.scroll-section {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    padding: 60px 20px;
    background: #f9f9f9;
    margin: 20px 0;
}

.scroll-section:nth-child(even) {
    background: #fff;
}

.scroll-section.visible {
    opacity: 1;
    transform: translateY(0);
}

.features-grid,
.steps-grid,
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.feature-item,
.step-item {
    text-align: center;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.step-number {
    background: #4CAF50;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-bottom: 15px;
}

.testimonial-item {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    font-style: italic;
}

.testimonial-item cite {
    display: block;
    margin-top: 10px;
    font-style: normal;
    font-weight: bold;
    text-align: right;
}

h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #333;
}

h3 {
    color: #4CAF50;
    margin-bottom: 10px;
}

.btn.disabled {
    background-color: #cccccc !important;
    color: #666666 !important;
    cursor: not-allowed;
    opacity: 0.6;
    pointer-events: none;
}

@media (max-width: 768px) {
    .features-grid,
    .steps-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}