body {
    min-height: 100vh;      
    margin: 0;
    display: flex;
    flex-direction: column;
    font-family: 'Montserrat', sans-serif;
    background-color: #f8f9fa;
}


.header {
    background-color: #2e7d32;
    color: white;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
}

.logo {
    height: 70px;
    margin-right: 10px;
}

.navbar ul {
    list-style: none;
    display: flex;
    gap: 12px;
    margin: 0;
    padding: 0;
}

.navbar li { display: inline; }

.navbar a {
    color: white;
    text-decoration: none;
    font-weight: 600;
}

.navbar a:hover { text-decoration: underline; }


.container {
    flex: 1;              
    padding: 50px 20px;
    text-align: center;
}

.grid {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(3, 1fr);
}

.box {
    background-color: #e8f5e9;
    padding: 30px;
    border-radius: 8px;
    font-weight: 600;
}

.box a { color: #2e7d32; text-decoration: none; }

.btn {
  background: darkgreen;
}


.footer {
    background-color: #2e7d32;
    color: white;
    text-align: center;
    padding: 10px;
}


/* MEDIA QUERIES */

/* Tablets (768px и выше, но меньше 1024px) */
@media (max-width: 1024px) {
    .grid {
        grid-template-columns: repeat(2, 1fr); /* две колонки на планшете */
    }

    .container h1 {
        font-size: 2rem;
    }

    .container h2 {
        font-size: 1rem;
    }

    .header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .navbar ul {
        flex-wrap: wrap;
        gap: 8px;
    }

    .logo {
        height: 60px;
    }
}

/* Mobile (меньше 768px) */
@media (max-width: 767px) {
    .grid {
        grid-template-columns: 1fr; /* одна колонка на мобильных */
    }

    .container h1 {
        font-size: 1.5rem;
    }

    .container h2 {
        font-size: 0.9rem;
    }

    .header {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 10px;
    }

    .navbar ul {
        flex-direction: column;
        align-items: center;
        gap: 5px;
    }

    .logo {
        height: 50px;
    }

    .footer {
        font-size: 0.9rem;
        padding: 8px;
    }

    .box {
        padding: 20px;
        font-size: 0.9rem;
    }
}