/* --- How to Use Section --- */
.how-to-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 5rem 0;
    margin-top: 4rem;
    border-top: 3px solid var(--accent-blue);
    position: relative;
    overflow: hidden;
}

.how-to-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.05), transparent 60%),
        radial-gradient(circle at bottom left, rgba(59, 130, 246, 0.05), transparent 60%);
    pointer-events: none;
}

.how-to-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

.how-to-title {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.how-to-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 4rem;
    font-size: 1.2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    margin-top: 3rem;
}

.step-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.step-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-blue), #818cf8);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.step-card:hover::before {
    transform: scaleX(1);
}

.step-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    border-color: var(--accent-blue);
}

.step-number {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--accent-blue) 0%, #60a5fa 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    flex-shrink: 0;
    box-shadow: 0 4px 6px rgba(59, 130, 246, 0.3);
    position: relative;
}

.step-number::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-blue), #60a5fa);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.step-card:hover .step-number::after {
    opacity: 0.3;
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 0.3;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.5;
    }
}

.step-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
    line-height: 1.3;
}

.step-description {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1.05rem;
    flex-grow: 1;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .steps-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .how-to-title {
        font-size: 2rem;
    }

    .how-to-subtitle {
        font-size: 1.1rem;
    }

    .how-to-section {
        padding: 3rem 0;
    }

    .how-to-container {
        padding: 0 1.5rem;
    }

    .step-card {
        padding: 2rem;
    }
}