/* SDGs会员中心基本样式 - 主色系更新为 #4B9CD6 */
.sdgs-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    margin: 20px 0;
}

.sdgs-stats > * {
    margin-bottom: 20px;
}

.sdgs-stats > *:last-child {
    margin-bottom: 0;
}

.stat-card {
    background: white;
    border: 1px solid #ccd0d4;
    border-radius: 4px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 1px 1px rgba(0,0,0,0.04);
}

.stat-card h3 {
    font-size: 2em;
    margin: 0 0 10px 0;
    color: #4B9CD6;
}

.stat-card p {
    margin: 0;
    color: #646970;
    font-weight: 500;
}

.sdgs-quick-actions {
    background: white;
    border: 1px solid #ccd0d4;
    border-radius: 4px;
    padding: 20px;
    margin: 20px 0;
}

/* 个人资料页面样式 - 更新主色 */
.um-profile-tab-content {
    padding: 20px 0;
}

.um-profile-tab-content h3 {
    color: #343a40;
    font-size: 1.5em;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #4B9CD6;
}

.sdgs-membership-section {
    margin-bottom: 30px;
    padding: 20px;
    background: #f9f9f9;
    border-radius: 5px;
    border-left: 4px solid #4B9CD6;
}

.sdgs-membership-section h4 {
    color: #4B9CD6;
    border-bottom: 1px solid #ddd;
    padding-bottom: 8px;
    margin-bottom: 15px;
}

.sdgs-courses-list,
.sdgs-certificates-list,
.sdgs-resources-list {
    display: grid;
    margin: 20px 0;
}

.sdgs-courses-list > *,
.sdgs-certificates-list > *,
.sdgs-resources-list > * {
    margin-bottom: 15px;
}

.sdgs-courses-list > *:last-child,
.sdgs-certificates-list > *:last-child,
.sdgs-resources-list > *:last-child {
    margin-bottom: 0;
}

.sdgs-course-item,
.sdgs-certificate-item,
.sdgs-resource-item {
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border-left: 3px solid #4B9CD6;
}

.sdgs-course-item h4,
.sdgs-certificate-item h4,
.sdgs-resource-item h4 {
    color: #4B9CD6;
    margin-bottom: 12px;
    font-size: 1.2em;
}

.sdgs-course-progress {
    display: flex;
    align-items: center;
    margin: 12px 0;
}

.sdgs-course-progress > * {
    margin-right: 10px;
}

.sdgs-course-progress > *:last-child {
    margin-right: 0;
}

.sdgs-progress-bar {
    flex-grow: 1;
    height: 8px;
    background: #f0f0f0;
    border-radius: 4px;
    overflow: hidden;
}

.sdgs-progress-fill {
    height: 100%;
    background: #4B9CD6;
    transition: width 0.3s ease;
}

.sdgs-exam-records {
    margin-top: 30px;
}

.um-table {
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
}

.um-table th,
.um-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #e0e0e0;
}

.um-table th {
    background: #f8f9fa;
    font-weight: bold;
    color: #4B9CD6;
}

.sdgs-progress-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    margin: 20px 0;
}

.sdgs-progress-stats > * {
    margin-bottom: 15px;
}

.sdgs-progress-stats > *:last-child {
    margin-bottom: 0;
}

.sdgs-stat-card {
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    padding: 20px;
    text-align: center;
    border-top: 3px solid #4B9CD6;
}

.sdgs-stat-value {
    font-size: 1.8em;
    font-weight: bold;
    color: #4B9CD6;
    margin: 10px 0;
}

.sdgs-chart-item {
    display: flex;
    align-items: center;
    margin: 12px 0;
}

.sdgs-chart-item > * {
    margin-right: 10px;
}

.sdgs-chart-item > *:last-child {
    margin-right: 0;
}

.sdgs-chart-item span:first-child {
    min-width: 150px;
    color: #4B9CD6;
    font-weight: 500;
}

