:root {
  --nv-navy:  #0D1117;
  --nv-gold:  #C9A84C;
  --nv-cream: #E8E3D3;
  --nv-stone: #8B8778;
  --nv-soft:  #1a1f2a;
  --nv-line:  #2a2f3a;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--nv-navy);
  color: var(--nv-cream);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--nv-gold); text-decoration: none; transition: opacity .15s; }
a:hover { opacity: .85; }

code, pre {
  font-family: var(--font-mono);
  font-size: .92em;
}
code {
  background: var(--nv-soft);
  border: 1px solid var(--nv-line);
  padding: .12em .4em;
  border-radius: 4px;
  color: var(--nv-cream);
}
pre {
  background: var(--nv-soft);
  border: 1px solid var(--nv-line);
  border-left: 3px solid var(--nv-gold);
  padding: 1rem 1.25rem;
  border-radius: 4px;
  overflow-x: auto;
  line-height: 1.55;
}
pre code {
  background: transparent;
  border: 0;
  padding: 0;
}
pre code i { color: var(--nv-stone); font-style: italic; }

/* Top bar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: rgba(13, 17, 23, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--nv-line);
}
.brand {
  display: flex;
  align-items: baseline;
  gap: .5rem;
  color: var(--nv-cream);
  font-family: var(--font-display);
}
.brand-x   { color: var(--nv-gold); font-size: 1.6rem; }
.brand-name{ font-size: 1.4rem; font-weight: 600; letter-spacing: .01em; }
.brand-sub { font-family: var(--font-mono); color: var(--nv-stone); font-size: .8rem; text-transform: uppercase; letter-spacing: .15em; }
.topnav { display: flex; gap: 1.5rem; }
.topnav a { color: var(--nv-cream); font-size: .92rem; }
.topnav a:hover { color: var(--nv-gold); }

@media (max-width: 720px) {
  .topbar { padding: .75rem 1rem; }
  .topnav { gap: .8rem; flex-wrap: wrap; justify-content: flex-end; }
  .topnav a { font-size: .82rem; }
}

/* Layout */
.container {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 2rem 6rem;
}
.section {
  margin-top: 4rem;
}
@media (max-width: 720px) {
  .container { padding: 0 1rem 4rem; }
  .section { margin-top: 2.5rem; }
}

/* Hero */
.hero { padding: 5rem 0 2rem; border-bottom: 1px solid var(--nv-line); }
.eyebrow {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--nv-gold);
  text-transform: uppercase;
  letter-spacing: .2em;
  margin: 0 0 1rem;
}
.display {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.1;
  margin: 0 0 1.25rem;
  color: var(--nv-cream);
}
.lede {
  font-size: 1.1rem;
  color: var(--nv-cream);
  max-width: 36em;
  margin: 0 0 2rem;
}
.cta-row { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn-primary, .btn-ghost {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: .95rem;
  padding: .7rem 1.4rem;
  border-radius: 4px;
  display: inline-block;
  transition: transform .12s, opacity .12s;
}
.btn-primary {
  background: var(--nv-gold);
  color: var(--nv-navy);
}
.btn-primary:hover { transform: translateY(-1px); opacity: 1; }
.btn-ghost {
  background: transparent;
  color: var(--nv-cream);
  border: 1px solid var(--nv-line);
  font-family: var(--font-mono);
  font-size: .85rem;
}
.btn-ghost:hover { border-color: var(--nv-gold); color: var(--nv-gold); }

/* Headings */
h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.9rem;
  margin: 0 0 1rem;
  color: var(--nv-cream);
}
h3 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1.05rem;
  margin: 1.6rem 0 .5rem;
  color: var(--nv-gold);
  text-transform: uppercase;
  letter-spacing: .08em;
}
p { margin: 0 0 1rem; }

/* Tables */
.route-table, .tier-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  font-size: .92rem;
}
.route-table th, .tier-table th,
.route-table td, .tier-table td {
  padding: .6rem .9rem;
  text-align: left;
  border-bottom: 1px solid var(--nv-line);
  vertical-align: top;
}
.route-table th, .tier-table th {
  color: var(--nv-gold);
  text-transform: uppercase;
  font-size: .78rem;
  letter-spacing: .12em;
  font-weight: 500;
}
.route-table td:first-child { font-family: var(--font-mono); font-size: .85rem; }
.tier-table th:not(:first-child),
.tier-table td:not(:first-child) { text-align: center; }
.tier-table td:nth-child(4) { color: var(--nv-gold); font-weight: 500; }

/* Feature list */
.features {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
}
.features li {
  padding: .8rem 0 .8rem 1.5rem;
  border-bottom: 1px solid var(--nv-line);
  position: relative;
}
.features li:last-child { border-bottom: 0; }
.features li::before {
  content: '✕';
  color: var(--nv-gold);
  position: absolute;
  left: 0;
  top: .9rem;
  font-size: .9rem;
}

/* Footer */
.footer {
  border-top: 1px solid var(--nv-line);
  padding: 2rem;
  text-align: center;
  color: var(--nv-stone);
  font-size: .85rem;
}
.footer-meta { margin-top: .4rem; font-family: var(--font-mono); font-size: .8rem; }
.footer code { background: transparent; border: 0; padding: 0; color: var(--nv-stone); }