/* ===========================
   🎨 MODERN CONTENT & MENU STYLING
   (Maintaining existing header/footer)
=========================== */

/* ===========================
   🏗️ MAIN CONTENT AREA MODERNIZATION
=========================== */
.pkp_structure_main {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 16px;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    margin: 20px 0;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* ===========================
   🧭 MODERN PRIMARY NAVIGATION
=========================== */
.pkp_navigation_primary_row {
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.95) 0%,
        rgba(244, 210, 77, 0.8) 100%) !important;
    backdrop-filter: blur(20px);
    border-radius: 12px;
    box-shadow: 
        0 4px 20px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
    margin: 20px 0;
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 0 20px;
}

.pkp_navigation_primary_row .pkp_navigation_primary_wrapper ul {
    display: flex;
    justify-content: center;
    gap: 2px;
    padding: 8px 0;
}

.pkp_navigation_primary_row .pkp_navigation_primary_wrapper ul li {
    padding: 0 !important;
    margin: 0 !important;
    position: relative;
}

.pkp_navigation_primary_row .pkp_navigation_primary_wrapper ul li a {
    margin: 0 !important;
    padding: 12px 24px !important;
    line-height: 1.4 !important;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif !important;
    color: #2d3748 !important;
    font-weight: 600 !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 8px !important;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.pkp_navigation_primary_row .pkp_navigation_primary_wrapper ul li a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.4), 
        transparent);
    transition: left 0.6s ease;
}

.pkp_navigation_primary_row .pkp_navigation_primary_wrapper ul li a:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: #fff !important;
    transform: translateY(-2px);
    box-shadow: 
        0 6px 20px rgba(102, 126, 234, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.pkp_navigation_primary_row .pkp_navigation_primary_wrapper ul li a:hover::before {
    left: 100%;
}

/* ===========================
   🔍 MODERN SEARCH COMPONENT
=========================== */
.pkp_head_wrapper .pkp_search {
    position: absolute;
    top: 50%;
    right: 120px;
    transform: translateY(-50%);
    height: 46px;
    width: 280px;
    padding: 0 20px;
    font-size: 14px;
    border-radius: 25px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(25px);
    box-shadow: 
        0 6px 25px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.25),
        inset 0 -1px 0 rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: 1000;
    color: #fff;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-weight: 500;
}

.pkp_head_wrapper .pkp_search::placeholder {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 400;
    letter-spacing: 0.3px;
}

.pkp_head_wrapper .pkp_search:focus {
    outline: none;
    width: 320px;
    border-color: rgba(255, 255, 255, 0.7);
    background: rgba(255, 255, 255, 0.18);
    box-shadow: 
        0 10px 35px rgba(0, 0, 0, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.35),
        inset 0 -1px 0 rgba(0, 0, 0, 0.15);
    transform: translateY(-50%) scale(1.03);
}

.pkp_search [type="submit"] {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.95);
    cursor: pointer;
    padding: 0 10px;
    transition: all 0.3s ease;
    font-size: 16px;
}

.pkp_search [type="submit"]:hover {
    color: #fff;
    transform: scale(1.1);
}

.pkp_search input[type="text"] {
    background: transparent;
    border: none;
    color: #fff;
    width: calc(100% - 40px);
    padding: 0 10px;
}

.pkp_search input[type="text"]:focus {
    outline: none;
}

/* ===========================
   📦 MODERN BLOCK STYLING
=========================== */
.pkp_block {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    border-radius: 12px;
    box-shadow: 
        0 4px 16px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 20px;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.pkp_block:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 8px 24px rgba(0, 0, 0, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.pkp_block .title {
    font-family: 'Segoe UI', sans-serif;
    font-size: 1.2rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(244, 210, 77, 0.3);
    text-align: center;
}

/* ===========================
   📄 MODERN ARTICLE SUMMARY
=========================== */
.obj_article_summary {
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.95) 0%,
        rgba(248, 250, 252, 0.9) 100%);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: 
        0 4px 20px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    border-radius: 16px;
    padding: 25px;
    margin-bottom: 25px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.obj_article_summary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #00a86b, #ffd700, #ff6b6b, #9370db);
    border-radius: 16px 16px 0 0;
}