.sdgs-chart-item span:last-child {
    min-width: 40px;
    text-align: right;
    color: #4B9CD6;
    font-weight: bold;
}

/* 按钮样式优化 */
.sdgs-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: #4B9CD6;
    color: white;
    text-decoration: none;
    border-radius: 6px;
    border: 2px solid #4B9CD6;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.4;
    text-align: center;
    transition: all 0.3s ease;
    margin: 5px;
}

.sdgs-button:hover {
    background: #316BA1;
    border-color: #316BA1;
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(75, 156, 214, 0.3);
}

.sdgs-button-small {
    padding: 8px 16px;
    font-size: 13px;
}

.sdgs-button-outline {
    background: transparent;
    color: #4B9CD6;
}

.sdgs-button-outline:hover {
    background: #4B9CD6;
    color: white;
}

/* 升级按钮样式 */
.sdgs-button-upgrade {
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    border: none;
    color: white;
    font-weight: 600;
}

.sdgs-button-upgrade:hover {
    background: linear-gradient(135deg, #e55a2b, #e0841a);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(247, 147, 30, 0.3);
}

/* 按钮容器 */
.sdgs-button-group {
    display: flex;
    flex-wrap: wrap;
    margin: 10px -5px;
}

.sdgs-button-group .sdgs-button {
    margin: 5px;
}

/* 资源下载特定样式 */
.sdgs-resource-meta {
    display: flex;
    margin: 10px 0;
}

.sdgs-resource-meta > * {
    margin-right: 20px;
}

.sdgs-resource-meta > *:last-child {
    margin-right: 0;
}

.meta-item {
    color: #666;
    font-size: 0.9em;
}

/* 证书特定样式 */
.certificate-score {
    background: #4B9CD6;
    color: white;
    padding: 4px 8px;
    border-radius: 3px;
    font-size: 0.8em;
    font-weight: bold;
}

/* 资源下载页面特定样式 */
.sdgs-resources-container {
    margin: 20px 0;
}

.sdgs-resources-container > * {
    margin-bottom: 25px;
}

.sdgs-resources-container > *:last-child {
    margin-bottom: 0;
}

/* 信息网格布局优化 */
.sdgs-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 15px;
    margin: 20px 0;
}

.sdgs-info-grid .info-item {
    display: flex;
    align-items: flex-start;
    padding: 12px 0;
    border-bottom: 1px solid #f1f3f4;
}

.sdgs-info-grid .info-item:last-child {
    border-bottom: none;
}

.sdgs-info-grid .info-item.full-width {
    grid-column: 1 / -1;
}

.sdgs-info-grid .info-item label {
    min-width: 120px;
    font-weight: 600;
    color: #4B9CD6;
    margin-right: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sdgs-info-grid .info-item span {
    color: #4a5568;
    flex: 1;
    line-height: 1.5;
}

/* 徽章样式 */
.sdgs-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8em;
    font-weight: 600;
    margin: 2px;
}

.sdgs-badge-primary {
    background: rgba(75, 156, 214, 0.1);
    color: #4B9CD6;
    border: 1px solid rgba(75, 156, 214, 0.2);
}

.sdgs-badge-warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

/* 操作按钮组优化 */
.sdgs-action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid #f1f3f4;
}

/* 空状态样式 */
.sdgs-empty-state {
    text-align: center;
    padding: 60px 20px;
    background: #fafafa;
    border-radius: 12px;
    border: 2px dashed #e0e0e0;
    margin: 20px 0;
}

.sdgs-empty-state i {
    font-size: 4em;
    color: #cbd5e0;
    margin-bottom: 20px;
    display: block;
}

.sdgs-empty-state h4 {
    color: #4a5568;
    margin-bottom: 12px;
    font-size: 1.4em;
}

.sdgs-empty-state p {
    color: #718096;
    margin-bottom: 25px;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* 会员信息区域样式 */
.sdgs-membership-section {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    border-left: 4px solid #4B9CD6;
}

