/* ══════════════════════════════════════════════════
   Tekno Rehberi Chat — Frontend CSS v3.1
   Teknoloji danışmanı arayüzü
══════════════════════════════════════════════════ */

:root {
  --cai-primary:    #1a73e8;
  --cai-secondary:  #5f9cf7;
  --cai-grad:       linear-gradient(135deg, var(--cai-primary), var(--cai-secondary));
  --cai-bg:         #ffffff;
  --cai-surface:    #f0f4f8;
  --cai-border:     rgba(26, 115, 232, 0.14);
  --cai-text:       #0f172a;
  --cai-muted:      #64748b;
  --cai-shadow:     0 20px 60px rgba(26, 115, 232, 0.22);
  --cai-r:          18px;
  --cai-r-msg:      14px;
  --cai-font:       'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  --cai-w:          390px;
  --cai-h:          590px;
  --cai-z:          99999;
}

/* ── Wrapper ───────────────────────────────────── */
#cai-chatbot-wrapper {
  position: fixed;
  z-index: var(--cai-z);
  font-family: var(--cai-font);
}
#cai-chatbot-wrapper.cai-position-bottom-right { bottom: 24px; right: 5em; }
#cai-chatbot-wrapper.cai-position-bottom-left  { bottom: 24px; left: 24px; }

/* ── Toggle Button ─────────────────────────────── */
#cai-toggle-btn {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: var(--cai-grad);
  border: none;
  cursor: pointer;
  box-shadow: var(--cai-shadow), 0 4px 16px rgba(26, 115, 232, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s;
  position: relative;
  outline: none;
}
#cai-toggle-btn:hover {
  transform: scale(1.06) translateY(-2px);
  box-shadow: 0 24px 48px rgba(26, 115, 232, 0.28), 0 8px 20px rgba(26, 115, 232, 0.2);
}
#cai-toggle-btn svg { width: 28px; height: 28px; }

#cai-toggle-btn.cai-toggle-custom {
  background: transparent;
  box-shadow: var(--cai-shadow), 0 4px 16px rgba(15, 23, 42, 0.2);
  padding: 0;
  overflow: hidden;
}
#cai-toggle-btn.cai-toggle-custom .cai-icon-open {
  display: flex;
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
}
#cai-toggle-btn .cai-toggle-icon-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 16px;
  display: block;
}
#cai-toggle-btn.cai-toggle-custom .cai-icon-close {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.55);
  border-radius: 16px;
}
#cai-toggle-btn.cai-toggle-custom.cai-toggle-is-open .cai-icon-open {
  visibility: hidden;
}
#cai-toggle-btn.cai-toggle-custom.cai-toggle-is-open .cai-icon-close {
  display: flex;
}

.cai-notification-dot {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 11px;
  height: 11px;
  background: #22c55e;
  border-radius: 50%;
  border: 2px solid white;
  display: none;
  animation: cai-pulse 2s infinite;
}
.cai-notification-dot.active { display: block; }
@keyframes cai-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.15); opacity: 0.75; }
}

/* ── Chat Window ───────────────────────────────── */
#cai-chat-window {
  position: absolute;
  bottom: 76px;
  width: var(--cai-w);
  height: var(--cai-h);
  background: var(--cai-bg);
  border-radius: var(--cai-r);
  box-shadow: var(--cai-shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--cai-border);
  animation: cai-slideIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.cai-position-bottom-right #cai-chat-window { right: 0; }
.cai-position-bottom-left  #cai-chat-window { left: 0; }
@keyframes cai-slideIn {
  from { opacity: 0; transform: translateY(16px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ── Header ─────────────────────────────────────── */
.cai-header {
  background: var(--cai-grad);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}
.cai-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 100% 0%, rgba(255, 255, 255, 0.15) 0%, transparent 45%),
    radial-gradient(circle at 0% 100%, rgba(0, 0, 0, 0.06) 0%, transparent 40%);
  pointer-events: none;
}
.cai-header-avatar {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.cai-header-avatar svg { width: 42px; height: 42px; }
.cai-header-avatar img {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  border: 2px solid rgba(255, 255, 255, 0.35);
}
.cai-header-info { flex: 1; min-width: 0; position: relative; z-index: 1; }
.cai-header-info h3 {
  color: white;
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}
.cai-header-info span {
  color: rgba(255, 255, 255, 0.88);
  font-size: 11px;
  display: block;
  margin-top: 2px;
}
.cai-header-actions { display: flex; gap: 6px; position: relative; z-index: 1; }
.cai-header-btn {
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  width: 32px;
  height: 32px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
  padding: 0;
}
.cai-header-btn:hover { background: rgba(255, 255, 255, 0.28); }

