/* ==================== 食光旅记后台管理系统 - 全局样式 ==================== */

/* ===== 重置样式 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #FF6B6B;
  --primary-dark: #ee5a52;
  --primary-light: #ff8585;
  --secondary: #4ECDC4;
  --secondary-dark: #3eb8af;
  --dark: #2D3436;
  --dark-light: #4a5557;
  --light: #F8F9FA;
  --white: #ffffff;
  --border: #e9ecef;
  --text: #2D3436;
  --text-secondary: #636e72;
  --text-light: #b2bec3;
  --success: #2ed573;
  --warning: #ffa502;
  --danger: #ff4757;
  --info: #4ECDC4;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --sidebar-width: 240px;
  --sidebar-collapsed-width: 64px;
  --topbar-height: 60px;
  --transition: all 0.3s ease;
}

html, body {
  height: 100%;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--light);
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea, select { font-family: inherit; outline: none; }

/* ===== 布局 ===== */
.admin-layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ===== 侧边栏 ===== */
.sidebar {
  width: var(--sidebar-width);
  background: var(--dark);
  color: #b2bec3;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: var(--transition);
  position: relative;
  z-index: 100;
}

.sidebar-header {
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow: hidden;
}

.logo-icon {
  font-size: 28px;
  flex-shrink: 0;
}

.logo-text {
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
  white-space: nowrap;
  letter-spacing: 0.5px;
}

.sidebar-toggle {
  color: var(--text-light);
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  display: flex;
  align-items: center;
}

.sidebar-toggle:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 12px 0;
}

.sidebar-nav::-webkit-scrollbar {
  width: 4px;
}

.sidebar-nav::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  color: #b2bec3;
  transition: var(--transition);
  border-left: 3px solid transparent;
  white-space: nowrap;
  position: relative;
}

.nav-item:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.05);
}

.nav-item.active {
  color: var(--white);
  background: rgba(255, 107, 107, 0.12);
  border-left-color: var(--primary);
}

.nav-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.version-text {
  font-size: 12px;
  color: var(--text-light);
}

/* 侧边栏收起状态 */
.sidebar-collapsed .sidebar {
  width: var(--sidebar-collapsed-width);
}

.sidebar-collapsed .logo-text,
.sidebar-collapsed .nav-item span,
.sidebar-collapsed .version-text {
  display: none;
}

.sidebar-collapsed .nav-item {
  justify-content: center;
  padding: 12px;
}

.sidebar-collapsed .sidebar-toggle {
  display: none;
}

/* ===== 主区域 ===== */
.main-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

/* ===== 顶部栏 ===== */
.topbar {
  height: var(--topbar-height);
  background: var(--white);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.page-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}

.mobile-menu-btn {
  display: none;
  color: var(--text);
  padding: 6px;
}

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

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

.admin-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 16px;
}

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

.btn-logout {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  font-size: 13px;
}

.btn-logout:hover {
  color: var(--danger);
  background: rgba(255, 71, 87, 0.08);
}

/* ===== 内容区 ===== */
.content-area {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

/* ===== 卡片 ===== */
.card {
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  margin-bottom: 20px;
}

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

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

/* 统计卡片 */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

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

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

.stat-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.stat-icon-primary { background: rgba(255, 107, 107, 0.12); color: var(--primary); }
.stat-icon-secondary { background: rgba(78, 205, 196, 0.12); color: var(--secondary); }
.stat-icon-success { background: rgba(46, 213, 115, 0.12); color: var(--success); }
.stat-icon-warning { background: rgba(255, 165, 2, 0.12); color: var(--warning); }

.stat-info {
  flex: 1;
  min-width: 0;
}

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

.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

.stat-trend {
  font-size: 12px;
  margin-top: 4px;
}

.stat-trend.up { color: var(--success); }
.stat-trend.down { color: var(--danger); }

/* ===== 表格 ===== */
.table-wrapper {
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 12px;
}

