/* Modern OJS Theme - RGB(10,50,100) Color Scheme */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --primary: rgb(10, 50, 100);
  --primary-dark: rgb(8, 40, 80);
  --primary-light: rgb(20, 70, 130);
  --accent: rgb(255, 215, 0);
  --accent-hover: rgb(255, 230, 50);
  --text-light: #ffffff;
  --text-dark: #2c3e50;
  --bg-hover: #ffffff;
  --shadow: rgba(10, 50, 100, 0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Styles */
body {
  font-family: 'Inter', 'Segoe UI', Tahoma, sans-serif !important;
  line-height: 1.6;
}

/* Main Navigation Container */
.pkp_navigation_primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%) !important;
  padding: 0 !important;
  box-shadow: 0 4px 20px var(--shadow) !important;
  border-bottom: 3px solid var(--accent) !important;
  position: relative;
}

.pkp_navigation_primary > ul {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 !important;
  padding: 0 !important;
  list-style: none !important;
}

/* Menu Items */
.pkp_navigation_primary > ul > li {
  position: relative;
  margin: 0 !important;
}

.pkp_navigation_primary > ul > li > a {
  color: var(--text-light) !important;
  font-weight: 600 !important;
  font-size: 0.95em !important;
  padding: 18px 24px !important;
  text-decoration: none !important;
  transition: var(--transition) !important;
  position: relative;
  display: block;
  border-radius: 8px 8px 0 0;
  margin: 8px 2px 0 2px;
  letter-spacing: 0.3px;
}

/* Hover Effect */
.pkp_navigation_primary > ul > li > a:hover {
  background: var(--bg-hover) !important;
  color: var(--text-dark) !important;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(10, 50, 100, 0.2);
  border-radius: 8px;
  margin: 8px 2px;
}

/* Active Menu Item */
.pkp_navigation_primary > ul > li > a.current {
  background: rgba(255, 255, 255, 0.15) !important;
  color: var(--text-light) !important;
  position: relative;
}

.pkp_navigation_primary > ul > li > a.current::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}

/* Dropdown Menus */
.pkp_navigation_primary ul ul {
  background: var(--bg-hover) !important;
  border: none !important;
  border-radius: 12px !important;
  box-shadow: 0 10px 30px rgba(10, 50, 100, 0.15) !important;
  padding: 8px 0 !important;
  margin-top: 8px !important;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(10, 50, 100, 0.1) !important;
}

.pkp_navigation_primary ul ul li {
  margin: 0 !important;
}

.pkp_navigation_primary ul ul a {
  color: var(--text-dark) !important;
  padding: 12px 20px !important;
  font-weight: 500 !important;
  transition: var(--transition) !important;
  border-radius: 6px !important;
  margin: 2px 8px !important;
  font-size: 0.9em !important;
}

.pkp_navigation_primary ul ul a:hover {
  background: linear-gradient(135deg, var(--primary), var(--primary-light)) !important;
  color: var(--text-light) !important;
  transform: translateX(5px);
  box-shadow: 0 4px 12px rgba(10, 50, 100, 0.2);
}

/* User Navigation */
.pkp_navigation_user {
  background: var(--primary-dark) !important;
  padding: 12px 0 !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1) !important;
}

.pkp_navigation_user ul {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  margin: 0 !important;
  padding: 0 20px !important;
  list-style: none !important;
}

.pkp_navigation_user li {
  margin-left: 15px !important;
}

.pkp_navigation_user a {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 500 !important;
  font-size: 0.9em !important;
  text-decoration: none !important;
  transition: var(--transition) !important;
  padding: 8px 16px;
  border-radius: 6px;
}

.pkp_navigation_user a:hover {
  color: var(--text-light) !important;
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-1px);
}

/* Search Box */
.pkp_navigation_search {
  margin-left: 20px !important;
}

.pkp_navigation_search input[type="text"] {
  background: rgba(255, 255, 255, 0.1) !important;
  border: 1px solid rgba(255, 255, 255, 0.3) !important;
  border-radius: 20px !important;
  padding: 8px 16px !important;
  color: var(--text-light) !important;
  font-size: 0.9em !important;
  transition: var(--transition) !important;
  backdrop-filter: blur(10px);
}

.pkp_navigation_search input[type="text"]::placeholder {
  color: rgba(255, 255, 255, 0.7) !important;
}

.pkp_navigation_search input[type="text"]:focus {
  background: rgba(255, 255, 255, 0.15) !important;
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.2) !important;
  outline: none !important;
  color: var(--text-light) !important;
}

/* Login/Register Buttons */
.pkp_navigation_user a[href*="login"],
.pkp_navigation_user a[href*="register"] {
  background: linear-gradient(135deg, var(--accent), var(--accent-hover)) !important;
  color: var(--primary) !important;
  font-weight: 600 !important;
  box-shadow: 0 4px 12px rgba(255, 215, 0, 0.3);
  border-radius: 20px !important;
  padding: 8px 20px !important;
}

