/* =====================================================
   LUMMET AI — Frontend Chat Widget
   ===================================================== */

.lummet-ai-root {
  --lummet-bg: #0a0a0f;
  --lummet-surface: #15151f;
  --lummet-surface-hover: #1e1e2e;
  --lummet-border: #2a2a3a;
  --lummet-text: #e8e8f0;
  --lummet-text-muted: #8888a0;
  --lummet-accent: #6c5ce7;
  --lummet-accent-hover: #7d6ff0;
  --lummet-user-bg: #6c5ce7;
  --lummet-user-text: #ffffff;
  --lummet-ai-bg: #1e1e2e;
  --lummet-radius: 16px;
  --lummet-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Floating Button */
.lummet-ai-button {
  position: fixed;
  right: 15px;
  bottom: 60px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  color: white;
  font-size: 24px;
  box-shadow: 0 8px 30px rgba(108, 92, 231, 0.4);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  animation: lummet-pulse 3s ease-in-out infinite;
}

.lummet-ai-button:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 40px rgba(108, 92, 231, 0.6);
}

.lummet-ai-button.active { animation: none; }

@keyframes lummet-pulse {
  0%, 100% { box-shadow: 0 8px 30px rgba(108, 92, 231, 0.4); }
  50% { box-shadow: 0 8px 40px rgba(108, 92, 231, 0.6); }
}

/* Chat Window */
.lummet-ai-window {
  position: fixed;
  right: 20px;
  bottom: 90px;
  width: 400px;
  height: 600px;
  max-height: calc(100vh - 120px);
  background: var(--lummet-bg);
  border: 1px solid var(--lummet-border);
  border-radius: var(--lummet-radius);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  display: none;
  flex-direction: column;
  overflow: hidden;
  z-index: 99998;
  font-family: var(--lummet-font);
  color: var(--lummet-text);
  opacity: 0;
  transform: translateY(20px) scale(0.95);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.lummet-ai-window.open {
  display: flex;
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Header */
.lummet-ai-header {
  background: linear-gradient(135deg, #6c5ce7, #5547c9);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

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

.lummet-ai-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; flex-shrink: 0;
}

.lummet-ai-title-block h3 { margin: 0; font-size: 16px; font-weight: 700; color: white; }
.lummet-ai-title-block span { font-size: 12px; color: rgba(255, 255, 255, 0.7); display: flex; align-items: center; gap: 4px; }

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

.lummet-ai-header-actions { display: flex; gap: 8px; }

.lummet-ai-header-btn {
  background: rgba(255, 255, 255, 0.1); border: none; color: white;
  width: 32px; height: 32px; border-radius: 8px; cursor: pointer;
  font-size: 16px; display: flex; align-items: center; justify-content: center;
  transition: background 0.2s;
}
.lummet-ai-header-btn:hover { background: rgba(255, 255, 255, 0.2); }

/* Messages Area */
.lummet-ai-messages {
  flex: 1; overflow-y: auto; padding: 16px;
  display: flex; flex-direction: column; gap: 12px;
  scroll-behavior: smooth;
}

.lummet-ai-messages::-webkit-scrollbar { width: 6px; }
.lummet-ai-messages::-webkit-scrollbar-track { background: transparent; }
.lummet-ai-messages::-webkit-scrollbar-thumb { background: var(--lummet-border); border-radius: 3px; }

/* Welcome Message */
.lummet-ai-welcome { text-align: center; padding: 20px; color: var(--lummet-text-muted); }
.lummet-ai-welcome-icon { font-size: 48px; margin-bottom: 12px; }
.lummet-ai-welcome h4 { color: var(--lummet-text); font-size: 18px; margin: 0 0 8px; }
.lummet-ai-welcome p { font-size: 14px; margin: 0 0 16px; line-height: 1.5; }

/* Suggested Prompts */
.lummet-ai-suggestions { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; padding: 0 8px; }

.lummet-ai-suggestion-chip {
  background: var(--lummet-surface); border: 1px solid var(--lummet-border);
  color: var(--lummet-text); padding: 8px 14px; border-radius: 20px;
  font-size: 13px; cursor: pointer; transition: all 0.2s; font-family: var(--lummet-font);
}
.lummet-ai-suggestion-chip:hover {
  background: var(--lummet-accent); border-color: var(--lummet-accent); color: white;
}

