/* 加速器管理系统 - 主样式 */
:root {
  --primary: #4f46e5;
  --primary-light: #6366f1;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --bg: #f8fafc;
  --card-bg: #ffffff;
  --text: #1e293b;
  --text-secondary: #64748b;
  --border: #e2e8f0;
  --sidebar-width: 260px;
  --header-height: 60px;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.04);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* 布局 */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* 侧边栏 */
.sidebar {
  width: var(--sidebar-width);
  background: var(--card-bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

.sidebar-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-header .logo {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 18px;
  font-weight: bold;
}

.sidebar-header h1 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.sidebar-header small {
  font-size: 11px;
  color: var(--text-secondary);
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  overflow-y: auto;
}

.nav-group {
  margin-bottom: 8px;
}

.nav-group-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  cursor: pointer;
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  transition: all 0.2s;
  user-select: none;
}

.nav-group-title:hover {
  background: var(--bg);
  color: var(--text);
}

.nav-group-title .icon {
  font-size: 16px;
  margin-right: 8px;
}

.nav-group-title .arrow {
  transition: transform 0.2s;
  font-size: 12px;
}

.nav-group.open .nav-group-title .arrow {
  transform: rotate(180deg);
}

.nav-items {
  display: none;
  padding-left: 12px;
  margin-top: 4px;
}

.nav-group.open .nav-items {
  display: block;
}

.nav-item {
  display: flex;
  align-items: center;
  padding: 10px 16px;
  border-radius: 8px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  gap: 10px;
}

.nav-item:hover {
  background: #ede9fe;
  color: var(--primary);
}

.nav-item.active {
  background: linear-gradient(135deg, #eef2ff, #e0e7ff);
  color: var(--primary);
  font-weight: 500;
}

.nav-item .nav-icon {
  font-size: 18px;
  width: 22px;
  text-align: center;
}

/* 主内容区 */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
}

.top-bar {
  height: var(--header-height);
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.page-title {
  font-size: 18px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.content-area {
  padding: 24px 28px;
  flex: 1;
}

/* 卡片 */
.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  overflow: hidden;
}

.card-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.card-header h3 {
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-body {
  padding: 20px 24px;
}

/* 统计卡片 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 20px 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 16px;
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.stat-icon.purple { background: #ede9fe; }
.stat-icon.green { background: #d1fae5; }
.stat-icon.blue { background: #dbeafe; }
.stat-icon.orange { background: #fef3c7; }

.stat-info h4 {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

.stat-info .value {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
  font-family: inherit;
}

.btn-primary {
  background: var(--primary);
  color: white;
}
.btn-primary:hover { background: #4338ca; transform: translateY(-1px); }

.btn-success {
  background: var(--success);
  color: white;
}
.btn-success:hover { background: #059669; }

.btn-danger {
  background: var(--danger);
  color: white;
}
.btn-danger:hover { background: #dc2626; }

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

.btn-sm {
  padding: 5px 12px;
  font-size: 12px;
  border-radius: 6px;
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 5px 10px;
}
.btn-ghost:hover { background: var(--bg); color: var(--text); }

/* 表格 */
.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

thead th {
  background: var(--bg);
  padding: 11px 16px;
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

tbody tr:hover {
  background: #fafbfc;
}

tbody tr:last-child td {
  border-bottom: none;
}

/* 标签/徽章 */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.4;
}

.badge-active { background: #d1fae5; color: #065f46; }
.badge-inactive { background: #fee2e2; color: #991b1b; }
.badge-ss { background: #dbeafe; color: #1e40af; }
.badge-vmess { background: #ede9fe; color: #5b21b6; }
.badge-trojan { background: #fce7f3; color: #9d174d; }
.badge-vless { background: #e0e7ff; color: #3730a3; }
.badge-hysteria2 { background: #fef3c7; color: #92400e; }
.badge-ssr { background: #ffe4e6; color: #be123c; }

/* 表单 */
.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 9px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  font-family: inherit;
  transition: all 0.2s;
  background: var(--card-bg);
  color: var(--text);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

textarea.form-control {
  resize: vertical;
  min-height: 140px;
  font-family: 'Consolas', 'Monaco', monospace;
  font-size: 12px;
  line-height: 1.6;
}

select.form-control {
  cursor: pointer;
}

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* 模态框 */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.45);
  z-index: 999;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease;
}

.modal-overlay.show { display: flex; }

.modal {
  background: var(--card-bg);
  border-radius: 16px;
  width: 90%;
  max-width: 580px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.25s ease;
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 16px;
  font-weight: 600;
}

.modal-close {
  width: 32px;
  height: 32px;
  border: none;
  background: var(--bg);
  border-radius: 8px;
  cursor: pointer;
  font-size: 18px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.modal-close:hover { background: var(--danger); color: white; }

.modal-body { padding: 24px; }
.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* 搜索框 */
.search-box {
  position: relative;
  max-width: 280px;
}

.search-box input {
  padding-left: 36px;
}

.search-box .search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  font-size: 14px;
  pointer-events: none;
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-secondary);
}

.empty-state .empty-icon {
  font-size: 52px;
  margin-bottom: 14px;
  opacity: 0.5;
}

.empty-state p {
  font-size: 14px;
  margin-top: 8px;
}

/* Toast 提示 */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  animation: slideInRight 0.3s ease;
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 240px;
}

.toast-success { background: #d1fae5; color: #065f46; }
.toast-error { background: #fee2e2; color: #991b1b; }
.toast-info { background: #dbeafe; color: #1e40af; }

