body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: green;
}

#chessboard{
    display: grid;
    grid-template-columns: repeat(8, 100px);
    grid-template-rows: repeat(8, 100px);
    position:relative;
}

#warning{
    display:block;

}
.warning{
    background-color: white;
    padding: 20px;
    font-weight: bold;
}
#buttons{
    display:flex;
    flex-direction:column;
}

#screen{
    position:absolute;
    width: 800px;
    height: 200px;
    top: 300px;
    left: 0px;
    z-index: 99;
    background-color:aquamarine;
    visibility:hidden;
    font-size: 50px;
    text-align:center;
    align-content:center;
}

#selection{
    display:flex;
    gap: 90px;
    justify-content: center;
    align-items: center;
}

#question{
    margin-top: 10px;
    margin-bottom: 10px;
}

#yes{
    border: 10px solid green;
    background-color: green;
}

#no{
    border: 10px solid red;
    background-color: red;
}
.square{
    width: 100px;
    height: 100px;
}

.white {
    background-color: white;
}

.black {
    background-color: blue;
}
.square-hover {
    border: solid;
    border-color: chartreuse;
    border-width: thick;
}

.rotate {
    transform: rotate(180deg);
}

.corner-image {
  position: absolute;
  top: 10px;
  left: 10px;
  height: auto;
  border-radius: 8px;
}

.logo {
    position: absolute;
    top: 12px;
    left: 1px;
    height: auto;
    border-radius: 8px;
}

/* Top-right Sign Up Button */
#signup-button {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 10px 20px;
    font-size: 16px;
    background-color: gold;
    border: 2px solid darkgreen;
    border-radius: 8px;
    cursor: pointer;
    z-index: 1000;
    transition: background-color 0.3s ease;
}

#signup-button:hover {
    background-color: orange;
}

/* Top-right Sign Up Form */
#signup-form {
    position: fixed;
    top: 70px;
    right: 20px;
    padding: 20px;
    background-color: white;
    border: 3px solid darkblue;
    border-radius: 12px;
    width: 300px;
    box-shadow: 0 0 10px rgba(0,0,0,0.3);
    font-family: Arial, sans-serif;
    z-index: 1000;
    display: none; /* Hidden by default */
}

/* Form Heading */
#signup-form h2 {
    margin-bottom: 15px;
    text-align: center;
    color: darkblue;
}

/* Form Labels and Inputs */
#signup-form label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #333;
}

#signup-form input {
    width: 100%;
    padding: 8px;
    margin-bottom: 15px;
    border: 2px solid #ccc;
    border-radius: 6px;
    font-size: 16px;
}

/* Submit Button */
#signup-form button[type="submit"] {
    width: 100%;
    padding: 10px;
    background-color: darkblue;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

#signup-form button[type="submit"]:hover {
    background-color: skyblue;
}

/* Homepage Section */
#homepage {
    background-color: #f0f8ff;
    border: 2px solid #4682b4;
    border-radius: 12px;
    margin: 40px auto;
    padding: 30px;
    width: 80%;
    max-width: 600px;
    box-shadow: 0 0 15px rgba(0,0,0,0.2);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    text-align: center;
}

/* Welcome Message */
#homepage h1 {
    color: #2e8b57;
    font-size: 32px;
    margin-bottom: 20px;
}

/* Paragraph Text */
#homepage p {
    font-size: 18px;
    color: #333;
    margin-bottom: 30px;
}