/* ==========================================================
   RAG Section -- portfolio-native styling
   matches dark theme (#121212) + orange gradient (#ff9f00 → #ff6b6b)
   ========================================================== */

/* --- Section Container --- */

.rag-section {
  margin: 40px 0;
  padding: 40px 20px;
  position: relative;
}

.rag-section h2 {
  text-align: center;
  font-size: 1.8rem;
  margin-bottom: 8px;
  background: linear-gradient(135deg, #ff9f00, #ff6b6b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.rag-section-sub {
  text-align: center;
  color: #aaa;
  font-size: 0.92rem;
  margin-bottom: 12px;
}

.rag-section-link {
  display: block;
  text-align: center;
  margin-bottom: 28px;
}

.rag-section-link a {
  color: #ff9f00;
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.2s;
}

.rag-section-link a:hover {
  color: #ff6b6b;
  text-decoration: underline;
}

/* --- Chat Container --- */

.rag-chat {
  max-width: 700px;
  margin: 0 auto 30px;
  background: rgba(30, 30, 30, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 159, 0, 0.15);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 159, 0, 0.05);
}

/* --- Messages Area --- */

.rag-messages {
  height: 420px;
  overflow-y: auto;
  padding: 20px;
  scroll-behavior: smooth;
}

.rag-messages::-webkit-scrollbar {
  width: 5px;
}

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

.rag-messages::-webkit-scrollbar-thumb {
  background: rgba(255, 159, 0, 0.2);
  border-radius: 3px;
}

/* --- Welcome State --- */

.rag-welcome {
  text-align: center;
  padding: 50px 20px 10px;
}

.rag-welcome-icon {
  color: #ff9f00;
  opacity: 0.5;
  margin-bottom: 14px;
}

.rag-welcome-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #e6e6e6;
  margin-bottom: 6px;
}

.rag-welcome-sub {
  display: block;
  font-size: 0.8rem;
  color: #777;
  max-width: 400px;
  margin: 0 auto;
  line-height: 1.5;
}

/* --- Suggestion Chips --- */

.rag-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  padding: 16px 20px;
}

.rag-chip {
  background: rgba(255, 159, 0, 0.08);
  border: 1px solid rgba(255, 159, 0, 0.2);
  color: #ccc;
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-family: 'Roboto', sans-serif;
  cursor: pointer;
  transition: all 0.25s ease;
}

.rag-chip:hover {
  background: rgba(255, 159, 0, 0.15);
  border-color: #ff9f00;
  color: #ff9f00;
  transform: translateY(-1px);
}

/* --- Messages --- */

.rag-msg {
  margin-bottom: 14px;
  animation: ragFadeIn 0.3s ease;
}

.rag-msg-user {
  display: flex;
  justify-content: flex-end;
}

.rag-msg-user .rag-msg-text {
  background: linear-gradient(135deg, rgba(255, 159, 0, 0.15), rgba(255, 107, 107, 0.1));
  border: 1px solid rgba(255, 159, 0, 0.25);
  border-radius: 14px 14px 4px 14px;
  padding: 10px 14px;
  max-width: 78%;
  font-size: 0.9rem;
  color: #e6e6e6;
}

.rag-msg-assistant .rag-msg-text {
  background: rgba(40, 40, 40, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 14px 14px 14px 4px;
  padding: 12px 16px;
  max-width: 88%;
  font-size: 0.9rem;
  color: #ddd;
  line-height: 1.65;
}

.rag-msg-assistant .rag-msg-text p {
  margin-bottom: 8px;
}

.rag-msg-assistant .rag-msg-text p:last-child {
  margin-bottom: 0;
}

.rag-msg-assistant .rag-msg-text code {
  background: rgba(255, 159, 0, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 0.85em;
  color: #ff9f00;
}

.rag-msg-assistant .rag-msg-text strong {
  color: #ff9f00;
  font-weight: 600;
}

/* --- Thinking Dots --- */

.rag-thinking .rag-msg-text {
  padding: 12px 18px;
}

.rag-dots {
  display: flex;
  gap: 5px;
  align-items: center;
}

.rag-dots span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #ff9f00;
  opacity: 0.5;
  animation: ragBounce 1.2s ease-in-out infinite;
}

.rag-dots span:nth-child(2) { animation-delay: 0.15s; }
.rag-dots span:nth-child(3) { animation-delay: 0.3s; }

/* --- Source Panel --- */

.rag-meta {
  margin-top: 8px;
}

.rag-sources-btn {
  background: none;
  border: none;
  color: #777;
  font-size: 0.76rem;
  font-family: 'Roboto', sans-serif;
  cursor: pointer;
  padding: 4px 0;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  gap: 5px;
}

.rag-sources-btn:hover {
  color: #ff9f00;
}

.rag-sources-btn i {
  font-size: 0.7rem;
}

.rag-sources-panel {
  display: none;
  margin-top: 8px;
  padding: 12px;
  background: rgba(25, 25, 25, 0.9);
  border: 1px solid rgba(255, 159, 0, 0.1);
  border-radius: 10px;
}

.rag-sources-panel.open {
  display: block;
  animation: ragFadeIn 0.2s ease;
}

.rag-timing {
  font-family: 'Courier New', monospace;
  font-size: 0.7rem;
  color: #666;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.rag-source {
  display: flex;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.rag-source:last-of-type {
  border-bottom: none;
}

.rag-source-score {
  font-family: 'Courier New', monospace;
  font-size: 0.72rem;
  color: #4ade80;
  white-space: nowrap;
  min-width: 48px;
  font-weight: 600;
}

