/* =========================================================
   Sidebar Styles - ChatGPT Style with Design Tokens
   ========================================================= */

/* ---------- Sidebar Container ---------- */
.app-sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 260px;
  background: #171717; /* ChatGPT dark background */
  color: #ECECEC;
  display: flex;
  flex-direction: column;
  z-index: 1000;
  transition: all var(--dur-300) var(--ease);
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

/* 사이드바 축소 상태 */
.app-sidebar.collapsed {
  width: 60px;
}

/* 축소 시 텍스트 숨기기 */
.app-sidebar.collapsed .logo-text,
.app-sidebar.collapsed .nav-section-title,
.app-sidebar.collapsed .chat-item-content,
.app-sidebar.collapsed .analysis-item-content,
.app-sidebar.collapsed .user-details,
.app-sidebar.collapsed .new-chat-btn span,
.app-sidebar.collapsed .nav-link span,
.app-sidebar.collapsed .badge-soon,
.app-sidebar.collapsed .guest-info {
  display: none;
}

/* 축소 시 상단 행 중앙 정렬 */
.app-sidebar.collapsed .sidebar-top-row {
  justify-content: center;
  margin-bottom: 8px;
}

.app-sidebar.collapsed .sidebar-logo {
  display: none;
}

/* 축소 시 헤더 패딩 조정 */
.app-sidebar.collapsed .sidebar-header {
  padding: 16px 8px;
}

/* 축소 시 네비게이션 패딩 조정 */
.app-sidebar.collapsed .sidebar-nav {
  padding: 8px;
}

/* 축소 시 아이템 중앙 정렬 및 스타일 조정 */
.app-sidebar.collapsed .new-chat-btn,
.app-sidebar.collapsed .nav-link,
.app-sidebar.collapsed .chat-item,
.app-sidebar.collapsed .analysis-item {
  justify-content: center;
  padding: 12px;
  margin-bottom: 8px;
  border-radius: 8px;
}

/* 축소 시 새 채팅 버튼 스타일 */
.app-sidebar.collapsed .new-chat-btn {
  width: 44px;
  height: 44px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 축소 시 네비게이션 링크 스타일 */
.app-sidebar.collapsed .nav-link {
  width: 44px;
  height: 44px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 4px;
}

/* 축소 시 채팅/분석 아이템 숨기기 (아이콘만 유지) */
.app-sidebar.collapsed .chat-list,
.app-sidebar.collapsed .analysis-list {
  display: none;
}

/* 축소 시 삭제 버튼 숨기기 */
.app-sidebar.collapsed .chat-item-actions {
  display: none;
}

/* 축소 시 사이드바 푸터 조정 */
.app-sidebar.collapsed .sidebar-footer {
  padding: 16px 8px;
}

/* 축소 시 사용자 메뉴 아바타만 표시 */
.app-sidebar.collapsed .user-menu {
  justify-content: center;
  padding: 0;
}

.app-sidebar.collapsed .user-info {
  width: 44px;
  height: 44px;
  justify-content: center;
}

.app-sidebar.collapsed .user-actions {
  display: none;
}

/* ---------- 사이드바 토글 버튼 ---------- */
.sidebar-toggle-btn {
  width: 32px !important;
  height: 32px !important;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.2) !important;
  border: 1px solid rgba(255, 255, 255, 0.4) !important;
  color: var(--white) !important;
  display: flex !important;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--dur-200);
  flex-shrink: 0;
  margin-left: 12px;
  position: relative;
  z-index: 10 !important;
  opacity: 1 !important;
  visibility: visible !important;
}

.sidebar-toggle-btn:hover {
  background: var(--mint);
  color: var(--ever);
  border-color: var(--mint);
  transform: scale(1.05);
  box-shadow: 0 2px 8px rgba(142, 234, 210, 0.3);
}