.sdgs-membership-section h4 {
    color: #4B9CD6;
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 12px;
    margin-bottom: 20px;
    font-size: 1.2em;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* 文件图标颜色 */
.um-faicon-file-pdf-o {
    color: #e74c3c;
}

.um-faicon-file-word-o {
    color: #2b579a;
}

.um-faicon-file-powerpoint-o {
    color: #d24726;
}

.um-faicon-file-excel-o {
    color: #217346;
}

.um-faicon-file-video-o {
    color: #e67e22;
}

.um-faicon-file-archive-o {
    color: #f39c12;
}

.um-faicon-file-text-o {
    color: #4B9CD6;
}

/* 会员表单样式 */
.sdgs-member-form {
    max-width: 800px;
}

.sdgs-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

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

.sdgs-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2d3748;
}

.sdgs-form-group input[type="text"],
.sdgs-form-group input[type="tel"],
.sdgs-form-group input[type="email"],
.sdgs-form-group select,
.sdgs-form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.sdgs-form-group input:focus,
.sdgs-form-group select:focus,
.sdgs-form-group textarea:focus {
    border-color: #4B9CD6;
    outline: none;
    box-shadow: 0 0 0 3px rgba(75, 156, 214, 0.1);
}

.sdgs-form-group small {
    display: block;
    margin-top: 5px;
    color: #718096;
    font-size: 0.85em;
}

.sdgs-form-actions {
    display: flex;
    gap: 15px;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
}

/* 分数徽章 */
.course-score,
.material-score,
.exam-score {
    font-size: 0.8em;
    margin-left: 10px;
}

/* 通知样式 */
.sdgs-notice {
    padding: 15px;
    margin: 20px 0;
    border-radius: 6px;
    border-left: 4px solid;
}

.sdgs-notice-success {
    background: #f0fff4;
    border-color: #38a169;
    color: #2d3748;
}

.sdgs-notice-error {
    background: #fff5f5;
    border-color: #e53e3e;
    color: #2d3748;
}

/* 课程卡片样式 */
.sdgs-course-card {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.sdgs-course-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.course-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.course-header h4 {
    margin: 0;
    color: #2d3748;
    font-size: 1.3em;
    flex: 1;
}

.course-description {
    color: #4a5568;
    line-height: 1.6;
    margin-bottom: 20px;
}

.course-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #718096;
    font-size: 0.9em;
}

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

.course-progress {
    flex: 1;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
    font-size: 0.9em;
    color: #4a5568;
}

/* 信息完善提示组件 */
.sdgs-completion-prompt {
    background: linear-gradient(135deg, #fff8e1 0%, #ffecb3 100%);
    border: 2px solid #ffb300;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 30px;
    position: relative;
}

.prompt-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
}

.prompt-header i {
    color: #ff6f00;
    font-size: 1.5em;
}

.prompt-header h4 {
    margin: 0;
    color: #e65100;
    font-size: 1.3em;
}

.prompt-content p {
    margin: 0 0 15px 0;
    color: #5d4037;
    line-height: 1.5;
}

.progress-section {
    margin: 20px 0;
}

.prompt-actions {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.prompt-benefits {
    color: #388e3c;
    font-size: 0.9em;
    display: flex;
    align-items: center;
    gap: 5px;
}

/* 升级信息区域 */
.sdgs-upgrade-info {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    border-color: #4B9CD6;
}

.sdgs-upgrade-info h4 {
    color: #1565c0;
}

/* 证书中心空状态 */
.sdgs-certificate-empty {
    text-align: center;
    padding: 60px 20px;
    background: #fafafa;
    border-radius: 8px;
    border: 2px dashed #e0e0e0;
}

.sdgs-certificate-empty .empty-icon {
    font-size: 4em;
    color: #ffb300;
    margin-bottom: 20px;
}

.sdgs-certificate-empty h4 {
    color: #4B9CD6;
    margin-bottom: 10px;
}

.sdgs-certificate-empty p {
    color: #666;
    margin-bottom: 20px;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* 学习进度初始状态 */
.sdgs-progress-initial {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 30px;
    text-align: center;
}

