ease;
}

.chatbot-trigger.active svg {
  transform: rotate(180deg);
}

/* Pulse animation for attention */
.chatbot-trigger::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--chatbot-secondary);
  animation: pulse 2s infinite;
  z-index: -1;
}

@keyframes pulse {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  100% {
    transform: scale(1.5);
    opacity: 0;
  }
}

/* ========================================
   Chat Window Container
   ======================================== */
.chatbot-window {
  position: fixed;
  bottom: 100px;
  right: 24px;
  width: 380px;
  max-width: calc(100vw - 48px);
  height: 550px;
  max-height: calc(100vh - 150px);
  background: var(--chatbot-bg);
  border-radius: 16px;
  box-shadow: var(--chatbot-shadow-lg);
  display: flex;
  flex-direction: column;
  opacity: 0;
  transform: translateY(20px) scale(0.95);
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 9999;
  overflow: hidden;
}

.chatbot-window.active {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

/* ========================================
   Chat Header
   ======================================== */
.chatbot-header {
  background: linear-gradient(135deg, var(--chatbot-primary) 0%, var(--chatbot-secondary) 100%);
  color: white;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-radius: 16px 16px 0 0;
}

.chatbot-header-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.chatbot-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--chatbot-primary);
  font-size: 18px;
}

.chatbot-header-text h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
}

.chatbot-header-text p {
  margin: 0;
  font-size: 12px;
  opacity: 0.9;
}

.chatbot-close {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: white;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.chatbot-close:hover {
  background: rgba(255, 255, 255, 0.3);
}

.chatbot-close svg {
  width: 18px;
  height: 18px;
}

/* ========================================
   Chat Messages Area
   ======================================== */
.chatbot-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: #f9fafb;
}

.chatbot-messages::-webkit-scrollbar {
  width: 6px;
}

.chatbot-messages::-webkit-scrollbar-track {
  background: transparent;
}

.chatbot-messages::-webkit-scrollbar-thumb {
  background: #d1d5db;
  border-radius: 3px;
}

.chatbot-messages::-webkit-scrollbar-thumb:hover {
  background: #9ca3af;
}

/* ========================================
   Message Bubbles
   ======================================== */
.chatbot-message {
  display: flex;
  gap: 10px;
  animation: messageSlideIn 0.3s ease;
  max-width: 85%;
}

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

.chatbot-message.user {
  flex-direction: row-reverse;
  align-self: flex-end;
}

.chatbot-message.bot {
  flex-direction: row;
  align-self: flex-start;
}

.message-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  flex-shrink: 0;
}

.chatbot-message.user .message-avatar {
  background: var(--chatbot-secondary);
  color: white;
}

.chatbot-message.bot .message-avatar {
  background: var(--chatbot-primary);
  color: white;
}

.message-bubble {
  padding: 12px 16px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.5;
  word-wrap: break-word;
}

.chatbot-message.user .message-bubble {
  background: var(--chatbot-secondary);
  color: white;
  border-bottom-right-radius: 4px;
}

.chatbot-message.bot .message-bubble {
  background: white;
  color: var(--chatbot-text);
  border-bottom-left-radius: 4px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

/* ========================================
   Welcome Message
   ======================================== */
.chatbot-welcome {
  text-align: center;
  padding: 20px;
  color: #6b7280;
}

.chatbot-welcome h4 {
  margin: 0 0 8px 0;
  color: var(--chatbot-text);
  font-size: 16px;
}

.chatbot-welcome p {
  margin: 0 0 16px 0;
  font-size: 14px;
}

.chatbot-suggestions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.suggestion-btn {
  background: white;
  border: 1px solid var(--chatbot-border);
  padding: 10px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  color: var(--chatbot-text);
  transition: all 0.2s ease;
  text-align: left;
}

.suggestion-btn:hover {
  background: #f3f4f6;
  border-color: var(--chatbot-secondary);
  color: var(--chatbot-secondary);
}

/* ========================================
   Typing Indicator
   ======================================== */
.typing-indicator {
  display: flex;
  gap: 10px;
  align-items: center;
}

.typing-indicator .message-bubble {
  display: flex;
  gap: 4px;
  padding: 12px 16px;
}

.typing-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #9ca3af;
  animation: typingBounce 1.4s infinite;
}