/* 토글 아이콘 상태 */
.sidebar-toggle-btn .toggle-icon-expand {
  display: none;
}

.app-sidebar.collapsed .sidebar-toggle-btn .toggle-icon-collapse {
  display: none;
}

.app-sidebar.collapsed .sidebar-toggle-btn .toggle-icon-expand {
  display: block;
}

/* ---------- Sidebar Header ---------- */
.sidebar-header {
  padding: 12px;
  border-bottom: none;
  flex-shrink: 0;
}

/* 상단 행 (로고 + 토글 버튼) */
.sidebar-top-row {
  display: flex !important;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  width: 100%;
}

.sidebar-logo {
  flex: 0 1 auto;
  max-width: calc(100% - 40px);
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--white);
  text-decoration: none;
  transition: opacity var(--dur-150);
  min-width: 0;
}

.logo-link:hover {
  opacity: 0.9;
}

.logo-icon {
  width: 28px;
  height: 28px;
  color: var(--mint); /* #8EEAD2 - 민트 액센트 */
}

.logo-text {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* New Chat/Analysis Button */
.new-chat-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  color: #ECECEC;
  text-decoration: none;
  font-weight: 400;
  font-size: 14px;
  transition: all var(--dur-200);
  margin-bottom: 8px;
}

.new-chat-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* Search Button */
.search-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: #ECECEC;
  text-decoration: none;
  font-weight: 400;
  font-size: 14px;
  transition: all var(--dur-200);
  cursor: pointer;
  text-align: left;
}

.search-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* ---------- Sidebar Navigation ---------- */
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
}

.nav-section {
  margin-bottom: 24px;
}

.nav-section-title {
  font-size: 12px;
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
  color: rgba(255, 255, 255, 0.5);
  padding: 12px 12px 8px 12px;
  margin-bottom: 4px;
}

/* Chat & Analysis Lists */
.chat-list,
.analysis-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.chat-item,
.analysis-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  color: #ECECEC;
  text-decoration: none;
  transition: all var(--dur-150);
  position: relative;
}

.chat-item:hover,
.analysis-item:hover {
  background: #2A2A2A;
}

.chat-item.active,
.analysis-item.active {
  background: #2A2A2A;
  color: #ECECEC;
}

.chat-item-icon,
.analysis-item-icon {
  display: none; /* Hide icons for cleaner ChatGPT look */
}

.chat-item-content,
.analysis-item-content {
  flex: 1;
  min-width: 0;
}

.chat-item-title,
.analysis-item-title {
  font-size: 14px;
  font-weight: 400;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-item-meta,
.analysis-item-meta {
  display: none; /* Hide meta for cleaner ChatGPT look */
}

.chat-item-actions {
  opacity: 0;
  transition: opacity var(--dur-150);
}

.chat-item:hover .chat-item-actions {
  opacity: 1;
}

.delete-btn {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.6);
  padding: 4px;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--dur-150);
}

.delete-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--orange); /* Warning color */
}

/* Analysis Status Badge */
.analysis-status {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
}

.status-pending {
  background: rgba(255, 255, 255, 0.2);
}

.status-processing {
  background: rgba(242, 252, 102, 0.3); /* lemon */
  color: var(--note-foreground);
}

.status-completed {
  background: rgba(167, 204, 66, 0.3); /* lime */
  color: var(--success-foreground);
}

.status-failed {
  background: rgba(242, 131, 59, 0.3); /* orange */
  color: var(--warning-foreground);
}

/* ---------- Main Menu ---------- */
.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: var(--radius-sm);
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-weight: 500;
  transition: all var(--dur-150);
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  transform: translateX(2px);
}

.nav-link.active {
  background: rgba(142, 234, 210, 0.15);
  color: var(--mint);
  font-weight: 600;
}

.badge-soon {
  margin-left: auto;
  padding: 2px 6px;
  background: var(--orange);
  color: var(--white);
  border-radius: 4px;
  font-size: 10px;
  font-weight: 700;
}

