.su-course-wrapper {
    padding: 40px 20px;
}

.su-course-filter {
    display: flex;
    gap: 12px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.su-course-filter input {
    flex: 1;
    min-width: 240px;
    padding: 14px;
    border-radius: 12px;
    border: 1px solid #ddd;
}

.su-course-filter button {
    padding: 14px 24px;
    border: none;
    border-radius: 12px;
    background: #0f172a;
    color: white;
    cursor: pointer;
}

.su-course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.su-course-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
    transition: 0.3s ease;
}

.su-course-card:hover {
    transform: translateY(-6px);
}

.su-course-image img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.su-course-content {
    padding: 20px;
}

.su-course-content h3 {
    margin-bottom: 12px;
}

.su-course-content p {
    color: #555;
    margin-bottom: 18px;
}

.su-course-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.su-btn-primary,
.su-btn-secondary {
    text-decoration: none;
    padding: 12px 18px;
    border-radius: 10px;
    display: inline-block;
    font-weight: 600;
}

.su-btn-primary {
    background: #15803d;
    color: white;
}

.su-btn-secondary {
    background: #e2e8f0;
    color: #111827;
}