/* Message Bubbles */
.lummet-msg {
  max-width: 85%; padding: 12px 16px; border-radius: 16px;
  font-size: 14px; line-height: 1.6; word-wrap: break-word;
  animation: lummet-msg-in 0.3s ease;
}

@keyframes lummet-msg-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.lummet-msg-ai {
  background: var(--lummet-ai-bg); border: 1px solid var(--lummet-border);
  border-bottom-left-radius: 4px; align-self: flex-start;
}

.lummet-msg-user {
  background: var(--lummet-user-bg); color: var(--lummet-user-text);
  border-bottom-right-radius: 4px; align-self: flex-end;
}

/* Markdown in messages */
.lummet-msg-ai a { color: #a29bfe; text-decoration: none; }
.lummet-msg-ai a:hover { text-decoration: underline; }
.lummet-msg-ai ul, .lummet-msg-ai ol { margin: 8px 0; padding-left: 20px; }
.lummet-msg-ai li { margin: 4px 0; }
.lummet-msg-ai strong { color: #fff; }
.lummet-msg-ai code { background: rgba(255,255,255,0.1); padding: 2px 6px; border-radius: 4px; font-size: 13px; }
.lummet-msg-ai pre { background: rgba(0,0,0,0.3); padding: 12px; border-radius: 8px; overflow-x: auto; margin: 8px 0; }
.lummet-msg-ai pre code { background: none; padding: 0; }

/* Typing Indicator */
.lummet-typing {
  display: flex; gap: 4px; padding: 12px 16px;
  background: var(--lummet-ai-bg); border: 1px solid var(--lummet-border);
  border-radius: 16px; border-bottom-left-radius: 4px;
  align-self: flex-start; width: fit-content;
}

.lummet-typing-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--lummet-text-muted);
  animation: lummet-typing-bounce 1.4s infinite;
}

.lummet-typing-dot:nth-child(2) { animation-delay: 0.2s; }
.lummet-typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes lummet-typing-bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-8px); opacity: 1; }
}

/* Input Area */
.lummet-ai-input-area {
  padding: 12px 16px; border-top: 1px solid var(--lummet-border);
  display: flex; gap: 8px; align-items: flex-end; flex-shrink: 0;
  background: var(--lummet-surface);
}

.lummet-ai-input {
  flex: 1; background: var(--lummet-bg); border: 1px solid var(--lummet-border);
  border-radius: 12px; padding: 12px 16px; color: var(--lummet-text);
  font-size: 14px; font-family: var(--lummet-font); resize: none;
  max-height: 120px; min-height: 44px; outline: none;
  transition: border-color 0.2s; line-height: 1.4;
}
.lummet-ai-input:focus { border-color: var(--lummet-accent); }
.lummet-ai-input::placeholder { color: var(--lummet-text-muted); }

.lummet-ai-send {
  background: var(--lummet-accent); border: none; color: white;
  width: 44px; height: 44px; border-radius: 12px; cursor: pointer;
  font-size: 18px; display: flex; align-items: center; justify-content: center;
  transition: background 0.2s, transform 0.1s; flex-shrink: 0;
}
.lummet-ai-send:hover { background: var(--lummet-accent-hover); }
.lummet-ai-send:active { transform: scale(0.95); }
.lummet-ai-send:disabled { opacity: 0.5; cursor: not-allowed; }

/* Footer */
.lummet-ai-footer {
  padding: 8px 16px; text-align: center; font-size: 11px;
  color: var(--lummet-text-muted); border-top: 1px solid var(--lummet-border);
  flex-shrink: 0; background: var(--lummet-surface);
}
.lummet-ai-footer a { color: var(--lummet-accent); text-decoration: none; }

/* Mobile Responsive */
@media (max-width: 500px) {
  .lummet-ai-window {
    width: calc(100vw - 24px); height: calc(100vh - 100px);
    right: 12px; bottom: 84px; border-radius: 12px;
  }
  .lummet-ai-button { right: 11px; bottom: 97px; }
}

/* Accessibility */
.lummet-ai-button:focus-visible { outline: 2px solid var(--lummet-accent); outline-offset: 4px; }
.lummet-ai-input:focus-visible { outline: 2px solid var(--lummet-accent); outline-offset: 2px; }
.lummet-ai-suggestion-chip:focus-visible { outline: 2px solid var(--lummet-accent); outline-offset: 2px; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .lummet-ai-button { animation: none; }
  .lummet-msg { animation: none; }
  .lummet-typing-dot { animation: none; opacity: 0.7; }
}