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

a,h1,h2,h3,h4,h5,h6 {
    font-family: "Oswald", serif;
}

p,strong,span,label,button {
    line-height: 1.3;
}

a {
    text-decoration: none;
    cursor: pointer;
}

span {
    cursor: pointer;
}

span.line {
    width: 75px;
    height: 4px;
    background-color: #702E3D;
    display: block;
}

/* ----------------------------------------- */
/*                 HEADER                    */
/* ----------------------------------------- */
header {
    margin: 0 auto;
}

/* ----------------------------------------- */
/*              MAIN ARTICLE                 */
/* ----------------------------------------- */
main.article {
    padding: 2rem;
}

.contact {
    background-color: #fff;
    width: 70vw;
    margin: 0 auto;
}

h1 {
    font-size: 2.8rem;
    line-height: 1.3;
}

main.article .contact-info h2 {
    font-size: 1.8rem;
    color: #000;
    margin-bottom: 2rem;
    margin-top: 1rem;
}

main.article .contact-info p {
    font-size: 1.1rem;
    color: #000;
    font-weight: 500;
    margin: .5rem 0 2rem 0;
}

main.article .form-container input {
    width: 100%;
    padding: .5rem;
    margin-bottom: 1rem;
    border: 2px solid #ccc;
    border-radius: 12px;
    font-size: .9rem;
    font-weight: 500;
    cursor: pointer;
}

main.article .form-container .form-group label {
    margin-left: .4rem;
    font-weight: 600;
}

.contact-info {
    padding: 2rem;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

/* ----------------------------------------- */
/*                PREVIEW                    */
/* ----------------------------------------- */
.preview {
    padding-top: 2rem;
    font-size: 1.1rem;
    color: #000;
}

 #signature_preview {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin: 1rem 0;
    box-shadow: 0 0 10px #d1d1d1;
    border: 1px dashed #ccc;
    padding: 2rem;
}

#inner-border {
    width: 100%;
    max-width: 300px;
    max-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border: solid 1px #8a8a8a;
    padding: 1rem;
    margin: 0.5rem;
}

.preview span {
    display: inline-block;
    font-size: 1rem;
}

.btn {
    padding: 10px 15px;
    background: #702E3D;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    display: inline-block;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.btn:hover {
    background: #5a252f;
}

/* ----------------------------------------- */
/*                  MEDIA                    */
/* ----------------------------------------- */
@media (min-width: 1280px) {
     .preview {
         padding: 0rem 2rem 2rem 2rem;
    }
    main.article .contact {
         display: grid;
         grid-template-columns: 1fr 1fr;
        /* gap: 2rem;
         */
    }
    main.article {
         padding: 2rem;
    }
}

@media ( max-width: 435px ) {
    h1 {
        font-size: 35px;
    }

    .contact {
        width: 100%;
    }

    .contact-info {
        padding: 1rem;
    }

    .contact-info h2, p {
        text-align: center;
    }

    #signature_preview {
        padding: 0.5rem;
        grid-template-columns: 1fr;
    }

    #inner-border {
        width: 280px;
    }

    .preview h3 {
        text-align: center;
    }

    .btn {
        text-align: center;
        margin: 0.5rem;
    }
}