/* 管理后台样式 */

/* 基础样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 20px;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 16px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    border: none;
    height: 36px;
    min-width: 88px;
    white-space: nowrap;
}

.btn:hover {
    opacity: 0.9;
}

.btn-primary {
    background-color: #4CAF50;
    color: white;
}

.btn-danger {
    background-color: #f44336;
    color: white;
}

.btn-small {
    padding: 0 12px;
    font-size: 13px;
    height: 32px;
    min-width: 64px;
}

/* 表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background-color: #f8f9fa;
    font-weight: 600;
}

tr:hover {
    background-color: #f5f5f5;
}

/* 管理后台头部 */
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 20px;
    background-color: #fff;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.admin-header h2 {
    margin: 0;
    font-size: 24px;
    color: #333;
}

.admin-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.admin-actions .btn {
    margin: 0;
}

/* 登录表单样式 */
.login-form {
    max-width: 400px;
    margin: 40px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.login-form h2 {
    text-align: center;
    color: #333;
    margin-bottom: 20px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 14px;
    line-height: 1.5;
}

.form-group small {
    display: block;
    margin-top: 4px;
    color: #666;
    font-size: 12px;
}

.error-message {
    color: #f44336;
    margin-bottom: 15px;
}

/* 左侧导航栏 */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 200px;
    background-color: #fff;
    border-right: 1px solid #eee;
    padding: 20px 0;
}

.sidebar-nav {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-nav li {
    margin: 0;
    padding: 0;
}

.sidebar-nav a {
    display: block;
    padding: 12px 20px;
    color: #333;
    text-decoration: none;
    transition: background-color 0.3s;
    font-weight: bold;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background-color: #f5f5f5;
    color: #4CAF50;
}

.main-content {
    flex: 1;
    padding: 20px;
    background-color: #f5f5f5;
}

/* 代码列表 */
.codes-list {
    background: #fff;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    overflow: hidden;
}

.codes-list table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 0;
}

.codes-list th,
.codes-list td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.codes-list th {
    background-color: #f8f9fa;
    font-weight: 500;
    color: #333;
}

.codes-list tr:hover {
    background-color: #f5f5f5;
}

.action-buttons {
    display: flex;
    gap: 8px;
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
    padding: 20px 0;
}

.pagination .btn {
    min-width: 40px;
    padding: 0 12px;
}

.pagination .btn.active {
    background-color: #4CAF50;
    color: white;
}

/* 复选框样式 */
.code-checkbox,
#select-all {
    width: 18px;
    height: 18px;
    cursor: pointer;
    margin: 0;
    vertical-align: middle;
}

/* 消息提示 */
.success,
.error {
    padding: 12px 16px;
    margin-bottom: 20px;
    border-radius: 4px;
    font-size: 14px;
}

.success {
    background-color: #E8F5E9;
    color: #2E7D32;
    border: 1px solid #C8E6C9;
}

.error {
    background-color: #FFEBEE;
    color: #C62828;
    border: 1px solid #FFCDD2;
}