*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
	margin: 0;
	background: var(--color-bg);
	color: var(--color-text);
	font-family: var(--font-base);
	font-size: 16px;
	line-height: 1.8;
	-webkit-font-smoothing: antialiased;
	overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }

a { color: inherit; text-decoration: none; }

button { font-family: inherit; }

h1, h2, h3, h4, p, ul, ol { margin: 0; padding: 0; }
ul, ol { list-style: none; }

::selection { background: var(--color-accent); color: #fff; }

/* アクセシビリティ：キーボードフォーカスを可視化 */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
	outline: 2px solid var(--color-accent);
	outline-offset: 2px;
}

.container {
	width: 100%;
	padding-inline: var(--container-pad);
}

.eyebrow {
	display: inline-block;
	font-size: 12px;
	font-weight: 700;
	letter-spacing: var(--label-tracking);
	text-transform: uppercase;
	color: var(--color-accent);
}

.section-heading {
	font-size: clamp(28px, 4vw, 44px);
	font-weight: 900;
	line-height: 1.4;
	margin-top: 12px;
}

.section-lead {
	margin-top: 20px;
	color: var(--color-text-muted);
	font-size: 16px;
	line-height: 1.9;
	max-width: 640px;
}

.btn {
	display: inline-flex;
	align-items: center;
	gap: 12px;
	padding: 16px 18px;
	border-radius: 10px;
	font-weight: 700;
	font-size: 15px;
	border: 1px solid transparent;
	cursor: pointer;
	transition: transform var(--duration-fast) var(--ease-standard), opacity var(--duration-fast) var(--ease-standard);
}
.btn:hover { transform: translateY(-2px); }

.btn__arrow { font-weight: 400; }
.btn__line-badge {
	font-size: 9px;
	font-weight: 800;
	letter-spacing: 0.04em;
}

.btn--line {
	background: var(--color-line-green);
	color: #fff;
}
.btn--primary {
	background: var(--color-accent);
	color: #fff;
}
.btn--ghost {
	background: transparent;
	border-color: var(--color-hairline);
	color: var(--color-text);
}

.panel {
	background: var(--color-panel);
	border: 1px solid var(--color-hairline);
	border-radius: var(--radius-lg);
	backdrop-filter: blur(6px);
}

/* スクロールフェードイン：JSがdata-animate要素にis-visibleを付与 */
[data-animate] {
	opacity: 0;
	transform: translateY(24px);
	transition: opacity var(--duration-base) var(--ease-standard), transform var(--duration-base) var(--ease-standard);
}
[data-animate].is-visible {
	opacity: 1;
	transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
	[data-animate] { opacity: 1; transform: none; transition: none; }
	html { scroll-behavior: auto; }
}

.visually-hidden {
	position: absolute;
	width: 1px; height: 1px;
	padding: 0; margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

.skip-link {
	position: absolute;
	left: -9999px;
	top: 0;
	background: var(--color-accent);
	color: #fff;
	padding: 12px 20px;
	z-index: 1000;
}
.skip-link:focus {
	left: 12px;
	top: 12px;
}