/* 工具栏 */
.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.toolbar-left { display: flex; align-items: center; gap: 10px; flex: 1; }
.toolbar-right { display: flex; align-items: center; gap: 8px; }

/* 复选框 */
.checkbox {
  width: 17px;
  height: 17px;
  accent-color: var(--primary);
  cursor: pointer;
}

/* 分页 */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-secondary);
}

.pagination-btns {
  display: flex;
  gap: 4px;
}

.pagination button {
  padding: 5px 12px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  font-family: inherit;
  color: var(--text-secondary);
  transition: all 0.2s;
}
.pagination button:hover:not(:disabled) { border-color: var(--primary); color: var(--primary); }
.pagination button.active { background: var(--primary); color: white; border-color: var(--primary); }
.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }

/* 订阅卡片列表 */
.sub-list { display: flex; flex-direction: column; gap: 12px; }

.sub-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all 0.2s;
  background: var(--card-bg);
}
.sub-card:hover { border-color: var(--primary-light); box-shadow: var(--shadow); }

.sub-card-info { flex: 1; min-width: 0; }
.sub-card-info h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.sub-card-info p {
  font-size: 12px;
  color: var(--text-secondary);
  word-break: break-all;
}
.sub-card-meta {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 6px;
}
.sub-card-meta span { display: flex; align-items: center; gap: 4px; }

.sub-card-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

/* 导入区域 */
.import-area {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 36px;
  text-align: center;
  transition: all 0.2s;
  cursor: pointer;
  background: #fafbfc;
}
.import-area:hover, .import-area.dragover {
  border-color: var(--primary);
  background: #f5f3ff;
}
.import-area .upload-icon {
  font-size: 42px;
  margin-bottom: 12px;
  opacity: 0.6;
}
.import-area p {
  color: var(--text-secondary);
  font-size: 14px;
}
.import-area small {
  color: var(--text-secondary);
  opacity: 0.6;
  font-size: 12px;
}

/* 动画 */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
@keyframes slideInRight { from { transform: translateX(40px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* 配置格式 Tag 选择器 */
.format-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: 1.5px solid var(--border);
  background: var(--card-bg);
  color: var(--text-secondary);
  transition: all 0.2s;
  user-select: none;
}
.format-tag:hover { border-color: var(--primary-light); color: var(--primary); }
.format-tag.active {
  background: linear-gradient(135deg, #eef2ff, #e0e7ff);
  border-color: var(--primary);
  color: var(--primary);
  font-weight: 600;
}
.format-tag .tag-close {
  margin-left: 6px;
  font-size: 14px;
  opacity: 0.5;
}
.format-tag.active .tag-close { opacity: 1; }

/* 包含节点选择器 */
.node-check-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s;
  font-size: 12.5px;
}
.node-check-item:hover { background: #f0f4ff; }
.node-check-item input[type="checkbox"] { accent-color: var(--primary); width:15px;height:15px }
.node-check-item .node-name { flex:1;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap }
.node-check-item .node-info { color:#94a3b8;font-size:11px }

/* 订阅卡片增强 */
.sub-card-meta .meta-expired { color: #ef4444 !important; font-weight: 600; }
.sub-card-actions .btn-export { background: #dbeafe; color: #1d4ed8; }
.sub-card-actions .btn-export:hover { background: #bfdbfe; }

/* 过期时间快捷按钮 */
.expire-btn-group button.active { background: var(--primary) !important; color: white !important; border-color: var(--primary) !important; }

/* ========== 订阅链接行（核心功能）========== */
.sub-link-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
  padding: 10px 12px;
  background: linear-gradient(135deg, #f0f9ff, #eef2ff);
  border: 1px solid #bfdbfe;
  border-radius: 8px;
}
.sub-link-label {
  font-size: 12px;
  font-weight: 600;
  color: #1d4ed8;
  white-space: nowrap;
  flex-shrink: 0;
}
.sub-link-box {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  min-width: 0;
}
.sub-link-input {
  flex: 1;
  min-width: 0;
  font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
  font-size: 12px;
  padding: 6px 10px;
  border: 1px solid #93c5fd;
  border-radius: 6px;
  background: white;
  color: #1e40af;
  outline: none;
  transition: all 0.2s;
}
.sub-link-input:hover { border-color: #60a5fa; }
.sub-link-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,0.15); }
.sub-copy-btn {
  flex-shrink: 0;
  font-size: 12px !important;
  padding: 5px 14px !important;
  letter-spacing: 0.5px;
  transition: all 0.2s;
}
.sub-copy-btn.copied {
  background: #10b981 !important;
  border-color: #10b981 !important;
  animation: copyPulse 0.4s ease;
}
@keyframes copyPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.08); }
  100% { transform: scale(1); }
}

/* 响应式 */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .main-content { margin-left: 0; }
  .row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .content-area { padding: 16px; }
  /* 订阅链接行移动端适配 */
  .sub-link-row { flex-direction: column; align-items: stretch; gap: 6px; }
  .sub-link-label { white-space: normal; }
  .sub-link-box { width: 100%; }
}

/* 页面切换动画 */
.page-section { display: none; animation: fadeIn 0.25s ease; }
.page-section.active { display: block; }

/* 协议图标颜色 */
.protocol-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 6px;
}
.dot-ss { background: #3b82f6; }
.dot-vmess { background: #8b5cf6; }
.dot-trojan { background: #ec4899; }
.dot-vless { background: #6366f1; }
.dot-hysteria2 { background: #f59e0b; }
.dot-ssr { background: #ef4444; }