/* ============================================================
   v6.0.0 — 主应用样式（玻璃态深色主题）
   仪表盘 / 系统 / 分析 / 事件 / 设置 页面
   ============================================================ */

/* ===================== 基础布局 ===================== */
body {
  background-color: #0f172a;
  color: #e2e8f0;
  font-family: 'Inter', system-ui, sans-serif;
}

/* ===================== 侧边栏 ===================== */
.sidebar::-webkit-scrollbar { display: none; }
.sidebar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* ===================== 图表容器 ===================== */
.chart-container {
  position: relative;
  height: 100%;
  width: 100%;
}

/* ===================== 数字增长动画 ===================== */
@keyframes countUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-count {
  animation: countUp 0.5s ease-out forwards;
}

/* ===================== 工具类 ===================== */
.compact-gap { gap: 0.75rem; }
.compact-card { padding: 1.25rem; }

/* ===================== 新建笔记按钮 ===================== */
.new-note-btn {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  border: none;
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
  width: 135px;
  height: 40px;
}
.new-note-btn:hover {
  background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
  box-shadow: 0 6px 16px rgba(239, 68, 68, 0.4);
  transform: translateY(-1px);
}

/* ===================== 导航选项卡 ===================== */
.nav-tab {
  transition: all 0.2s ease;
  font-size: 1rem;
}
.nav-tab:hover {
  transform: scale(1.05);
  font-weight: 600;
}

/* ===================== 对话框 ===================== */
.dialog-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  z-index: 1000;
  display: none;
  justify-content: center;
  align-items: center;
}
.dialog-content {
  background-color: #1e293b;
  border-radius: 12px;
  width: 90%;
  max-width: 1200px;
  max-height: min(56vw, 85vh);
  overflow-y: auto;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
  border: 1px solid #334155;
}
.dialog-content.small { max-width: 600px; max-height: min(56vw, 85vh); }
.dialog-content.medium { max-width: 900px; max-height: min(56vw, 85vh); }

/* 分类相关对话框：扁平宽屏比例 */
#new-category-dialog .dialog-content,
#edit-category-dialog .dialog-content {
  max-width: 520px;
  max-height: min(50vw, 80vh);
}
#category-dialog .dialog-content {
  max-width: 900px;
  max-height: min(56vw, 80vh);
}

/* ===================== 新建笔记下拉菜单 ===================== */
.new-note-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 8px;
  background-color: #1e293b;
  border: 1px solid #334155;
  border-radius: 8px;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
  z-index: 50;
  display: none;
  min-width: 180px;
}
.new-note-dropdown.show { display: block; }

/* ===================== 笔记编辑器 ===================== */
.note-editor { max-height: 80vh; overflow-y: auto; }
.markdown-preview {
  background-color: #0f172a;
  border-radius: 8px;
  padding: 16px;
  min-height: 200px;
  border: 1px solid #334155;
}

/* ===================== 页面切换动画 ===================== */
.page-content {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.page-content.active {
  opacity: 1;
  transform: translateY(0);
}

/* ===================== 文字内容区域 ===================== */
.text-content { line-height: 1.6; }
.text-content p { margin-bottom: 1rem; }
.text-content ul {
  list-style-type: disc;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

/* ===================== 系统页面图标 ===================== */
.system-icon {
  font-size: 4rem;
  color: #6366f1;
  animation: spin 20s linear infinite;
}
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ===================== 实时日志 ===================== */
.log-entry {
  padding: 0.5rem 0;
  border-bottom: 1px solid #334155;
  font-family: monospace;
  font-size: 0.75rem;
}
.log-entry:last-child { border-bottom: none; }
.log-time {
  color: #64748b;
  margin-right: 0.5rem;
}
.log-info { color: #60a5fa; }
.log-success { color: #34d399; }
.log-warning { color: #fbbf24; }
.log-error { color: #f87171; }

/* ===================== 侧边栏激活项 ===================== */
.sidebar-item-active {
  background-color: #4f46e5 !important;
  color: #ffffff !important;
  border-left-width: 4px;
  border-left-color: #818cf8;
  border-left-style: solid;
}

/* ===================== 卡片过渡 ===================== */
.card-transition {
  transition: all 0.3s ease-in-out;
}
.card-transition:hover {
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  transform: translateY(-4px);
}

