* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #ff6f61, #ffb347);
    color: #333;
}

.error-container {
    text-align: center;
    max-width: 600px;
    padding: 40px;
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

    .error-container::before {
        content: "404";
        position: absolute;
        top: -60px;
        left: -60px;
        font-size: 220px;
        color: rgba(255, 112, 77, 0.1);
        font-weight: bold;
        z-index: 0;
    }

    .error-container h1 {
        font-size: 48px;
        color: #ff6f61;
        margin-bottom: 10px;
        z-index: 1;
    }

    .error-container p {
        font-size: 18px;
        color: #555;
        margin-bottom: 30px;
        z-index: 1;
        position: relative;
    }

    .error-container img {
        max-width: 80px;
        margin: 15px;
        opacity: 0.9;
        animation: float 2s ease-in-out infinite;
        z-index: 1;
    }

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.btn-home {
    display: inline-block;
    text-decoration: none;
    color: #fff;
    background-color: #ff6f61;
    padding: 12px 25px;
    border-radius: 50px;
    font-weight: bold;
    transition: background-color 0.3s, transform 0.2s;
    z-index: 1;
}

    .btn-home:hover {
        background-color: #ff8567;
        transform: scale(1.05);
    }

.icons {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 20px;
    position: relative;
}

.error-container .bg-circle {
    position: absolute;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: #ffb347;
    top: 60%;
    left: 70%;
    transform: translate(-50%, -50%);
    z-index: 0;
    opacity: 0.3;
    animation: pulse 6s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }
}

/* Mobil Uyumluluk */
@media (max-width: 480px) {
    .error-container {
        padding: 20px;
    }

        .error-container h1 {
            font-size: 36px;
        }

        .error-container p {
            font-size: 16px;
            margin-bottom: 20px;
        }

        .error-container img {
            max-width: 60px;
        }

    .btn-home {
        padding: 10px 20px;
        font-size: 14px;
    }

    .error-container::before {
        font-size: 150px;
        top: -40px;
        left: -40px;
    }

    .error-container .bg-circle {
        width: 100px;
        height: 100px;
        top: 70%;
        left: 60%;
    }
}