@media (max-width: 768px) {
    .hero {
        flex-direction: column-reverse;
        justify-content: flex-start;
        padding-top: 100px;
        min-height: auto;
    }

    .hero-content {
        text-align: center;
        margin-bottom: 2rem;
    }

    .hero-content h1 {
        font-size: 2.8rem;
    }

    .hero-image {
        justify-content: center;
    }

    .hero-image img {
        max-height: 40vh;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    header {
        padding: 10px 5%;
    }

    .logo {
        font-size: 1.2rem;
    }

    .btn-entrar {
        padding: 6px 16px;
        font-size: 0.85rem;
    }

    .hero {
        padding-top: 80px;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .about-section {
        padding: 60px 5%;
    }

    .about-container h2 {
        font-size: 1.8rem;
    }

    .about-container h3 {
        font-size: 1.3rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 400px) {
    header {
        padding: 8px 4%;
    }

    .logo {
        font-size: 1.1rem;
    }

    .btn-entrar {
        padding: 5px 12px;
        font-size: 0.75rem;
    }

    .hero-content h1 {
        font-size: 1.9rem;
    }
}