/* ===================== 细滚动条 ===================== */
.scrollbar-thin {
  scrollbar-width: thin;
  scrollbar-color: #334155 transparent;
}
.scrollbar-thin::-webkit-scrollbar { width: 4px; }
.scrollbar-thin::-webkit-scrollbar-track { background: transparent; }
.scrollbar-thin::-webkit-scrollbar-thumb {
  background-color: #334155;
  border-radius: 2px;
}

/* ===================== header 与左侧 Logo 区域高度对齐 ===================== */
/* 左侧 Logo 区域高度 = py-3 (12px*2) + h-10 (40px) = 64px */
/* 确保右侧 header 底部 border 线与左侧 Logo 区域底部 border 线对齐 */
.main-header {
  height: 64px;
}

/* ============================================================
   版本历史与恢复对话框样式
   ============================================================ */

/* ===================== 恢复对话框 ===================== */
.modal-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
}

.modal-content {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 12px;
  max-width: 680px;
  width: 92%;
  max-height: 85vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 50px rgba(0,0,0,0.5);
}

.restore-dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid #334155;
}
.restore-dialog-header h3 {
  margin: 0;
  font-size: 1rem;
  color: #e2e8f0;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: #94a3b8;
  font-size: 1.25rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
}
.modal-close-btn:hover {
  background: rgba(255,255,255,0.05);
  color: #e2e8f0;
}

.restore-dialog-body {
  padding: 1rem 1.25rem;
  overflow-y: auto;
  flex: 1;
}

.restore-info {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
}
.restore-info-item {
  display: flex;
  gap: 0.5rem;
}
.restore-label {
  color: #94a3b8;
}
.restore-time {
  color: #cbd5e1;
}

.restore-stats {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.8rem;
}
.stat-add { color: #4ade80; }
.stat-del { color: #f87171; }
.stat-equal { color: #94a3b8; }

.restore-diff {
  background: #0f172a;
  border-radius: 8px;
  padding: 0.75rem;
  max-height: 300px;
  overflow: auto;
  border: 1px solid #1e293b;
}

.diff-pre {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-all;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

.diff-insert {
  background: rgba(74, 222, 128, 0.15);
  color: #4ade80;
  border-radius: 2px;
  padding: 0 1px;
}
.diff-delete {
  background: rgba(248, 113, 113, 0.15);
  color: #f87171;
  border-radius: 2px;
  padding: 0 1px;
  text-decoration: line-through;
}
.diff-equal {
  color: #94a3b8;
}

.restore-dialog-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-top: 1px solid #334155;
}

/* ===================== 按钮样式 ===================== */
.btn {
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.15s ease;
}
.btn-primary {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: #fff;
  box-shadow: 0 2px 8px rgba(239,68,68,0.25);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #dc2626, #b91c1c);
}
.btn-secondary {
  background: #334155;
  color: #cbd5e1;
}
.btn-secondary:hover {
  background: #475569;
}
.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
}

/* ===================== 版本历史面板 ===================== */
.version-history-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 380px;
  height: 100vh;
  background: #1e293b;
  border-left: 1px solid #334155;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  box-shadow: -4px 0 24px rgba(0,0,0,0.3);
  animation: slideInRight 0.2s ease-out;
}

@keyframes slideInRight {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

.vh-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid #334155;
}
.vh-header h3 {
  margin: 0;
  font-size: 0.95rem;
  color: #e2e8f0;
}
.vh-close-btn {
  background: transparent;
  border: none;
  color: #94a3b8;
  font-size: 1.1rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
}
.vh-close-btn:hover {
  background: rgba(255,255,255,0.05);
  color: #e2e8f0;
}

.vh-body {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
}

.vh-loading, .vh-error, .vh-empty {
  text-align: center;
  padding: 1.5rem;
  color: #94a3b8;
  font-size: 0.85rem;
}
.vh-empty-hint {
  font-size: 0.75rem;
  color: #64748b;
  margin-top: 0.5rem;
}

.vh-version-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.vh-version-item {
  background: #0f172a;
  border: 1px solid #1e293b;
  border-radius: 8px;
  padding: 0.6rem 0.75rem;
  cursor: default;
  transition: all 0.15s ease;
}
.vh-version-item:hover {
  border-color: #475569;
  background: #152032;
}

