/* 三（1）班家委会管理系统 - 全局样式 */
:root {
  --primary-color: #4f6ef7;
  --primary-dark: #3b55d9;
  --primary-light: #e8edff;
  --success-color: #52c41a;
  --warning-color: #faad14;
  --danger-color: #ff4d4f;
  --info-color: #1890ff;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --bg-primary: #ffffff;
  --bg-secondary: #f5f7fa;
  --bg-tertiary: #f0f2f5;
  --border-color: #e5e7eb;
  --sidebar-width: 220px;
  --header-height: 60px;
  --border-radius: 8px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
}

* { 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;
  font-size: 14px;
  color: var(--text-primary);
  background-color: var(--bg-secondary);
  line-height: 1.5;
}

a { color: var(--primary-color); text-decoration: none; }
a:hover { color: var(--primary-dark); }

/* ========== 登录页 ========== */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 20px;
}

.login-card {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
  padding: 40px;
  width: 100%;
  max-width: 400px;
}

.login-card .logo {
  text-align: center;
  margin-bottom: 30px;
}

.login-card .logo-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 28px;
  font-weight: bold;
  margin-bottom: 12px;
}

.login-card h1 {
  font-size: 22px;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.login-card .subtitle {
  color: var(--text-secondary);
  font-size: 13px;
}

.login-card .form-group {
  margin-bottom: 20px;
}

.login-card label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--text-primary);
}

.login-card input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 14px;
  transition: border-color 0.2s;
}

.login-card input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(79, 110, 247, 0.1);
}

.login-card .btn-login {
  width: 100%;
  padding: 12px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  border: none;
  border-radius: var(--border-radius);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.2s;
}

.login-card .btn-login:hover { opacity: 0.9; }

.login-card .btn-login:disabled { opacity: 0.6; cursor: not-allowed; }

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

/* 侧边栏 */
.sidebar {
  width: var(--sidebar-width);
  background: #1f2937;
  color: #fff;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  overflow-y: auto;
  z-index: 100;
}

.sidebar-logo {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding: 0 16px;
}

.sidebar-logo .logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  font-weight: bold;
  margin-right: 10px;
}

.sidebar-logo .logo-text {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
}

.sidebar-menu {
  padding: 12px 0;
}

.menu-item {
  display: flex;
  align-items: center;
  padding: 10px 20px;
  color: rgba(255,255,255,0.7);
  cursor: pointer;
  transition: all 0.2s;
  border-left: 3px solid transparent;
}

.menu-item:hover {
  color: #fff;
  background: rgba(255,255,255,0.05);
}

.menu-item.active {
  color: #fff;
  background: rgba(79, 110, 247, 0.2);
  border-left-color: var(--primary-color);
}

.menu-item .menu-icon {
  width: 20px;
  height: 20px;
  margin-right: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.menu-item .menu-text {
  flex: 1;
  font-size: 14px;
}

.menu-group-title {
  padding: 12px 20px 6px;
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* 主内容区 */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
}

/* 顶部导航 */
.header {
  height: var(--header-height);
  background: #fff;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.header-left {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-icon-btn {
  position: relative;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.2s;
}

.header-icon-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.header-icon-btn .badge {
  position: absolute;
  top: 4px;
  right: 4px;
  background: var(--danger-color);
  color: #fff;
  font-size: 10px;
  padding: 1px 5px;
  border-radius: 10px;
  min-width: 16px;
  text-align: center;
  line-height: 1.2;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--border-radius);
  transition: background 0.2s;
  position: relative;
}

.user-info:hover {
  background: var(--bg-tertiary);
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 500;
}

.user-name {
  font-size: 14px;
  color: var(--text-primary);
  font-weight: 500;
}

.user-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  min-width: 160px;
  padding: 6px 0;
  display: none;
  z-index: 200;
  margin-top: 4px;
}

.user-dropdown.show { display: block; }

.user-dropdown a {
  display: block;
  padding: 8px 16px;
  color: var(--text-primary);
  font-size: 14px;
}

