.vk-edu-ranking {
    background: #fff;
    border: 1px solid #e0e0e0;
    padding: 20px;
    margin: 20px 0;
}
.vk-edu-ranking h3 {
    margin-top: 0;
    margin-bottom: 20px;
}
.vk-edu-ranking ol {
    list-style: none;
    margin: 0;
    padding: 0;
}
.vk-edu-rank-item {
    display: flex;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #f0f0f0;
}
.vk-edu-rank-1 .vk-edu-rank-number,
.vk-edu-rank-2 .vk-edu-rank-number,
.vk-edu-rank-3 .vk-edu-rank-number {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: #fff;
    font-weight: bold;
}
.vk-edu-rank-1 .vk-edu-rank-number {
    background: #ffd700;
}
.vk-edu-rank-2 .vk-edu-rank-number {
    background: #c0c0c0;
}
.vk-edu-rank-3 .vk-edu-rank-number {
    background: #cd7f32;
}
.vk-edu-rank-number {
    margin-right: 15px;
}
.vk-edu-user {
    flex: 1;
}
.vk-edu-score {
    font-weight: bold;
    color: #2271b1;
}

.vk-edu-user-stats {
    background: #fff;
    border: 1px solid #e0e0e0;
    padding: 20px;
    margin: 20px 0;
}
.vk-edu-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}
.vk-edu-stat-item {
    text-align: center;
    padding: 15px;
    background: #f9f9f9;
}
.vk-edu-stat-value {
    font-size: 28px;
    font-weight: bold;
    color: #2271b1;
}
.vk-edu-stat-label {
    margin-top: 5px;
    font-size: 14px;
    color: #666;
}

.vk-edu-course-list {
    margin: 20px 0;
}
.vk-edu-courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}
.vk-edu-course-card {
    background: #fff;
    border: 1px solid #e0e0e0;
    overflow: hidden;
}
.vk-edu-course-image {
    height: 150px;
    background: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
}
.vk-edu-course-icon {
    font-size: 60px;
    color: #ccc;
}
.vk-edu-course-content {
    padding: 15px;
}
.vk-edu-course-content h4 {
    margin: 0 0 10px;
    font-size: 16px;
}
.vk-edu-course-meta {
    margin-bottom: 10px;
    font-size: 12px;
}
.vk-edu-type,
.vk-edu-grade,
.vk-edu-subject {
    display: inline-block;
    padding: 2px 8px;
    margin-right: 5px;
    background: #e0e0e0;
    border-radius: 3px;
}
.vk-edu-course-btn {
    display: inline-block;
    padding: 8px 16px;
    background: #2271b1;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
}
.vk-edu-course-btn:hover {
    background: #135e96;
    color: #fff;
}

.vk-edu-game-slider {
    margin: 20px 0;
}
.vk-edu-games-slider {
    overflow-x: auto;
    padding-bottom: 15px;
}
.vk-edu-games-track {
    display: flex;
    gap: 20px;
}
.vk-edu-game-card {
    min-width: 250px;
    background: #fff;
    border: 1px solid #e0e0e0;
    overflow: hidden;
}
.vk-edu-game-image {
    height: 150px;
    background: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
}
.vk-edu-game-icon {
    font-size: 60px;
    color: #ccc;
}
.vk-edu-game-content {
    padding: 15px;
}
.vk-edu-game-content h4 {
    margin: 0 0 10px;
    font-size: 16px;
}
.vk-edu-game-btn {
    display: inline-block;
    padding: 8px 16px;
    background: #2271b1;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
}
.vk-edu-game-btn:hover {
    background: #135e96;
    color: #fff;
}

.vk-edu-questions-container {
    margin: 20px 0;
}
.vk-edu-question-item {
    background: #fff;
    border: 1px solid #e0e0e0;
    padding: 20px;
    margin-bottom: 20px;
}
.vk-edu-question-header {
    margin-bottom: 15px;
}
.vk-edu-question-number {
    display: inline-block;
    width: 30px;
    height: 30px;
    background: #2271b1;
    color: #fff;
    text-align: center;
    line-height: 30px;
    border-radius: 50%;
    margin-right: 10px;
}
.vk-edu-question-type {
    display: inline-block;
    padding: 2px 10px;
    background: #e0e0e0;
    border-radius: 3px;
    margin-right: 10px;
}
.vk-edu-difficulty {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 3px;
}
.vk-edu-difficulty.easy {
    background: #c6e1c6;
    color: #46b450;
}
.vk-edu-difficulty.medium {
    background: #fef5e7;
    color: #f0b849;
}
.vk-edu-difficulty.hard {
    background: #f5e6e8;
    color: #e65054;
}
.vk-edu-question-content {
    margin-bottom: 15px;
    font-size: 16px;
    line-height: 1.6;
}
.vk-edu-user-answer {
    width: 100%;
    min-height: 80px;
    padding: 10px;
    border: 1px solid #ccd0d4;
    border-radius: 4px;
    font-size: 14px;
}
.vk-edu-question-actions {
    margin: 15px 0;
}
.vk-edu-btn {
    padding: 8px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-right: 10px;
}
.vk-edu-btn-primary {
    background: #2271b1;
    color: #fff;
}
.vk-edu-btn-success {
    background: #46b450;
    color: #fff;
}
.vk-edu-btn-danger {
    background: #dc3232;
    color: #fff;
}
.vk-edu-correct-answer {
    padding: 15px;
    background: #f9f9f9;
    border-left: 3px solid #46b450;
}
.vk-edu-correct-answer h5 {
    margin: 10px 0 5px;
}

.vk-edu-no-data {
    text-align: center;
    padding: 40px;
    color: #666;
}
.vk-edu-login-required {
    text-align: center;
    padding: 20px;
    background: #fff8e5;
    border: 1px solid #dba617;
}