:root{
    --article-bg:#F4F7FB;
    --article-white:#FFFFFF;

    --article-navy:#1F3B73;
    --article-navy-dark:#162B55;

    --article-blue:#2E6FF2;
    --article-blue-light:#EDF4FF;

    --article-green:#2DB36C;

    --article-text:#2D3748;
    --article-text-light:#64748B;

    --article-border:#D8E2F0;
}

/*************************
PAGE
*************************/

.article-page{
    background:var(--article-bg);
    padding:70px 20px;
}

.seo-article{
    max-width:1100px;
    margin:auto;
    margin-top:60px;
    background:var(--article-white);
    padding:70px;
    border-radius:20px;
    border:1px solid var(--article-border);
    box-shadow:0 15px 40px rgba(31,59,115,.08);
}

/*************************
TYPOGRAPHY
*************************/

.seo-article h1{
    font-size:2.7rem;
    line-height:1.2;
    font-weight:700;
    color:var(--article-navy);
    margin:0 0 20px;
    letter-spacing:-0.5px;
}

.seo-article .lead{
    font-size:1.15rem;
    line-height:1.9;
    color:var(--article-text-light);
    margin-bottom:45px;
}

.seo-article h2{
    font-size:2rem;
    margin:60px 0 30px;
    padding-left:20px;
    position:relative;
    color:var(--article-navy);
    font-weight:700;
}

.seo-article h2:first-of-type{
    margin-top:20px;
}

.seo-article h2::before{
    content:"";
    position:absolute;
    left:0;
    top:5px;
    width:5px;
    height:80%;
    border-radius:20px;
    background:var(--article-blue);
}

.seo-article h3{
    color:var(--article-navy);
    font-size:1.3rem;
    margin-bottom:15px;
    font-weight:600;
}

.seo-article p{
    font-size:1.05rem;
    line-height:1.9;
    color:var(--article-text);
    margin-bottom:20px;
}

.seo-article strong{
    color:var(--article-navy);
}

/*************************
BLOCKQUOTE
*************************/

.seo-article blockquote{
    margin:50px 0;
    padding:30px 35px;
    background:var(--article-blue-light);
    border-left:5px solid var(--article-blue);
    border-radius:14px;
    color:var(--article-navy);
    font-size:1.2rem;
    line-height:1.8;
    font-style:italic;
}

/*************************
STEPS
*************************/

.seo-article .steps{
    display:flex;
    flex-direction:column;
    gap:25px;
    margin:50px 0;
}

.seo-article .step{
    display:flex;
    gap:25px;
    padding:25px;
    background:#fff;
    border:1px solid var(--article-border);
    border-radius:16px;
    transition:.3s;
}

.seo-article .step:hover{
    transform:translateY(-4px);
    box-shadow:0 12px 30px rgba(31,59,115,.08);
}

.seo-article .step-number{
    width:58px;
    height:58px;
    min-width:58px;
    border-radius:50%;
    background:var(--article-blue);
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:1.4rem;
    font-weight:700;
}

.seo-article .step-content{
    flex:1;
}

/*************************
LISTS
*************************/

.seo-article .article-ul{
    padding-left:28px;
    margin:20px 0;
}

.seo-article .article-ul li{
    margin-bottom:12px;
    color:var(--article-text);
    line-height:1.7;
}

.seo-article .article-ul li::marker{
    color:var(--article-blue);
}

/*************************
INFO BOX
*************************/

.seo-article .info-box{
    margin:60px 0;
    padding:30px;
    background:#F7FBFF;
    border:1px solid #BFD8FF;
    border-left:5px solid var(--article-green);
    border-radius:16px;
}

.seo-article .info-box h3{
    margin-top:0;
}

/*************************
CARDS
*************************/

.seo-article .tips-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
    gap:25px;
    margin-top:35px;
}

.seo-article .tip-card{
    background:#fff;
    border:1px solid var(--article-border);
    border-top:4px solid var(--article-blue);
    border-radius:16px;
    padding:25px;
    transition:.3s;
}

.seo-article .tip-card:hover{
    transform:translateY(-5px);
    border-top-color:var(--article-green);
    box-shadow:0 15px 35px rgba(31,59,115,.10);
}

.seo-article .tip-card h3{
    margin-top:0;
}

/*************************
LINKS
*************************/

.seo-article .article-link{
    display:block;
    text-decoration:none;
    color:inherit;
    padding:20px;
    border-radius:12px;
    transition:.3s;
}

