:root {
	font-family: Georgia, "Times New Roman", serif;
	color: #202020;
	background: #F4F0E7;
	line-height: 1.45;
}

* {
	box-sizing: border-box;
}

body {
	margin: 0;
	background: #F4F0E7;
}

a {
	color: #174F8A;
}

a:hover {
	text-decoration-thickness: 2px;
}

.page-shell {
	width: min(72rem, calc(100% - 2rem));
	margin: 0 auto;
	padding: 2rem 0 3rem;
}

.site-header {
	text-align: center;
	margin-bottom: 2rem;
}

.site-header h1 {
	margin: 0;
	font-size: clamp(2.3rem, 6vw, 4.6rem);
	line-height: 1;
	letter-spacing: 0.015em;
}

.site-header .subtitle {
	margin: 0.45rem 0 0;
	font-size: clamp(1.05rem, 2.5vw, 1.45rem);
	font-style: italic;
}

.intro,
.design-intro {
	font-size: 1.08rem;
	max-width: 58rem;
	margin: 0 auto 2rem;
}

.feature-grid {
	display: grid;
	grid-template-columns: repeat(2,minmax(0,1fr));
	gap: 1.1rem;
	margin: 2rem 0;
}

.game-card,
.design-panel {
	background: #FFFDF8;
	border: 1px solid #B9B19F;
	border-radius: 0.8rem;
	box-shadow: 0 2px 5px rgb(0 0 0 / 0.08);
}

.game-card {
	display: grid;
	grid-template-columns: 12rem minmax(0,1fr);
	gap: 1rem;
	align-items: center;
	padding: 1rem;
}

.game-card h2 {
	margin: 0 0 0.35rem;
	font-size: 1.35rem;
}

.game-card p {
	margin: 0 0 0.75rem;
}

.pattern-stack {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 0.5rem;
	width: 12rem;
	height: 7rem;
	overflow: hidden;
}

.pattern-stack img {
	display: block;
	flex: 0 0 auto;
	max-width: none;
	height: auto;
}

/*
 * Keep every front-page scoring pattern at the same geometric scale.
 * These widths are proportional to the SVG viewBox widths, using
 * 0.45 CSS pixel per SVG unit.
 */
.pattern-o-tetromino {
	width: 58.5px;
}

.pattern-i-tetromino {
	width: 112.5px;
}

.pattern-f-pentomino {
	width: 85.5px;
}

.pattern-mickey,
.pattern-minnie {
	width: 72px;
}

.play-link,
.primary-button {
	display: inline-block;
	padding: 0.5rem 0.8rem;
	border: 1px solid #555;
	border-radius: 0.4rem;
	background: #EFE9DC;
	color: #111;
	font: inherit;
	font-weight: 700;
	text-decoration: none;
	cursor: pointer;
}

.play-link:hover,
.primary-button:hover {
	background: #E5DDCD;
}

.secondary-links {
	display: grid;
	grid-template-columns: repeat(2,minmax(0,1fr));
	gap: 1rem;
	margin: 2.2rem 0;
}

.secondary-links section {
	padding: 1rem 1.2rem;
	border-top: 1px solid #AAA18E;
	border-bottom: 1px solid #AAA18E;
}

.secondary-links h2 {
	margin: 0 0 0.35rem;
	font-size: 1.25rem;
}

.secondary-links p {
	margin: 0;
}

.site-footer {
	margin-top: 2.5rem;
	padding-top: 1rem;
	border-top: 1px solid #AAA18E;
	text-align: center;
	font-size: 0.95rem;
}

.design-panel {
	padding: 1.2rem;
}

.pattern-gallery {
	display: grid;
	grid-template-columns: repeat(auto-fit,minmax(10rem,1fr));
	gap: 0.8rem;
	margin: 1.2rem 0 2rem;
}

.pattern-sample {
	display: grid;
	grid-template-rows: 7rem auto;
	align-items: center;
	justify-items: center;
	margin: 0;
	padding: 0.55rem;
	text-align: center;
	background: #FFFDF8;
	border: 1px solid #CDC5B5;
	border-radius: 0.55rem;
}

.pattern-sample img {
	display: block;
	max-width: none;
	height: auto;
	margin: 0;
}

.pattern-sample[data-pattern] {
	cursor: pointer;
}

.pattern-sample[data-pattern]:hover {
	border-color: #8E866F;
}

.pattern-sample[data-pattern]:focus-visible {
	outline: 2px solid #2E5F89;
	outline-offset: 2px;
}

.pattern-sample.selected {
	border-color: #5E5747;
	box-shadow: 0 0 0 2px #5E5747;
}


/*
 * Use the same geometric scale for every scoring pattern on both
 * design pages.  As on the front page, 0.45 CSS pixel corresponds
 * to one SVG viewBox unit.
 */
.pattern-gallery img[src$="i_tetromino.svg"],
.pattern-gallery img[src$="straight4.svg"] { width: 112.5px; }
.pattern-gallery img[src$="l_tetromino.svg"],
.pattern-gallery img[src$="s_tetromino.svg"],
.pattern-gallery img[src$="t_tetromino.svg"] { width: 85.5px; }
.pattern-gallery img[src$="o_tetromino.svg"] { width: 58.5px; }
.pattern-gallery img[src$="f_pentomino.svg"],
.pattern-gallery img[src$="l_pentomino.svg"],
.pattern-gallery img[src$="p_pentomino.svg"],
.pattern-gallery img[src$="t_pentomino.svg"],
.pattern-gallery img[src$="u_pentomino.svg"],
.pattern-gallery img[src$="v_pentomino.svg"],
.pattern-gallery img[src$="w_pentomino.svg"],
.pattern-gallery img[src$="x_pentomino.svg"],
.pattern-gallery img[src$="z_pentomino.svg"] { width: 85.5px; }
.pattern-gallery img[src$="i_pentomino.svg"] { width: 139.5px; }
.pattern-gallery img[src$="s_pentomino.svg"],
.pattern-gallery img[src$="y_pentomino.svg"] { width: 112.5px; }
.pattern-gallery img[src$="mickey.svg"],
.pattern-gallery img[src$="minnie.svg"] { width: 72px; }
.pattern-gallery img[src$="donald.svg"],
.pattern-gallery img[src$="chipndale.svg"] { width: 85.5px; }
.pattern-gallery img[src$="goofy.svg"],
.pattern-gallery img[src$="pluto.svg"] { width: 99px; }

.pattern-sample figcaption {
	font-size: 0.95rem;
}

.variant-form {
	display: grid;
	gap: 0.9rem;
	max-width: 42rem;
}

.form-row {
	display: grid;
	grid-template-columns: 8rem minmax(5.7rem,8rem) minmax(12rem,1fr);
	gap: 0.6rem;
	align-items: center;
}

.form-row.single-control {
	grid-template-columns: 8rem minmax(12rem,18rem);
}

.form-row label,
.form-label {
	font-weight: 700;
}

select,
button {
	font: inherit;
}

select {
	width: 100%;
	padding: 0.35rem;
}

.form-actions {
	margin-top: 0.4rem;
}

.design-nav {
	margin-top: 1.7rem;
	padding-top: 1rem;
	border-top: 1px solid #AAA18E;
}

.design-nav p {
	margin: 0.25rem 0;
}

@media (max-width: 700px) {
	.feature-grid,
	.secondary-links {
		grid-template-columns: 1fr;
	}

	.game-card {
		grid-template-columns: 1fr;
	}

	.pattern-stack {
		justify-self: center;
	}

	.form-row,
	.form-row.single-control {
		grid-template-columns: 1fr;
		gap: 0.3rem;
	}
}