.usage-section {
    /*background: #f7faff;*/
    padding: 30px 0;
    text-align: center;
}

.usage-section h2 {
    font-size: 26px;
    font-weight: 700;
    color: #003f88;
    margin-bottom: 16px;
}

.usage-section p {
    font-size: 16px;
    color: #333;
    max-width: 700px;
    margin: 0 auto 40px;
    line-height: 1.5;
}

.usage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 28px;
    margin-bottom: 40px;
}

.usage-card {
    display: block; /* ← DŮLEŽITÉ: celá dlaždice je odkaz */
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 10px;
    margin: 20px;
    padding: 0px 0px 20px 0px;
    box-shadow: 0 3px 8px rgba(0,0,0,0.08);
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.usage-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.12);
}

.usage-card img {
    width: 100%;
    height: 140px;
    object-fit: cover;
    border-radius: 6px;
    margin-bottom: 10px;
}

.usage-card h3 {
    font-size: 20px;
    color: #003f88;
    font-weight: 700;
    margin-bottom: 6px;
}

.usage-card span {
    font-size: 16px;
    color: #555;
}

/* CTA tlačítko */
.usage-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 24px;
    background: linear-gradient(90deg, #005bbb 0%, #0077cc 100%);
    color: #fff;
    border-radius: 6px;
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    transition: background 0.2s ease, transform 0.1s ease;
}

.usage-cta:hover {
    background: linear-gradient(90deg, #004999 0%, #0066b3 100%);
    transform: translateY(-1px);
}