.obj_article_summary:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 
        0 12px 40px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.obj_article_summary .title {
    font-family: 'Segoe UI', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 12px;
    line-height: 1.4;
}

.obj_article_summary .meta {
    color: #718096;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

/* ===========================
   🔘 MODERN BUTTONS
=========================== */
.cmp_button_wire, 
.obj_galley_link {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    border: none !important;
    color: #fff !important;
    padding: 12px 24px !important;
    border-radius: 8px !important;
    font-weight: 600 !important;
    transition: all 0.3s ease !important;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    position: relative;
    overflow: hidden;
}

.cmp_button_wire::before,
.obj_galley_link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.2), 
        transparent);
    transition: left 0.6s ease;
}

.cmp_button_wire:hover,
.obj_galley_link:hover {
    transform: translateY(-2px) !important;
    box-shadow: 
        0 8px 20px rgba(102, 126, 234, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.3) !important;
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%) !important;
    color: #fff !important;
}

.cmp_button_wire:hover::before,
.obj_galley_link:hover::before {
    left: 100%;
}

/* ===========================
   🎯 MODERN VERTICAL MENU
=========================== */
.vertical-menu {
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.95) 0%,
        rgba(248, 250, 252, 0.92) 100%);
    backdrop-filter: blur(25px);
    border-radius: 20px;
    box-shadow: 
        0 12px 40px rgba(0, 0, 0, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.8),
        0 0 0 1px rgba(255, 255, 255, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.5);
    overflow: hidden;
    margin: 15px 0;
    text-align: center;
}

.vertical-menu .menu-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 20px;
    font-family: 'Segoe UI', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    text-align: center;
    letter-spacing: 0.5px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
}

.vertical-menu .menu-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #fff, transparent);
    border-radius: 2px;
}

/* ISSN Image Container */
.vertical-menu .issn-container {
    padding: 25px 20px;
}

.vertical-menu .issn-item {
    display: block;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
    margin: 20px auto;
    border-radius: 16px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: 
        0 4px 20px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    max-width: 90%;
}

.vertical-menu .issn-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(102, 126, 234, 0.1), 
        transparent);
    transition: left 0.6s ease;
    border-radius: 16px;
}

.vertical-menu .issn-item:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 
        0 12px 35px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.9),
        0 0 0 2px rgba(102, 126, 234, 0.3);
    background: rgba(255, 255, 255, 0.8);
}

.vertical-menu .issn-item:hover::before {
    left: 100%;
}

.vertical-menu .issn-item:hover img {
    transform: scale(1.05);
    filter: brightness(1.1) drop-shadow(0 6px 12px rgba(0, 0, 0, 0.2));
}

.vertical-menu .issn-item img {
    height: 110px !important;
    width: 325px !important;
    border-radius: 12px;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    display: block;
    margin: 0 auto;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    object-fit: cover;
}

/* Regular Menu Links */
.vertical-menu a:not(.issn-item) {
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent !important;
    color: #4a5568 !important;
    padding: 18px 25px !important;
    text-decoration: none;
    font-family: 'Segoe UI', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
    text-align: center;
    margin: 0 auto;
}

.vertical-menu a:not(.issn-item):last-child {
    border-bottom: none;
}

.vertical-menu a:not(.issn-item)::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(102, 126, 234, 0.1), 
        transparent);
    transition: left 0.6s ease;
}

.vertical-menu a:not(.issn-item)::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transition: width 0.4s ease;
    border-radius: 1px;
}

.vertical-menu a:not(.issn-item):hover {
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.08) 0%,
        rgba(118, 75, 162, 0.08) 100%) !important;
    color: #2d3748 !important;
    transform: translateX(8px);
    padding-left: 35px !important;
    padding-right: 15px !important;
}

.vertical-menu a:not(.issn-item):hover::before {
    left: 100%;
}

.vertical-menu a:not(.issn-item):hover::after {
    width: 80%;
}

.vertical-menu a:not(.issn-item) .menu-icon {
    margin-right: 12px;
    font-size: 1.1rem;
    opacity: 0.7;
    transition: all 0.3s ease;
}

