/* ===== HEADER UTAMA ===== */
#header {
    background: linear-gradient(180deg, #eef5fb 0%, #ffffff 100%);
    text-align: center;
    padding: 40px 0;
    position: relative;
    overflow: hidden;
}

/* Background blur efek */
#header:before {
    content: "";
    position: absolute;
    width: 300px;
    height: 300px;
    background: rgba(0, 119, 255, 0.2);
    filter: blur(120px);
    top: -80px;
    left: -80px;
}

#header:after {
    content: "";
    position: absolute;
    width: 300px;
    height: 300px;
    background: rgba(0, 119, 255, 0.2);
    filter: blur(120px);
    bottom: -80px;
    right: -80px;
}

/* ===== LOGO ===== */
#header img {
    max-height: 80px;
    margin-bottom: 10px;
}

/* ===== JUDUL JURNAL ===== */
#headerTitle {
    font-size: 42px;
    font-weight: 700;
    color: #0b5fb3;
    letter-spacing: 2px;
}

/* SUB JUDUL */
#headerTitle span {
    display: block;
    font-size: 22px;
    font-weight: 400;
    color: #3a78c2;
    margin-top: 8px;
}

/* INFO E-ISSN DAN VOLUME */
.journalInfo {
    margin-top: 15px;
    font-size: 14px;
    color: #1e6fd1;
    letter-spacing: 1px;
}

/* ===== MENU NAVIGASI ===== */
#navbar {
    background: #0b5fb3;
    padding: 12px;
}

#navbar ul li a {
    color: white;
    font-weight: 600;
}

#navbar ul li a:hover {
    color: #cce6ff;
}