@media (max-width: 900px) {
    section {
        max-width: 95vw;
        padding: 15px 5vw;
    }
}

@media (max-width: 650px) {
    nav {
        padding: 7px 0;
        font-size: 16px;
    }
    nav a {
        display: block;
        margin: 7px auto;
        font-size: 18px;
        width: 92vw;
        text-align: center;
    }
    section {
        margin: 14px auto;
        padding: 13px 3vw;
        border-radius: 7px;
        box-shadow: 0 1px 6px #22346c1a;
    }
    h1, h2 {
        font-size: 1.15em;
    }
    ul {
        padding-right: 10px;
        font-size: 1em;
    }
    input[type="text"], input[type="email"], select, textarea {
        font-size: 15px;
        padding: 8px 8px;
    }
    button[type="submit"] {
        width: 100%;
        font-size: 15px;
        padding: 9px 0;
    }
    footer {
        font-size: 12.5px;
        padding: 12px 0;
        border-radius: 0 0 9px 9px;
    }
}

/* للجوال الصغير جداً */
@media (max-width: 420px) {
    nav {
        font-size: 15px;
    }
    nav a {
        padding: 8px 5px;
        font-size: 16px;
        width: 96vw;
    }
    section {
        padding: 9px 1vw;
    }
    h1, h2 {
        font-size: 1em;
    }
    input[type="text"], input[type="email"], select, textarea {
        font-size: 14px;
    }
}