/* =========================================================
   ALGEBRA, ANALYSIS AND MATHEMATICA
   PROFESSIONAL OJS THEME
   Theme: Mathematical Navy + Teal + Silver + Cool White
   ========================================================= */

:root {
    --aam-navy: #102b46;
    --aam-deep: #0b1d30;
    --aam-blue: #244c6b;
    --aam-teal: #176b72;
    --aam-silver: #aebbc8;
    --aam-silver-light: #e5edf3;
    --aam-ivory: #f5f8fb;
    --aam-paper: #ffffff;
    --aam-text: #2c3440;
    --aam-border: #e0e3e8;
}

html, body {
    background: #eef2f6 !important;
    color: var(--aam-text) !important;
    font-family: Georgia, "Times New Roman", serif !important;
}
.pkp_structure_page { background: transparent !important; }

/* HEADER */
.pkp_structure_head {
    position: relative !important;
    overflow: hidden !important;
    background:
        radial-gradient(ellipse at 50% 0%, rgba(199,164,91,.2) 0%, transparent 60%),
        linear-gradient(135deg, #071521 0%, var(--aam-navy) 56%, #245a70 100%) !important;
    border-bottom: 4px solid var(--aam-silver) !important;
    box-shadow: 0 8px 28px rgba(9,21,37,.24) !important;
}
.pkp_structure_head::before {
    content: "∑";
    position: absolute !important;
    top: -20px !important; right: 5% !important;
    color: rgba(234,217,169,.14) !important;
    font-family: Georgia, "Times New Roman", serif !important;
    font-size: 170px !important; line-height: 1 !important;
    pointer-events: none !important;
}
.pkp_structure_head::after {
    content: "∫";
    position: absolute !important;
    bottom: -28px !important; left: 5% !important;
    color: rgba(234,217,169,.12) !important;
    font-size: 100px !important; line-height: 1 !important;
    pointer-events: none !important;
}
.pkp_head_wrapper {
    position: relative !important; z-index: 1 !important;
    max-width: 1250px !important; margin: 0 auto !important;
    padding: 34px 24px 30px !important; text-align: center !important;
}
.pkp_site_name_wrapper {
    display: flex !important; flex-direction: column !important;
    align-items: center !important; justify-content: center !important;
}
.pkp_site_name a {
    color: var(--aam-ivory) !important;
    font-family: Georgia, "Times New Roman", serif !important;
    font-size: 32px !important; font-weight: 700 !important;
    letter-spacing: .35px !important; line-height: 1.3 !important;
    text-decoration: none !important;
    text-shadow: 0 3px 12px rgba(0,0,0,.4) !important;
    transition: color .25s ease, text-shadow .25s ease !important;
}
.pkp_site_name a:hover {
    color: var(--aam-silver-light) !important;
    text-shadow: 0 0 18px rgba(199,164,91,.45) !important;
}
.pkp_site_name::after {
    content: "ALGEBRA • ANALYSIS • MATHEMATICS";
    display: block !important; margin-top: 10px !important;
    color: var(--aam-silver-light) !important;
    font-family: Arial, sans-serif !important; font-size: 12px !important;
    font-weight: 600 !important; letter-spacing: 1.8px !important;
}