/* ---------- Sidebar Footer ---------- */
.sidebar-footer {
  padding: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background: transparent;
  flex-shrink: 0;
}

/* Upgrade Plan Section */
.upgrade-section {
  padding: 12px;
  margin-bottom: 12px;
  background: #2A2A2A;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--dur-200);
  cursor: pointer;
}

.upgrade-section:hover {
  background: #333;
}

.upgrade-link {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #ECECEC;
  text-decoration: none;
}

.upgrade-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: #ECECEC;
}

.upgrade-content {
  flex: 1;
  min-width: 0;
}

.upgrade-title {
  font-size: 14px;
  font-weight: 500;
  color: #ECECEC;
  margin-bottom: 2px;
}

.upgrade-subtitle {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-menu {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--mint);
  color: var(--ever);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
}

.user-details {
  flex: 1;
  min-width: 0;
}

.user-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-email {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.6);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-actions {
  display: flex;
  gap: 4px;
}

.user-action-btn {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.6);
  padding: 6px;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--dur-150);
}

.user-action-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
}

/* ---------- Icon Sizes ---------- */
.icon-xs {
  width: 14px;
  height: 14px;
}

.icon-sm {
  width: 18px;
  height: 18px;
}

/* ---------- Mobile Overlay ---------- */
.sidebar-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--dur-300);
}

.sidebar-overlay.open {
  opacity: 1;
  visibility: visible;
}

/* ---------- Mobile Responsive ---------- */
@media (max-width: 768px) {
  .app-sidebar {
    transform: translateX(-100%);
  }
  
  .app-sidebar.open {
    transform: translateX(0);
  }
  
  body.sidebar-open {
    overflow: hidden;
  }
}

/* ---------- Scrollbar Styling ---------- */
.sidebar-nav::-webkit-scrollbar {
  width: 4px;
}

.sidebar-nav::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
}

.sidebar-nav::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
}

.sidebar-nav::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* ---------- Legacy Support (for existing views) ---------- */
/* 기존 사이드바 클래스와의 호환성 유지 */
.sidebar {
  /* 기존 스타일 유지 */
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 240px;
  z-index: 100;
  transition: width 0.3s ease;
  background: white;
  border-right: 1px solid #e2e8f0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar.collapsed {
  width: 60px;
}

.sidebar.collapsed .nav-text,
.sidebar.collapsed .collapse-btn,
.sidebar.collapsed .sidebar-top-section,
.sidebar.collapsed .sidebar-content,
.sidebar.collapsed .sidebar-footer {
  display: none;
}

/* ---------- Search Modal ---------- */
.search-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 100px;
  animation: fadeIn 0.2s ease;
}

.search-modal.active {
  display: flex;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.search-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.search-modal-content {
  background: #2A2A2A;
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  width: 90%;
  max-width: 600px;
  max-height: 70vh;
  overflow: hidden;
  position: relative;
  z-index: 2001;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.search-modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-input-icon {
  color: rgba(255, 255, 255, 0.5);
  width: 20px;
  height: 20px;
}

.search-modal-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #ECECEC;
  font-size: 16px;
  padding: 8px 0;
}

.search-modal-input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.search-modal-body {
  max-height: calc(70vh - 80px);
  overflow-y: auto;
  padding: 8px;
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: 8px;
  color: #ECECEC;
  text-decoration: none;
  transition: all var(--dur-150);
  cursor: pointer;
}

.search-result-item:hover {
  background: #333;
}

.search-result-content {
  flex: 1;
  min-width: 0;
}

.search-result-title {
  font-size: 14px;
  font-weight: 500;
  color: #ECECEC;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-bottom: 4px;
}

.search-result-meta {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
}

.search-empty-state {
  padding: 40px 20px;
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
}

.search-empty-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  color: rgba(255, 255, 255, 0.3);
}

.search-empty-text {
  font-size: 14px;
}