* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            line-height: 1.6;
            color: #1e293b;
            background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header */
        .header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid #e2e8f0;
            position: sticky;
            top: 0;
            z-index: 100;
            transition: all 0.3s ease;
        }

        .nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            background: linear-gradient(135deg, #059669, #0891b2);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }

        .nav-links a {
            text-decoration: none;
            color: #475569;
            font-weight: 500;
            transition: all 0.3s ease;
            position: relative;
        }

        .nav-links a:hover {
            color: #059669;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(135deg, #059669, #0891b2);
            transition: width 0.3s ease;
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .cta-button {
            background: linear-gradient(135deg, #059669, #0891b2);
            color: white;
            padding: 0.75rem 1.5rem;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }

        .cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(5, 150, 105, 0.3);
        }

        /* Main Content */
        .main-content {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 4rem 0;
            text-align: center;
        }

        .error-container {
            text-align: center !important;
            max-width: 600px;
            margin: 0 auto;
        }

        .error-code {
            font-size: 8rem;
            font-weight: 700;
            background: linear-gradient(135deg, #059669, #0891b2);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1rem;
            line-height: 1;
        }

        .error-title {
            font-size: 2.5rem;
            font-weight: 700;
            color: #1e293b;
            margin-bottom: 1rem;
        }

        .error-description {
            font-size: 1.25rem;
            color: #64748b;
            margin-bottom: 3rem;
            line-height: 1.6;
        }

        .error-actions {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 3rem;
        }

        .action-btn {
            padding: 1rem 2rem;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .action-btn.primary {
            background: linear-gradient(135deg, #059669, #0891b2);
            color: white;
        }

        .action-btn.secondary {
            background: white;
            color: #64748b;
            border: 2px solid #e2e8f0;
        }

        .action-btn:hover {
            transform: translateY(-2px);
        }

        .action-btn.primary:hover {
            box-shadow: 0 10px 25px rgba(5, 150, 105, 0.3);
        }

        .action-btn.secondary:hover {
            border-color: #059669;
            color: #059669;
        }

        /* Search Section */
        .search-section {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
            border: 1px solid #f1f5f9;
            margin-bottom: 3rem;
        }

        .search-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: #1e293b;
            margin-bottom: 1rem;
        }

        .search-form {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .search-input {
            flex: 1;
            min-width: 300px;
            padding: 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 8px;
            font-size: 1rem;
            transition: all 0.3s ease;
        }

        .search-input:focus {
            outline: none;
            border-color: #059669;
            box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.1);
        }

        .search-button {
            background: linear-gradient(135deg, #059669, #0891b2);
            color: white;
            padding: 1rem 2rem;
            border-radius: 8px;
            border: none;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 1rem;
        }

        .search-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(5, 150, 105, 0.3);
        }

        /* Popular Links */
        .popular-links {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
            border: 1px solid #f1f5f9;
        }

        .popular-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: #1e293b;
            margin-bottom: 1.5rem;
        }

        .links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
        }

        .link-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 1rem;
            background: #f8fafc;
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            text-decoration: none;
            color: #1e293b;
            transition: all 0.3s ease;
        }

        .link-item:hover {
            background: white;
            border-color: #059669;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }

        .link-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #059669, #0891b2);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .link-content {
            flex: 1;
        }

        .link-title {
            font-weight: 600;
            margin-bottom: 0.25rem;
        }

        .link-description {
            font-size: 0.9rem;
            color: #64748b;
        }

        /* Floating Elements */
        .floating-element {
            position: absolute;
            opacity: 0.1;
            pointer-events: none;
            animation: float 6s ease-in-out infinite;
        }

        .floating-element:nth-child(1) {
            top: 20%;
            left: 10%;
            animation-delay: 0s;
        }

        .floating-element:nth-child(2) {
            top: 60%;
            right: 15%;
            animation-delay: 2s;
        }

        .floating-element:nth-child(3) {
            bottom: 30%;
            left: 20%;
            animation-delay: 4s;
        }

        @keyframes float {
            0%, 100% {
                transform: translateY(0px);
            }
            50% {
                transform: translateY(-20px);
            }
        }

        /* Footer */
        .footer {
            background: #1e293b;
            color: white;
            padding: 2rem 0 1rem;
            margin-top: auto;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 1rem;
        }

        .footer-section h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: #10b981;
        }

        .footer-section ul {
            list-style: none;
        }

        .footer-section ul li {
            margin-bottom: 0.5rem;
        }

        .footer-section ul li a {
            color: #f9fafb;
            text-decoration: none;
            transition: color 0.3s ease;
            font-size: 0.9rem;
        }

        .footer-section ul li a:hover {
            color: #10b981;
        }

        .footer-bottom {
            border-top: 1px solid #334155;
            padding-top: 1rem;
            text-align: center;
            color: #94a3b8;
            font-size: 0.9rem;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .error-code {
                font-size: 6rem;
            }

            .error-title {
                font-size: 2rem;
            }

            .error-description {
                font-size: 1.1rem;
            }

            .error-actions {
                flex-direction: column;
                align-items: center;
            }

            .action-btn {
                width: 100%;
                max-width: 300px;
                justify-content: center;
            }

            .search-form {
                flex-direction: column;
            }

            .search-input {
                min-width: auto;
            }

            .links-grid {
                grid-template-columns: 1fr;
            }

            .footer-content {
                grid-template-columns: 1fr;
                text-align: center;
            }
        }

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

        .fade-in-up {
            animation: fadeInUp 0.6s ease-out;
        }

        .stagger-1 { animation-delay: 0.1s; }
        .stagger-2 { animation-delay: 0.2s; }
        .stagger-3 { animation-delay: 0.3s; }
        .stagger-4 { animation-delay: 0.4s; }

        /* Pulse animation for error code */
        @keyframes pulse {
            0%, 100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.05);
            }
        }

        .error-code {
            animation: pulse 3s ease-in-out infinite;
        }