.table-toolbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.table-toolbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

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

.data-table th {
  background: var(--light);
  padding: 12px 16px;
  text-align: left;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: var(--text);
}

.data-table tbody tr {
  transition: var(--transition);
}

.data-table tbody tr:hover {
  background: rgba(78, 205, 196, 0.04);
}

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

/* 表格内头像 */
.table-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--light);
}

/* 表格内图片 */
.table-thumb {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  background: var(--light);
}

/* 状态标签 */
.status-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.status-tag::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.status-tag-success { background: rgba(46, 213, 115, 0.12); color: var(--success); }
.status-tag-danger { background: rgba(255, 71, 87, 0.12); color: var(--danger); }
.status-tag-warning { background: rgba(255, 165, 2, 0.12); color: var(--warning); }
.status-tag-info { background: rgba(78, 205, 196, 0.12); color: var(--secondary); }

/* 操作按钮组 */
.action-btns {
  display: flex;
  gap: 6px;
}

.action-btn {
  padding: 4px 10px;
  font-size: 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  color: var(--text-secondary);
}

.action-btn:hover { background: var(--light); color: var(--primary); }
.action-btn.edit:hover { color: var(--secondary); }
.action-btn.delete:hover { color: var(--danger); }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
}

.btn-secondary {
  background: var(--light);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: #eef0f2;
}

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

.btn-success:hover {
  background: #27ae60;
}

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

.btn-danger:hover {
  background: #e84118;
}

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

.btn-lg {
  padding: 12px 28px;
  font-size: 15px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

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

.form-control {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--text);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.12);
}

.form-control::placeholder {
  color: var(--text-light);
}

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

select.form-control {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23b2bec3' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

/* 搜索框 */
.search-box {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.search-box input {
  padding: 8px 14px 8px 36px;
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  width: 220px;
  transition: var(--transition);
}

.search-box input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.12);
}

.search-box::before {
  content: '';
  position: absolute;
  left: 12px;
  width: 16px;
  height: 16px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23b2bec3' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E") no-repeat center;
}

/* ===== 分页 ===== */
.pagination {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 16px 20px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.page-btn {
  min-width: 32px;
  height: 32px;
  padding: 0 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  background: var(--white);
}

.page-btn:hover:not(.disabled):not(.active) {
  border-color: var(--primary);
  color: var(--primary);
}

.page-btn.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.page-btn.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.page-ellipsis {
  padding: 0 4px;
  color: var(--text-light);
}

.page-info {
  font-size: 13px;
  color: var(--text-secondary);
  margin-left: 8px;
}

.page-jump {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-left: 12px;
}

.page-input {
  width: 50px;
  height: 30px;
  padding: 0 6px;
  text-align: center;
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

/* ===== 弹窗 ===== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(45, 52, 54, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.modal-overlay.show {
  opacity: 1;
}

.modal {
  background: var(--white);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 600px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  transform: scale(0.9) translateY(20px);
  transition: transform 0.3s ease;
}

.modal-overlay.show .modal {
  transform: scale(1) translateY(0);
}

.modal-sm {
  max-width: 420px;
}

.modal-lg {
  max-width: 800px;
}

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

.modal-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
}

.modal-close {
  font-size: 24px;
  color: var(--text-light);
  transition: var(--transition);
  line-height: 1;
  padding: 4px;
}

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

.modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}

/* ===== 通知提示 ===== */
.notification-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.notification {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: var(--white);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  min-width: 280px;
  max-width: 400px;
  transform: translateX(120%);
  transition: transform 0.3s ease;
  border-left: 4px solid;
}

.notification.show {
  transform: translateX(0);
}

.notification-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: bold;
  color: var(--white);
  flex-shrink: 0;
}

