html {
    scroll-behavior: smooth;
}

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

body {
    font-family: Arial, Helvetica, sans-serif;
    color: #222;
    background: #f7f9fc;
}

/* TOP BAR */
.top-bar {
    background: #102a43;
    color: white;
    padding: 8px 0;
    font-size: 14px;
}

.top-bar a {
    color: white;
    text-decoration: none;
    margin-left: 20px;
}

/* HEADER */
.main-header {
    background: white;
    padding: 18px 0;
    border-bottom: 1px solid #ddd;
}

.journal-title {
    font-size: 27px;
    font-weight: 700;
    color: #123b5d;
    line-height: 1.2;
}

.journal-subtitle {
    font-size: 14px;
    color: #666;
    margin-top: 5px;
}

.logo-img-header {
    max-width: 95px;
    height: auto;
    object-fit: contain;
}

.logo-img-nav {
    height: 35px;
    width: auto;
    margin-right: 8px;
    border-radius: 4px;
}

/* NAVBAR */
.navbar {
    background: #123b5d !important;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .nav-link {
    color: white !important;
    font-size: 15px;
    padding: 14px 16px !important;
}

.navbar .nav-link:hover, .navbar .nav-link.active {
    background: #0d2c45;
}

/* HERO */
.hero {
    background: linear-gradient(rgba(18,59,93,.90), rgba(18,59,93,.90)), url("images/research-bg.jpg");
    background-size: cover;
    background-position: center;
    color: white;
    padding: 75px 0;
}

.hero h1 {
    font-size: 42px;
    font-weight: 700;
}

.hero p {
    font-size: 19px;
    max-width: 850px;
    margin: 20px auto;
    line-height: 1.7;
}

.btn-primary-custom {
    background: #f39c12;
    color: white;
    border: none;
    padding: 13px 25px;
    border-radius: 4px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
}

.btn-primary-custom:hover {
    background: #d68910;
    color: white;
}

.btn-outline-custom {
    border: 1px solid white;
    color: white;
    padding: 12px 25px;
    border-radius: 4px;
    margin-left: 10px;
    text-decoration: none;
    display: inline-block;
}

.btn-outline-custom:hover {
    background: white;
    color: #123b5d;
}

/* JOURNAL INFO */
.info-section {
    margin-top: -35px;
    position: relative;
    z-index: 5;
}

.info-card {
    background: white;
    padding: 25px 15px;
    text-align: center;
    border-radius: 6px;
    box-shadow: 0 5px 20px rgba(0,0,0,.08);
    height: 100%;
}

.info-card i {
    font-size: 30px;
    color: #f39c12;
}

.info-card h5 {
    margin-top: 10px;
    color: #123b5d;
    font-weight: 700;
}

.info-card p {
    margin: 0;
    color: #666;
}

/* SECTION */
.section {
    padding: 70px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 45px;
}

.section-title h2 {
    color: #123b5d;
    font-weight: 700;
}

.section-title p {
    color: #777;
}

/* ABOUT */
.about-box {
    background: white;
    padding: 30px;
    border-radius: 7px;
    box-shadow: 0 3px 15px rgba(0,0,0,.06);
    height: 100%;
}

.about-box h3 {
    color: #123b5d;
    margin-bottom: 20px;
}

.about-box p {
    line-height: 1.8;
    color: #555;
}

/* EDITORIAL BOARD */
.editorial-box {
    background: white;
    padding: 30px;
    border-radius: 7px;
    box-shadow: 0 3px 15px rgba(0,0,0,.06);
    height: 100%;
    border-top: 4px solid #123b5d;
}

.editor-group-title {
    color: #f39c12;
    font-weight: 700;
    font-size: 18px;
    margin-bottom: 15px;
    text-transform: uppercase;
}

.editor-item {
    margin-bottom: 15px;
    padding-bottom: 12px;
    border-bottom: 1px dashed #eee;
}

.editor-name {
    font-weight: 700;
    color: #222;
    font-size: 16px;
}

.editor-affil {
    color: #666;
    font-size: 14px;
}

/* RESEARCH AREAS */
.research-card {
    background: white;
    padding: 25px;
    margin-bottom: 25px;
    border-radius: 6px;
    border-left: 4px solid #f39c12;
    box-shadow: 0 3px 12px rgba(0,0,0,.05);
    height: 100%;
}

.research-card i {
    font-size: 30px;
    color: #123b5d;
}

.research-card h5 {
    margin-top: 15px;
    color: #123b5d;
}

/* SUBMISSION */
.submission-section {
    background: #123b5d;
    color: white;
    padding: 65px 0;
}

/* LATEST ARTICLES */
.article-card {
    background: white;
    border-radius: 7px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 3px 15px rgba(0,0,0,.06);
}

.article-card h5 {
    color: #123b5d;
    font-weight: 600;
}

.article-meta {
    font-size: 13px;
    color: #777;
}

/* FOOTER */
footer {
    background: #0b1f30;
    color: #ddd;
    padding: 55px 0 20px;
}

footer h5 {
    color: white;
    margin-bottom: 20px;
}

footer a {
    color: #ccc;
    text-decoration: none;
    display: block;
    margin-bottom: 8px;
}

footer a:hover {
    color: white;
}

.copyright {
    border-top: 1px solid #294155;
    margin-top: 35px;
    padding-top: 20px;
    text-align: center;
    font-size: 14px;
}