:root {
  --paper: #f5f2e9;
  --panel: #fffdf8;
  --ink: #111827;
  --ink-muted: #475569;
  --rule: #d7d1c7;
  --accent: #0f4c5c;
  --accent-soft: #e2f0f3;
  --warning: #7c2d12;
  font-size: 16px;
  background: var(--paper);
  color: var(--ink);
}

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

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(15, 76, 92, 0.04), rgba(15, 76, 92, 0) 220px),
    var(--paper);
  color: var(--ink);
  font-family: "Source Serif Pro", "Georgia", serif;
  line-height: 1.6;
}

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

a:hover {
  text-decoration: underline;
}

.navtex-page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 3rem 1.25rem 4rem;
}

.navtex-hero {
  padding-bottom: 1.75rem;
  margin-bottom: 1.75rem;
  border-top: 4px solid var(--ink);
  border-bottom: 1px solid var(--rule);
}

.hero-eyebrow {
  margin: 0 0 1rem;
  color: var(--ink-muted);
  font-size: 0.76rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

.navtex-hero h1 {
  margin: 0 0 0.55rem;
  font-size: clamp(2.8rem, 4vw, 3.6rem);
  letter-spacing: 0.02em;
  font-weight: 600;
}

.hero-lede {
  max-width: 64ch;
  margin: 0 0 1rem;
  color: #1f2937;
  font-size: 1.1rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-meta span {
  display: inline-flex;
  gap: 0.35rem;
  align-items: center;
  padding: 0.15rem 0 0.2rem;
  border-bottom: 1px solid rgba(15, 23, 42, 0.12);
}

.navtex-layout {
  display: grid;
  gap: 1.25rem;
}

.navtex-panel {
  background: rgba(255, 253, 248, 0.94);
  border: 1px solid var(--rule);
  padding: 1.6rem 1.7rem;
}

.navtex-panel h2 {
  margin: 0 0 0.8rem;
  font-size: 1.35rem;
  letter-spacing: 0.01em;
}

.navtex-panel p {
  margin: 0 0 0.95rem;
  color: #1f2937;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem;
  margin: 1.25rem 0 1rem;
}

.stat-card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.95rem 1rem;
  border: 1px solid #c9d9dd;
  background: linear-gradient(180deg, rgba(15, 76, 92, 0.06), rgba(15, 76, 92, 0.01));
}

.stat-value {
  font-family: "Inter", "Helvetica Neue", sans-serif;
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-family: "Inter", "Helvetica Neue", sans-serif;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
}

.data-links {
  font-family: "Inter", "Helvetica Neue", sans-serif;
  font-size: 0.9rem;
}

.coverage-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.map-header {
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.map-meta,
.coverage-note {
  font-family: "Inter", "Helvetica Neue", sans-serif;
  font-size: 0.88rem;
  color: var(--ink-muted);
}

.map-meta {
  min-width: 210px;
  margin: 0;
  text-align: right;
}

.coverage-note {
  margin: 0 0 1rem;
}

.station-map {
  margin-bottom: 1rem;
  border: 1px solid #c9d9dd;
  background: linear-gradient(180deg, rgba(15, 76, 92, 0.03), rgba(15, 76, 92, 0.01));
}

.station-map svg {
  display: block;
  width: 100%;
  height: auto;
}

.station-map-empty {
  padding: 1rem;
  font-family: "Inter", "Helvetica Neue", sans-serif;
  color: var(--ink-muted);
}

.map-water {
  fill: #f1f8fa;
}

.map-frame {
  fill: rgba(255, 253, 248, 0.74);
  stroke: rgba(15, 23, 42, 0.08);
  stroke-width: 1;
}

.map-gridline {
  stroke: rgba(15, 76, 92, 0.12);
  stroke-width: 1;
}

.map-axis-label {
  font-family: "Inter", "Helvetica Neue", sans-serif;
  font-size: 12px;
  fill: #64748b;
  text-anchor: middle;
}

