/* ============================================================
   OilRoutes — Route notes (articles)
   Same design tokens as the live map. Scrollable pages, not
   a magazine skin and not a SaaS landing page.
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-primary: #0a0e13;
  --bg-secondary: #0f1419;
  --bg-tertiary: #151c24;
  --bg-elevated: #1a222d;
  --border-subtle: rgba(255,255,255,0.06);
  --border-medium: rgba(255,255,255,0.1);
  --text-primary: #e8eaed;
  --text-secondary: #9aa0a8;
  --text-tertiary: #5f6770;
  --color-accent: #c9a44e;
  --color-accent-muted: rgba(201,164,78,0.15);
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Geist Mono', 'SF Mono', 'Consolas', monospace;
}

html { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-primary);
  background: var(--bg-primary);
}

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

.notes-bar {
  position: sticky;
  top: 0;
  z-index: 20;
  height: 48px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
  backdrop-filter: blur(12px);
}

.notes-bar-inner {
  max-width: 820px;
  height: 100%;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.notes-bar .logo {
  width: 120px;
  height: 24px;
  color: var(--text-primary);
  display: block;
}

.notes-bar nav {
  margin-left: auto;
  display: flex;
  gap: 16px;
  font-size: 12px;
  font-weight: 500;
}

.notes-bar nav a {
  color: var(--text-secondary);
  text-decoration: none;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.notes-bar nav a:hover,
.notes-bar nav a[aria-current="page"] {
  color: var(--text-primary);
  text-decoration: none;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

.kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

h1 {
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: #fff;
  margin-bottom: 16px;
}

.dek {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding-bottom: 24px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--border-subtle);
}

.article h2 {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: #fff;
  margin: 36px 0 12px;
}

.article p,
.article li {
  color: var(--text-primary);
  margin-bottom: 16px;
}

.article ul {
  padding-left: 22px;
  margin-bottom: 16px;
}

.article li { margin-bottom: 8px; }

.pull {
  margin: 28px 0;
  padding: 16px 18px;
  background: var(--bg-tertiary);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 6px 6px 0;
}

.pull p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.sources {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

.sources h2 {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.sources ol {
  padding-left: 22px;
}

.sources li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.related {
  margin-top: 40px;
  padding: 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
}

.related h2 {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin: 0 0 12px;
}

.related ul { list-style: none; padding: 0; margin: 0; }
.related li { margin-bottom: 8px; font-size: 0.95rem; }
.related li:last-child { margin-bottom: 0; }

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

.note-card {
  display: block;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-subtle);
  text-decoration: none;
  color: inherit;
}

.note-card:last-child { border-bottom: none; }
.note-card:hover { text-decoration: none; }
.note-card:hover h2 { color: var(--color-accent); }

.note-card .kicker { margin-bottom: 8px; }

.note-card h2 {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 8px;
}

.note-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin: 0;
}

.page-intro {
  color: var(--text-secondary);
  margin-bottom: 8px;
}

footer.notes-foot {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 20px 48px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  color: var(--text-tertiary);
}

footer.notes-foot a { color: var(--text-secondary); }

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

@media (max-width: 640px) {
  h1 { font-size: 1.45rem; }
  .notes-bar .logo { width: 96px; height: 20px; }
}