/* NAVIGATION BELOW JOURNAL TITLE */
.pkp_navigation_primary_row {
    position: relative !important; z-index: 5 !important;
    background: var(--aam-deep) !important;
    border-top: 1px solid rgba(234,217,169,.2) !important;
    border-bottom: 2px solid var(--aam-silver) !important;
}
.pkp_navigation_primary_wrapper {
    max-width: 1250px !important; margin: 0 auto !important;
    display: flex !important; justify-content: center !important;
}
.pkp_navigation_primary > li > a {
    color: var(--aam-ivory) !important; padding: 14px 16px !important;
    font-family: Arial, sans-serif !important; font-size: 12px !important;
    font-weight: 700 !important; letter-spacing: .45px !important;
    text-transform: uppercase !important;
    transition: background .2s ease, color .2s ease !important;
}
.pkp_navigation_primary > li > a:hover,
.pkp_navigation_primary > li.current > a,
.pkp_navigation_primary > li > a[aria-current="page"] {
    background: var(--aam-silver) !important; color: var(--aam-deep) !important;
    text-decoration: none !important;
}
.pkp_navigation_primary ul {
    background: var(--aam-deep) !important;
    border-top: 3px solid var(--aam-silver) !important;
    box-shadow: 0 10px 24px rgba(0,0,0,.25) !important;
}
.pkp_navigation_primary ul li a {
    color: var(--aam-ivory) !important; padding: 11px 15px !important;
    font-size: 13px !important;
}
.pkp_navigation_primary ul li a:hover {
    background: var(--aam-silver) !important; color: var(--aam-deep) !important;
}
.pkp_navigation_search_wrapper a,
.pkp_navigation_user a {
    color: var(--aam-ivory) !important; font-weight: 600 !important;
}
.pkp_navigation_search_wrapper a:hover,
.pkp_navigation_user a:hover { color: var(--aam-silver-light) !important; }

/* MAIN CONTENT AND SIDEBAR */
.pkp_structure_content {
    max-width: 1250px !important; margin: 34px auto !important;
    padding: 0 20px !important;
}
.pkp_structure_content.has_sidebar {
    display: flex !important; flex-direction: row !important;
    align-items: flex-start !important; gap: 28px !important;
}
.pkp_structure_content.has_sidebar .pkp_structure_main {
    flex: 1 1 auto !important; min-width: 0 !important;
}
.pkp_structure_content.has_sidebar .pkp_structure_sidebar {
    flex: 0 0 285px !important; width: 285px !important;
}
.pkp_structure_sidebar .pkp_block {
    background: var(--aam-paper) !important; border: 1px solid var(--aam-border) !important;
    border-radius: 8px !important; margin-bottom: 18px !important;
    padding: 20px !important; box-shadow: 0 5px 18px rgba(20,36,58,.07) !important;
}
.pkp_structure_sidebar .pkp_block::before {
    content: "" !important; display: block !important;
    width: 48px !important; height: 3px !important; margin-bottom: 13px !important;
    background: var(--aam-silver) !important;
}
.pkp_structure_sidebar .pkp_block .title {
    color: var(--aam-navy) !important;
    font-family: Georgia, "Times New Roman", serif !important;
    font-size: 18px !important; font-weight: 700 !important;
}