.notification-message {
  font-size: 13px;
  color: var(--text);
  flex: 1;
}

.notification-success { border-left-color: var(--success); }
.notification-success .notification-icon { background: var(--success); }
.notification-error { border-left-color: var(--danger); }
.notification-error .notification-icon { background: var(--danger); }
.notification-warning { border-left-color: var(--warning); }
.notification-warning .notification-icon { background: var(--warning); }
.notification-info { border-left-color: var(--secondary); }
.notification-info .notification-icon { background: var(--secondary); }

/* ===== 加载动画 ===== */
.loading-spinner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  gap: 12px;
  color: var(--text-light);
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===== 空状态 ===== */
.empty-state {
  padding: 60px 20px;
  text-align: center;
  color: var(--text-light);
}

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

/* ===== 错误提示 ===== */
.error-box {
  padding: 40px 20px;
  text-align: center;
  color: var(--danger);
}

/* ===== 图表区域 ===== */
.chart-container {
  position: relative;
  height: 280px;
  width: 100%;
}

.chart-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* ===== 文件预览 ===== */
.file-preview {
  margin-top: 8px;
}

.file-preview img {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

/* ===== 上传区域 ===== */
.upload-area {
  border: 2px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}

.upload-area:hover {
  border-color: var(--primary);
  background: rgba(255, 107, 107, 0.04);
}

.upload-area.dragover {
  border-color: var(--primary);
  background: rgba(255, 107, 107, 0.08);
}

.upload-icon {
  font-size: 32px;
  color: var(--text-light);
  margin-bottom: 8px;
}

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

.upload-hint {
  font-size: 12px;
  color: var(--text-light);
  margin-top: 4px;
}

/* ===== 设置页 ===== */
.settings-section {
  margin-bottom: 24px;
}

.settings-section-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* ===== 登录页 ===== */
.login-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 9999;
}

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #2D3436 0%, #1a1d1e 100%);
  position: relative;
  overflow: hidden;
}

/* 登录页背景装饰 */
.login-page::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 20% 50%, rgba(255, 107, 107, 0.15) 0%, transparent 50%),
              radial-gradient(circle at 80% 80%, rgba(78, 205, 196, 0.12) 0%, transparent 50%),
              radial-gradient(circle at 50% 20%, rgba(255, 107, 107, 0.08) 0%, transparent 50%);
  animation: bgFloat 20s ease-in-out infinite;
}

@keyframes bgFloat {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(-30px, -30px) rotate(180deg); }
}

.login-card {
  position: relative;
  width: 400px;
  max-width: 90vw;
  background: var(--white);
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  z-index: 1;
}

.login-logo {
  text-align: center;
  margin-bottom: 32px;
}

.login-logo-icon {
  font-size: 48px;
  margin-bottom: 8px;
}

.login-logo-text {
  font-size: 22px;
  font-weight: 700;
  color: var(--dark);
}

.login-logo-sub {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 4px;
}

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

.login-form .form-control {
  padding: 12px 16px;
  font-size: 14px;
}

.login-btn {
  width: 100%;
  padding: 12px;
  font-size: 15px;
  font-weight: 600;
  margin-top: 8px;
}

.login-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 12px;
  color: var(--text-light);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .chart-grid {
    grid-template-columns: 1fr;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100%;
    transform: translateX(-100%);
    z-index: 200;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .mobile-menu-btn {
    display: flex;
  }

  .content-area {
    padding: 16px;
  }

  .stat-grid {
    grid-template-columns: 1fr;
  }

  .table-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .table-toolbar-left,
  .table-toolbar-right {
    width: 100%;
  }

  .search-box input {
    width: 100%;
  }

  .data-table {
    font-size: 12px;
  }

  .data-table th,
  .data-table td {
    padding: 10px 8px;
  }

  .admin-name {
    display: none;
  }

  .btn-logout span {
    display: none;
  }

  .pagination {
    justify-content: center;
  }

  .page-jump {
    display: none;
  }
}

@media (max-width: 480px) {
  .login-card {
    padding: 30px 24px;
  }

  .topbar {
    padding: 0 16px;
  }

  .page-title {
    font-size: 16px;
  }
}