.pkp_navigation_user a[href*="login"]:hover,
.pkp_navigation_user a[href*="register"]:hover {
  background: linear-gradient(135deg, var(--accent-hover), var(--accent)) !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
  color: var(--primary) !important;
}

/* Page Header */
.pkp_page_header {
  background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%) !important;
  border-bottom: 2px solid var(--primary) !important;
  padding: 30px 0 !important;
}

/* Journal Title */
.journal_title {
  color: var(--primary) !important;
  font-weight: 800 !important;
  font-size: 2.5em !important;
  text-align: center;
  margin-bottom: 10px !important;
}

.journal_title a {
  color: var(--primary) !important;
  text-decoration: none !important;
}

/* Breadcrumb */
.breadcrumb {
  background: transparent !important;
  padding: 0 !important;
  margin: 15px 0 0 0 !important;
  justify-content: center;
}

.breadcrumb-item + .breadcrumb-item::before {
  color: var(--primary) !important;
}

.breadcrumb a {
  color: var(--primary) !important;
  font-weight: 500 !important;
  text-decoration: none !important;
  transition: var(--transition) !important;
}

.breadcrumb a:hover {
  color: var(--primary-light) !important;
}

/* Main Content */
.pkp_structure_main {
  padding: 40px 0 !important;
}

.pkp_structure_content {
  border-left: 3px solid var(--primary) !important;
  min-height: 600px !important;
}

/* Sidebar Blocks */
.pkp_block {
  background: white !important;
  border: 1px solid #e9ecef !important;
  border-radius: 12px !important;
  margin-bottom: 25px !important;
  box-shadow: 0 4px 15px var(--shadow) !important;
  overflow: hidden !important;
  transition: var(--transition) !important;
}

.pkp_block:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(10, 50, 100, 0.15) !important;
}

.pkp_block_title {
  background: linear-gradient(135deg, var(--primary), var(--primary-light)) !important;
  color: white !important;
  font-weight: 700 !important;
  font-size: 1.1em !important;
  padding: 18px 20px !important;
  margin: 0 !important;
  border-bottom: 2px solid var(--accent) !important;
}

.pkp_block_content {
  padding: 20px !important;
  background: white !important;
}

/* Buttons */
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light)) !important;
  border: none !important;
  color: white !important;
  font-weight: 600 !important;
  padding: 12px 28px !important;
  border-radius: 8px !important;
  transition: var(--transition) !important;
  box-shadow: 0 4px 12px rgba(10, 50, 100, 0.3) !important;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-light), var(--primary)) !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 6px 20px rgba(10, 50, 100, 0.4) !important;
  color: white !important;
}

/* Footer */
.pkp_structure_footer {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary)) !important;
  color: white !important;
  padding: 50px 0 25px !important;
  margin-top: 60px !important;
  border-top: 4px solid var(--accent) !important;
}

/* Mobile Menu Toggle */
.pkp_site_nav_toggle {
  background: var(--primary) !important;
  border: 2px solid var(--primary) !important;
  color: white !important;
  border-radius: 8px !important;
  padding: 10px 15px !important;
  transition: var(--transition) !important;
}

.pkp_site_nav_toggle:hover {
  background: white !important;
  color: var(--primary) !important;
  transform: translateY(-2px);
}

/* Mobile Responsive */
@media (max-width: 991px) {
  .pkp_navigation_primary > ul {
    flex-direction: column;
    padding: 10px 0 !important;
  }
  
  .pkp_navigation_primary > ul > li {
    width: 100%;
  }
  
  .pkp_navigation_primary > ul > li > a {
    border-radius: 0 !important;
    margin: 0 !important;
    padding: 15px 20px !important;
    text-align: right;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .pkp_navigation_primary > ul > li > a:hover {
    border-radius: 0 !important;
    margin: 0 !important;
    transform: none;
  }
  
  .pkp_navigation_primary > ul > li > a.current::after {
    left: 0;
    transform: none;
    width: 4px;
    height: 100%;
    bottom: 0;
  }
  
  .pkp_navigation_user ul {
    justify-content: center;
    flex-wrap: wrap;
  }
  
  .pkp_navigation_user li {
    margin: 5px !important;
  }
  
  .pkp_structure_content {
    border-left: none !important;
    border-top: 3px solid var(--primary) !important;
  }
  
  .journal_title {
    font-size: 2em !important;
  }
}

@media (max-width: 768px) {
  .pkp_navigation_search {
    margin: 15px 0 !important;
    width: 100%;
  }
  
  .pkp_navigation_search input[type="text"] {
    width: 100% !important;
  }
}

/* Animations */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.pkp_navigation_primary > ul > li {
  animation: fadeInDown 0.6s ease-out;
}

.pkp_navigation_primary ul ul {
  animation: slideInRight 0.3s ease-out;
}

/* Hover Effects Enhancement */
.pkp_navigation_primary > ul > li > a::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: var(--transition);
}

.pkp_navigation_primary > ul > li > a:hover::before {
  width: 100%;
  height: 100%;
  border-radius: 8px;
}