* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #1a1a2e;
    color: #ffffff;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
}

.container {
    text-align: center;
    background: #16213e;
    padding: 50px 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    max-width: 500px;
    width: 90%;
}

.error-code {
    font-size: 100px;
    font-weight: bold;
    color: #e94560;
    text-shadow: 2px 2px 10px rgba(233, 69, 96, 0.5);
}

h1 {
    font-size: 28px;
    margin-bottom: 15px;
}

p {
    font-size: 16px;
    color: #b0b0b0;
    margin-bottom: 30px;
    line-height: 1.5;
}

button {
    background-color: #e94560;
    color: #ffffff;
    border: none;
    padding: 12px 30px;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

button:hover {
    background-color: #ff6b8b;
    transform: translateY(-2px);
}

.countdown {
    margin-top: 20px;
    font-size: 14px;
    color: #4a90e2;
}