@media (max-width: 900px) {

    .hero-content {
        grid-template-columns: 1fr;
    }

    .hero-card {
        min-height: 300px;
    }

    .calculator-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}


@media (max-width: 600px) {

    .nav-container {
        flex-direction: column;
        padding: 15px 0;
        gap: 12px;
    }

    nav {
        gap: 15px;
        font-size: 14px;
    }

    .hero {
        padding: 60px 0;
    }

    .hero h1 {
        font-size: 42px;
    }

    .search-box {
        flex-direction: column;
        gap: 7px;
    }

    .search-box button {
        padding: 13px;
    }

    .calculator-grid,
    .category-grid {
        grid-template-columns: 1fr;
    }

    .calculator-wrapper {
        padding: 25px;
    }
}