/* =========================================
   RESET DASAR HALAMAN
========================================= */

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

html,
body {
    width: 100%;
    margin: 0;
    padding: 0;
}

body {
    min-height: 100vh;
}


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

.site-header {
    position: sticky;
    top: 0;
    left: 0;

    width: 100%;
    margin: 0;
    padding: 0;

    z-index: 9999;

    background:
        linear-gradient(
            90deg,
            #ffffff 0%,
            #f5f8fc 50%,
            #eef3f9 100%
        );

    border-bottom:
        1px solid rgba(29, 79, 145, 0.15);

    box-shadow:
        0 4px 20px rgba(20, 53, 100, 0.08);
}


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

.header-container {
    width: 100%;
    max-width: none;

    min-height: 82px;

    margin: 0;
    padding: 0 60px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 30px;
}


/* =========================================
   BRAND
========================================= */

.brand {
    display: flex;
    align-items: center;

    gap: 14px;

    text-decoration: none;

    flex-shrink: 0;
}


.brand img {
    width: 52px;
    height: 52px;

    object-fit: contain;

    display: block;
}


/* =========================================
   NAMA INSTITUSI
========================================= */

.institution-name {
    display: flex;
    flex-direction: column;

    line-height: 1.15;
}


/* SEKOLAH PASCASARJANA */

.institution-name span {
    font-size: 16px;

    font-weight: 800;

    letter-spacing: 0.2px;

    color: #1d4f91;
}


/* UNIVERSITAS TERBUKA */

.institution-name strong {
    margin-top: 4px;

    font-size: 13px;

    font-weight: 600;

    color: #475569;
}


/* =========================================
   NAVIGASI
========================================= */

.main-nav {
    display: flex;
    align-items: center;
    justify-content: center;

    flex: 1;

    gap: 30px;
}


.main-nav a {
    position: relative;

    padding: 30px 0;

    text-decoration: none;

    font-size: 13px;
    font-weight: 700;

    color: #475569;

    white-space: nowrap;

    transition:
        color 0.25s ease;
}


/* HOVER */

.main-nav a:hover {
    color: #1d4f91;
}


/* GARIS MENU */

.main-nav a::after {
    content: "";

    position: absolute;

    left: 0;
    bottom: 20px;

    width: 0;
    height: 3px;

    border-radius: 10px;

    background:
        linear-gradient(
            90deg,
            #1d4f91,
            #f4c542
        );

    transition:
        width 0.3s ease;
}


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


/* MENU AKTIF */

.main-nav a.active {
    color: #1d4f91;
}


/* =========================================
   PROFIL
========================================= */

.profile-info {
    display: flex;
    flex-direction: column;

    text-align: right;

    padding-left: 28px;

    border-left:
        1px solid rgba(29, 79, 145, 0.15);

    min-width: 210px;
}


.profile-info strong {
    font-size: 14px;

    font-weight: 800;

    color: #1d4f91;
}


.profile-info span {
    margin-top: 4px;

    font-size: 12px;

    font-weight: 500;

    color: #64748b;
}


/* =========================================
   TABLET
========================================= */

@media (max-width: 1200px) {

    .header-container {
        padding: 0 30px;
    }

    .main-nav {
        gap: 18px;
    }

    .main-nav a {
        font-size: 12px;
    }

}


@media (max-width: 1000px) {

    .profile-info {
        display: none;
    }

    .header-container {
        padding: 0 24px;
    }

}


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

@media (max-width: 700px) {

    .site-header {
        position: sticky;
    }


    .header-container {
        min-height: auto;

        padding: 14px 20px;

        flex-wrap: wrap;
    }


    .brand img {
        width: 42px;
        height: 42px;
    }


    .institution-name span {
        font-size: 14px;
    }


    .institution-name strong {
        font-size: 11px;
    }


    .main-nav {
        order: 3;

        width: 100%;

        justify-content: flex-start;

        overflow-x: auto;

        gap: 24px;

        padding-top: 6px;

        scrollbar-width: none;
    }


    .main-nav::-webkit-scrollbar {
        display: none;
    }


    .main-nav a {
        padding: 12px 0;

        font-size: 12px;
    }


    .main-nav a::after {
        bottom: 5px;
    }

}