.sdgs-progress-initial .progress-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.sdgs-progress-initial .stat-item {
    text-align: center;
}

.sdgs-progress-initial .stat-value {
    font-size: 2.5em;
    font-weight: bold;
    color: #4B9CD6;
    display: block;
}

.sdgs-progress-initial .stat-label {
    color: #666;
    font-size: 0.9em;
}

/* 全局信息完善提示 */
.sdgs-global-prompt {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    border: 1px solid #4B9CD6;
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 30px;
    color: #1565c0;
}

.sdgs-global-prompt .prompt-content {
    display: flex;
    align-items: center;
    gap: 20px;
}

.sdgs-global-prompt .prompt-icon {
    font-size: 2.5em;
    opacity: 0.8;
}

.sdgs-global-prompt .prompt-text {
    flex: 1;
}

.sdgs-global-prompt .prompt-text h4 {
    margin: 0 0 8px 0;
    color: #1565c0;
    font-size: 1.3em;
}

.sdgs-global-prompt .prompt-text p {
    margin: 0;
    opacity: 0.9;
    font-size: 0.95em;
}

.sdgs-global-prompt .prompt-progress {
    min-width: 200px;
}

.sdgs-global-prompt .sdgs-progress-bar {
    background: rgba(33, 150, 243, 0.3);
    height: 6px;
    border-radius: 3px;
    overflow: hidden;
}

.sdgs-global-prompt .sdgs-progress-fill {
    background: #2196f3;
    height: 100%;
    transition: width 0.3s ease;
}

/* 迷你提示条 */
.sdgs-mini-prompt {
    background: #fff8e1;
    border: 1px solid #ffd54f;
    border-radius: 8px;
    padding: 12px 20px;
    margin-bottom: 20px;
}

.sdgs-mini-prompt .mini-prompt-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sdgs-mini-prompt i {
    color: #ff8f00;
}

.sdgs-mini-prompt span {
    flex: 1;
    color: #5d4037;
    font-size: 0.9em;
}

/* 修复锁定状态遮罩效果 */
.course-locked,
.resource-locked {
    position: relative;
}

.course-locked::after,
.resource-locked::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 8px;
    z-index: 1;
}

.course-locked > *,
.resource-locked > * {
    position: relative;
    z-index: 2;
}

/* 锁定图标 */
.course-locked::before,
.resource-locked::before {
    content: "🔒";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2em;
    z-index: 3;
    color: #4B9CD6;
}

/* 权限控制按钮 */
.sdgs-permission-required .sdgs-button-download,
.sdgs-permission-required .sdgs-button-apply {
    display: none !important;
}

.sdgs-permission-required .sdgs-button-upgrade-svip,
.sdgs-permission-required .sdgs-button-upgrade-enterprise {
    display: inline-flex !important;
}

.sdgs-button-upgrade-svip,
.sdgs-button-upgrade-enterprise {
    display: none;
}

/* 升级按钮特定样式 */
.sdgs-button-upgrade-svip {
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    border: none;
}

.sdgs-button-upgrade-enterprise {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border: none;
}

.sdgs-button-upgrade-svip:hover,
.sdgs-button-upgrade-enterprise:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

/* 会员升级区域 */
.sdgs-upgrade-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    padding: 30px;
    margin: 30px 0;
    color: white;
    text-align: center;
}

.sdgs-upgrade-section h3 {
    color: white;
    margin-bottom: 15px;
    font-size: 1.8em;
}

.sdgs-upgrade-section p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 25px;
    font-size: 1.1em;
}

.sdgs-upgrade-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.sdgs-upgrade-option {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    backdrop-filter: blur(10px);
}

.sdgs-upgrade-option.featured {
    background: rgba(255, 255, 255, 0.15);
    border-color: #ffd700;
    transform: scale(1.05);
}

.sdgs-upgrade-option h4 {
    color: white;
    margin-bottom: 15px;
    font-size: 1.4em;
}