/* ── Categories ────────────────────────────────── */
.cai-categories {
  background: var(--cai-surface);
  padding: 10px 14px;
  border-bottom: 1px solid var(--cai-border);
  flex-shrink: 0;
}
.cai-cat-label {
  font-size: 10px;
  color: var(--cai-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
  margin: 0 0 8px;
}
.cai-cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.cai-cat-btn {
  background: white;
  border: 1px solid var(--cai-border);
  border-radius: 10px;
  padding: 7px 6px;
  cursor: pointer;
  font-size: 10.5px;
  font-family: var(--cai-font);
  color: var(--cai-text);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: all 0.2s;
  font-weight: 600;
}
.cai-cat-btn:hover,
.cai-cat-btn.active {
  background: var(--cat-color, var(--cai-primary));
  color: white;
  border-color: transparent;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.12);
}
.cai-cat-icon { font-size: 13px; line-height: 1; }

/* ── Messages ──────────────────────────────────── */
.cai-messages {
  flex: 1;
  overflow-y: auto;
  padding: 14px 14px 8px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scroll-behavior: smooth;
  background: linear-gradient(180deg, #fafbfd 0%, #ffffff 24px);
  scrollbar-width: thin;
  scrollbar-color: var(--cai-primary) rgba(15, 23, 42, 0.06);
}
.cai-messages::-webkit-scrollbar { width: 6px; }
.cai-messages::-webkit-scrollbar-track { background: transparent; }
.cai-messages::-webkit-scrollbar-thumb {
  background: rgba(26, 115, 232, 0.35);
  border-radius: 4px;
}
.cai-messages::-webkit-scrollbar-thumb:hover { background: var(--cai-primary); }

.cai-message { display: flex; flex-direction: column; animation: cai-msgIn 0.28s ease-out; }
@keyframes cai-msgIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.cai-message-user  { align-items: flex-end; }
.cai-message-bot   { align-items: flex-start; }
.cai-message-error { align-items: flex-start; }

.cai-bubble {
  max-width: 86%;
  padding: 10px 14px;
  border-radius: var(--cai-r-msg);
  font-size: 13.5px;
  line-height: 1.55;
  word-break: break-word;
}
.cai-message-user .cai-bubble {
  background: var(--cai-grad);
  color: white;
  border-bottom-right-radius: 4px;
  box-shadow: 0 2px 8px rgba(26, 115, 232, 0.2);
}
.cai-message-bot .cai-bubble {
  background: white;
  color: var(--cai-text);
  border-bottom-left-radius: 4px;
  border: 1px solid var(--cai-border);
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.04);
}
.cai-message-error .cai-bubble {
  background: #fef2f2;
  color: #b91c1c;
  border: 1px solid #fecaca;
  border-bottom-left-radius: 4px;
}

.cai-time {
  font-size: 10px;
  color: var(--cai-muted);
  margin-top: 3px;
  padding: 0 3px;
}
.cai-msg-provider {
  font-size: 10px;
  margin-top: 2px;
  padding: 0 3px;
  opacity: 0.65;
  font-style: italic;
}

/* ── Typing ─────────────────────────────────────── */
.cai-typing {
  padding: 0 14px 6px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.cai-typing-bubble {
  background: white;
  border: 1px solid var(--cai-border);
  border-radius: var(--cai-r-msg);
  border-bottom-left-radius: 4px;
  padding: 10px 14px;
  display: inline-flex;
  gap: 4px;
  align-items: center;
}
.cai-typing-bubble span {
  width: 6px;
  height: 6px;
  background: var(--cai-primary);
  border-radius: 50%;
  opacity: 0.35;
  animation: cai-typing 1.2s infinite;
}
.cai-typing-bubble span:nth-child(2) { animation-delay: 0.2s; }
.cai-typing-bubble span:nth-child(3) { animation-delay: 0.4s; }
@keyframes cai-typing {
  0%, 80%, 100% { opacity: 0.35; transform: scale(1); }
  40% { opacity: 1; transform: scale(1.15); }
}
.cai-typing-label {
  font-size: 11px;
  color: var(--cai-muted);
  font-style: italic;
  animation: cai-fade 1.5s ease-in-out infinite alternate;
}
@keyframes cai-fade { from { opacity: 0.5; } to { opacity: 1; } }

