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

:root {
	--bg: #fafafa;
	--surface: #ffffff;
	--fg: #111111;
	--muted: #555555;
	--border: #e5e5e5;
	--accent: #4b6aff;
	--accent-hover: #3a55d6;
	--accent-focus-ring: rgba(75, 106, 255, 0.25);
	--nsfw: #ff4b4b;
	--nsfw-hover: #ff1f1f;
	--radius: 10px;
	--transition: background-color 0.25s ease, border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease, opacity 0.25s ease;
	--font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

body {
	margin: 0;
	background-color: var(--bg);
	color: var(--fg);
	font-family: var(--font-sans);
	line-height: 1.5;
}

.site-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 1.5rem 2rem;
	border-bottom: 1px solid var(--border);
	background: var(--surface);
	position: sticky;
	top: 0;
	z-index: 10;
}

.site-title {
	font-size: 1.4rem;
	font-weight: 600;
}

.site-title em {
	color: var(--accent);
	font-style: normal;
}

.site-nav {
	color: var(--muted);
	font-size: 0.95rem;
}

.hero {
	position: relative;
	padding: 5rem 2rem;
	text-align: center;
	color: #ffffff;
	border-bottom: 1px solid var(--border);
	background: #111111;
	overflow: hidden;
}

.hero::before {
	content: "";
	position: absolute;
	inset: 0;
	z-index: 0;
	background-image: url('https://upload.wikimedia.org/wikivoyage/en/thumb/8/8b/BlueMarble_main_page_banner.png/960px-BlueMarble_main_page_banner.png');
	background-position: center;
	background-size: cover;
	filter: brightness(0.45) blur(2px);
}

.hero-content {
	position: relative;
	z-index: 1;
	max-width: 700px;
	margin-inline: auto;
}

.hero-title {
	font-size: 2.4rem;
	margin-top: 0;
	margin-bottom: 0.5rem;
	font-weight: 700;
}

.hero-subtitle {
	font-size: 1.1rem;
	color: #dddddd;
	margin-bottom: 1.5rem;
}

.hero-button {
	display: inline-block;
	padding: 0.8rem 1.6rem;
	background-color: var(--accent);
	color: #ffffff;
	border-radius: var(--radius);
	font-weight: 600;
	text-decoration: none;
	transition: var(--transition);
}

.hero-button:hover {
	background-color: var(--accent-hover);
	transform: translateY(-3px);
}

.hero-button:focus-visible {
	outline: 2px solid var(--accent);
	outline-offset: 2px;
}

.section {
	padding: 3rem 2rem;
	max-width: 1100px;
	margin-inline: auto;
}

.section-header {
	display: flex;
	justify-content: space-between;
	align-items: baseline;
	margin-bottom: 1.5rem;
}

.section-label {
	font-size: 1.2rem;
	font-weight: 600;
}

.section-count {
	color: var(--muted);
}

.projects-grid,
.tools-grid {
	display: grid;
	gap: 1.5rem;
	grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr));
}

.project-card,
.tool-card {
	background-color: var(--surface);
	border-radius: var(--radius);
	border: 1px solid var(--border);
	color: inherit;
	display: block;
	padding: 1.5rem;
	position: relative;
	text-decoration: none;
	transition: var(--transition);
	will-change: transform;
}

.project-card:hover,
.tool-card:hover,
.project-card:focus-visible,
.tool-card:focus-visible {
	border-color: var(--accent);
	box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
	transform: translateY(-4px);
}

.project-card:focus-visible,
.tool-card:focus-visible {
	outline: 2px solid var(--accent);
	outline-offset: 2px;
}

.card-num {
	font-size: 0.9rem;
	color: var(--muted);
}

.card-arrow {
	position: absolute;
	top: 1rem;
	right: 1rem;
	font-size: 1.2rem;
	color: var(--accent);
	opacity: 0;
	transition: var(--transition);
}

.project-card:hover .card-arrow,
.project-card:focus-visible .card-arrow {
	opacity: 1;
}

.card-title {
	margin: 0.5rem 0;
	font-size: 1.3rem;
}

.card-desc {
	color: var(--muted);
	font-size: 0.95rem;
	margin-bottom: 1rem;
}

.card-link-hint {
	font-size: 0.9rem;
	color: var(--accent);
}

/* Tool card content */
.tool-icon {
	font-size: 1.8rem;
	display: block;
	margin-bottom: 0.5rem;
}

.tool-name {
	font-weight: 600;
	font-size: 1.1rem;
}

.tool-desc {
	color: var(--muted);
	font-size: 0.9rem;
}

.nsfw-badge {
	position: absolute;
	top: 0.8rem;
	right: 0.8rem;
	background-color: var(--nsfw);
	color: #ffffff;
	font-size: 0.7rem;
	font-weight: 700;
	padding: 0.2rem 0.45rem;
	border-radius: 4px;
	letter-spacing: 0.5px;
}

.tool-card.nsfw {
	border-color: var(--nsfw);
}

.tool-card.nsfw:hover,
.tool-card.nsfw:focus-visible {
	border-color: var(--nsfw-hover);
}

.tools-search {
	max-width: 400px;
	margin-inline: auto;
	margin-block-end: 2rem;
}

.tools-search input {
	width: 100%;
	padding: 0.8rem 1rem;
	border: 1px solid var(--border);
	border-radius: var(--radius);
	font-size: 1rem;
	background-color: var(--surface);
	color: var(--fg);
	font-family: inherit;
	transition: var(--transition);
}

.tools-search input:focus-visible {
	border-color: var(--accent);
	outline: none;
	box-shadow: 0 0 0 3px var(--accent-focus-ring);
}

footer {
	padding: 2rem;
	text-align: center;
	color: var(--muted);
	font-size: 0.9rem;
	border-top: 1px solid var(--border);
}