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

body {
    font-family: 'Segoe UI', sans-serif;
    background: #e8ecf1;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    text-align: center;
    max-width: 500px;
}

h1 {
    color: #333;
    margin-bottom: 20px;
}

p {
    color: #666;
    margin-bottom: 30px;
    line-height: 1.6;
}

button {
    background-color: #3a6ea5;
    color: white;
    border: none;
    padding: 12px 30px;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
    margin: 8px;
}

button:hover {
    background-color: #2d5986;
}

button:active {
    transform: scale(0.98);
}

.hidden {
    display: none;
}