/* ── Active Cat badge ──────────────────────────── */
.cai-active-cat {
  background: rgba(26, 115, 232, 0.08);
  border-top: 1px solid var(--cai-border);
  padding: 6px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11.5px;
  color: var(--cai-primary);
  font-weight: 600;
  flex-shrink: 0;
}
#cai-remove-cat {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--cai-muted);
  padding: 0;
  font-size: 12px;
  line-height: 1;
}

/* ── Quick Replies ─────────────────────────────── */
.cai-quick-replies {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 4px 0 2px;
}
.cai-quick-btn {
  background: white;
  border: 1px solid var(--cai-border);
  border-radius: 20px;
  padding: 7px 12px;
  font-size: 12px;
  font-family: var(--cai-font);
  color: var(--cai-text);
  cursor: pointer;
  transition: all 0.2s;
  line-height: 1.3;
  font-weight: 500;
}
.cai-quick-btn:hover {
  background: var(--cai-primary);
  color: white;
  border-color: transparent;
  box-shadow: 0 3px 12px rgba(26, 115, 232, 0.25);
  transform: translateY(-1px);
}

/* ── Satisfaction / Vote ──────────────────────── */
.cai-vote-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  padding: 5px 0;
}
.cai-vote-label { font-size: 11px; color: var(--cai-muted); }
.cai-vote-btn {
  background: white;
  border: 1px solid var(--cai-border);
  border-radius: 8px;
  padding: 3px 10px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s;
}
.cai-vote-btn:hover { background: var(--cai-surface); transform: scale(1.08); }
.cai-vote-up:hover   { border-color: #22c55e; }
.cai-vote-down:hover { border-color: #ef4444; }
.cai-vote-thanks {
  font-size: 11px;
  color: var(--cai-primary);
  font-style: italic;
  animation: cai-msgIn 0.3s ease-out;
}

/* ── Expert Card ───────────────────────────────── */
.cai-card-wrap { margin: 4px 0; }

.cai-expert-card {
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  border: 1px solid #bfdbfe;
  border-radius: 12px;
  padding: 14px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  animation: cai-msgIn 0.3s ease-out;
}
.cai-expert-icon { font-size: 22px; flex-shrink: 0; line-height: 1; }
.cai-expert-body { flex: 1; }
.cai-expert-body strong { font-size: 13px; color: #1e40af; display: block; margin-bottom: 4px; }
.cai-expert-msg { font-size: 12.5px; color: #334155; margin: 0 0 10px; line-height: 1.5; }
.cai-expert-cta {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--cai-primary);
  color: white;
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s, transform 0.15s;
}
.cai-expert-cta:hover {
  background: #1557b0;
  transform: translateY(-1px);
}

/* ── Articles Card ─────────────────────────────── */
.cai-articles-card {
  background: white;
  border: 1px solid var(--cai-border);
  border-radius: 12px;
  overflow: hidden;
  animation: cai-msgIn 0.3s ease-out;
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.04);
}
.cai-articles-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--cai-primary);
  margin: 0;
  padding: 10px 14px 8px;
  border-bottom: 1px solid var(--cai-border);
  background: var(--cai-surface);
  letter-spacing: 0.02em;
}
.cai-articles-list { display: flex; flex-direction: column; }
.cai-article-item {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 9px 14px;
  border-bottom: 1px solid var(--cai-border);
  text-decoration: none;
  transition: background 0.15s;
}
.cai-article-item:last-child { border-bottom: none; }
.cai-article-item:hover { background: rgba(26, 115, 232, 0.05); }
.cai-article-thumb {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--cai-surface);
}
.cai-article-info { flex: 1; min-width: 0; }
.cai-article-title {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--cai-text);
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cai-article-excerpt {
  font-size: 11px;
  color: var(--cai-muted);
  display: block;
  margin-top: 2px;
}

/* ── Memory / System ───────────────────────────── */
.cai-memory-notice {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 12px;
  color: #166534;
  text-align: center;
  animation: cai-msgIn 0.3s ease-out;
}
.cai-sys-msg {
  text-align: center;
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 10px;
  animation: cai-msgIn 0.3s;
}
.cai-sys-warn { background: #fff7ed; color: #c2410c; border: 1px solid #fed7aa; }
.cai-sys-info { background: #eff6ff; color: #1d4ed8; border: 1px solid #bfdbfe; }