.sdgs-upgrade-price {
    font-size: 2em;
    font-weight: bold;
    color: #ffd700;
    margin: 15px 0;
}

.sdgs-upgrade-features {
    list-style: none;
    padding: 0;
    margin: 20px 0;
    text-align: left;
}

.sdgs-upgrade-features li {
    padding: 8px 0;
    color: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sdgs-upgrade-features li:last-child {
    border-bottom: none;
}

.sdgs-upgrade-features li::before {
    content: "✓";
    color: #4cd964;
    margin-right: 10px;
    font-weight: bold;
}

/* 升级提示区域 */
.upgrade-required {
    background: #fff8e1;
    border: 1px solid #ffd54f;
    border-radius: 8px;
    padding: 15px;
    margin: 15px 0;
}

.upgrade-required p {
    margin: 0 0 12px 0;
    color: #e65100;
    font-weight: 500;
    text-align: center;
}

.upgrade-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

/* 课程和资料页面描述 */
.sdgs-section-description {
    color: #666;
    margin-bottom: 25px;
    font-size: 1em;
    line-height: 1.5;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .sdgs-stats {
        grid-template-columns: 1fr;
    }
    
    .sdgs-progress-stats {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }
    
    .sdgs-chart-item {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .sdgs-chart-item span:first-child {
        min-width: auto;
        margin-bottom: 5px;
    }
    
    .sdgs-button-group {
        flex-direction: column;
    }
    
    .sdgs-button-group .sdgs-button {
        width: 100%;
        margin: 5px 0;
    }
    
    .sdgs-resource-meta {
        flex-direction: column;
    }
    
    .sdgs-resource-meta > * {
        margin-right: 0;
        margin-bottom: 5px;
    }
    
    .sdgs-resource-meta > *:last-child {
        margin-bottom: 0;
    }
    
    .sdgs-info-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .sdgs-info-grid .info-item {
        flex-direction: column;
        align-items: flex-start;
        padding: 10px 0;
    }
    
    .sdgs-info-grid .info-item label {
        min-width: auto;
        margin-right: 0;
        margin-bottom: 5px;
    }
    
    .sdgs-action-buttons {
        flex-direction: column;
    }
    
    .sdgs-action-buttons .sdgs-button {
        width: 100%;
        justify-content: center;
    }
    
    .sdgs-membership-section {
        padding: 20px 15px;
    }
    
    .sdgs-membership-section h4 {
        font-size: 1.1em;
    }
    
    .sdgs-form-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .sdgs-form-actions {
        flex-direction: column;
    }
    
    .sdgs-form-actions .sdgs-button {
        width: 100%;
        justify-content: center;
    }
    
    .sdgs-course-card .course-header {
        flex-direction: column;
        gap: 10px;
    }
    
    .prompt-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .prompt-actions .sdgs-button {
        width: 100%;
        justify-content: center;
    }
    
    .sdgs-progress-initial .progress-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .sdgs-global-prompt .prompt-content {
        flex-direction: column;
        align-items: stretch;
        gap: 15px;
    }
    
    .sdgs-global-prompt .prompt-progress {
        min-width: auto;
    }
    
    .sdgs-mini-prompt .mini-prompt-content {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    
    .course-header {
        flex-direction: column;
        gap: 10px;
    }
    
    .course-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .course-meta {
        flex-direction: column;
        gap: 8px;
    }
    
    .sdgs-upgrade-options {
        grid-template-columns: 1fr;
    }
    
    .sdgs-upgrade-option.featured {
        transform: none;
    }
    
    .sdgs-upgrade-section {
        padding: 20px 15px;
    }
    
    .sdgs-permission-required .sdgs-button-group {
        flex-direction: column;
    }
    
    .sdgs-permission-required .sdgs-button {
        width: 100%;
        margin: 5px 0;
    }
    
    .upgrade-actions {
        flex-direction: column;
    }
    
    .upgrade-actions .sdgs-button {
        width: 100%;
        justify-content: center;
    }
}