.user-dropdown a:hover {
  background: var(--bg-tertiary);
  color: var(--primary-color);
}

.user-dropdown .divider {
  height: 1px;
  background: var(--border-color);
  margin: 6px 0;
}

/* 内容区 */
.page-content {
  padding: 24px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.page-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
}

/* 卡片 */
.card {
  background: #fff;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.card-body {
  padding: 20px;
}

/* 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: #fff;
  border-radius: var(--border-radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  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.primary { background: var(--primary-light); color: var(--primary-color); }
.stat-icon.success { background: #f0fdf4; color: var(--success-color); }
.stat-icon.warning { background: #fffbeb; color: var(--warning-color); }
.stat-icon.danger { background: #fef2f2; color: var(--danger-color); }
.stat-icon.info { background: #eff6ff; color: var(--info-color); }

.stat-info .stat-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.stat-info .stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  background: #fff;
  color: var(--text-primary);
  gap: 6px;
}

.btn:hover { border-color: var(--primary-color); color: var(--primary-color); }

.btn-primary {
  background: var(--primary-color);
  color: #fff;
  border-color: var(--primary-color);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  border-color: var(--primary-dark);
}

.btn-success {
  background: var(--success-color);
  color: #fff;
  border-color: var(--success-color);
}

.btn-success:hover { opacity: 0.9; color: #fff; }

.btn-danger {
  background: var(--danger-color);
  color: #fff;
  border-color: var(--danger-color);
}

.btn-danger:hover { opacity: 0.9; color: #fff; }

.btn-warning {
  background: var(--warning-color);
  color: #fff;
  border-color: var(--warning-color);
}

.btn-warning:hover { opacity: 0.9; color: #fff; }

.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-lg { padding: 10px 24px; font-size: 15px; }
.btn-block { width: 100%; }

/* 表单 */
.form-row {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.form-group {
  flex: 1;
  min-width: 200px;
}

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

.form-group .required {
  color: var(--danger-color);
  margin-right: 4px;
}

.form-control {
  width: 100%;
  padding: 7px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 14px;
  transition: border-color 0.2s;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(79, 110, 247, 0.1);
}

textarea.form-control { resize: vertical; min-height: 80px; }

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 8px center;
  background-repeat: no-repeat;
  background-size: 16px;
  padding-right: 32px;
}

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

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.table th {
  background: var(--bg-secondary);
  font-weight: 600;
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
}

.table tbody tr:hover {
  background: var(--bg-secondary);
}

.table .text-center { text-align: center; }
.table .text-right { text-align: right; }

/* 状态标签 */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.5;
}

.badge-primary { background: var(--primary-light); color: var(--primary-color); }
.badge-success { background: #f0fdf4; color: var(--success-color); }
.badge-warning { background: #fffbeb; color: #b45309; }
.badge-danger { background: #fef2f2; color: var(--danger-color); }
.badge-info { background: #eff6ff; color: var(--info-color); }
.badge-secondary { background: var(--bg-tertiary); color: var(--text-secondary); }

/* 分页 */
.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
}

.pagination-info {
  color: var(--text-secondary);
  font-size: 13px;
}

.pagination-buttons {
  display: flex;
  gap: 6px;
}

.pagination-buttons button {
  min-width: 32px;
  height: 32px;
  padding: 0 8px;
  border: 1px solid var(--border-color);
  background: #fff;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-primary);
}

.pagination-buttons button:hover:not(:disabled) {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.pagination-buttons button.active {
  background: var(--primary-color);
  color: #fff;
  border-color: var(--primary-color);
}

.pagination-buttons button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 筛选栏 */
.filter-bar {
  background: #fff;
  border-radius: var(--border-radius);
  padding: 16px 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}

.filter-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: flex-end;
}

.filter-item {
  flex: 1;
  min-width: 160px;
  max-width: 220px;
}

.filter-item label {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  color: var(--text-secondary);
}

