body {
    margin: 0;
    padding: 0;
    background-color: white;
    font-family: Times, 'Times New Roman', Georgia, serif;
}

form {
    padding: 1rem;
    height: calc(100vh - 2rem);
    display: flex;
    flex-flow: column;
    justify-content: space-evenly;
}

h1 {
    margin: 0;
}

h1 table {
    margin: auto;
    line-height: 0.8;
}

h1 td {
    width: 0.7em;
    text-align: center;
}

h1,
h2 {
    font-variant-caps: petite-caps;
    text-align: center;
}

table.grille {
    border-collapse: collapse;
    margin: 0 auto;
}

.grille th {
    width: 25px;
    height: 30px;
    text-align: center;
}

.grille td {
    width: 2rem;
    height: 2rem;
    border: 1px solid black;
    padding: 2px;
    background-color: white;
}

.grille tr:nth-of-type(2) td {
    border-top-width: 3px;
}
.grille tr:last-of-type td {
    border-bottom-width: 3px;
}
.grille td:first-of-type {
    border-left-width: 3px;
}
.grille td:last-child {
    border-right-width: 3px;
}

.grille .case.noire {
    background-color: black;
}

.grille .case.noire {
    background-color: black;
}

.grille input {
    width: 100%;
    height: 100%;
    border: none;
    padding: 0;
    text-align: center;
    font-size: 1.2em;
    font-family: 'Comic Sans MS', 'Comic Sans', sans;
    color: darkblue;
    background-color: white;
}

.grille input[disabled] {
    background-color: black;
}

.definitions {
    display: flex;
    justify-content: space-evenly;
}

.definitions .horizontales,
.definitions .verticales {
    width: 45%;
}

.definitions ol {
    padding-left: 2em;
}

.definitions > div > ol > li::marker {
    font-weight: bold;
}

.definitions li ol {
    padding-left: 0em;
}

.definitions li li {
    margin-left: 0.8em;
}

.definitions li li::marker {
    font-size: small;
}

button[type='submit'] {
    width: fit-content;
    margin: 0 auto;
}

button[type='submit'] {
    width: fit-content;
    margin: 0 auto;
    border: none;
    background: none;
    font-family: inherit;
    font-size: 1em;
}

button[type="submit"]:hover {
    cursor: pointer;
    color: #2a6496;
    text-decoration: underline;
}

button[type="submit"]:active {
    color: darkorchid;
}


@media (max-width: 640px) {
	* {
		box-sizing: border-box;
	}
    
	body {
		width: auto;
		margin: 0;
		padding: 0;
	}
    

    h1 table {
        line-height: 0.7;
    }

	.grille td {
		width: 2.5rem;
        height: 2.5rem;
	}
    
    .definitions {
        display: flex;
        flex-flow: column;
    }

    .definitions .horizontales,
    .definitions .verticales {
        width: 100%;
    }
}

@media (max-device-width:768px) and (orientation: landscape) {
  html {
   -webkit-text-size-adjust: 100%;
   -ms-text-size-adjust: 100%;
  }
}

@media (prefers-color-scheme: dark) {
    body,
    button {
        background-color: #02081a;
        color: #c6c6c6;
    }
    
    .grille td,
    .grille input {
        background-color: #edeeee;
    }
    
    button[type="submit"]:hover {
        color: #479fec;
    }
    
    button[type="submit"]:active {
        color: orchid;
    }
}