.vertical-menu a:not(.issn-item):hover .menu-icon {
    opacity: 1;
    transform: scale(1.2);
    color: #667eea;
}

.vertical-menu a:not(.issn-item).active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: #fff !important;
    box-shadow: 
        inset 0 2px 15px rgba(0, 0, 0, 0.15),
        0 4px 15px rgba(102, 126, 234, 0.3);
    transform: translateX(5px);
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.vertical-menu a:not(.issn-item).active::after {
    width: 90%;
    background: rgba(255, 255, 255, 0.8);
}

.vertical-menu a:not(.issn-item).active .menu-icon {
    color: #fff;
    opacity: 1;
    transform: scale(1.2);
}

/* ===========================
   🎯 MODERN CSS MENU
=========================== */
#cssmenu {
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.95) 0%,
        rgba(248, 250, 252, 0.92) 100%);
    backdrop-filter: blur(25px);
    border-radius: 20px;
    box-shadow: 
        0 12px 40px rgba(0, 0, 0, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.8),
        0 0 0 1px rgba(255, 255, 255, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.5);
    overflow: hidden;
    margin: 20px 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

#cssmenu > ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

#cssmenu > ul > li {
    position: relative;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

#cssmenu > ul > li:last-child {
    border-bottom: none;
}

#cssmenu > ul > li > a {
    display: flex;
    align-items: center;
    padding: 20px 25px;
    color: #2d3748;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    background: transparent;
}

#cssmenu > ul > li > a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

#cssmenu > ul > li > a::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(102, 126, 234, 0.05), 
        transparent);
    transition: left 0.6s ease;
}

#cssmenu > ul > li > a:hover {
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.08) 0%,
        rgba(118, 75, 162, 0.08) 100%);
    color: #2d3748;
    padding-left: 30px;
}

#cssmenu > ul > li > a:hover::before {
    transform: scaleX(1);
}

#cssmenu > ul > li > a:hover::after {
    left: 100%;
}

#cssmenu > ul > li:first-child > a {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    font-size: 1.3rem;
    font-weight: 700;
    text-align: center;
    justify-content: center;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

#cssmenu > ul > li:first-child > a::before {
    display: none;
}

#cssmenu > ul > li.active > a {
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.1) 0%,
        rgba(118, 75, 162, 0.1) 100%);
    color: #667eea;
    font-weight: 700;
}

#cssmenu > ul > li.active > a::before {
    transform: scaleX(1);
}

#cssmenu > ul > li.has-sub > a::after {
    content: '›';
    margin-left: auto;
    font-size: 1.4rem;
    transition: transform 0.3s ease;
    color: #a0aec0;
}

#cssmenu > ul > li.has-sub:hover > a::after {
    transform: rotate(90deg);
    color: #667eea;
}

#cssmenu > ul > li.active.has-sub > a::after {
    color: #667eea;
}

#cssmenu ul ul {
    display: none;
    background: rgba(248, 250, 252, 0.8);
    backdrop-filter: blur(15px);
    border-top: 1px solid rgba(0, 0, 0, 0.04);
    padding: 10px 0;
    margin: 0;
}

#cssmenu > ul > li:hover > ul,
#cssmenu > ul > li.active > ul {
    display: block;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#cssmenu ul ul li {
    border-bottom: none;
}

#cssmenu ul ul li a {
    display: flex;
    align-items: center;
    padding: 12px 25px 12px 40px;
    color: #4a5568;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    position: relative;
    border-left: 3px solid transparent;
}

#cssmenu ul ul li a::before {
    content: '•';
    position: absolute;
    left: 25px;
    color: #cbd5e0;
    transition: all 0.3s ease;
}

#cssmenu ul ul li a:hover {
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.06) 0%,
        rgba(118, 75, 162, 0.06) 100%);
    color: #2d3748;
    border-left-color: #667eea;
    padding-left: 45px;
}

#cssmenu ul ul li a:hover::before {
    color: #667eea;
    transform: scale(1.2);
}

#cssmenu ul ul li:last-child a {
    border-bottom: none;
}

#cssmenu a[target="_BLANK"]::after {
    content: '↗';
    margin-left: 8px;
    font-size: 0.8rem;
    opacity: 0.7;
}

