:root {
            --primary: #2c5aa0;
            --primary-light: #3a6bc8;
            --secondary: #f8f9fa;
            --accent: #ff6b35;
            --accent-light: #ff8a65;
            --dark: #2d3748;
            --light: #ffffff;
            --gray: #718096;
            --gradient: linear-gradient(135deg, #2c5aa0 0%, #3a6bc8 100%);
            --gradient-accent: linear-gradient(135deg, #ff6b35 0%, #ff8a65 100%);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', sans-serif;
        }
        
        body {
            background: var(--light);
            color: var(--dark);
            line-height: 1.6;
            overflow-x: hidden;
        }
        
        /* Glass Header */
        .glass-header {
            top: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(44, 90, 160, 0.1);
            z-index: 1000;
            padding: 12px 0;
            transition: all 0.3s ease;
        }
        
        .header-scrolled {
            box-shadow: 0 5px 30px rgba(0, 0, 0, 0.1);
        }
        
        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 15px;
            text-decoration: none;
        }
        
        .logo-img {
            width: 50px;
            height: 50px;
            background: var(--gradient);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 800;
            font-size: 1.2rem;
        }
        
        .logo-text h1 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        
        .logo-text p {
            font-size: 0.8rem;
            color: var(--gray);
        }

        /* Main Navigation */
        .nav-main {
            display: flex;
            gap: 5px;
            align-items: center;
        }

        .nav-link {
            color: var(--dark);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.9rem;
            padding: 8px 16px;
            border-radius: 6px;
            transition: all 0.3s ease;
            position: relative;
            white-space: nowrap;
        }

        .nav-link:hover {
            background: var(--primary);
            color: white;
        }

        .dropdown {
            position: relative;
        }

        .dropdown-menu {
            position: absolute;
            top: 100%;
            left: 0;
            background: white;
            min-width: 220px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            border-radius: 8px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.3s ease;
            z-index: 1000;
        }

        .dropdown:hover .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .dropdown-item {
            display: block;
            padding: 12px 20px;
            color: var(--dark);
            text-decoration: none;
            border-bottom: 1px solid #f0f0f0;
            transition: all 0.3s ease;
            font-size: 0.9rem;
        }

        .dropdown-item:hover {
            background: var(--primary);
            color: white;
        }

        .dropdown-item:last-child {
            border-bottom: none;
        }

        /* Language Switcher */
        .lang-switcher {
            display: flex;
            gap: 5px;
            margin-left: 20px;
        }

        .lang-btn {
            padding: 5px 10px;
            border: 1px solid var(--primary);
            border-radius: 4px;
            color: var(--primary);
            text-decoration: none;
            font-size: 0.8rem;
            transition: all 0.3s ease;
        }

        .lang-btn:hover {
            background: var(--primary);
            color: white;
        }
        
        /* Mobile Menu Button */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
            z-index: 1001;
        }
        
        /* Seminars Page Styles */
        .seminars-hero {
            background: var(--gradient);
            color: white;
            padding: 150px 0 80px;
            text-align: center;
        }
        
        .seminars-hero h1 {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 20px;
        }
        
        .seminars-hero p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto;
            opacity: 0.9;
        }
        
        .seminars-content {
            padding: 80px 0;
        }
        
        .seminars-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .seminars-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
            gap: 30px;
            margin-bottom: 50px;
        }
        
        .seminar-card {
            background: white;
            border-radius: 20px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            border-left: 5px solid var(--accent);
        }
        
        .seminar-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 4px;
            background: var(--gradient-accent);
            transition: left 0.3s ease;
        }
        
        .seminar-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
        }
        
        .seminar-card:hover::before {
            left: 0;
        }
        
        .seminar-date {
            background: var(--gradient);
            color: white;
            padding: 8px 16px;
            border-radius: 20px;
            display: inline-block;
            margin-bottom: 20px;
            font-size: 0.9rem;
            font-weight: 600;
        }
        
        .seminar-title {
            font-size: 1.4rem;
            font-weight: 600;
            margin-bottom: 15px;
            color: var(--primary);
            line-height: 1.4;
        }
        
        .seminar-goal {
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 10px;
            font-size: 1rem;
        }
        
        .seminar-description {
            color: var(--gray);
            margin-bottom: 20px;
            line-height: 1.6;
        }
        
        .seminar-link {
            color: var(--accent);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        
        .seminar-link:hover {
            color: var(--accent-light);
            transform: translateX(5px);
        }
        
        .seminars-pagination {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-top: 50px;
        }
        
        .page-btn {
            padding: 12px 20px;
            background: white;
            border: 2px solid var(--primary);
            border-radius: 8px;
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
        }
        
        .page-btn:hover,
        .page-btn.active {
            background: var(--primary);
            color: white;
        }
        
        /* Footer */
        footer {
            background: var(--dark);
            color: white;
            padding: 40px 0;
            text-align: center;
        }
        
        /* Responsive Styles */
        @media (max-width: 1024px) {
            .nav-main {
                display: none;
            }
            
            .mobile-menu-btn {
                display: block;
            }
        }
        
        @media (max-width: 768px) {
            .seminars-hero {
                padding: 120px 0 60px;
            }
            
            .seminars-hero h1 {
                font-size: 2.2rem;
            }
            
            .seminars-hero p {
                font-size: 1rem;
            }
            
            .seminars-grid {
                grid-template-columns: 1fr;
                gap: 25px;
            }
            
            .seminar-card {
                padding: 25px 20px;
            }
            
            .seminar-title {
                font-size: 1.2rem;
            }
        }
        
        @media (max-width: 480px) {
            .seminars-hero h1 {
                font-size: 1.8rem;
            }
        }

        /* Animation */
        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }