/* ─── Kimi AI Explain Panel ─── */

/* Floating explain button */
.kimi-explain-btn {
  position: fixed;
  z-index: 300;
  padding: 6px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  background: var(--brand-primary, #2563eb);
  border: none;
  border-radius: 20px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.18);
  cursor: pointer;
  opacity: 0;
  transform: translateY(8px);
  animation: kimi-btn-in 0.2s ease forwards;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  white-space: nowrap;
  pointer-events: auto;
}
.kimi-explain-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.22);
}
@keyframes kimi-btn-in {
  to { opacity: 1; transform: translateY(0); }
}

/* ─── Panel ─── */
.kimi-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 440px;
  max-width: 90vw;
  height: 100vh;
  z-index: 280;
  display: flex;
  flex-direction: column;
  background: rgba(250, 250, 252, 0.92);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-left: 1px solid rgba(0,0,0,0.06);
  box-shadow: -8px 0 40px rgba(0,0,0,0.08);
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  font-family: var(--font-body, -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif);
}
.kimi-panel.kimi-panel-open {
  transform: translateX(0);
}

/* Dark theme */
.kimi-panel[data-kimi-theme="dark"] {
  background: rgba(28, 28, 34, 0.92);
  border-left-color: rgba(255,255,255,0.06);
  box-shadow: -8px 0 40px rgba(0,0,0,0.25);
}

/* ─── Header ─── */
.kimi-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  flex-shrink: 0;
}
.kimi-panel[data-kimi-theme="dark"] .kimi-panel-header {
  border-bottom-color: rgba(255,255,255,0.06);
}
.kimi-panel-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary, #1a1a2e);
}
.kimi-panel[data-kimi-theme="dark"] .kimi-panel-title {
  color: #e8e8f0;
}
.kimi-panel-title svg {
  color: var(--brand-primary, #2563eb);
  flex-shrink: 0;
}
.kimi-panel-close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  border-radius: 6px;
  color: var(--text-secondary, #6b7280);
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.15s, color 0.15s;
}
.kimi-panel-close:hover {
  background: rgba(0,0,0,0.06);
  color: var(--text-primary, #1a1a2e);
}
.kimi-panel[data-kimi-theme="dark"] .kimi-panel-close:hover {
  background: rgba(255,255,255,0.08);
  color: #e8e8f0;
}

/* ─── Body ─── */
.kimi-panel-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.kimi-panel-body::-webkit-scrollbar { width: 5px; }
.kimi-panel-body::-webkit-scrollbar-track { background: transparent; }
.kimi-panel-body::-webkit-scrollbar-thumb {
  background: rgba(0,0,0,0.15);
  border-radius: 3px;
}
.kimi-panel[data-kimi-theme="dark"] .kimi-panel-body::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.12);
}

/* Status */
.kimi-status {
  font-size: 0.8rem;
  color: var(--text-tertiary, #9ca3af);
  text-align: center;
  padding: 4px 0;
  flex-shrink: 0;
}

/* ─── Think section ─── */
.kimi-think-wrap {
  border-radius: 10px;
  overflow: hidden;
  background: rgba(0,0,0,0.03);
  border: 1px solid rgba(0,0,0,0.04);
}
.kimi-panel[data-kimi-theme="dark"] .kimi-think-wrap {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.05);
}
.kimi-think-toggle {
  padding: 8px 12px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary, #6b7280);
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: background 0.15s;
}
.kimi-think-toggle:hover {
  background: rgba(0,0,0,0.03);
}
.kimi-panel[data-kimi-theme="dark"] .kimi-think-toggle:hover {
  background: rgba(255,255,255,0.03);
}
.kimi-think-arrow {
  font-size: 0.7rem;
  transition: transform 0.2s;
}
.kimi-think-content {
  padding: 8px 12px;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--text-tertiary, #9ca3af);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 300px;
  overflow-y: auto;
}

