:root {
	--bg: #f5f6f8;
	--surface: #ffffff;
	--border: #e1e4ea;
	--text: #151a23;
	--muted: #5a6475;
	--accent: #2563eb;
	--accent-hover: #1d4ed8;
	--accent-text: #ffffff;
	--focus: #2563eb;
	--high-bg: #d9f3e3;
	--high-fg: #0b5a2b;
	--mid-bg: #fdecc4;
	--mid-fg: #7a4a00;
	--low-bg: #e8ebf0;
	--low-fg: #404a5b;
	--err-bg: #fde4e4;
	--err-fg: #8a1c1c;
	--ok-bg: #dcf3e5;
	--ok-fg: #0b5a2b;
	--info-bg: #e3edff;
	--info-fg: #17408f;
	--shadow: 0 1px 2px rgba(16, 24, 40, 0.06);
}

@media (prefers-color-scheme: dark) {
	:root {
		--bg: #0f131a;
		--surface: #181d27;
		--border: #2a3140;
		--text: #e8ebf2;
		--muted: #9aa5b8;
		--accent: #5b8def;
		--accent-hover: #7ba2f3;
		--accent-text: #0b1220;
		--focus: #7ba2f3;
		--high-bg: #14402a;
		--high-fg: #8fe0b0;
		--mid-bg: #4a3710;
		--mid-fg: #f6cf7a;
		--low-bg: #2a3140;
		--low-fg: #b8c1d1;
		--err-bg: #4a1d1d;
		--err-fg: #f4b0b0;
		--ok-bg: #14402a;
		--ok-fg: #8fe0b0;
		--info-bg: #1b2a4d;
		--info-fg: #a9c4fa;
		--shadow: none;
	}
}

* { box-sizing: border-box; }

body {
	margin: 0;
	background: var(--bg);
	color: var(--text);
	font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.wrap {
	max-width: 880px;
	margin: 0 auto;
	padding: 0 16px;
}

/* Header */
.topbar {
	background: var(--surface);
	border-bottom: 1px solid var(--border);
}
.topbar-inner {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 16px;
	padding-top: 20px;
	padding-bottom: 20px;
}
h1 {
	margin: 0;
	font-size: 1.5rem;
	letter-spacing: -0.01em;
}
.tagline {
	margin: 2px 0 0;
	color: var(--muted);
	font-size: 0.9rem;
}
.refresh-block {
	display: flex;
	flex-direction: column;
	align-items: flex-end;
	gap: 6px;
}
.meta {
	margin: 0;
	color: var(--muted);
	font-size: 0.82rem;
}

/* Buttons */
.btn-primary {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 9px 18px;
	border: 0;
	border-radius: 8px;
	background: var(--accent);
	color: var(--accent-text);
	font: inherit;
	font-weight: 600;
	cursor: pointer;
}
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); }
.btn-primary:disabled { opacity: 0.75; cursor: progress; }
.spinner {
	display: none;
	width: 14px;
	height: 14px;
	border: 2px solid currentColor;
	border-right-color: transparent;
	border-radius: 50%;
	animation: spin 0.8s linear infinite;
}
.is-loading .spinner { display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

:focus-visible {
	outline: 3px solid var(--focus);
	outline-offset: 2px;
}

/* Filters */
.filters {
	display: flex;
	flex-wrap: wrap;
	gap: 12px 20px;
	margin: 24px 0 8px;
}
.filters label {
	display: flex;
	flex-direction: column;
	gap: 4px;
	font-size: 0.8rem;
	font-weight: 600;
	color: var(--muted);
}
.filters select {
	min-width: 170px;
	padding: 8px 10px;
	border: 1px solid var(--border);
	border-radius: 8px;
	background: var(--surface);
	color: var(--text);
	font: inherit;
	font-weight: 400;
}

/* Banner */
.banner {
	margin: 16px 0 0;
	padding: 10px 14px;
	border-radius: 8px;
	font-size: 0.92rem;
}
.banner[data-kind="error"] { background: var(--err-bg); color: var(--err-fg); }
.banner[data-kind="ok"] { background: var(--ok-bg); color: var(--ok-fg); }
.banner[data-kind="info"] { background: var(--info-bg); color: var(--info-fg); }

/* Topic groups and cards */
.topic-group { margin-top: 32px; }
.topic-group h2 {
	display: flex;
	align-items: baseline;
	gap: 10px;
	margin: 0 0 12px;
	padding-bottom: 8px;
	border-bottom: 2px solid var(--border);
	font-size: 1.15rem;
}
.topic-count {
	color: var(--muted);
	font-size: 0.85rem;
	font-weight: 400;
}

.card {
	display: grid;
	grid-template-columns: 1fr auto;
	gap: 6px 16px;
	margin-bottom: 12px;
	padding: 16px 18px;
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: 10px;
	box-shadow: var(--shadow);
}
.card h3 {
	grid-column: 1;
	margin: 0;
	font-size: 1.05rem;
	line-height: 1.35;
}
.card h3 a {
	color: var(--text);
	text-decoration: none;
}
.card h3 a:hover { color: var(--accent); text-decoration: underline; }
.card .byline {
	grid-column: 1;
	margin: 0;
	color: var(--muted);
	font-size: 0.85rem;
}
.card .summary {
	grid-column: 1 / -1;
	margin: 4px 0 0;
}

.score {
	grid-column: 2;
	grid-row: 1 / span 2;
	align-self: start;
	min-width: 52px;
	padding: 4px 10px;
	border-radius: 999px;
	text-align: center;
	font-size: 0.85rem;
	font-weight: 700;
	white-space: nowrap;
}
.score small { font-weight: 500; opacity: 0.8; }
.score-high { background: var(--high-bg); color: var(--high-fg); }
.score-mid { background: var(--mid-bg); color: var(--mid-fg); }
.score-low { background: var(--low-bg); color: var(--low-fg); }

/* Empty / loading states */
.empty {
	margin-top: 40px;
	padding: 32px 20px;
	text-align: center;
	color: var(--muted);
	background: var(--surface);
	border: 1px dashed var(--border);
	border-radius: 10px;
}
.empty strong { display: block; color: var(--text); margin-bottom: 4px; }

.skeleton {
	height: 96px;
	margin-bottom: 12px;
	border-radius: 10px;
	background: linear-gradient(90deg, var(--border) 25%, var(--surface) 50%, var(--border) 75%);
	background-size: 200% 100%;
	animation: shimmer 1.4s infinite;
}
@keyframes shimmer { to { background-position: -200% 0; } }

.footer {
	padding-top: 40px;
	padding-bottom: 40px;
	color: var(--muted);
	font-size: 0.8rem;
}

@media (max-width: 560px) {
	.refresh-block { align-items: flex-start; width: 100%; }
	.filters select { min-width: 140px; }
}

@media (prefers-reduced-motion: reduce) {
	.spinner, .skeleton { animation-duration: 3s; }
}