/* Reset default margins and set full height */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    font-family: Arial, Helvetica, sans-serif;
}

/* Center the box in the middle of the screen */
body {
    display: flex;
    justify-content: center;
    align-items: center;
    /* background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); */
    min-height: 100vh;
}

/* Rounded box styling */
.rounded-box {
    background: white;
    padding: 20px 40px;
    border-radius: 20px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* Hover effect for a nicer feel */
.rounded-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

/* Heading styling */
.rounded-box h1 {
    color: #333;
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: 1px;
    margin: 0;
}

/* Optional: Add a subtle underline accent */
.rounded-box h1::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    margin: 15px auto 0;
    border-radius: 2px;
}

/* Back button styling */
.back-button {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    margin-top: 10px;
}

/* Back button hover effect */
.back-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.6);
    background: linear-gradient(135deg, #5a6fd6, #6a3f8f);
}

/* Back button active effect */
.back-button:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.3);
}