.vh-version-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2px;
}
.vh-version-label {
  font-size: 0.8rem;
  color: #e2e8f0;
  font-weight: 500;
}
.vh-version-num {
  font-size: 0.7rem;
  color: #64748b;
}

.vh-version-meta {
  font-size: 0.7rem;
  color: #64748b;
  margin-bottom: 4px;
}

.vh-version-actions {
  display: flex;
  gap: 0.5rem;
}
.vh-btn {
  background: transparent;
  border: 1px solid #334155;
  border-radius: 4px;
  padding: 2px 8px;
  cursor: pointer;
  font-size: 0.75rem;
  color: #94a3b8;
  transition: all 0.15s ease;
}
.vh-btn:hover {
  border-color: #475569;
  color: #e2e8f0;
  background: rgba(255,255,255,0.03);
}
.vh-btn-restore:hover {
  border-color: #ef4444;
  color: #ef4444;
}

.vh-compare-section {
  border-top: 1px solid #334155;
  margin-top: 0.5rem;
  padding-top: 0.5rem;
}
.vh-compare-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 0.5rem;
  margin-bottom: 0.5rem;
}
.vh-compare-header span {
  font-size: 0.8rem;
  color: #e2e8f0;
  font-weight: 500;
}
.vh-btn-close-compare {
  background: transparent;
  border: none;
  color: #94a3b8;
  font-size: 1rem;
  cursor: pointer;
  padding: 2px 6px;
}
.vh-btn-close-compare:hover {
  color: #e2e8f0;
}

.vh-compare-stats {
  display: flex;
  gap: 0.5rem;
  padding: 0 0.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.75rem;
}

.vh-compare-diff {
  background: #0f172a;
  border-radius: 8px;
  padding: 0.5rem;
  max-height: 400px;
  overflow: auto;
  border: 1px solid #1e293b;
  margin: 0 0.5rem;
}

.vh-compare-actions {
  display: flex;
  justify-content: flex-end;
  padding: 0.5rem;
}

.vh-compare-stats span { color: #94a3b8; font-weight: 500; }

/* ===================== 笔记行 Hover 提示 ===================== */
.note-tooltip-wrapper {
  position: relative;
}

.note-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 8px;
  padding: 10px 14px;
  min-width: 280px;
  max-width: 420px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s ease;
  font-size: 12px;
  line-height: 1.5;
}

.note-tooltip-wrapper:hover .note-tooltip {
  opacity: 1;
}

.note-tooltip-header {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}

.note-tooltip-avatar {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #6366f1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  flex-shrink: 0;
}

.note-tooltip-title {
  color: #e2e8f0;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.note-tooltip-meta {
  color: #94a3b8;
  font-size: 11px;
}

.note-tooltip-meta span {
  color: #cbd5e1;
}

/* ===================== Toast 通知提示 ===================== */
.custom-alert {
  position: fixed;
  top: 76px;
  right: 20px;
  z-index: 10001;
  min-width: 260px;
  max-width: 340px;
  animation: toastSlideIn 0.3s ease-out;
}
.custom-alert.toast-fade-out {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}
@keyframes toastSlideIn {
  from { opacity: 0; transform: translateX(50px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ===================== 回收站卡片状态 ===================== */
.trash-status-active {
  color: #f87171 !important;
}
.trash-status-empty {
  color: #34d399 !important;
}

/* ===================== 数据加载中遮罩 ===================== */
#loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10002;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
#loading-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
#loading-overlay .loader-spinner {
  width: 48px;
  height: 48px;
  border: 3px solid #334155;
  border-top-color: #6366f1;
  border-radius: 50%;
  animation: loading-spin 0.8s linear infinite;
  margin-bottom: 16px;
}
@keyframes loading-spin {
  to { transform: rotate(360deg); }
}
#loading-overlay .loader-text {
  color: #94a3b8;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.5px;
}
#loading-overlay .loader-subtext {
  color: #64748b;
  font-size: 12px;
  margin-top: 6px;
}

/* ===================== 版本历史按钮 ===================== */
.note-history-btn {
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 11px;
  color: #94a3b8;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.note-history-btn:hover {
  color: #818cf8;
  background: rgba(99, 102, 241, 0.2);
  border-color: rgba(99, 102, 241, 0.4);
}