.seo-article .article-link:hover{
    background:var(--article-blue-light);
}

.seo-article .article-link:hover h3{
    color:var(--article-blue);
}

/*************************
RESPONSIVE
*************************/

@media (max-width:768px){

    .article-page{
        padding:35px 15px;
    }

    .seo-article{
        padding:35px 25px;
    }

    .seo-article h1{
        font-size:2rem;
    }

    .seo-article .lead{
        font-size:1.05rem;
        margin-bottom:35px;
    }

    .seo-article h2{
        font-size:1.6rem;
        margin:45px 0 25px;
    }

    .seo-article h3{
        font-size:1.15rem;
    }

    .seo-article blockquote{
        padding:25px;
        font-size:1.05rem;
    }

    .seo-article .step{
        flex-direction:column;
        align-items:flex-start;
    }

    .seo-article .step-number{
        width:48px;
        height:48px;
        min-width:48px;
        font-size:1.2rem;
    }

}


/*************************
INVOICE
*************************/

.seo-article .invoice-meta,
.seo-article .invoice-info,
.seo-article .invoice-table,
.seo-article .invoice-total{
    width:100%;
    border-collapse:collapse;
    margin:25px 0;
}

.seo-article .invoice-meta td{
    border:none;
    padding:10px 0;
    vertical-align:top;
}

.seo-article .invoice-meta td:last-child{
    text-align:right;
}

.seo-article .invoice-info td{
    border:1px solid var(--article-border);
    padding:14px 16px;
}

.seo-article .invoice-info td:first-child{
    width:240px;
    background:var(--article-blue-light);
    font-weight:600;
    color:var(--article-navy);
}

.seo-article .invoice-table{
    margin-top:30px;
}

.seo-article .invoice-table th{
    background:var(--article-navy);
    color:#fff;
    padding:14px;
    border:1px solid var(--article-navy);
    text-align:center;
    font-weight:600;
}

.seo-article .invoice-table td{
    border:1px solid var(--article-border);
    padding:14px;
    min-height:48px;
    height:48px;
}

.seo-article .invoice-table tbody tr:nth-child(even){
    background:#fafcff;
}

.seo-article .invoice-table td:nth-child(1),
.seo-article .invoice-table td:nth-child(3),
.seo-article .invoice-table td:nth-child(4){
    text-align:center;
}

.seo-article .invoice-table td:nth-child(5),
.seo-article .invoice-table td:nth-child(6){
    text-align:right;
}

.seo-article .invoice-total{
    width:360px;
    margin-left:auto;
    margin-top:35px;
}

.seo-article .invoice-total td{
    border:1px solid var(--article-border);
    padding:14px 18px;
}

.seo-article .invoice-total tr:last-child{
    background:var(--article-blue-light);
    font-size:1.1rem;
    font-weight:700;
}

.seo-article .signature{
    margin-top:60px;
    padding-top:30px;
    border-top:1px solid var(--article-border);
}

.seo-article .signature p{
    margin:10px 0;
}

@media (max-width:768px){

    .seo-article .invoice-meta td{
        display:block;
        width:100%;
        text-align:left !important;
    }

    .seo-article .invoice-info td:first-child{
        width:150px;
    }

    .seo-article .invoice-table{
        display:block;
        overflow-x:auto;
        white-space:nowrap;
    }

    .seo-article .invoice-total{
        width:100%;
    }

}



.invoice-form{
    display:grid;
    grid-template-columns:220px 1fr;
    gap:12px 20px;
    margin-bottom:30px;
}

.invoice-form label{
    font-weight:600;
    color:var(--article-navy);
}

.invoice-form input,
.invoice-head input,
.invoice-total input,
.invoice-table input{
    width:100%;
    padding:10px 12px;
    border:1px solid var(--article-border);
    border-radius:8px;
    font:inherit;
    background:#fff;
    box-sizing:border-box;
}

.invoice-head{
    display:flex;
    justify-content:space-between;
    gap:20px;
    margin-bottom:35px;
}

.invoice-head>div{
    flex:1;
}

.invoice-head label{
    display:block;
    margin-bottom:6px;
    font-weight:600;
}

.invoice-table input{
    border:none;
    padding:6px;
    background:transparent;
}

.invoice-table input:focus{
    outline:1px solid var(--article-blue);
    background:#fff;
}

.invoice-total{
    width:350px;
    margin-left:auto;
    display:grid;
    grid-template-columns:120px 1fr;
    gap:12px;
    margin-top:30px;
}

@media print{

    button{
        display:none;
    }

    input{
        border:none !important;
        outline:none !important;
        box-shadow:none !important;
        background:transparent !important;
        padding:0 !important;
    }

    body{
        background:#fff;
    }

}