body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    font-family: 'Arial', sans-serif;
    overflow: hidden;
}

.error-container {
    text-align: center;
    background: rgba(255, 255, 255, 0.95);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    max-width: 600px;
    animation: fadeIn 1s ease-in-out;
}

h1 {
    font-size: 48px;
    color: #333;
    margin-bottom: 20px;
    animation: slideIn 0.5s ease-in-out;
}

p {
    font-size: 20px;
    color: #555;
    margin-bottom: 30px;
    line-height: 1.5;
}

.btn {
    display: inline-block;
    padding: 15px 30px;
    background: #ff6b6b;
    color: white;
    text-decoration: none;
    font-size: 18px;
    font-weight: bold;
    border-radius: 25px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes slideIn {
    from { transform: translateY(-20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

canvas {
    position: fixed;
    top: 0;
    left: 0;
    z-index: -1;
}