@charset "UTF-8";
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
:root {
	color-scheme: light;
	--bg: #eef2f7;
	--panel: rgba(255, 255, 255, 0.88);
	--panel-border: rgba(18, 28, 45, 0.08);
	--text: #1f2937;
	--muted: #5b6472;
	--accent: #0f766e;
	--accent-hover: #115e59;
	--shadow: 0 18px 45px rgba(15, 23, 42, 0.12);
}

html {
	min-height: 100%;
	font-size: 62.5%;
}

body {
	min-height: 100vh;
	margin: 0;
	padding: 48px 20px;
	font-family: "Yu Gothic", "Hiragino Sans", "Meiryo", sans-serif;
	color: var(--text);
	background:
		radial-gradient(circle at top left, rgba(15, 118, 110, 0.12), transparent 35%),
		radial-gradient(circle at bottom right, rgba(59, 130, 246, 0.10), transparent 32%),
		var(--bg);
}

main {
	width: min(920px, 100%);
	margin: 0 auto;
	padding: 32px;
	border: 1px solid var(--panel-border);
	border-radius: 24px;
	background: var(--panel);
	box-shadow: var(--shadow);
	backdrop-filter: blur(8px);
}

h1 {
	margin: 0 0 12px;
	font-size: clamp(3.2rem, 5vw, 4.8rem);
	line-height: 1.1;
	letter-spacing: 0.04em;
    text-align: center;
}

p {
	margin: 0 0 28px;
	font-size: 1.8rem;
	line-height: 1.8;
	color: var(--muted);
    text-align: center;
}

section {
	margin-top: 28px;
	border-top: 1px solid rgba(31, 41, 55, 0.10);
}

h2 {
	margin: 14px 0;
	font-size: 2.2rem;
	line-height: 1.4;
	color: var(--text);
}

ul {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
	gap: 12px;
	padding: 0;
	margin: 0;
	list-style: none;
}

li {
	margin: 0;
}

a {
	display: block;
	padding: 14px 16px;
	border: 1px solid rgba(15, 118, 110, 0.16);
	border-radius: 14px;
	background: #fff;
	color: var(--accent);
	font-size: 1.6rem;
	font-weight: 700;
	line-height: 1.5;
	transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

a:hover,
a:focus-visible {
	border-color: rgba(15, 118, 110, 0.34);
	background: #f5fffd;
	color: var(--accent-hover);
	transform: translateY(-2px);
	box-shadow: 0 10px 24px rgba(15, 118, 110, 0.12);
	outline: none;
}

section > p {
	margin-bottom: 0;
}

@media screen and (max-width: 770px) {
	html {
		font-size: 56.25%;
	}

	body {
		padding: 18px;
	}

	main {
		padding: 22px 18px;
		border-radius: 18px;
	}

	ul {
		grid-template-columns: 1fr;
	}
}