/* =====================================================
Vietnam Payment Gateway
Article Page CSS

Compatible:
article.html
article.js

Style:
FinTech Dark Blue
SEO News Article System

===================================================== */


/* =====================
RESET
===================== */


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



html {
    scroll-behavior: smooth;
}



body {
    font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    background: #020817;
    color: #dcecff;
    line-height: 1.9;
    overflow-x: hidden;
}




    body::before {
        content: "";
        position: fixed;
        inset: 0;
        background: radial-gradient( circle at top right, rgba(0,216,255,.18), transparent 40% ), radial-gradient( circle at bottom left, rgba(0,120,255,.18), transparent 45% );
        z-index: -2;
    }






/* =====================
GLOBAL
===================== */


a {
    text-decoration: none;
    color: inherit;
}



h1, h2, h3 {
    color: #fff;
}



p {
    color: #bdd2ec;
    font-size: 17px;
}



section {
    position: relative;
}







/* =====================
READING BAR
===================== */


.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    width: 0;
    background: linear-gradient( 90deg, #00d8ff, #0078ff );
    z-index: 9999;
}










/* =====================
HEADER
===================== */


.header {
    height: 80px;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 0 8%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(2,8,23,.75);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0,216,255,.2);
    z-index: 999;
}



.logo {
    font-size: 28px;
    font-weight: 900;
    color: #fff;
}



    .logo span {
        color: #00d8ff;
        text-shadow: 0 0 20px #00d8ff;
    }




nav {
    display: flex;
    gap: 35px;
}



    nav a {
        color: #dcecff;
        position: relative;
        transition: .3s;
    }



        nav a:hover {
            color: #00d8ff;
        }



        nav a::after {
            content: "";
            position: absolute;
            bottom: -10px;
            left: 0;
            width: 0;
            height: 2px;
            background: #00d8ff;
            transition: .3s;
        }



        nav a:hover::after {
            width: 100%;
        }



.mobile-btn {
    display: none;
    font-size: 30px;
    color: #fff;
    cursor: pointer;
}









/* =====================
ARTICLE HERO
===================== */


.article-banner {
    margin-top: 80px;
    height: 560px;
    display: flex;
    align-items: center;
    padding: 0 10%;
    background: linear-gradient( 120deg, #020b20, #03447d );
    overflow: hidden;
}



    .article-banner::before {
        content: "";
        position: absolute;
        right: -200px;
        top: 60px;
        width: 650px;
        height: 650px;
        background: radial-gradient( circle, rgba(0,216,255,.45), transparent 70% );
        filter: blur(40px);
    }




.article-banner-content {
    position: relative;
    z-index: 2;
    max-width: 950px;
}



.article-tag {
    display: inline-block;
    padding: 8px 25px;
    border-radius: 30px;
    background: rgba(0,216,255,.15);
    border: 1px solid rgba(0,216,255,.5);
    color: #00d8ff;
    margin-bottom: 25px;
}




.article-banner h1 {
    font-size: 52px;
    line-height: 1.4;
    margin-bottom: 30px;
}




.article-banner p {
    font-size: 20px;
    color: #d9ebff;
}









/* =====================
BREADCRUMB
===================== */


.breadcrumb {
    padding: 25px 8%;
    background: #030f25;
    color: #9ab5d8;
}



    .breadcrumb a:hover {
        color: #00d8ff;
    }







/* =====================
ARTICLE LAYOUT
===================== */


.article-container {
    max-width: 1400px;
    margin: auto;
    padding: 80px 5%;
    display: grid;
    grid-template-columns: 1fr 330px;
    gap: 45px;
}







/* =====================
ARTICLE CONTENT
===================== */


.article-content {
    background: rgba(255,255,255,.04);
    border: 1px solid rgba(0,216,255,.15);
    border-radius: 25px;
    padding: 45px;
}



.article-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 35px;
}



    .article-meta span {
        padding: 8px 20px;
        border-radius: 30px;
        background: rgba(0,216,255,.15);
        color: #00d8ff;
        font-size: 14px;
    }






.article-content h2 {
    font-size: 32px;
    margin: 45px 0 25px;
}



.article-content h3 {
    font-size: 23px;
    margin: 35px 0 15px;
    color: #00d8ff;
}




