:root {
	--bg: #14181c;
	--bg-elevated: #1c2126;
	--bg-card: #20262c;
	--border: #2c333a;

	--amber: #e0a64b;
	--steel: #6f93b3;
	--brick: #c25a3f;

	--text: #ece8e1;
	--text-dim: #9aa2ab;

	--font-heading: "Barlow Condensed", sans-serif;
	--font-mono: "IBM Plex Mono", monospace;
}

* {
	box-sizing: border-box;
}

body {
	margin: 0;
	background: var(--bg);
	color: var(--text);
	font-family: var(--font-mono);
	font-size: 15px;
	line-height: 1.5;
}

a {
	color: inherit;
}

/* ---- Header ---- */

.site-header {
	padding: 2.5rem 1.5rem 1.5rem;
	text-align: center;
	border-bottom: 1px solid var(--border);
}

.brand {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 0.6rem;
}

.brand-mark {
	border-radius: 6px;
	display: block;
}

.site-header h1 {
	font-family: var(--font-heading);
	font-weight: 700;
	font-size: 3rem;
	letter-spacing: 0.08em;
	margin: 0;
	color: var(--amber);
}

.tagline {
	margin: 0.4rem 0 0;
	color: var(--text-dim);
	font-size: 0.9rem;
}

/* ---- Nav ---- */

.category-nav {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	justify-content: center;
	padding: 1.25rem 1.5rem;
	border-bottom: 1px solid var(--border);
}

.nav-chip {
	font-family: var(--font-mono);
	font-size: 0.75rem;
	text-decoration: none;
	padding: 0.4rem 0.8rem;
	border-radius: 999px;
	border: 1px solid var(--border);
	color: var(--text-dim);
	background: var(--bg-elevated);
	transition: border-color 0.15s, color 0.15s;
}

.nav-chip:hover {
	color: var(--text);
}

.nav-chip[data-accent="amber"]:hover { border-color: var(--amber); }
.nav-chip[data-accent="steel"]:hover { border-color: var(--steel); }
.nav-chip[data-accent="brick"]:hover { border-color: var(--brick); }

/* ---- Categories ---- */

main {
	max-width: 1100px;
	margin: 0 auto;
	padding: 1rem 1.5rem 3rem;
}

.category {
	padding-top: 2.5rem;
	scroll-margin-top: 1rem;
}

.category-header {
	display: flex;
	align-items: baseline;
	gap: 0.75rem;
	flex-wrap: wrap;
	border-bottom: 2px solid var(--border);
	padding-bottom: 0.5rem;
	margin-bottom: 1.25rem;
}

.category[data-accent="amber"] .category-header { border-bottom-color: var(--amber); }
.category[data-accent="steel"] .category-header { border-bottom-color: var(--steel); }
.category[data-accent="brick"] .category-header { border-bottom-color: var(--brick); }

.category-label {
	font-family: var(--font-heading);
	font-weight: 600;
	font-size: 2rem;
	letter-spacing: 0.02em;
	margin: 0;
}

.category-code {
	font-family: var(--font-mono);
	font-size: 0.75rem;
	color: var(--text-dim);
	background: var(--bg-elevated);
	border: 1px solid var(--border);
	border-radius: 4px;
	padding: 0.15rem 0.5rem;
}

.category-status {
	margin-left: auto;
	display: flex;
	flex-direction: column;
	align-items: flex-end;
	gap: 0.15rem;
	font-size: 0.75rem;
	color: var(--text-dim);
}

.status-next {
	color: var(--text-dim);
	opacity: 0.75;
}

.category-status.status-error .status-updated {
	color: var(--brick);
}

/* ---- Category error banner ---- */

.category-error {
	background: rgba(194, 90, 63, 0.12);
	border: 1px solid var(--brick);
	border-radius: 8px;
	padding: 0.75rem 1rem;
	margin-bottom: 1rem;
}

.category-error strong {
	display: block;
	font-family: var(--font-heading);
	font-weight: 600;
	font-size: 1.1rem;
	letter-spacing: 0.02em;
	color: var(--brick);
	margin-bottom: 0.3rem;
}

.category-error p {
	margin: 0 0 0.3rem;
	font-size: 0.85rem;
	color: var(--text);
}

.category-error-time {
	font-size: 0.7rem;
	color: var(--text-dim);
}

/* ---- Cards ---- */

.card-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
	gap: 1rem;
}

.card {
	background: var(--bg-card);
	border: 1px solid var(--border);
	border-radius: 8px;
	padding: 1rem 1.1rem;
	display: flex;
	flex-direction: column;
	gap: 0.6rem;
}

.category[data-accent="amber"] .card { border-left: 3px solid var(--amber); }
.category[data-accent="steel"] .card { border-left: 3px solid var(--steel); }
.category[data-accent="brick"] .card { border-left: 3px solid var(--brick); }

.card-title {
	font-family: var(--font-heading);
	font-weight: 600;
	font-size: 1.25rem;
	line-height: 1.2;
	margin: 0;
}

.card-summary {
	margin: 0;
	color: var(--text-dim);
	font-size: 0.85rem;
	flex-grow: 1;
}

.card-meta {
	display: flex;
	align-items: center;
	justify-content: space-between;
	font-size: 0.7rem;
	padding-top: 0.4rem;
	border-top: 1px solid var(--border);
}

.card-source-group {
	display: flex;
	align-items: center;
	gap: 0.5rem;
}

.card-source {
	color: var(--text-dim);
	text-transform: uppercase;
	letter-spacing: 0.05em;
}

.card-trending {
	color: var(--amber);
	font-size: 0.7rem;
	white-space: nowrap;
}

.card-link {
	text-decoration: none;
	color: var(--amber);
	font-weight: 500;
	white-space: nowrap;
}

.card-link:hover {
	text-decoration: underline;
}

.card-empty {
	color: var(--text-dim);
	font-size: 0.85rem;
	grid-column: 1 / -1;
}

/* ---- Footer ---- */

.site-footer {
	text-align: center;
	padding: 1.5rem;
	color: var(--text-dim);
	font-size: 0.75rem;
	border-top: 1px solid var(--border);
}

.site-footer code {
	font-family: var(--font-mono);
	color: var(--text);
}

.status-panel {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 0.5rem 1rem;
	margin-bottom: 0.75rem;
	font-size: 0.7rem;
	color: var(--text-dim);
}

.status-alert {
	color: var(--brick);
}

/* ---- Back to top ---- */

.back-to-top {
	position: fixed;
	right: 1.25rem;
	bottom: 1.25rem;
	width: 48px;
	height: 48px;
	border: none;
	border-radius: 50%;
	background: var(--amber);
	color: var(--bg);
	font-family: var(--font-heading);
	font-size: 1.4rem;
	font-weight: 700;
	line-height: 1;
	display: flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	box-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
	opacity: 0;
	visibility: hidden;
	transform: translateY(8px);
	transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
	z-index: 100;
}

.back-to-top.is-visible {
	opacity: 0.9;
	visibility: visible;
	transform: translateY(0);
}

.back-to-top:hover {
	opacity: 1;
}

/* ---- Responsive ---- */

@media (max-width: 480px) {
	.site-header h1 {
		font-size: 2.25rem;
	}
	.category-label {
		font-size: 1.6rem;
	}
	.card-grid {
		grid-template-columns: 1fr;
	}
}