/* ============================================
   CHATBOT WIDGET STYLES
   ============================================
   Customize the accent color below to match
   your brand. Change the CSS variable value
   to any valid color (hex, rgb, hsl, etc.)
   ============================================ */

:root {
  --chat-accent: #4f46e5;
  --chat-accent-hover: #4338ca;
  --chat-bg: #ffffff;
  --chat-header-text: #ffffff;
  --chat-body-bg: #f9fafb;
  --chat-user-msg: var(--chat-accent);
  --chat-bot-msg: #e5e7eb;
  --chat-text: #1f2937;
  --chat-text-light: #6b7280;
  --chat-border: #e5e7eb;
  --chat-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  --chat-radius: 16px;
  --chat-btn-size: 60px;
}

/* Reset for widget scope */
#chat-widget-container *,
#chat-widget-container *::before,
#chat-widget-container *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ── Floating Button ── */

#chat-widget-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: var(--chat-btn-size);
  height: var(--chat-btn-size);
  border-radius: 50%;
  background: var(--chat-accent);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  transition: transform 0.25s ease, background 0.2s ease, box-shadow 0.25s ease;
  z-index: 10000;
}

#chat-widget-btn:hover {
  background: var(--chat-accent-hover);
  transform: scale(1.08);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
}

#chat-widget-btn svg {
  width: 28px;
  height: 28px;
  fill: var(--chat-header-text);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

#chat-widget-btn .chat-icon-close {
  position: absolute;
}

#chat-widget-btn.open .chat-icon-open {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}

#chat-widget-btn.open .chat-icon-close {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

#chat-widget-btn:not(.open) .chat-icon-open {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

#chat-widget-btn:not(.open) .chat-icon-close {
  opacity: 0;
  transform: rotate(-90deg) scale(0.5);
}

/* ── Chat Window ── */

#chat-widget-window {
  position: fixed;
  bottom: 100px;
  right: 24px;
  width: 400px;
  max-width: calc(100vw - 32px);
  height: 560px;
  max-height: calc(100vh - 140px);
  background: var(--chat-bg);
  border-radius: var(--chat-radius);
  box-shadow: var(--chat-shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 9999;
  opacity: 0;
  transform: translateY(20px) scale(0.95);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

#chat-widget-window.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

/* ── Header ── */

#chat-widget-header {
  background: var(--chat-accent);
  color: var(--chat-header-text);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

#chat-widget-header .chat-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
  font-weight: 700;
}

#chat-widget-header .chat-header-info {
  flex: 1;
  min-width: 0;
}

#chat-widget-header .chat-business-name {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.3;
}

#chat-widget-header .chat-status {
  font-size: 12px;
  opacity: 0.85;
  display: flex;
  align-items: center;
  gap: 6px;
}

#chat-widget-header .chat-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4ade80;
  display: inline-block;
}

/* ── Messages Area ── */

#chat-widget-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px 16px;
  background: var(--chat-body-bg);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

#chat-widget-messages::-webkit-scrollbar {
  width: 6px;
}

#chat-widget-messages::-webkit-scrollbar-track {
  background: transparent;
}

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

.chat-message {
  display: flex;
  gap: 8px;
  max-width: 85%;
  animation: chatFadeIn 0.3s ease;
}

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

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

.chat-message.assistant {
  align-self: flex-start;
}

.chat-bubble {
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--chat-text);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.chat-message.user .chat-bubble {
  background: var(--chat-user-msg);
  color: #ffffff;
  border-bottom-right-radius: 4px;
}

.chat-message.assistant .chat-bubble {
  background: var(--chat-bot-msg);
  border-bottom-left-radius: 4px;
}

/* ── Typing Indicator ── */

.chat-typing {
  display: flex;
  gap: 8px;
  align-self: flex-start;
  max-width: 85%;
  animation: chatFadeIn 0.3s ease;
}

.chat-typing .chat-bubble {
  background: var(--chat-bot-msg);
  padding: 12px 18px;
  border-bottom-left-radius: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.typing-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--chat-text-light);
  animation: typingBounce 1.4s infinite ease-in-out;
}

.typing-dot:nth-child(2) {
  animation-delay: 0.16s;
}

.typing-dot:nth-child(3) {
  animation-delay: 0.32s;
}

@keyframes typingBounce {
  0%, 60%, 100% {
    transform: translateY(0);
    opacity: 0.4;
  }
  30% {
    transform: translateY(-6px);
    opacity: 1;
  }
}

/* ── Welcome message ── */

.chat-welcome {
  text-align: center;
  padding: 20px 16px;
  color: var(--chat-text-light);
  font-size: 13px;
  line-height: 1.5;
}

/* ── Input Area ── */

#chat-widget-input-area {
  padding: 12px 16px;
  border-top: 1px solid var(--chat-border);
  display: flex;
  align-items: flex-end;
  gap: 8px;
  background: var(--chat-bg);
  flex-shrink: 0;
}

#chat-widget-input {
  flex: 1;
  border: 1px solid var(--chat-border);
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 14px;
  font-family: inherit;
  line-height: 1.4;
  resize: none;
  outline: none;
  max-height: 100px;
  background: var(--chat-body-bg);
  color: var(--chat-text);
  transition: border-color 0.2s ease;
}

#chat-widget-input:focus {
  border-color: var(--chat-accent);
}

#chat-widget-input::placeholder {
  color: var(--chat-text-light);
}

#chat-widget-send-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--chat-accent);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.2s ease, transform 0.15s ease;
}

#chat-widget-send-btn:hover {
  background: var(--chat-accent-hover);
  transform: scale(1.05);
}

#chat-widget-send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

#chat-widget-send-btn svg {
  width: 18px;
  height: 18px;
  fill: #ffffff;
}

/* ── Powered-by footer ── */

#chat-widget-footer {
  text-align: center;
  padding: 6px;
  font-size: 11px;
  color: var(--chat-text-light);
  background: var(--chat-bg);
  border-top: 1px solid var(--chat-border);
  flex-shrink: 0;
}

/* ── Mobile Responsive ── */

@media (max-width: 480px) {
  #chat-widget-window {
    bottom: 0;
    right: 0;
    width: 100vw;
    height: 100vh;
    max-height: 100vh;
    border-radius: 0;
  }

  #chat-widget-btn {
    bottom: 16px;
    right: 16px;
  }

  #chat-widget-window.open ~ #chat-widget-btn {
    display: none;
  }

  #chat-widget-header {
    padding: 14px 16px;
  }
}