.article-content ul {
    margin: 25px;
}



.article-content li {
    margin: 12px;
    color: #c8dcf5;
}









/* =====================
ARTICLE TOC
===================== */


.article-toc {
    padding: 25px;
    margin-bottom: 40px;
    border-radius: 20px;
    background: rgba(0,216,255,.06);
    border: 1px solid rgba(0,216,255,.2);
}



    .article-toc h3 {
        margin-bottom: 20px;
    }



    .article-toc a {
        display: block;
        color: #bdd7f5;
        margin: 10px 0;
    }



        .article-toc a:hover {
            color: #00d8ff;
        }









/* =====================
CTA
===================== */


.article-cta {
    margin-top: 60px;
    padding: 45px;
    text-align: center;
    border-radius: 25px;
    background: linear-gradient( 135deg, #00528c, #020817 );
}



    .article-cta h2 {
        font-size: 35px;
    }



    .article-cta a {
        display: inline-block;
        margin-top: 25px;
        padding: 15px 45px;
        border-radius: 50px;
        background: linear-gradient( 90deg, #00d8ff, #0078ff );
        color: white;
    }










/* =====================
SIDEBAR
===================== */


.sidebar-box {
    padding: 30px;
    margin-bottom: 30px;
    background: rgba(255,255,255,.05);
    border-radius: 20px;
    border: 1px solid rgba(0,216,255,.2);
}



    .sidebar-box h3 {
        margin-bottom: 20px;
    }



    .sidebar-box a {
        display: block;
        padding: 12px 0;
        border-bottom: 1px solid rgba(255,255,255,.1);
        color: #cce2ff;
    }



        .sidebar-box a:hover {
            color: #00d8ff;
        }









/* =====================
ARTICLE NAV
===================== */


.article-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 35px;
    gap: 20px;
}



    .article-nav a {
        padding: 18px 25px;
        background: rgba(255,255,255,.05);
        border-radius: 15px;
        color: #00d8ff;
    }









/* =====================
FAQ
===================== */


.faq {
    padding: 90px 8%;
    background: #030f25;
}



    .faq h2 {
        text-align: center;
        font-size: 38px;
        margin-bottom: 40px;
    }



.faq-item {
    max-width: 1000px;
    margin: 25px auto;
    padding: 30px;
    background: rgba(255,255,255,.05);
    border-radius: 20px;
    border: 1px solid rgba(0,216,255,.2);
}




    .faq-item h3 {
        font-size: 21px;
        margin-bottom: 15px;
    }











/* =========================
FOOTER
========================= */


footer {
    background: #010511;
    text-align: center;
    padding: 60px 20px;
    border-top: 1px solid rgba(0,200,255,.15);
}



    footer h3 {
        color: white;
        font-size: 28px;
    }



    footer p {
        color: #8fa9c7;
    }



.footer-link {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin: 30px 0;
}



    .footer-link a:hover {
        color: #00d8ff;
    }








/* =====================
TELEGRAM
===================== */


.telegram {
    position: fixed;
    right: 30px;
    bottom: 30px;
    padding: 15px 30px;
    border-radius: 50px;
    background: linear-gradient( 135deg, #00d8ff, #0078ff );
    color: white;
    z-index: 999;
    box-shadow: 0 0 35px rgba(0,216,255,.6);
}









/* =====================
REVEAL
===================== */


.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: .8s;
}



    .reveal.show {
        opacity: 1;
        transform: none;
    }








/* =====================
MOBILE
===================== */


@media(max-width:900px) {


    .article-container {
        grid-template-columns: 1fr;
    }



    .article-sidebar {
        display: none;
    }



    .article-banner {
        height: 500px;
        padding: 0 25px;
    }



        .article-banner h1 {
            font-size: 34px;
        }



    .header {
        padding: 0 20px;
    }



    nav {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background: #031326;
        flex-direction: column;
        text-align: center;
        padding: 30px;
    }



        nav.active {
            display: flex;
        }



    .mobile-btn {
        display: block;
    }



    .article-content {
        padding: 25px;
    }



    .article-nav {
        flex-direction: column;
    }
}