* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: cursive;
    background-color: black; /* Black background for body */
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh; /* Full viewport height */
}
main {
    width: 500px; /* Fixed width for square shape */
    height: 500px; /* Fixed height for square shape */
    background-color: yellow; /* Yellow background inside container */
    box-shadow: 0px 0px 15px rgba(0, 0, 0, 0.5); /* Shadow effect */
    border: 1px solid black; /* Black border around container */
    border-radius: 20px; /* Smooth corners */
    display: flex;
    flex-direction: column;
    justify-content: space-between; /* Space between header, form, and footer */
    align-items: center; /* Centers content horizontally */
    padding: 20px;
}
header {
    width: 100%;
    background-color: black; /* Black background for header */
    color: yellow; /* Yellow text for contrast */
    padding: 15px;
    text-align: center; /* Centers header text */
    border-radius: 10px; /* Smooth corners for header */
    border: 1px solid black; /* Black border around header */
}
header h1 {
    font-size: 25px; /* Bigger font size for visibility */
}
form {
    width: 100%;
    display: flex;
    justify-content: space-between;
}
form input[type="text"] {
    padding: 12px; /* Adds spacing inside the input */
    font-size: 16px; /* Improves readability */
    border: 1px solid black; /* Ensures black border */
    border-radius: 8px; /* Smooth corners */
    background-color: white; /* White background for contrast */
    margin-right: 5px; /* Adds spacing between input and button */
    flex-grow: 1; /* Ensures input fills available space */
}
form button[type="submit"] {
    padding: 12px; /* Adds padding */
    font-size: 16px; /* Improves readability */
    border: 1px solid black; /* Ensures black border */
    border-radius: 8px; /* Smooth corners */
    background-color: black; /* Black background for button */
    color: white; /* White text on button */
    cursor: pointer; /* Pointer cursor on hover */
    transition: background-color 0.3s ease; /* Smooth hover transition */
}
form button[type="submit"]:hover {
    background-color: black; /* Keeps background black */
    color: white; /* Ensures text stays white */
}
.result {
    width: 100%;
    padding: 15px;
    margin-top: 20px;
    background-color: white; /* White background for result */
    box-shadow: 0px 0px 5px black; /* Slight shadow for result */
    border: 1px solid black; /* Black border around result */
    border-radius: 10px; /* Smooth corners for result */
    color: black; /* Black text for readability */
}
footer {
    width: 100%;
    background-color: black; /* Black background for footer */
    color: yellow; /* Yellow text for contrast */
    padding: 10px; /* Adds spacing */
    font-size: 15px; /* Improves readability */
    text-align: center; /* Centers footer text */
    border-radius: 10px; /* Smooth corners for footer */
    border: 1px solid black; /* Black border around footer */
}