@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

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

        :root {
            --primary-green: #249703;
            --primary-lime: #249703;
            --text-dark: #0a0a0a;
            --text-light: #f8fafc;
            --glass-bg: rgba(255, 255, 255, 0.08);
            --glass-border: rgba(255, 255, 255, 0.12);
            --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
            --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
            --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            background: linear-gradient(135deg, #161616 0%, #020208 25%, #000000 50%, #020207 100%);
            background-size: 400% 400%;
            animation: gradientFlow 15s ease infinite;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: var(--text-light);
            overflow: hidden;
            position: relative;
        }

        @keyframes gradientFlow {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        /* Efectos de fondo mejorados */
        .background-effects {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 0;
        }

        .floating-orbs {
            position: absolute;
            width: 100%;
            height: 100%;
        }

        .orb {
            position: absolute;
            border-radius: 50%;
            filter: blur(2px);
            opacity: 0.7;
            animation: floatOrb 20s ease-in-out infinite;
        }

        .orb:nth-child(1) {
            width: 300px;
            height: 300px;
            background: var(--gradient-1);
            top: 10%;
            left: -10%;
            animation-delay: 0s;
        }

        .orb:nth-child(2) {
            width: 200px;
            height: 200px;
            background: var(--gradient-2);
            top: 60%;
            right: -5%;
            animation-delay: 7s;
        }

        .orb:nth-child(3) {
            width: 150px;
            height: 150px;
            background: var(--gradient-3);
            bottom: 20%;
            left: 20%;
            animation-delay: 14s;
        }

        @keyframes floatOrb {
            0%, 100% {
                transform: translateY(0px) translateX(0px) scale(1);
            }
            33% {
                transform: translateY(-30px) translateX(20px) scale(1.1);
            }
            66% {
                transform: translateY(20px) translateX(-15px) scale(0.9);
            }
        }

        .grid-pattern {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: 
                linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
            background-size: 50px 50px;
            animation: gridMove 30s linear infinite;
        }

        @keyframes gridMove {
            0% { transform: translate(0, 0); }
            100% { transform: translate(50px, 50px); }
        }

        /* Header con logo */
        .error-header {
            position: absolute;
            top: 2rem;
            left: 50%;
            transform: translateX(-50%);
            z-index: 10;
        }

        .logo img {
            height: 150px;
            filter: drop-shadow(0 10px 25px rgba(0,0,0,0.3));
            transition: all 0.3s ease;
        }

        .logo:hover img {
            transform: scale(1.05);
            filter: drop-shadow(0 15px 35px rgba(0,0,0,0.4));
        }

        /* Contenido principal */
        .error-container {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 3rem 2rem;
            backdrop-filter: blur(20px);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: 32px;
            box-shadow: var(--shadow-lg);
            max-width: 600px;
            margin: 0 1rem;
            margin-top: 100px; /* espacio para el logo */
            animation: slideInUp 1s ease-out;
        }

        @keyframes slideInUp {
            0% {
                opacity: 0;
                transform: translateY(30px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .error-number {
            font-size: clamp(4rem, 10vw, 5rem);
            font-weight: 900;
            background: linear-gradient(135deg, var(--primary-green), var(--primary-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 0.9;
            margin-bottom: 1.5rem;
            position: relative;
            animation: glitch 3s ease-in-out infinite;
        }

        @keyframes glitch {
            0%, 100% { transform: translateX(0); }
            20% { transform: translateX(-2px); }
            40% { transform: translateX(2px); }
            60% { transform: translateX(-1px); }
            80% { transform: translateX(1px); }
        }

        .error-title {
            font-size: clamp(1.5rem, 4vw, 2.5rem);
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }

        .error-message {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 0.5rem;
            font-weight: 400;
            line-height: 1.6;
        }

        .error-subtext {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 3rem;
            font-weight: 300;
        }

        /* Botón mejorado */
        .back-home-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            padding: 1rem 2.5rem;
            background: linear-gradient(135deg, var(--primary-green), var(--primary-lime));
            color: white;
            text-decoration: none;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            box-shadow: 0 20px 40px rgba(36, 151, 3, 0.3);
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            position: relative;
            overflow: hidden;
        }

        .back-home-btn::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 0.5s;
        }

        .back-home-btn:hover::before {
            left: 100%;
        }

        .back-home-btn:hover {
            transform: translateY(-3px) scale(1.05);
            box-shadow: 0 25px 50px rgba(36, 151, 3, 0.4);
        }

        .back-home-btn:active {
            transform: translateY(-1px) scale(1.02);
        }

        .arrow-icon {
            transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        }

        .back-home-btn:hover .arrow-icon {
            transform: translateX(5px) scale(1.1);
        }

        /* Elementos decorativos */
        .decorative-elements {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
        }

        .sparkle {
            position: absolute;
            width: 6px;
            height: 6px;
            background: white;
            border-radius: 50%;
            animation: sparkle 2s ease-in-out infinite;
        }

        .sparkle:nth-child(1) { top: 20%; left: 15%; animation-delay: 0s; }
        .sparkle:nth-child(2) { top: 30%; right: 20%; animation-delay: 0.5s; }
        .sparkle:nth-child(3) { bottom: 25%; left: 25%; animation-delay: 1s; }
        .sparkle:nth-child(4) { bottom: 35%; right: 15%; animation-delay: 1.5s; }

        @keyframes sparkle {
            0%, 100% {
                opacity: 0;
                transform: scale(0);
            }
            50% {
                opacity: 1;
                transform: scale(1);
            }
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .error-container {
                padding: 2rem 1.5rem;
                margin: 0 1rem;
            }
            
            .error-title {
                font-size: 1.8rem;
            }
            
            .error-message {
                font-size: 1.1rem;
            }
            
            .back-home-btn {
                padding: 0.9rem 2rem;
                font-size: 0.95rem;
            }
        }

        @media (max-width: 480px) {
            .error-header {
                top: 1rem;
            }
            
            .logo img {
                height: 60px;
            }
            
            .error-container {
                padding: 2rem 1rem;
            }
        }

        /* Preloading animation */
        @keyframes fadeIn {
            from {
                opacity: 0;
            }
            to {
                opacity: 1;
            }
        }

        body {
            animation: fadeIn 0.5s ease-in;
        }
        /* Responsive Design */
        @media (max-width: 768px) {
            .error-container {
                padding: 2rem 1.5rem;
                margin: 150px 1rem 0; /* reduce margen superior en pantallas medianas */
            }
            
            .error-title {
                font-size: 1.8rem;
            }
            
            .error-message {
                font-size: 1.1rem;
            }
            
            .back-home-btn {
                padding: 0.9rem 2rem;
                font-size: 0.95rem;
            }
        }

        @media (max-width: 480px) {
            .error-header {
                top: 1rem;
            }
            
            .logo img {
                height: 60px;
            }
            
            .error-container {
                padding: 2rem 1rem;
                margin-top: 120px; /* menos espacio en móviles */
            }
        }