/* ==========================================
   PREMIUM OJS HEADER + NAV (COMPLETE FINAL)
   Journal of Computation Intelligence and Research
   ========================================== */

/* ---------- HEADER BASE ---------- */
.navbar-default{
    background: linear-gradient(135deg, #0B1E3A 0%, #1C4E8E 55%, #0B1E3A 100%) !important;
    border: none !important;
    box-shadow: 0 10px 25px rgba(0,0,0,0.20) !important;
    position: relative;
}

/* subtle top highlight line */
.navbar-default::before{
    content:"";
    position:absolute;
    left:0; right:0; top:0;
    height:2px;
    background: linear-gradient(90deg, #4FC3F7, rgba(255,255,255,0));
}

/* ---------- BRAND (LOGO + TITLE) ---------- */
.navbar-brand{
    display:flex !important;
    align-items:center !important;
    justify-content:flex-start !important;
    height:auto !important;
    width:auto !important;
    float:left !important;
    padding: 14px 0 14px 18px !important;
    gap: 14px !important;
}

/* logo */
.navbar-brand img{
    max-height: 72px !important;
    width: auto !important;
    margin: 0 !important;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;

    mix-blend-mode: normal !important;
    filter: drop-shadow(0 6px 10px rgba(0,0,0,0.25)) !important;
}

/* title text */
.navbar-brand::after{
    content: "Journal of Computation Intelligence and Research" !important;
    color:#ffffff !important;
    font-family: "Georgia","Times New Roman",serif !important;
    font-size: 26px !important;
    font-weight: 650 !important;
    letter-spacing: 0.3px !important;
    line-height: 1.15 !important;
    display:inline-block !important;
    text-shadow: 0 2px 6px rgba(0,0,0,0.35) !important;
}

/* If OJS shows site name twice, hide the normal text inside brand */
.navbar-brand span,
.navbar-brand .site-name{
    display:none !important;
}

/* ---------- NAV STRUCTURE ---------- */
.navbar-header{
    width:100% !important;
    float:none !important;
}

/* nav ribbon */
.navbar-collapse{
    width:100% !important;
    clear:both !important;
    border-top: 1px solid rgba(255,255,255,0.10) !important;
    background: rgba(0,0,0,0.10) !important; /* slightly deeper for contrast */
    backdrop-filter: blur(6px);
    padding: 4px 15px !important;
}

/* ---------- NAV LINKS ---------- */
.navbar-nav{
    margin: 0 !important;
}

/* link base */
.navbar-nav > li > a{
    color: rgba(255,255,255,0.90) !important;
    font-size: 12px !important;
    letter-spacing: 0.7px !important;
    text-transform: uppercase !important;
    padding: 12px 16px !important;
    transition: all 0.25s ease !important;
    position: relative !important;
    border-radius: 8px;
}

/* underline animation */
.navbar-nav > li > a::after{
    content:"";
    position:absolute;
    left:16px; right:16px;
    bottom:6px;
    height:2px;
    background: linear-gradient(90deg, #4FC3F7, rgba(255,255,255,0)) !important;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.25s ease;
    opacity: 0.85;
}

.navbar-nav > li > a:hover{
    color:#ffffff !important;
    background: rgba(79,195,247,0.12) !important; /* soft aqua */
}
.navbar-nav > li > a:hover::after{
    transform: scaleX(1);
}

/* active item */
.navbar-nav > .active > a,
.navbar-nav > .active > a:hover,
.navbar-nav > .active > a:focus{
    color:#ffffff !important;
    background: rgba(79,195,247,0.22) !important;
}

/* ---------- SEARCH (RIGHT, MODERN) ---------- */
.navbar-form{
    float:right !important;
    margin: 6px 18px 6px 0 !important;
}

.navbar-form .form-control{
    border-radius: 22px !important;
    border: 1px solid rgba(79,195,247,0.35) !important;
    background: rgba(255,255,255,0.12) !important;
    color:#fff !important;
    height: 34px !important;
    padding-left: 14px !important;
    transition: all 0.25s ease !important;
}

.navbar-form .form-control::placeholder{
    color: rgba(255,255,255,0.72) !important;
}

.navbar-form .form-control:focus{
    outline:none !important;
    box-shadow: 0 0 0 4px rgba(79,195,247,0.22) !important;
    background: rgba(255,255,255,0.16) !important;
}

/* search button */
.navbar-form .btn-default{
    border-radius: 22px !important;
    background:#4FC3F7 !important;
    color:#0B1E3A !important;
    font-weight: 750 !important;
    border:none !important;
    height: 34px !important;
    padding: 0 14px !important;
    transition: all 0.25s ease !important;
}

.navbar-form .btn-default:hover{
    transform: translateY(-1px);
    box-shadow: 0 10px 18px rgba(79,195,247,0.35) !important;
}

/* ---------- DESKTOP: CENTER MENU ---------- */
@media (min-width: 768px){

    .navbar-collapse{
        text-align:center !important;
    }

    .navbar-nav{
        float:none !important;
        display:inline-block !important;
        vertical-align: middle;
    }

    .navbar-form{
        float:right !important;
    }
}

/* ---------- MOBILE CLEAN LAYOUT ---------- */
@media (max-width: 767px){

    .navbar-brand{
        width: 82% !important; /* space for toggle */
        padding: 10px 0 10px 12px !important;
        gap: 10px !important;
    }

    .navbar-brand img{
        max-height: 44px !important;
        flex-shrink: 0 !important;
        filter: drop-shadow(0 4px 8px rgba(0,0,0,0.28)) !important;
    }

    .navbar-brand::after{
        font-size: 13px !important;
        font-weight: 750 !important;
        line-height: 1.2 !important;
        white-space: normal !important;
    }

    .navbar-toggle{
        margin-top: 16px !important;
        margin-right: 10px !important;
        float:right !important;
        border: 1px solid rgba(255,255,255,0.25) !important;
        border-radius: 10px !important;
        background: rgba(255,255,255,0.08) !important;
    }

    .navbar-collapse{
        text-align:left !important;
        padding: 8px 10px !important;
    }

    /* search full width */
    .navbar-form{
        float:none !important;
        margin: 10px 0 !important;
    }
    .navbar-form .form-control,
    .navbar-form .btn-default{
        width: 100% !important;
    }
    .navbar-form .btn-default{
        margin-top: 8px;
    }

    /* optional user profile small */
    #navigationUser{
        position:absolute;
        right:10px;
        top:2px;
        font-size: 10px !important;
        opacity: 0.9;
    }
}

/* ---------- FOOTER LOGO (SMALL WATERMARK) ---------- */
.pkp_brand_footer img{
    max-width: 38px !important;  /* small logo */
    height:auto !important;
    opacity: 0.50 !important;
    filter: brightness(0) invert(1) !important;
    float:right !important;
    margin-top: 6px !important;
}