/*============================================
  CSS UI SEDERHANA - UNTUK LANDING PAGE AWAL
==============================================*/

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

html{
    width:100%;
    height:100%;
}

body{
    width:100%;
    height:100%;
    overflow:hidden;

    font-family:Arial,Helvetica,sans-serif;
    background:linear-gradient(135deg,#0f172a,#1e293b,#334155);
    display:flex;
    justify-content:center;
    align-items:center;
    padding:20px;
    position:relative;
}





/*==========================================
CONTAINER
==========================================*/

.container{
    width:100%;
    max-width:920px;
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.15);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-radius:24px;
    padding:35px;
    box-shadow:0 15px 40px rgba(0,0,0,.35);
}

.title{
    color:#fff;
    text-align:center;
    font-size:34px;
    font-weight:700;
    letter-spacing:.5px;
    margin-bottom:30px;
}

.language-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:16px;
}

.language-btn{
    width:100%;
    height:60px;
    border:none;
    outline:none;
    cursor:pointer;
    border-radius:16px;
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.15);
    color:#fff;
    font-size:15px;
    font-weight:600;
    transition:.25s;
}

.language-btn:hover{
    background:#2563eb;
    border-color:#2563eb;
    transform:translateY(-3px);
    box-shadow:0 10px 25px rgba(37,99,235,.35);
}

.language-btn:active{
    transform:scale(.97);
}

/*==========================================
INFO
==========================================*/

.info-box{
    margin-top:28px;
    padding-top:22px;
    border-top:1px solid rgba(255,255,255,.15);
}

.language-info{
    max-width:680px;
    margin:auto;
    text-align:center;
    color:rgba(255,255,255,.78);
    font-size:15px;
    line-height:1.8;
}

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

.footer{
    position:fixed;
    left:0;
    bottom:18px;
    width:100%;
    text-align:center;
    color:rgba(255,255,255,.55);
    font-size:13px;
    letter-spacing:.5px;
}

/* ============================================
   🔵 RESPONSIVE FIXED (HP - TABLET)
=============================================== */

/* HP KECIL 4" - 4.7" */
@media (max-width:360px){

body{
    padding:15px;
}

.container{
    max-width:330px;
    padding:20px 15px;
    border-radius:18px;
}

.title{
    font-size:22px;
    margin-bottom:20px;
}

.language-grid{
    grid-template-columns:repeat(2,1fr);
    gap:12px;
}

.language-btn{
    height:48px;
    font-size:13px;
    border-radius:12px;
}

.info-box{
    margin-top:18px;
    padding-top:15px;
}

.language-info{
    font-size:12px;
    line-height:1.6;
}

.footer{
    font-size:11px;
    bottom:12px;
}

}

/* HP NORMAL 5" - 5.5" */
@media (min-width:361px) and (max-width:420px){

.container{
    max-width:380px;
    padding:24px 18px;
}

.title{
    font-size:25px;
}

.language-grid{
    grid-template-columns:repeat(2,1fr);
    gap:14px;
}

.language-btn{
    height:54px;
    font-size:14px;
}

.info-box{
    margin-top:20px;
    padding-top:18px;
}

.language-info{
    font-size:13px;
}

.footer{
    font-size:12px;
}

}

/* HP BESAR 6" - 6.5" */
@media (min-width:421px) and (max-width:460px){

.container{
    max-width:420px;
    padding:28px 20px;
}

.title{
    font-size:28px;
}

.language-grid{
    grid-template-columns:repeat(2,1fr);
    gap:15px;
}

.language-btn{
    height:58px;
    font-size:15px;
}

.info-box{
    margin-top:22px;
    padding-top:18px;
}

.language-info{
    font-size:14px;
}

}

/* HP EXTRA BESAR 6.6" - 7" */
@media (min-width:461px) and (max-width:480px){

.container{
    max-width:450px;
    padding:30px 22px;
}

.title{
    font-size:30px;
}

.language-grid{
    grid-template-columns:repeat(2,1fr);
    gap:16px;
}

.language-btn{
    height:60px;
    font-size:15px;
}

.info-box{
    margin-top:24px;
    padding-top:20px;
}

.language-info{
    font-size:14px;
}

}

/* TABLET */
@media (min-width:481px) and (max-width:820px){

.container{
    max-width:700px;
    padding:35px;
}

.title{
    font-size:34px;
}

.language-grid{
    grid-template-columns:repeat(3,1fr);
    gap:18px;
}

.language-btn{
    height:66px;
    font-size:17px;
}

.info-box{
    margin-top:26px;
    padding-top:20px;
}

.language-info{
    font-size:15px;
    line-height:1.8;
}

.footer{
    font-size:14px;
}

}

/* DESKTOP */
@media (min-width:821px){

.container{
    max-width:920px;
}

.language-grid{
    grid-template-columns:repeat(4,1fr);
    gap:18px;
}

.language-btn{
    height:62px;
    font-size:16px;
}

.title{
    font-size:36px;
}

.language-info{
    font-size:15px;
}

}


/*==========================================
GLOBAL UI OPTIMIZATION
==========================================*/

.container,
.title,
.language-grid,
.language-btn,
.info-box,
.language-info,
.footer{

    /* 🔥 Hapus efek kedip saat tap di mobile */
    -webkit-tap-highlight-color:transparent !important;

    /* 🔥 Nonaktifkan menu tekan lama */
    -webkit-touch-callout:none !important;

    /* 🔥 Cegah seleksi teks */
    -webkit-user-select:none !important;
    -moz-user-select:none !important;
    -ms-user-select:none !important;
    user-select:none !important;

    /* 🔥 Optimasi sentuhan */
    touch-action:manipulation !important;

    /* 🔥 Hilangkan outline default */
    outline:none !important;
}