/**
 * Стили контекстно-изолированного проектного AI-чата (FEAT-023, BUG-025).
 */
.project-chat-container {
  background: var(--bg-card, #111827);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  height: 640px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}
.project-chat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(17, 24, 39, 0.85);
  backdrop-filter: blur(8px);
}
.project-chat-title-group {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
}
.project-chat-title {
  display: flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 600; color: #fff;
}
.project-chat-badges {
  display: flex; gap: 8px; align-items: center;
}
.pchat-badge-sandbox {
  background: rgba(16, 185, 129, 0.15); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.3);
  font-size: 11px; padding: 3px 8px; border-radius: 6px; font-weight: 500;
}
.pchat-badge-session {
  background: rgba(59, 130, 246, 0.15); color: #93c5fd; border: 1px solid rgba(59, 130, 246, 0.3);
  font-size: 11px; padding: 3px 8px; border-radius: 6px;
}
.pchat-quick-prompts {
  display: flex;
  gap: 8px;
  padding: 10px 20px;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  overflow-x: auto;
}
.pchat-chip {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #cbd5e1;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s ease;
}
.pchat-chip:hover {
  background: rgba(59, 130, 246, 0.2);
  border-color: #3b82f6;
  color: #fff;
}
.project-chat-stream {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.pchat-empty-state {
  margin: auto;
  text-align: center;
  max-width: 440px;
  color: var(--text-secondary, #94a3b8);
}
.pchat-message {
  display: flex;
  flex-direction: column;
  max-width: 88%;
  gap: 6px;
  animation: fadeIn 0.2s ease-in-out;
}
.pchat-msg-user { align-self: flex-end; }
.pchat-msg-user .pchat-bubble {
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
  color: #fff; border-radius: 14px 14px 2px 14px; padding: 12px 16px; font-size: 14px;
}
.pchat-msg-assistant { align-self: flex-start; width: 100%; }
.pchat-msg-assistant .pchat-bubble {
  background: rgba(255, 255, 255, 0.04); border: 1px solid rgba(255, 255, 255, 0.08);
  color: #e2e8f0; border-radius: 14px 14px 14px 2px; padding: 14px 18px; font-size: 14px; line-height: 1.6;
}
.pchat-cot-accordion {
  background: rgba(0, 0, 0, 0.25); border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 8px; margin-bottom: 10px; overflow: hidden;
}
.pchat-cot-summary {
  padding: 8px 12px; cursor: pointer; font-size: 12px; color: #94a3b8; font-weight: 500; user-select: none;
}
.pchat-cot-body {
  padding: 10px 12px; border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 12px; color: #cbd5e1; font-family: monospace; white-space: pre-wrap;
}
.pchat-artifact-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 8px 14px;
  border-radius: 8px;
  margin-top: 8px;
}
.pchat-confirm-box {
  background: rgba(220, 38, 38, 0.15);
  border: 1px solid rgba(220, 38, 38, 0.4);
  padding: 12px 18px;
  margin: 10px 20px;
  border-radius: 8px;
}
.project-chat-input-form {
  padding: 14px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(17, 24, 39, 0.9);
}
.pchat-input-wrap {
  display: flex;
  gap: 10px;
  align-items: flex-end;
}
.project-chat-textarea {
  flex: 1;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  color: #fff;
  padding: 10px 14px;
  font-size: 14px;
  resize: none;
  min-height: 48px;
}
.project-chat-textarea:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}
.pchat-send-btn {
  padding: 10px 18px;
  font-size: 14px;
  height: 48px;
}

/* --- Стили таба и быстрой кнопки перехода BUG-025 --- */
.tab-btn-agent-chat {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.12), rgba(6, 95, 70, 0.2)) !important;
  border: 1px solid rgba(16, 185, 129, 0.35) !important;
  color: #6ee7b7 !important;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  transition: all 0.2s ease;
}
.tab-btn-agent-chat:hover {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.22), rgba(6, 95, 70, 0.35)) !important;
  border-color: rgba(16, 185, 129, 0.6) !important;
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.25);
  color: #fff !important;
}
.tab-btn-agent-chat.active {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.3), rgba(5, 150, 105, 0.45)) !important;
  border-color: #10b981 !important;
  color: #ffffff !important;
  box-shadow: 0 0 16px rgba(16, 185, 129, 0.4);
}
.pchat-tab-tag {
  font-size: 10px;
  text-transform: uppercase;
  background: rgba(16, 185, 129, 0.25);
  color: #a7f3d0;
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid rgba(16, 185, 129, 0.4);
}
.tab-badge-emerald {
  background: rgba(16, 185, 129, 0.25);
  color: #6ee7b7;
  padding: 2px 7px;
  border-radius: 10px;
  font-size: 11px;
}
.btn-quick-chat, .btn-project-chat-quick {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #059669, #0d9488);
  color: #ffffff !important;
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(13, 148, 136, 0.3);
}
.btn-quick-chat:hover, .btn-project-chat-quick:hover {
  background: linear-gradient(135deg, #10b981, #14b8a6);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.45);
}
.chat-quick-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #34d399;
  box-shadow: 0 0 8px #34d399;
  animation: pchatQuickPulse 2s infinite ease-in-out;
}
@keyframes pchatQuickPulse {
  0%, 100% { transform: scale(0.95); opacity: 0.7; }
  50% { transform: scale(1.3); opacity: 1; }
}