.filter-actions {
  display: flex;
  gap: 8px;
  padding-bottom: 1px;
}

/* 模态框 */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

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

.modal {
  background: #fff;
  border-radius: 12px;
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.modal-close {
  background: none;
  border: none;
  font-size: 20px;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  line-height: 1;
}

.modal-close:hover { color: var(--text-primary); }

.modal-body { padding: 20px; }

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* 消息提示 */
.toast {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 12px 20px;
  border-radius: 8px;
  color: #fff;
  font-size: 14px;
  z-index: 2000;
  box-shadow: var(--shadow-lg);
  animation: slideIn 0.3s ease;
  min-width: 200px;
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.toast.success { background: var(--success-color); }
.toast.error { background: var(--danger-color); }
.toast.info { background: var(--info-color); }
.toast.warning { background: var(--warning-color); }

/* 成员卡片 */
.member-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.member-card {
  background: #fff;
  border-radius: var(--border-radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all 0.2s;
}

.member-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.member-main {
  display: flex;
  gap: 16px;
  flex: 1;
}

.member-actions {
  display: flex;
  gap: 6px;
  justify-content: flex-end;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
}

.member-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 500;
  flex-shrink: 0;
}

.member-info h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.member-role {
  font-size: 13px;
  color: var(--primary-color);
  margin-bottom: 8px;
}

.member-contact {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 任务详情 */
.task-detail-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}

.task-detail-title {
  font-size: 20px;
  font-weight: 600;
}

.task-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
  padding: 16px;
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
}

.task-meta-item {
  font-size: 13px;
}

.task-meta-label {
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.task-meta-value {
  font-weight: 500;
  color: var(--text-primary);
}

/* 评论区 */
.comment-section {
  margin-top: 20px;
}

.comment-list {
  margin-bottom: 16px;
}

.comment-item {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
}

.comment-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.comment-body {
  flex: 1;
}

.comment-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.comment-author {
  font-weight: 500;
  font-size: 14px;
}

.comment-time {
  font-size: 12px;
  color: var(--text-muted);
}

.comment-content {
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.6;
}

.comment-input {
  display: flex;
  gap: 10px;
}

.comment-input textarea {
  flex: 1;
  resize: none;
  min-height: 60px;
}

/* 消息列表 */
.message-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 16px;
}

.message-tab {
  padding: 10px 16px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.message-tab.active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  font-weight: 500;
}

.message-list {
  background: #fff;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}

.message-item {
  display: flex;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: background 0.2s;
}

.message-item:hover {
  background: var(--bg-secondary);
}

.message-item.unread {
  background: #f0f7ff;
}

.message-item:last-child { border-bottom: none; }

.message-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.message-icon.system { background: #eff6ff; color: var(--info-color); }
.message-icon.task { background: #f0fdf4; color: var(--success-color); }
.message-icon.fund { background: #fef2f2; color: var(--danger-color); }

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

.message-title {
  font-weight: 500;
  font-size: 14px;
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.message-item.unread .message-title {
  font-weight: 600;
}

.message-preview {
  font-size: 13px;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.message-time {
  font-size: 12px;
  color: var(--text-muted);
  flex-shrink: 0;
  padding-top: 2px;
}

.message-actions {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

/* 权限配置表格 */
.perm-table th,
.perm-table td {
  text-align: center;
  padding: 8px;
}

.perm-table th:first-child,
.perm-table td:first-child {
  text-align: left;
}

.perm-checkbox {
  width: 16px;
  height: 16px;
  cursor: pointer;
}

/* 错误页 */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background: var(--bg-secondary);
}

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 12px;
}

.error-message {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* 进度条 */
.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar .progress-fill {
  height: 100%;
  background: var(--primary-color);
  border-radius: 3px;
  transition: width 0.3s;
}

/* 响应式 */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s;
  }
  .sidebar.show { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .form-row { flex-direction: column; }
}