* {
    padding: 2px;
    margin: 5px;
    box-sizing: border-box;
    background-color: var(--dark-background-color);
    color: var(--dark-text-color);
}

:root {
    --primary-color: hsl(204, 86%, 53%);
    --secondary-color: hsl(204, 70%, 53%);
    --dark-background-color: hsl(210, 36%, 12%);
    --dark-text-color: hsl(210, 22%, 89%);
    --dark-border-color: hsl(204, 70%, 30%);
    --dark-highlight-color: hsl(204, 86%, 43%);
    --highlight-color: hsl(208, 33%, 20%);
    --background-color: hsl(210, 36%, 96%);
    --text-color: hsl(210, 22%, 49%);
    --border-color: hsl(204, 70%, 53%);
}

body {
    color: var(--dark-text-color);
    font-family: 'Courier New', cursive;
    zoom: 68%;
}

h1 {
    font-size: 54px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.container {
    padding: 40px;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    background-color: var(--dark-background-color);
}

#biggameboard {
    width: 910px;
    display: flex;
    flex-wrap: wrap;
    margin-top: 40px;
    border: 5px solid var(--dark-border-color);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    border-radius: 10px;
}

.gameboard {
    width: 300px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    font-size: 360px;
}

.box {
    height: 100px;
    width: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 100px;
    border: 2px solid var(--dark-border-color);
    font-variant: small-caps;
    transition: background-color 0.3s, transform 0.3s;
}

.box:nth-child(3n) {
    border-right: 5px solid var(--dark-border-color);
}

.box:nth-child(6) ~ .box {
    border-bottom: 5px solid var(--dark-border-color);
}

.box:nth-child(3n-2) {
    border-left: 5px solid var(--dark-border-color);
}

.box:nth-child(-n+3) {
    border-top: 5px solid var(--dark-border-color);
}
.box.available {
    background-color: var(--highlight-color);
}
.box.available:hover {
    cursor: pointer;
    background-color: var(--dark-highlight-color);
    transform: scale(1.1);
}

button,input[type="submit"] {
    padding: 10px 20px;
    border-radius: 10px;
    background-color: var(--primary-color);
    color: hsl(0, 0%, 100%);
    border: none;
    font-size: 18px;
    transition: transform 0.2s, background-color 0.2s;
    font-weight: 600;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

input[type="text"] {
    padding: 10px 20px;
    border-radius: 10px;
    background-color: var(--dark-border-color);
    color: hsl(0, 0%, 100%);
    border: 2px;
    border-color: var(--dark-highlight-color);
    font-size: 18px;
    transition: transform 0.2s, background-color 0.2s;
    font-weight: 600;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    box-sizing: border-box;
}



button:hover,input[type="submit"]:hover {
    cursor: pointer;
    transform: translateY(-2px);
    background-color: var(--secondary-color);
}