#cssmenu a[target="_BLANK"]:hover::after {
    opacity: 1;
    transform: translate(2px, -2px);
}

/* ===========================
   ✨ MODERN UTILITIES
=========================== */
.meta .authors {
    background: none;
    font-weight: 600;
    color: #4a5568;
    margin-top: 8px;
    padding: 8px 0;
    border-left: 3px solid #00a86b;
    padding-left: 15px;
    background: rgba(0, 168, 107, 0.05);
    border-radius: 0 8px 8px 0;
}

.main_entry .item.abstract {
    text-align: justify;
    line-height: 1.7;
    color: #4a5568;
    background: rgba(255, 255, 255, 0.6);
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid #00a86b;
}

/* ===========================
   📱 RESPONSIVE DESIGN
=========================== */
@media (max-width: 1024px) {
    .pkp_head_wrapper .pkp_search {
        right: 100px;
        width: 240px;
    }
    
    .pkp_head_wrapper .pkp_search:focus {
        width: 280px;
    }
    
    .vertical-menu,
    #cssmenu {
        margin: 12px 0;
        border-radius: 18px;
    }
    
    .vertical-menu .menu-header,
    #cssmenu > ul > li:first-child > a {
        padding: 18px;
        font-size: 1.2rem;
    }
    
    .vertical-menu .issn-container {
        padding: 20px 15px;
    }
    
    .vertical-menu .issn-item {
        margin: 15px auto;
        max-width: 85%;
        padding: 18px;
    }
    
    .vertical-menu .issn-item img {
        height: 100px !important;
        width: 300px !important;
    }
    
    .vertical-menu a:not(.issn-item),
    #cssmenu > ul > li > a {
        padding: 16px 20px !important;
        font-size: 0.95rem;
    }
    
    #cssmenu ul ul li a {
        padding: 11px 22px 11px 35px;
        font-size: 0.92rem;
    }
}

@media (max-width: 768px) {
    .pkp_head_wrapper .pkp_search {
        position: relative;
        top: 0;
        right: 0;
        transform: none;
        display: block;
        margin: 15px auto;
        width: 90% !important;
        max-width: 400px;
    }
    
    .pkp_head_wrapper .pkp_search:focus {
        transform: none;
        width: 90% !important;
    }
    
    .pkp_structure_main {
        margin: 15px 0;
        padding: 20px;
        border-radius: 12px;
    }
    
    .pkp_navigation_primary_row .pkp_navigation_primary_wrapper ul {
        flex-direction: column;
        gap: 5px;
    }
    
    .pkp_navigation_primary_row .pkp_navigation_primary_wrapper ul li a {
        padding: 15px 20px !important;
        text-align: center;
    }
    
    .obj_article_summary {
        padding: 20px;
        margin-bottom: 20px;
    }
    
    .pkp_block {
        padding: 15px;
    }
    
    .vertical-menu,
    #cssmenu {
        margin: 10px 0;
        border-radius: 16px;
    }
    
    .vertical-menu .menu-header,
    #cssmenu > ul > li:first-child > a {
        padding: 16px;
        font-size: 1.1rem;
    }
    
    .vertical-menu .issn-container {
        padding: 15px 12px;
    }
    
    .vertical-menu .issn-item {
        margin: 12px auto;
        max-width: 90%;
        padding: 15px;
    }
    
    .vertical-menu .issn-item img {
        height: 90px !important;
        width: 280px !important;
    }
    
    .vertical-menu a:not(.issn-item),
    #cssmenu > ul > li > a {
        padding: 14px 18px !important;
        font-size: 0.9rem;
    }
    
    #cssmenu ul ul li a {
        padding: 10px 20px 10px 30px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .pkp_head_wrapper .pkp_search {
        height: 44px;
        font-size: 13px;
        margin: 12px auto;
        width: 95% !important;
    }
    
    .pkp_structure_main {
        margin: 10px 0;
        padding: 15px;
        border-radius: 10px;
    }
    
    .obj_article_summary {
        padding: 15px;
    }
    
    .cmp_button_wire, 
    .obj_galley_link {
        padding: 10px 20px !important;
        width: 100%;
        text-align: center;
    }
    