.typing-dot:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typingBounce {
  0%, 60%, 100% {
    transform: translateY(0);
  }
  30% {
    transform: translateY(-6px);
  }
}

/* ========================================
   Chat Input Area
   ======================================== */
.chatbot-input-wrapper {
  padding: 16px 20px;
  background: var(--chatbot-bg);
  border-top: 1px solid var(--chatbot-border);
  border-radius: 0 0 16px 16px;
}

.chatbot-input-container {
  display: flex;
  gap: 8px;
  align-items: center;
}

.chatbot-input {
  flex: 1;
  border: 1px solid var(--chatbot-border);
  padding: 12px 16px;
  border-radius: 24px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: all 0.2s ease;
}

.chatbot-input:focus {
  border-color: var(--chatbot-secondary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.chatbot-input::placeholder {
  color: #9ca3af;
}

.chatbot-send-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--chatbot-secondary);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.chatbot-send-btn:hover {
  background: var(--chatbot-primary);
  transform: scale(1.05);
}

.chatbot-send-btn:active {
  transform: scale(0.95);
}

.chatbot-send-btn:disabled {
  background: #d1d5db;
  cursor: not-allowed;
  transform: scale(1);
}

.chatbot-send-btn svg {
  width: 18px;
  height: 18px;
}

/* ========================================
   Message Content Formatting
   ======================================== */
.message-bubble h3 {
  font-size: 15px;
  font-weight: 600;
  margin: 12px 0 8px 0;
  color: inherit;
}

.message-bubble h4 {
  font-size: 14px;
  font-weight: 600;
  margin: 10px 0 6px 0;
  color: inherit;
}

.message-bubble p {
  margin: 0 0 8px 0;
}

.message-bubble p:last-child {
  margin-bottom: 0;
}

.message-bubble ul,
.message-bubble ol {
  margin: 8px 0;
  padding-left: 20px;
}

.message-bubble li {
  margin: 4px 0;
  line-height: 1.6;
}

.message-bubble strong {
  font-weight: 600;
}

.message-bubble em {
  font-style: italic;
}

.message-bubble a {
  color: var(--chatbot-secondary);
  text-decoration: underline;
  transition: opacity 0.2s ease;
}

.message-bubble a:hover {
  opacity: 0.8;
}

.chatbot-message.bot .message-bubble a {
  color: var(--chatbot-secondary);
}

.chatbot-message.user .message-bubble a {
  color: white;
  text-decoration: underline;
}

/* ========================================
   Error Message
   ======================================== */
.chatbot-error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 13px;
  text-align: center;
}

/* ========================================
   API Key Notice
   ======================================== */
.chatbot-api-notice {
  background: #fef3c7;
  border: 1px solid #fde68a;
  color: #92400e;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 13px;
  text-align: center;
  margin: 12px;
}

.chatbot-api-notice strong {
  display: block;
  margin-bottom: 4px;
}

/* ========================================
   Mobile Responsive
   ======================================== */
@media (max-width: 768px) {
  .chatbot-trigger {
    bottom: 20px;
    right: 20px;
    width: 56px;
    height: 56px;
  }

  .chatbot-trigger svg {
    width: 24px;
    height: 24px;
  }

  .chatbot-window {
    bottom: 90px;
    right: 20px;
    left: 20px;
    width: auto;
    max-width: none;
    height: 500px;
    max-height: calc(100vh - 130px);
  }

  .chatbot-header {
    padding: 16px;
  }

  .chatbot-messages {
    padding: 16px;
  }

  .chatbot-message {
    max-width: 90%;
  }

  .message-bubble {
    font-size: 13px;
  }
}

@media (max-width: 480px) {
  .chatbot-window {
    bottom: 10px;
    right: 10px;
    left: 10px;
    height: calc(100vh - 80px);
    max-height: none;
    border-radius: 12px;
  }

  .chatbot-trigger {
    bottom: 16px;
    right: 16px;
  }
}

/* ========================================
   Accessibility
   ======================================== */
.chatbot-trigger:focus,
.chatbot-close:focus,
.chatbot-send-btn:focus,
.suggestion-btn:focus {
  outline: 2px solid var(--chatbot-secondary);
  outline-offset: 2px;
}

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