.map-axis-label--left {
  text-anchor: start;
}

.map-marker {
  fill: rgba(15, 76, 92, 0.88);
  stroke: #fffdf8;
  stroke-width: 2;
}

.map-code-label {
  font-family: "Inter", "Helvetica Neue", sans-serif;
  font-size: 12px;
  font-weight: 700;
  fill: #fffdf8;
  text-anchor: middle;
  dominant-baseline: middle;
}

.map-count-label {
  font-family: "Inter", "Helvetica Neue", sans-serif;
  font-size: 12px;
  font-weight: 700;
  fill: var(--accent);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-family: "Inter", "Helvetica Neue", sans-serif;
  font-size: 0.92rem;
}

th,
td {
  padding: 0.65rem 0.7rem;
  border-bottom: 1px solid #e7e1d7;
  text-align: left;
}

th {
  font-weight: 600;
  color: #334155;
}

.navtex-panel--report {
  display: grid;
  gap: 1.4rem;
}

.report-section {
  border-top: 1px solid rgba(15, 23, 42, 0.08);
  padding-top: 1.2rem;
}

.report-section:first-child {
  border-top: none;
  padding-top: 0;
}

.report-section ul {
  margin: 0;
  padding-left: 1.2rem;
}

.report-section li {
  margin-bottom: 0.7rem;
}

.navtex-panel--focus {
  border-left: 4px solid var(--accent);
  background: linear-gradient(180deg, rgba(15, 76, 92, 0.06), rgba(15, 76, 92, 0.015));
}

.message-feed-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.message-feed-meta,
.message-card-region,
.message-card-time,
.message-highlights p,
.message-group-header p {
  font-family: "Inter", "Helvetica Neue", sans-serif;
  font-size: 0.88rem;
  color: var(--ink-muted);
}

.message-group {
  border-top: 1px solid rgba(15, 23, 42, 0.08);
  padding-top: 1.1rem;
  margin-top: 1.1rem;
}

.message-group:first-of-type {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

.message-group-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  margin-bottom: 0.85rem;
}

.message-group-header h3 {
  margin: 0;
  font-size: 1.05rem;
}

.message-card-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.message-card {
  border: 1px solid #d8d3c8;
  background: rgba(255, 253, 248, 0.98);
  padding: 1rem;
}

.message-card--decoded {
  border-left: 4px solid #0f766e;
}

.message-card--partial {
  border-left: 4px solid #b45309;
}

.message-card--raw {
  border-left: 4px solid #7f1d1d;
}

.message-card h4 {
  margin: 0 0 0.55rem;
  font-size: 1rem;
}

.message-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.65rem;
}

.message-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.18rem 0.45rem;
  border-radius: 999px;
  font-family: "Inter", "Helvetica Neue", sans-serif;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.message-badge--code,
.message-badge--subject {
  background: #e6eef0;
  color: #24424a;
}

.message-badge--status {
  background: #efe9df;
  color: #5b4636;
}

.message-highlights {
  margin-top: 0.7rem;
  padding: 0.75rem 0.85rem;
  background: rgba(15, 76, 92, 0.05);
  border: 1px solid rgba(15, 76, 92, 0.12);
}

.message-highlights p {
  margin: 0 0 0.45rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.message-highlights ul {
  margin: 0;
  padding-left: 1rem;
}

.message-highlights li {
  margin-bottom: 0.35rem;
}

.navtex-footer {
  margin-top: 1.6rem;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .stats-grid,
  .coverage-grid {
    grid-template-columns: 1fr 1fr;
  }

  .map-header {
    flex-direction: column;
  }

  .message-feed-header,
  .message-group-header {
    flex-direction: column;
  }

  .map-meta {
    min-width: 0;
    text-align: left;
  }

  .message-card-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .navtex-page {
    padding: 1.6rem 0.9rem 2.6rem;
  }

  .navtex-panel {
    padding: 1.2rem 1rem;
  }

  .stats-grid,
  .coverage-grid {
    grid-template-columns: 1fr;
  }

  .hero-meta {
    gap: 0.45rem;
  }
}