@keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease-out;
        }
        .gradient-bg {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
        }
        .card-hover {
            transition: all 0.3s ease;
            border-radius: 8px;
            border: 1px solid #334155;
            background: #1e293b;
            color: #ffffff;
        }
        .card-hover:hover {
            transform: translateY(-3px);
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            border-color: #4f46e5;
        }
        .text-description {
            text-align: justify;
            hyphens: auto;
            line-height: 1.6;
            color: #e5e7eb;
        }
        body {
            --font-family: "Roboto",sans-serif;
            --font-family-condensed: "Roboto Condensed",sans-serif;
            font-family: var(--font-family);
            color: #ffffff;
            background: #0f172a;
        }
        .text-gray-300 {
            color: #d1d5db !important;
        }
        .text-gray-200 {
            color: #e5e7eb !important;
        }
        .text-gray-600 {
            color: #4b5563 !important;
        }
        .text-gray-700 {
            color: #374151 !important;
        }
        .text-gray-800 {
            color: #1f2937 !important;
        }
.nav-link {
    font-weight: 500;
    position: relative;
    text-decoration: none;
    color: #d1d5db;
    padding: 0.5rem 0.75rem;
}

.nav-link:hover {
    color: #60a5fa;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%); /* центрируем линию */
    width: 40px; /* ≈1.6 см — идеально подходит под меню */
    height: 2px;
    background-color: #3b82f6;
    border-radius: 1px;
}
		        /* Improved Language dropdown styles */
        .language-dropdown {
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.2s ease, visibility 0.2s ease;
            transform: translateY(10px);
            transition: all 0.3s ease;
        }
        .language-group:hover .language-dropdown {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .language-group {
            position: relative;
        }
        .language-dropdown a:hover {
            background: #4f46e5 !important;
            color: white !important;
        }
        .btn-primary {
            background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
            transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            border: none;
            box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, #4338ca 0%, #6d28d9 100%);
            transform: translateY(-1px);
        }
        .crypto-badge {
            background: rgba(56, 139, 253, 0.1);
            border: 1px solid #3b82f6;
            color: #3b82f6;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 600;
        }