/* ==========================================================
   AENE - ADVANCES IN ENERGY NEXUS ENGINEERING
   OJS 3.3.0.21 CUSTOM CSS
   ========================================================== */

/* ---------- COLOR SYSTEM ---------- */

:root {
    --aene-blue-dark: #073B4C;
    --aene-blue: #0B5D7A;
    --aene-blue-light: #EAF5F8;
    --aene-teal: #159A9C;
    --aene-orange: #F4A261;

    --aene-text: #263238;
    --aene-muted: #607D8B;

    --aene-white: #FFFFFF;
    --aene-bg: #F7FAFC;
    --aene-border: #DCE6EB;

    --aene-shadow:
        0 8px 25px rgba(7, 59, 76, 0.08);

    --aene-shadow-hover:
        0 12px 35px rgba(7, 59, 76, 0.14);
}


/* ---------- GLOBAL ---------- */

body {
    background: var(--aene-bg);
    color: var(--aene-text);
    font-family: "Open Sans", "Segoe UI", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.75;
}

a {
    color: var(--aene-blue);
    transition: all .25s ease;
}

a:hover {
    color: var(--aene-teal);
    text-decoration: none;
}


/* ---------- HEADER ---------- */

.pkp_structure_head {
    background:
        linear-gradient(
            135deg,
            #073B4C 0%,
            #0B5D7A 60%,
            #159A9C 100%
        );
    border-bottom: 4px solid var(--aene-orange);
}


/* ---------- JOURNAL NAME ---------- */

.pkp_site_name {
    padding-top: 25px;
    padding-bottom: 25px;
}

.pkp_site_name a {
    color: #FFFFFF;
    font-family: "Montserrat", "Segoe UI", Arial, sans-serif;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.pkp_site_name > a {
    font-size: 28px;
}


/* Logo */

.pkp_site_name .is_img img {
    max-height: 90px;
    width: auto;
}


/* ---------- PRIMARY NAVIGATION ---------- */

.pkp_navigation_primary_wrapper {
    background: rgba(0,0,0,.12);
    border-top: 1px solid rgba(255,255,255,.12);
}

.pkp_navigation_primary > li > a {
    color: #FFFFFF;
    font-family: "Montserrat", "Segoe UI", Arial, sans-serif;
    font-size: 13px;
    font-weight: 600;
    padding: 15px 16px;
}

.pkp_navigation_primary > li > a:hover {
    background: rgba(255,255,255,.10);
    color: #FFFFFF;
}

.pkp_navigation_primary > li.current > a {
    color: #FFFFFF;
    border-bottom: 3px solid var(--aene-orange);
}


/* ---------- DROPDOWN ---------- */

.pkp_navigation_primary .dropdown-menu {
    background: #FFFFFF;
    border: 1px solid var(--aene-border);
    border-radius: 7px;
    box-shadow: var(--aene-shadow-hover);
}

.pkp_navigation_primary .dropdown-menu a {
    color: var(--aene-text);
    padding: 10px 18px;
}

.pkp_navigation_primary .dropdown-menu a:hover {
    background: var(--aene-blue-light);
    color: var(--aene-blue);
}


/* ---------- MAIN CONTENT ---------- */

.pkp_structure_content {
    background: #FFFFFF;
    padding-top: 45px;
    padding-bottom: 55px;
}


/* ---------- PAGE TITLE ---------- */

.page-header h1 {
    color: var(--aene-blue-dark);
    font-family: "Montserrat", "Segoe UI", Arial, sans-serif;
    font-size: 30px;
    font-weight: 700;
    line-height: 1.3;
    padding-bottom: 12px;
    margin-bottom: 30px;
    position: relative;
}

.page-header h1:after {
    content: "";
    display: block;
    width: 55px;
    height: 4px;
    margin-top: 12px;
    background: var(--aene-teal);
    border-radius: 10px;
}


/* ---------- HEADINGS ---------- */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: "Montserrat", "Segoe UI", Arial, sans-serif;
    color: var(--aene-blue-dark);
    font-weight: 700;
    line-height: 1.35;
}

h2 {
    font-size: 25px;
}

h3 {
    font-size: 20px;
}


/* ---------- ARTICLE LIST ---------- */

.obj_article_summary {
    background: #FFFFFF;
    border: 1px solid var(--aene-border);
    border-radius: 9px;
    padding: 24px;
    margin-bottom: 20px;

    transition:
        transform .25s ease,
        box-shadow .25s ease,
        border-color .25s ease;
}

.obj_article_summary:hover {
    transform: translateY(-3px);
    border-color: rgba(11,93,122,.25);
    box-shadow: var(--aene-shadow-hover);
}

.obj_article_summary h3 {
    margin-top: 0;
    font-size: 19px;
}

.obj_article_summary h3 a {
    color: var(--aene-blue-dark);
}

.obj_article_summary h3 a:hover {
    color: var(--aene-teal);
}


/* ---------- ARTICLE DETAILS ---------- */

.obj_article_details .title {
    color: var(--aene-blue-dark);
    font-family: "Montserrat", "Segoe UI", Arial, sans-serif;
    font-size: 36px;
    font-weight: 700;
    line-height: 1.3;
}


