:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f4f7fa;
  --color-text: #1c2530;
  --color-text-muted: #5b6b7c;
  --color-accent: #1c6fd6;
  --color-accent-dark: #0d3b66;
  --color-border: #e1e7ee;
  --color-tx: #e2711d;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --container-width: 860px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.site-header {
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  max-width: var(--container-width);
  margin: 0 auto;
}

.site-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-accent-dark);
}

.tx-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-tx);
  animation: tx-pulse 2.4s ease-in-out infinite;
}

@keyframes tx-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(226, 113, 29, 0.45); }
  50% { box-shadow: 0 0 0 5px rgba(226, 113, 29, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .tx-dot { animation: none; }
}

.site-nav a {
  margin-left: 1.5rem;
  color: var(--color-text);
  font-size: 0.92rem;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-accent);
}

main {
  padding: 0 0 3rem;
}

.hero {
  padding: 3rem 0 2.5rem;
  border-bottom: 1px solid var(--color-border);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-accent);
  margin: 0 0 0.75rem;
}

.hero h1 {
  font-family: var(--font-mono);
  font-size: 2rem;
  margin: 0 0 1rem;
  color: var(--color-accent-dark);
}

.hero p.intro {
  color: var(--color-text-muted);
  max-width: 56ch;
  margin: 0 0 2rem;
}

.station-data {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 1.25rem 1.5rem;
  margin: 0;
}

.station-data dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-text-muted);
  margin: 0 0 0.25rem;
}

.station-data dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.95rem;
}

.section {
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--color-border);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin: 0 0 1rem;
}

.category-teasers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.teaser {
  display: block;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-bg-alt);
  color: var(--color-text);
}

.teaser:hover {
  border-color: var(--color-accent);
  text-decoration: none;
}

.teaser h2 {
  margin: 0 0 0.5rem;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 1.05rem;
}

.teaser p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

.posts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.post-card {
  border: 1px solid var(--color-border);
  border-radius: 6px;
  overflow: hidden;
}

.post-card .post-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-accent);
  padding: 0.9rem 1.1rem 0;
  margin: 0;
}

.post-card h3 {
  margin: 0.4rem 0 0.5rem;
  padding: 0 1.1rem;
  font-size: 1rem;
}

.post-card p {
  margin: 0;
  padding: 0 1.1rem 1.1rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.placeholder-flag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--color-text-muted);
  border: 1px dashed var(--color-border);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  margin: 0 1.1rem 0.9rem;
}

.post-list {
  list-style: none;
  padding: 0;
}

.post-list-empty {
  color: var(--color-text-muted);
  font-style: italic;
}

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 2.5rem 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-brand {
  font-family: var(--font-mono);
  color: var(--color-accent-dark);
  font-weight: 700;
}

.footer-links h4 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin: 0 0 0.5rem;
  font-weight: 400;
}

.footer-links ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li {
  margin-bottom: 0.35rem;
  font-size: 0.92rem;
}

.copyright {
  color: var(--color-text-muted);
  font-size: 0.82rem;
  margin-top: 1.5rem;
}

@media (max-width: 640px) {
  .station-data { grid-template-columns: 1fr; }
  .header-inner { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
  .site-nav a { margin-left: 0; margin-right: 1rem; }
}