.rag-source-text {
  font-size: 0.75rem;
  color: #888;
  line-height: 1.5;
}

.rag-mode-tag {
  font-size: 0.7rem;
  color: #555;
  margin-top: 8px;
  font-style: italic;
}

/* --- Status Bar --- */

.rag-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(20, 20, 20, 0.6);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 0.76rem;
  color: #777;
}

.rag-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #555;
  transition: background 0.3s;
  flex-shrink: 0;
}

.rag-status-dot.loading {
  background: #f59e0b;
  animation: ragPulse 1.5s ease-in-out infinite;
}

.rag-status-dot.ready {
  background: #4ade80;
}

.rag-status-dot.error {
  background: #ef4444;
}

/* --- Input Row --- */

.rag-input-row {
  display: flex;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.rag-input {
  flex: 1;
  background: transparent;
  border: none;
  color: #e6e6e6;
  padding: 14px 16px;
  font-size: 0.9rem;
  font-family: 'Roboto', sans-serif;
  outline: none;
}

.rag-input::placeholder {
  color: #555;
}

.rag-clear {
  background: transparent;
  border: none;
  color: #555;
  padding: 14px 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.rag-clear:hover {
  color: #ef4444;
  transform: scale(1.1);
}

.rag-send {
  background: transparent;
  border: none;
  color: #ff9f00;
  padding: 14px 16px;
  cursor: pointer;
  transition: all 0.2s;
}

.rag-send:hover {
  color: #ff6b6b;
  transform: scale(1.1);
}

/* --- How It Works Block --- */

.rag-how-it-works {
  max-width: 700px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.rag-step {
  background: rgba(30, 30, 30, 0.5);
  border: 1px solid rgba(255, 159, 0, 0.1);
  border-radius: 12px;
  padding: 20px 16px;
  text-align: center;
  transition: border-color 0.3s, transform 0.3s;
}

.rag-step:hover {
  border-color: rgba(255, 159, 0, 0.3);
  transform: translateY(-2px);
}

.rag-step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255, 159, 0, 0.2), rgba(255, 107, 107, 0.15));
  border: 1px solid rgba(255, 159, 0, 0.3);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: #ff9f00;
  margin-bottom: 10px;
}

.rag-step strong {
  display: block;
  font-size: 0.88rem;
  color: #e6e6e6;
  margin-bottom: 6px;
}

.rag-step p {
  font-size: 0.78rem;
  color: #888;
  line-height: 1.5;
  margin: 0;
}

/* --- Light Mode --- */

body.light-mode .rag-chat {
  background: rgba(255, 255, 255, 0.85);
  border-color: rgba(255, 159, 0, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(255, 159, 0, 0.08);
}

body.light-mode .rag-welcome-title { color: #333; }
body.light-mode .rag-welcome-sub { color: #888; }

body.light-mode .rag-msg-user .rag-msg-text {
  background: linear-gradient(135deg, rgba(255, 159, 0, 0.12), rgba(255, 107, 107, 0.08));
  border-color: rgba(255, 159, 0, 0.2);
  color: #333;
}

body.light-mode .rag-msg-assistant .rag-msg-text {
  background: rgba(245, 245, 245, 0.9);
  border-color: rgba(0, 0, 0, 0.06);
  color: #444;
}

body.light-mode .rag-chip {
  background: rgba(255, 159, 0, 0.06);
  border-color: rgba(255, 159, 0, 0.15);
  color: #666;
}

body.light-mode .rag-chip:hover {
  background: rgba(255, 159, 0, 0.12);
  color: #e68a00;
}

body.light-mode .rag-input {
  color: #333;
}

body.light-mode .rag-input::placeholder {
  color: #aaa;
}

body.light-mode .rag-status {
  background: rgba(245, 245, 245, 0.8);
  border-top-color: rgba(0, 0, 0, 0.06);
  color: #888;
}

body.light-mode .rag-sources-panel {
  background: rgba(250, 250, 250, 0.95);
  border-color: rgba(0, 0, 0, 0.06);
}

body.light-mode .rag-source-text { color: #666; }
body.light-mode .rag-timing { color: #999; border-bottom-color: rgba(0,0,0,0.06); }
body.light-mode .rag-sources-btn { color: #999; }
body.light-mode .rag-sources-btn:hover { color: #e68a00; }

body.light-mode .rag-clear { color: #aaa; }
body.light-mode .rag-clear:hover { color: #ef4444; }

body.light-mode .rag-step {
  background: rgba(255, 255, 255, 0.7);
  border-color: rgba(255, 159, 0, 0.12);
}

body.light-mode .rag-step strong { color: #333; }
body.light-mode .rag-step p { color: #777; }

body.light-mode .rag-section-sub { color: #777; }

/* --- Animations --- */

@keyframes ragFadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes ragBounce {
  0%, 60%, 100% { transform: translateY(0); }
  30% { transform: translateY(-5px); }
}

@keyframes ragPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* --- Responsive --- */

@media (max-width: 768px) {
  .rag-section {
    padding: 30px 10px;
    margin: 30px 0;
  }

  .rag-section h2 {
    font-size: 1.5rem;
  }

  .rag-messages {
    height: 350px;
    padding: 14px;
  }

  .rag-msg-user .rag-msg-text,
  .rag-msg-assistant .rag-msg-text {
    max-width: 92%;
  }

  .rag-suggestions {
    flex-direction: column;
    align-items: center;
  }

  .rag-chip {
    width: 100%;
    max-width: 280px;
    text-align: center;
  }

  .rag-how-it-works {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .rag-step {
    padding: 16px;
  }
}

@media (max-width: 480px) {
  .rag-messages {
    height: 300px;
  }

  .rag-input {
    font-size: 0.85rem;
    padding: 12px;
  }
}