* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background: #ffffff;
    color: #1f1f1f;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-header {
    text-align: center;
    padding: 45px 20px 25px;
}

.logo-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 15px;
}

.main-logo {
    max-width: 250px;
    height: auto;
}

.main-header h1 {
    font-size: 2.4rem;
    color: #111111;
    margin-bottom: 8px;
}

.subtitle {
    font-size: 1.05rem;
    color: #555555;
}

.sites-container {
    width: 100%;
    max-width: 1050px;
    margin: 25px auto 50px;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 25px;
}

.site-card {
    display: block;
    text-decoration: none;
    color: #1f1f1f;
    background: #ffffff;
    border: 1px solid #e5e5e5;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.08);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.site-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.14);
    border-color: #222222;
}

.site-card img {
    width: 100%;
    height: 170px;
    object-fit: contain;
    background: #f8f8f8;
    padding: 25px;
    display: block;
}

.site-info {
    padding: 22px;
    text-align: center;
}

.site-info h2 {
    font-size: 1.4rem;
    margin-bottom: 8px;
    color: #111111;
}

.site-info p {
    font-size: 0.96rem;
    line-height: 1.5;
    color: #555555;
}

.main-footer {
    margin-top: auto;
    text-align: center;
    padding: 22px 15px;
    font-size: 0.9rem;
    color: #666666;
    border-top: 1px solid #eeeeee;
}

/* Celulares */
@media (max-width: 600px) {
    .main-header {
        padding-top: 25px;
    }

    .main-logo {
        max-width: 250px;
    }

    .main-header h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 0.95rem;
    }

    .site-card img {
        height: 145px;
        padding: 20px;
    }

    .site-info {
        padding: 18px;
    }
}