    .vertical-menu,
    #cssmenu {
        margin: 8px 0;
        border-radius: 14px;
    }
    
    .vertical-menu .menu-header,
    #cssmenu > ul > li:first-child > a {
        padding: 14px;
        font-size: 1rem;
    }
    
    .vertical-menu .menu-header::after {
        width: 50px;
    }
    
    .vertical-menu .issn-container {
        padding: 12px 10px;
    }
    
    .vertical-menu .issn-item {
        margin: 10px auto;
        padding: 12px;
        max-width: 95%;
    }
    
    .vertical-menu .issn-item img {
        height: 80px !important;
        width: 250px !important;
    }
    
    .vertical-menu a:not(.issn-item),
    #cssmenu > ul > li > a {
        padding: 12px 15px !important;
        font-size: 0.85rem;
    }
    
    #cssmenu ul ul li a {
        padding: 9px 18px 9px 28px;
        font-size: 0.85rem;
    }
}

/* ===========================
   🎭 ANIMATIONS & EFFECTS
=========================== */
@keyframes searchPulse {
    0% { box-shadow: 0 6px 25px rgba(0, 0, 0, 0.15); }
    50% { box-shadow: 0 6px 25px rgba(255, 255, 255, 0.1); }
    100% { box-shadow: 0 6px 25px rgba(0, 0, 0, 0.15); }
}

.pkp_head_wrapper .pkp_search:not(:focus) {
    animation: searchPulse 3s ease-in-out infinite;
}

@keyframes issnFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.vertical-menu .issn-item {
    animation: issnFadeIn 0.6s ease-out forwards;
}

.vertical-menu .issn-item:nth-child(1) { animation-delay: 0.1s; }
.vertical-menu .issn-item:nth-child(2) { animation-delay: 0.2s; }

@keyframes menuItemFadeIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.vertical-menu a,
#cssmenu > ul > li {
    animation: menuItemFadeIn 0.5s ease-out forwards;
}

.vertical-menu a:nth-child(2),
#cssmenu > ul > li:nth-child(2) { animation-delay: 0.1s; }
.vertical-menu a:nth-child(3),
#cssmenu > ul > li:nth-child(3) { animation-delay: 0.2s; }
.vertical-menu a:nth-child(4),
#cssmenu > ul > li:nth-child(4) { animation-delay: 0.3s; }
.vertical-menu a:nth-child(5),
#cssmenu > ul > li:nth-child(5) { animation-delay: 0.4s; }

/* ===========================
   🎯 ACCESSIBILITY
=========================== */
.pkp_head_wrapper .pkp_search:focus,
.vertical-menu .issn-item:focus,
.vertical-menu a:focus,
#cssmenu a:focus {
    outline: 2px solid rgba(102, 126, 234, 0.8);
    outline-offset: 2px;
}

.pkp_navigation_primary_row .pkp_navigation_primary_wrapper ul li a:focus,
.cmp_button_wire:focus,
.obj_galley_link:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .pkp_head_wrapper .pkp_search {
        border: 2px solid #fff;
        background: rgba(0, 0, 0, 0.7);
    }
    
    .vertical-menu,
    #cssmenu {
        border: 2px solid #667eea;
    }
    
    .vertical-menu .issn-item {
        border: 2px solid #4a5568;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .pkp_head_wrapper .pkp_search,
    .vertical-menu .issn-item,
    .vertical-menu a,
    #cssmenu > ul > li,
    #cssmenu > ul > li > a,
    .pkp_block,
    .obj_article_summary,
    .cmp_button_wire,
    .obj_galley_link {
        transition: none;
        animation: none;
    }
    
    .pkp_head_wrapper .pkp_search:focus {
        transform: translateY(-50%);
    }
    
    .vertical-menu .issn-item:hover,
    .vertical-menu a:hover,
    #cssmenu > ul > li > a:hover {
        transform: none;
    }
}

/* ===========================
   🎨 GLASS MORPHISM EFFECTS
=========================== */
.glass-effect {
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* Smooth transitions for all interactive elements */
.pkp_block,
.obj_article_summary,
.vertical-menu a,
.cmp_button_wire,
.obj_galley_link,
#cssmenu > ul > li > a {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}