/* ---------- ABSTRACT ---------- */

.abstract {
    background: var(--aene-blue-light);
    border-left: 5px solid var(--aene-teal);
    border-radius: 0 7px 7px 0;
    padding: 25px 30px;
    margin: 30px 0;
}

.abstract h2 {
    margin-top: 0;
    font-size: 20px;
}


/* ---------- KEYWORDS ---------- */

.item.keywords a {
    display: inline-block;
    background: var(--aene-blue-light);
    color: var(--aene-blue);
    padding: 5px 12px;
    margin: 3px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.item.keywords a:hover {
    background: var(--aene-blue);
    color: #FFFFFF;
}


/* ---------- SIDEBAR ---------- */

.pkp_structure_sidebar .block {
    background: #FFFFFF;
    border: 1px solid var(--aene-border);
    border-radius: 9px;
    padding: 20px;
    margin-bottom: 25px;
    box-shadow: 0 5px 18px rgba(7,59,76,.04);
}

.pkp_block .title {
    color: var(--aene-blue-dark);
    font-family: "Montserrat", "Segoe UI", Arial, sans-serif;
    font-size: 16px;
    font-weight: 700;
}


/* ---------- SUBMIT BUTTON ---------- */

.block_make_submission a {
    display: block;
    background:
        linear-gradient(
            135deg,
            var(--aene-blue),
            var(--aene-teal)
        );

    color: #FFFFFF;
    text-align: center;

    border-radius: 7px;
    padding: 13px 18px;

    font-family: "Montserrat", "Segoe UI", Arial, sans-serif;
    font-size: 13px;
    font-weight: 700;

    transition: all .25s ease;
}

.block_make_submission a:hover {
    color: #FFFFFF;
    transform: translateY(-2px);
    box-shadow: var(--aene-shadow-hover);
}


/* ---------- TABLE ---------- */

table {
    width: 100%;
    border-collapse: collapse;
    margin: 25px 0;
}

table th {
    background: var(--aene-blue);
    color: #FFFFFF;
    font-family: "Montserrat", "Segoe UI", Arial, sans-serif;
    font-weight: 600;
    padding: 13px 15px;
}

table td {
    border-bottom: 1px solid var(--aene-border);
    padding: 12px 15px;
}

table tr:hover td {
    background: var(--aene-blue-light);
}


/* ---------- BLOCKQUOTE ---------- */

blockquote {
    background: var(--aene-blue-light);
    border-left: 5px solid var(--aene-teal);
    border-radius: 0 7px 7px 0;
    padding: 20px 25px;
}


/* ---------- FORM ---------- */

input,
textarea,
select {
    border: 1px solid var(--aene-border);
    border-radius: 6px;
    padding: 10px 13px;
    transition: all .25s ease;
}

input:focus,
textarea:focus,
select:focus {
    border-color: var(--aene-blue);
    box-shadow: 0 0 0 3px rgba(11,93,122,.10);
    outline: none;
}


/* ---------- BUTTON ---------- */

.btn-primary,
.pkp_button_primary {
    background: var(--aene-blue);
    border-color: var(--aene-blue);
    color: #FFFFFF;
    border-radius: 6px;
    font-weight: 600;
}

.btn-primary:hover,
.pkp_button_primary:hover {
    background: var(--aene-blue-dark);
    border-color: var(--aene-blue-dark);
    color: #FFFFFF;
}


/* ---------- FOOTER ---------- */

.pkp_structure_footer_wrapper {
    background: var(--aene-blue-dark);
    border-top: 4px solid var(--aene-teal);
    color: rgba(255,255,255,.78);
}

.pkp_structure_footer {
    padding-top: 40px;
    padding-bottom: 40px;
}

.pkp_structure_footer a {
    color: rgba(255,255,255,.9);
}

.pkp_structure_footer a:hover {
    color: var(--aene-orange);
}


/* ---------- DOI ---------- */

.doi a {
    display: inline-block;
    background: var(--aene-blue-light);
    color: var(--aene-blue);
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 12px;
    font-weight: 600;
}


/* ---------- GALLEY BUTTON ---------- */

.galleys a {
    display: inline-block;
    background: var(--aene-blue);
    color: #FFFFFF;
    padding: 8px 15px;
    margin: 4px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
}

.galleys a:hover {
    background: var(--aene-teal);
    color: #FFFFFF;
}


/* ---------- PAGINATION ---------- */

.pagination > li > a,
.pagination > li > span {
    color: var(--aene-blue);
    border-color: var(--aene-border);
}

.pagination > .active > a,
.pagination > .active > span {
    background: var(--aene-blue);
    border-color: var(--aene-blue);
    color: #FFFFFF;
}


/* ---------- RESPONSIVE ---------- */

@media (max-width: 991px) {

    .pkp_structure_content {
        padding-top: 30px;
    }

    .obj_article_details .title {
        font-size: 30px;
    }
}


@media (max-width: 767px) {

    body {
        font-size: 14px;
    }

    .pkp_site_name > a {
        font-size: 21px;
    }

    .pkp_navigation_primary > li > a {
        padding: 10px 14px;
    }

    .pkp_structure_content {
        padding-top: 25px;
    }

    .page-header h1 {
        font-size: 25px;
    }

    .obj_article_details .title {
        font-size: 25px;
    }

    table {
        display: block;
        overflow-x: auto;
    }
}