/* ── Turnstile ─────────────────────────────────── */
.cai-turnstile-wrap {
  padding: 8px 14px;
  border-top: 1px solid var(--cai-border);
  background: var(--cai-surface);
  flex-shrink: 0;
}

/* ── Input Area ────────────────────────────────── */
.cai-input-area {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 10px 14px;
  border-top: 1px solid var(--cai-border);
  background: white;
  flex-shrink: 0;
}
#cai-input {
  flex: 1;
  border: 1px solid var(--cai-border);
  border-radius: 12px;
  padding: 9px 12px;
  font-size: 13.5px;
  font-family: var(--cai-font);
  resize: none;
  outline: none;
  color: var(--cai-text);
  background: var(--cai-surface);
  max-height: 120px;
  min-height: 40px;
  line-height: 1.45;
  transition: border-color 0.2s, box-shadow 0.2s;
}
#cai-input:focus {
  border-color: var(--cai-primary);
  background: white;
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.12);
}
#cai-input::placeholder { color: var(--cai-muted); }

#cai-send-btn {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border: none;
  border-radius: 12px;
  background: var(--cai-grad);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s, opacity 0.2s;
  opacity: 0.45;
}
#cai-send-btn:not(:disabled) { opacity: 1; }
#cai-send-btn:not(:disabled):hover { transform: scale(1.05); }
#cai-send-btn:disabled { cursor: not-allowed; }

/* ── Footer ─────────────────────────────────────── */
.cai-footer {
  background: #f8fafc;
  text-align: center;
  padding: 7px 8px;
  font-size: 10.5px;
  color: var(--cai-muted);
  border-top: 1px solid var(--cai-border);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  flex-shrink: 0;
}
.cai-footer a {
  color: var(--cai-primary);
  text-decoration: none;
  font-weight: 600;
}
.cai-footer a:hover { text-decoration: underline; }

.cai-pb {
  font-size: 10px;
  font-weight: 700;
  padding: 1px 7px;
  border-radius: 6px;
}
.cai-pb-openai  { background: #d1fae5; color: #065f46; }
.cai-pb-claude  { background: #ede9fe; color: #5b21b6; }
.cai-pb-gemini  { background: #fef3c7; color: #92400e; }

/* ── Mobile tam ekran ─────────────────────────── */
@media (max-width: 768px) {
  #cai-chatbot-wrapper.cai-position-bottom-right,
  #cai-chatbot-wrapper.cai-position-bottom-left {
    right: 16px;
    left: auto;
    bottom: 16px;
  }
  #cai-chatbot-wrapper.cai-position-bottom-left {
    left: 16px;
    right: auto;
  }
  #cai-toggle-btn {
    width: 56px;
    height: 56px;
    border-radius: 14px;
  }
  #cai-chatbot-wrapper.cai-is-open {
    inset: 0;
    right: 0 !important;
    left: 0 !important;
    bottom: 0 !important;
    width: 100%;
    height: 100%;
  }
  #cai-chatbot-wrapper.cai-is-open #cai-chat-window {
    position: fixed;
    inset: 0;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    width: 100dvw;
    height: 100%;
    height: 100dvh;
    max-height: none;
    border-radius: 0;
    border: none;
    animation: cai-slideInMobile 0.28s ease-out;
  }
  #cai-chatbot-wrapper.cai-is-open #cai-toggle-btn {
    display: none;
  }
  body.cai-chat-open {
    overflow: hidden;
  }
  .cai-categories {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .cai-categories::-webkit-scrollbar {
    display: none;
  }
  .cai-cat-label {
    flex: 0 0 auto;
    white-space: nowrap;
    margin: 0;
  }
  .cai-cat-grid {
    display: flex;
    flex-wrap: nowrap;
    gap: 6px;
    flex: 0 0 auto;
    min-width: min-content;
  }
  .cai-cat-btn {
    flex: 0 0 auto;
    white-space: nowrap;
  }
  .cai-quick-replies { gap: 5px; }
  .cai-header { padding-top: max(14px, env(safe-area-inset-top)); }
  .cai-input-area {
    padding-bottom: max(10px, env(safe-area-inset-bottom));
  }
  .cai-footer {
    padding-bottom: max(6px, env(safe-area-inset-bottom));
  }
}
@keyframes cai-slideInMobile {
  from { opacity: 0; transform: translateY(100%); }
  to   { opacity: 1; transform: translateY(0); }
}