/* ─── Answer ─── */
.kimi-answer {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-primary, #1a1a2e);
}
.kimi-panel[data-kimi-theme="dark"] .kimi-answer {
  color: #e0e0ee;
}
.kimi-answer p {
  margin: 0 0 10px;
}
.kimi-answer p:last-child {
  margin-bottom: 0;
}
.kimi-answer h1, .kimi-answer h2, .kimi-answer h3,
.kimi-answer h4, .kimi-answer h5, .kimi-answer h6 {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 14px 0 8px;
  color: var(--text-primary, #1a1a2e);
}
.kimi-panel[data-kimi-theme="dark"] .kimi-answer h1,
.kimi-panel[data-kimi-theme="dark"] .kimi-answer h2,
.kimi-panel[data-kimi-theme="dark"] .kimi-answer h3 {
  color: #e8e8f0;
}
.kimi-answer code {
  font-family: var(--font-mono, 'SF Mono', 'Fira Code', 'Cascadia Code', monospace);
  font-size: 0.84em;
  padding: 1px 5px;
  background: rgba(0,0,0,0.05);
  border-radius: 4px;
  color: var(--brand-primary, #2563eb);
}
.kimi-panel[data-kimi-theme="dark"] .kimi-answer code {
  background: rgba(255,255,255,0.07);
}
.kimi-answer pre {
  background: #1e1e2e;
  border-radius: 10px;
  padding: 14px 16px;
  overflow-x: auto;
  margin: 10px 0;
}
.kimi-answer pre code {
  background: none;
  padding: 0;
  color: #e4e4e7;
  font-size: 0.82rem;
  line-height: 1.6;
}
.kimi-answer strong {
  font-weight: 700;
  color: var(--text-primary, #1a1a2e);
}
.kimi-panel[data-kimi-theme="dark"] .kimi-answer strong {
  color: #e8e8f0;
}
.kimi-answer em {
  font-style: italic;
}

/* User bubble */
.kimi-user-bubble {
  align-self: flex-end;
  background: var(--brand-primary, #2563eb);
  color: #fff;
  padding: 8px 14px;
  border-radius: 14px 14px 4px 14px;
  font-size: 0.85rem;
  line-height: 1.5;
  max-width: 90%;
  margin: 4px 0 12px auto;
  word-break: break-word;
}

/* ─── Footer ─── */
.kimi-panel-footer {
  display: flex;
  gap: 8px;
  padding: 12px 18px;
  border-top: 1px solid rgba(0,0,0,0.06);
  flex-shrink: 0;
  background: inherit;
}
.kimi-panel[data-kimi-theme="dark"] .kimi-panel-footer {
  border-top-color: rgba(255,255,255,0.06);
}
.kimi-followup-input {
  flex: 1;
  padding: 8px 14px;
  font-size: 0.85rem;
  border: 1px solid rgba(0,0,0,0.1);
  border-radius: 10px;
  background: rgba(0,0,0,0.02);
  color: var(--text-primary, #1a1a2e);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.kimi-followup-input:focus {
  border-color: var(--brand-primary, #2563eb);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}
.kimi-panel[data-kimi-theme="dark"] .kimi-followup-input {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.1);
  color: #e0e0ee;
}
.kimi-panel[data-kimi-theme="dark"] .kimi-followup-input:focus {
  border-color: var(--brand-primary, #2563eb);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}
.kimi-followup-btn,
.kimi-cancel-btn {
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.1s, opacity 0.15s;
  white-space: nowrap;
}
.kimi-followup-btn {
  background: var(--brand-primary, #2563eb);
  color: #fff;
}
.kimi-followup-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}
.kimi-cancel-btn {
  background: rgba(0,0,0,0.06);
  color: var(--text-secondary, #6b7280);
}
.kimi-panel[data-kimi-theme="dark"] .kimi-cancel-btn {
  background: rgba(255,255,255,0.08);
  color: #a0a0b0;
}
.kimi-cancel-btn:hover {
  background: rgba(0,0,0,0.1);
}

/* ─── Mobile ─── */
@media (max-width: 640px) {
  .kimi-panel {
    width: 100vw;
    max-width: 100vw;
  }
  .kimi-explain-btn {
    font-size: 0.78rem;
    padding: 5px 10px;
  }
}