/* =====================================================
FINTECH DARK PRO STYLE
Vietnam Payment Gateway
===================================================== */


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


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


html {
    scroll-behavior: smooth;
}


body {
    font-family: "Microsoft YaHei", "Inter", Arial, sans-serif;
    background: radial-gradient( circle at 20% 0%, #163b72 0, transparent 35% ), radial-gradient( circle at 80% 20%, #003c75 0, transparent 35% ), #020611;
    color: #dbe9ff;
    line-height: 1.8;
    overflow-x: hidden;
}



    body::before {
        content: "";
        position: fixed;
        inset: 0;
        background-image: linear-gradient( rgba(0,168,255,.04) 1px, transparent 1px ), linear-gradient( 90deg, rgba(0,168,255,.04) 1px, transparent 1px );
        background-size: 50px 50px;
        pointer-events: none;
        z-index: -1;
    }





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



img {
    max-width: 100%;
}





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


.header {
    height: 82px;
    padding: 0 8%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(3,10,25,.75);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(0,168,255,.25);
    position: relative;
    z-index: 100;
}





.logo {
    font-size: 27px;
    font-weight: 900;
    color: #fff;
}



    .logo span {
        color: #00d9ff;
        text-shadow: 0 0 15px #00d9ff;
    }






.nav-menu {
    display: flex;
    gap: 40px;
}



    .nav-menu a {
        color: #a9bddb;
        transition: .3s;
        position: relative;
    }



        .nav-menu a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -8px;
            width: 0;
            height: 2px;
            background: #00d9ff;
            transition: .3s;
        }




        .nav-menu a:hover::after,
        .nav-menu .active::after {
            width: 100%;
        }



        .nav-menu a:hover,
        .nav-menu .active {
            color: #00d9ff;
        }




.mobile-btn {
    display: none;
    color: #00d9ff;
    cursor: pointer;
}







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


.contact-hero {
    height: 650px;
    position: relative;
    background: linear-gradient( 120deg, rgba(1,8,25,.95), rgba(0,110,220,.65) ), url("../images/contact-bg.jpg");
    background-size: cover;
    background-position: center;
}





    .contact-hero::after {
        content: "";
        position: absolute;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 120px;
        background: linear-gradient( transparent, #020611 );
    }





.hero-overlay {
    height: 100%;
    display: flex;
    align-items: center;
    padding: 0 8%;
}



.hero-content {
    max-width: 820px;
}



.hero-tag {
    padding: 8px 25px;
    border-radius: 50px;
    display: inline-block;
    color: #00e5ff;
    background: rgba(0,168,255,.12);
    border: 1px solid rgba(0,168,255,.5);
}



.hero-content h1 {
    margin-top: 25px;
    font-size: 56px;
    line-height: 1.25;
    color: #fff;
}



.hero-content p {
    margin-top: 25px;
    color: #c6dbfa;
    font-size: 19px;
}




.hero-btn {
    margin-top: 35px;
    padding: 15px 45px;
    display: inline-block;
    border-radius: 50px;
    background: linear-gradient( 90deg, #008cff, #00e5ff );
    box-shadow: 0 0 35px rgba(0,168,255,.5);
}





/* =====================================================
SECTION
===================================================== */


section {
    padding: 90px 8%;
}



.section-title {
    text-align: center;
    max-width: 850px;
    margin: 0 auto 60px;
}



    .section-title h2 {
        color: white;
        font-size: 40px;
    }





    .section-title p {
        color: #9eb3d1;
    }







/* =====================================================
GLASS CARD
===================================================== */


.contact-grid,
.channel-box,
.cooperation-grid {
    display: grid;
    gap: 30px;
}




.contact-grid {
    grid-template-columns: repeat(3,1fr);
}



.contact-card,
.channel-item,
.cooperation-card,
.faq-item,
.value-list div {
    background: linear-gradient( 145deg, rgba(255,255,255,.08), rgba(0,168,255,.03) );
    border: 1px solid rgba(0,168,255,.2);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    transition: .35s;
}





    .contact-card:hover,
    .channel-item:hover,
    .cooperation-card:hover {
        transform: translateY(-10px);
        border-color: #00d9ff;
        box-shadow: 0 0 40px rgba(0,168,255,.35);
    }





    .contact-card h3,
    .cooperation-card h3 {
        color: #fff;
    }



    .contact-card p {
        color: #9fb7da;
    }







/* =====================================================
CHANNEL
===================================================== */


.contact-channel {
    background: linear-gradient( 180deg, #06152d, #020611 );
}




.channel-box {
    grid-template-columns: repeat(3,1fr);
}



.channel-item {
    padding: 35px;
    text-align: center;
}



    .channel-item h3 {
        color: white;
    }



    .channel-item a {
        margin-top: 20px;
        display: inline-block;
        padding: 10px 30px;
        border-radius: 40px;
        background: linear-gradient( 90deg, #008cff, #00e5ff );
    }








/* =====================================================
PROCESS
===================================================== */


.process {
    background: #030917;
}



.process-list {
    max-width: 950px;
    margin: auto;
}



.process-item {
    display: flex;
    gap: 30px;
    padding: 30px;
    margin-bottom: 20px;
    background: rgba(255,255,255,.05);
    border-radius: 18px;
}



.number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: white;
    background: linear-gradient( 135deg, #008cff, #00e5ff );
}







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


.faq {
    background: #050c1d;
}



    .faq h2 {
        text-align: center;
        color: white;
        font-size: 38px;
    }



.faq-item {
    max-width: 900px;
    margin: 25px auto;
    padding: 30px;
}



    .faq-item h3 {
        color: #00d9ff;
    }







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


.contact-cta {
    text-align: center;
    background: linear-gradient( 120deg, #0066ff, #00d9ff );
}




    .contact-cta h2 {
        font-size: 42px;
        color: white;
    }



    .contact-cta a {
        margin-top: 30px;
        display: inline-block;
        background: white;
        color: #0078ff;
        padding: 15px 45px;
        border-radius: 50px;
    }







/* =========================
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: 14px 30px;
    border-radius: 50px;
    background: linear-gradient( 135deg, #008cff, #00e5ff );
    color: white;
    z-index: 999;
    box-shadow: 0 0 30px rgba(0,168,255,.6);
}







/* =====================================================
ANIMATION
===================================================== */


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



    .reveal.show {
        opacity: 1;
        transform: translateY(0);
    }








/* =====================================================
RESPONSIVE
===================================================== */


@media(max-width:992px) {


    .nav-menu {
        display: none;
        position: absolute;
        top: 82px;
        left: 0;
        width: 100%;
        background: #050b18;
        padding: 30px;
    }



        .nav-menu.show {
            display: flex;
            flex-direction: column;
        }



    .mobile-btn {
        display: block;
    }



    .contact-grid,
    .channel-box,
    .cooperation-grid {
        grid-template-columns: 1fr;
    }



    .hero-content h1 {
        font-size: 38px;
    }
}



@media(max-width:600px) {


    section {
        padding: 60px 5%;
    }



    .hero-content h1 {
        font-size: 32px;
    }



    .hero-content p {
        font-size: 16px;
    }



    .telegram {
        right: 15px;
        bottom: 15px;
    }
}