/* ============================================================
   CHAT TUTOR
   ============================================================ */
.tutor-body {
  display: flex;
  flex: 1;
  overflow: hidden;
  height: calc(100vh - 50px);
  height: calc(100dvh - 50px);
}

.tutor-main {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
  min-width: 0;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 14px 13px 8px;
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.message {
  max-width: 88%;
  display: flex;
  flex-direction: column;
  gap: 4px;
  animation: fadeUp 0.25s ease;
}

.message--user {
  align-self: flex-end;
}

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

.bubble {
  padding: 9px 13px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.5;
}

.message--user .bubble {
  background: linear-gradient(135deg, var(--gold), #d4922a);
  color: #fff;
  border-radius: 16px 16px 4px 16px;
}

.message--assistant .bubble {
  background: var(--card);
  border: 1px solid var(--bdr);
  border-radius: 16px 16px 16px 4px;
}

.typing-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--muted);
  animation: typingDot 1.2s infinite;
}

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

@keyframes typingDot {
  0%, 80%, 100% { transform: scale(0.6); }
  40% { transform: scale(1); }
}

.chat-suggestions {
  padding: 4px 13px 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip {
  background: #fff;
  border: 1px solid var(--bdr);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
  color: var(--gold);
  padding: 5px 11px;
  border-radius: 20px;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  min-height: var(--touch-min);
  display: flex;
  align-items: center;
}

.chip:hover {
  background: var(--gold);
  color: #fff;
}

.chat-input-area {
  display: flex;
  gap: 8px;
  padding: 10px 13px 14px;
  border-top: 1px solid var(--bdr);
  align-items: flex-end;
}

.chat-input {
  flex: 1;
  background: var(--card);
  border: 1px solid var(--bdr);
  border-radius: 12px;
  color: var(--txt);
  padding: 9px 13px;
  font-size: 14px;
  resize: none;
  max-height: 120px;
  font-family: inherit;
  line-height: 1.4;
}

.chat-input:focus {
  outline: none;
  border-color: var(--gold);
}

.send-btn {
  background: var(--gold);
  color: #fff;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 18px;
  cursor: pointer;
  flex-shrink: 0;
  transition: opacity 0.2s;
  min-width: var(--touch-min);
  min-height: var(--touch-min);
  display: flex;
  align-items: center;
  justify-content: center;
}

.send-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Tutor sidebar (desktop) */
.tutor-sidebar {
  width: 260px;
  flex-shrink: 0;
  overflow-y: auto;
  border-left: 1px solid var(--bdr);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: #faf7f0;
}

.tutor-section-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.tutor-box {
  background: var(--card);
  border: 1px solid var(--bdr);
  border-radius: 10px;
  padding: 10px 12px;
}

.tutor-level {
  font-size: 16px;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 5px;
}

.tutor-progress-wrap {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  height: 6px;
  margin-bottom: 5px;
  overflow: hidden;
}

.tutor-progress-bar {
  height: 100%;
  background: var(--gold);
  border-radius: 4px;
  transition: width 0.6s ease;
}

.tutor-stats {
  font-size: 11px;
  color: var(--muted);
}

.tutor-fb-empty, .tutor-diary-empty {
  font-size: 12px;
  color: var(--muted);
  font-style: italic;
}

.tutor-fb-item {
  font-size: 12px;
  line-height: 1.5;
  padding: 5px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.tutor-fb-item:last-child { border: none; }
.tutor-fb-ok { color: #34d399; }
.tutor-fb-warn { color: #f97316; }
.tutor-fb-tip { color: #60a5fa; }

.tutor-goals-list {
  list-style: none;
  margin: 0 0 6px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.tutor-goal-item {
  font-size: 12px;
  display: flex;
  gap: 6px;
  align-items: flex-start;
}

.tutor-goal-item input[type=checkbox] {
  accent-color: var(--gold);
  flex-shrink: 0;
  margin-top: 2px;
}

.tutor-add-btn {
  font-size: 11px;
  color: var(--gold);
  background: none;
  border: 1px dashed rgba(240, 165, 0, 0.4);
  border-radius: 6px;
  padding: 4px 8px;
  cursor: pointer;
  width: 100%;
}

.tutor-add-btn:hover {
  background: rgba(240, 165, 0, 0.1);
}

.tutor-diary-entry {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.6;
}

.tutor-mode-toggle {
  display: flex;
  gap: 4px;
  margin-left: auto;
}

.tutor-mode-btn {
  background: none;
  border: 1px solid var(--bdr);
  color: var(--muted);
  padding: 3px 8px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  min-height: var(--touch-min);
  min-width: var(--touch-min);
  display: flex;
  align-items: center;
  justify-content: center;
}

.tutor-mode-btn.active {
  border-color: var(--gold);
  color: var(--gold);
}

/* API Key Banner */
.api-banner {
  background: rgba(196, 125, 26, 0.06);
  border: 1px solid rgba(196, 125, 26, 0.25);
  border-radius: 12px;
  padding: 16px 18px;
  margin: 12px 0;
  display: none;
}

.api-banner.show {
  display: block;
}

.api-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}

.api-desc {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 10px;
  line-height: 1.5;
}

.api-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.api-input {
  flex: 1;
  background: #fff;
  border: 1px solid var(--bdr);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13px;
  color: var(--txt);
  font-family: inherit;
}

.api-input:focus {
  outline: none;
  border-color: var(--gold);
}

.api-save-btn {
  background: var(--gold);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  min-height: var(--touch-min);
}

.api-saved {
  font-size: 11px;
  color: #4caf50;
  margin-top: 6px;
  display: none;
}

.api-saved.show {
  display: block;
}