*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}
.container{
    width: 100%;
    height: 100vh;
    background: #141a34;
    display: flex;
    align-items: center;
    justify-content: center;
}

.useful-links{
    position: absolute;
    top: 5%;
    right: 5%;

}
.useful-links a{
    display: block;
    color: #fff;
    text-decoration: none;
}

.container form{
    width: 90%;
    max-width: 500px;
    padding: 50px 30px 20px;
    background: #fff;
    border-radius: 4px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
    position: relative;
}
.fa-paper-plane{
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%,-50%);
    background: #fff;
    font-size: 26px;
    padding: 20px;
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

.input-group{
    width: 100%;
    display: flex;
    align-items: center;
    margin: 10px 0;
    position: relative;
}
.input-group label{
    flex-basis: 28%;
}
.input-group input, .input-group textarea{
    flex-basis: 68%;
    background: transparent;
    border: 0;
    outline: 0;
    padding: 10px 0;
    border-bottom: 1px solid #999;
    color: #333;
    font-size: 16px;
}
::placeholder{
    font-size: 14px;
}

form button{
    background: #141a34;
    color: #fff;
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.7);
    padding: 10px 40px;
    outline: 0;
    cursor: pointer;
    display: block;
    margin: 30px auto 10px;
}

.input-group span{
    position: absolute;
    bottom: 12px;
    right: 17px;
    font-size: 14px;
    color: red;
}

#submit-error{
    color: red;
}

.input-group span i{
    color: seagreen;
}

/* 📱 Mobile Devices (up to 480px) */
@media screen and (max-width: 480px) {
    body {
        padding: 10px;
        font-size: 14px;
    }

    .container {
        width: 95%;
        padding: 15px;
        margin: auto;
    }

    h1 {
        font-size: 20px;
        text-align: center;
    }

    form {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    input, button {
        width: 100%;
        font-size: 14px;
        padding: 10px;
    }

    label {
        font-size: 14px;
    }
}


@media screen and (min-width: 481px) and (max-width: 768px) {
    .container {
        width: 80%;
        padding: 20px;
    }

    h1 {
        font-size: 24px;
    }

    input, button {
        font-size: 16px;
        padding: 12px;
    }
}


@media screen and (min-width: 769px) and (max-width: 1024px) {
    .container {
        width: 70%;
    }
}