/* CURRENT ISSUE */
.current_issue {
    position: relative !important; overflow: hidden !important;
    background: var(--aam-paper) !important; border: 1px solid var(--aam-border) !important;
    border-radius: 9px !important; padding: 28px !important; margin-bottom: 24px !important;
    box-shadow: 0 7px 24px rgba(20,36,58,.07) !important;
}
.current_issue::before {
    content: "" !important; position: absolute !important; top: 0 !important; left: 0 !important;
    width: 100% !important; height: 4px !important;
    background: linear-gradient(90deg, var(--aam-navy), var(--aam-teal), var(--aam-silver)) !important;
}
.current_issue h2, .current_issue_title {
    color: var(--aam-navy) !important;
    font-family: Georgia, "Times New Roman", serif !important; font-weight: 700 !important;
}
.current_issue h2 { font-size: 26px !important; margin-bottom: 17px !important; }
.current_issue_title {
    font-size: 20px !important; border-bottom: 1px solid var(--aam-border) !important;
    padding-bottom: 11px !important; margin-bottom: 18px !important;
}
.current_issue .published {
    background: var(--aam-ivory) !important; border-left: 3px solid var(--aam-silver) !important;
    padding: 10px 14px !important; margin-bottom: 18px !important;
}
.obj_article_summary {
    background: #fff !important; border: 1px solid var(--aam-border) !important;
    border-left: 3px solid var(--aam-teal) !important; border-radius: 7px !important;
    padding: 18px !important; margin: 13px 0 !important;
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease !important;
}
.obj_article_summary:hover {
    transform: translateY(-2px) !important; border-left-color: var(--aam-silver) !important;
    box-shadow: 0 8px 20px rgba(20,36,58,.1) !important;
}
.obj_article_summary .title a {
    color: var(--aam-navy) !important;
    font-family: Georgia, "Times New Roman", serif !important;
    font-size: 18px !important; font-weight: 700 !important; text-decoration: none !important;
}
.obj_article_summary .title a:hover { color: var(--aam-teal) !important; }
.obj_galley_link.pdf, .current_issue .read_more {
    display: inline-block !important; background: var(--aam-navy) !important;
    color: var(--aam-ivory) !important; padding: 9px 16px !important;
    border: 1px solid var(--aam-silver) !important; border-radius: 4px !important;
    font-family: Arial, sans-serif !important; font-size: 11px !important;
    font-weight: 700 !important; letter-spacing: .4px !important;
    text-transform: uppercase !important; text-decoration: none !important;
    transition: background .2s ease, color .2s ease !important;
}
.obj_galley_link.pdf:hover, .current_issue .read_more:hover {
    background: var(--aam-silver) !important; color: var(--aam-deep) !important;
}

/* CONTENT DETAILS, TABLES AND FORMS */
.pkp_page_index .additional_content, .pkp_page_about .additional_content {
    line-height: 1.8 !important;
}
table { border-color: var(--aam-border) !important; }
th { background: #e8eef3 !important; color: var(--aam-navy) !important; }
input[type="text"], input[type="email"], input[type="password"], textarea, select {
    border: 1px solid #cbd1da !important; border-radius: 4px !important;
    background: #fff !important; padding: 9px 11px !important;
}
button, .button, input[type="submit"] { border-radius: 4px !important; }

/* FOOTER */
.pkp_structure_footer_wrapper {
    background: linear-gradient(135deg, #071521 0%, var(--aam-navy) 65%, #245a70 100%) !important;
    border-top: 4px solid var(--aam-silver) !important;
    padding: 28px 20px !important; color: var(--aam-ivory) !important;
}
.pkp_structure_footer { max-width: 1250px !important; margin: 0 auto !important; }
.pkp_brand_footer { color: #e3dfd4 !important; text-align: center !important; font-size: 12px !important; }

/* MOBILE RESPONSIVE */
@media (max-width: 900px) {
    .pkp_head_wrapper { padding: 25px 15px !important; }
    .pkp_site_name a { font-size: 28px !important; }
    .pkp_site_name::after {
        font-size: 10px !important; letter-spacing: 1.2px !important; line-height: 1.7 !important;
    }
    .pkp_navigation_primary_wrapper { flex-wrap: wrap !important; }
    .pkp_navigation_primary > li > a { padding: 11px 10px !important; font-size: 11px !important; }
    .pkp_structure_content, .pkp_structure_content.has_sidebar {
        display: block !important; margin: 24px auto !important; padding: 0 14px !important;
    }
    .pkp_structure_content.has_sidebar .pkp_structure_main,
    .pkp_structure_content.has_sidebar .pkp_structure_sidebar {
        width: 100% !important; max-width: 100% !important;
    }
    .pkp_structure_content.has_sidebar .pkp_structure_sidebar { margin-top: 24px !important; }
    .current_issue { padding: 20px !important; }
}
@media (max-width: 480px) {
    .pkp_site_name a { font-size: 22px !important; }
    .pkp_site_name::after {
        max-width: 300px !important; font-size: 9px !important; letter-spacing: .7px !important;
    }
    .pkp_navigation_primary > li > a { padding: 9px 8px !important; font-size: 10px !important; }
}