/* OffshoreBlueprint — dark/navy theme, serif headings, sans-serif body */
:root {
  --navy: #0a1628;
  --navy-light: #111d33;
  --navy-mid: #1a2a44;
  --gold: #c9a84c;
  --gold-light: #e3c96e;
  --gold-dim: rgba(201,168,76,0.15);
  --text: #d4d8e0;
  --text-muted: #8a92a4;
  --text-bright: #f0f2f5;
  --border: rgba(201,168,76,0.2);
  --max-w: 720px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--navy);
  color: var(--text);
  line-height: 1.7;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5 {
  font-family: 'Georgia', 'Times New Roman', serif;
  color: var(--text-bright);
  line-height: 1.3;
}

a { color: var(--gold); text-decoration: none; }
a:hover { color: var(--gold-light); }

/* Sticky nav */
.top-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,22,40,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.top-nav .brand {
  font-family: Georgia, serif;
  font-size: 1.15rem; font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.5px;
}
.btn-unlock {
  display: inline-block;
  background: var(--gold);
  color: var(--navy);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 8px 20px;
  border-radius: 6px;
  border: none; cursor: pointer;
  transition: background 0.2s;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.btn-unlock:hover { background: var(--gold-light); color: var(--navy); }

/* Container */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* Hero */
.hero {
  padding: 80px 24px 48px;
  max-width: var(--max-w);
  margin: 0 auto;
}
.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 16px;
  color: var(--text-bright);
}
.hero .subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  max-width: 560px;
}
.meta-tags {
  display: flex; flex-wrap: wrap; gap: 12px;
  font-size: 0.82rem; color: var(--text-muted);
}
.meta-tags span {
  background: var(--navy-mid);
  padding: 4px 12px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

/* Article sections */
.article { padding: 0 24px 64px; max-width: var(--max-w); margin: 0 auto; }
.article h2 {
  font-size: 1.6rem;
  margin: 48px 0 16px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.article h3 {
  font-size: 1.2rem;
  margin: 32px 0 12px;
  color: var(--gold);
}
.article p { margin-bottom: 16px; }
.article ul, .article ol {
  margin: 0 0 16px 24px;
}
.article li { margin-bottom: 8px; }
.article strong { color: var(--text-bright); }

/* Comparison table */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0 28px;
  font-size: 0.92rem;
}
.comparison-table th {
  background: var(--navy-mid);
  color: var(--gold);
  text-align: left;
  padding: 10px 14px;
  border: 1px solid var(--border);
  font-family: Georgia, serif;
  font-weight: 600;
}
.comparison-table td {
  padding: 10px 14px;
  border: 1px solid var(--border);
  background: var(--navy-light);
}
.comparison-table tr:hover td { background: var(--navy-mid); }

/* Architecture diagram (text-based) */
.arch-diagram {
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 28px 24px;
  margin: 24px 0;
  text-align: center;
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
  color: var(--gold);
  line-height: 1.8;
}
.arch-diagram .label {
  display: inline-block;
  background: var(--gold-dim);
  border: 1px solid var(--gold);
  border-radius: 6px;
  padding: 8px 18px;
  margin: 6px 4px;
  font-weight: 700;
}
.arch-diagram .arrow {
  color: var(--text-muted);
  font-size: 1.4rem;
  display: block;
  margin: 4px 0;
}

/* Callout boxes */
.callout {
  background: var(--navy-light);
  border-left: 4px solid var(--gold);
  padding: 18px 20px;
  margin: 24px 0;
  border-radius: 0 8px 8px 0;
}
.callout.warning {
  border-left-color: #e57c23;
}
.callout.success {
  border-left-color: #3cb371;
}
.callout h4 {
  font-size: 1rem;
  margin-bottom: 8px;
  font-family: -apple-system, sans-serif;
}

/* Cost preview */
.cost-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 24px 0;
}
.cost-box {
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  text-align: center;
}
.cost-box .price {
  font-family: Georgia, serif;
  font-size: 1.8rem;
  color: var(--gold);
  font-weight: 700;
}
.cost-box .label { font-size: 0.85rem; color: var(--text-muted); margin-top: 4px; }
.cost-box.highlight { border-color: var(--gold); }

/* Paywall */
.paywall-zone { position: relative; }
.paywall-blur {
  filter: blur(6px);
  -webkit-filter: blur(6px);
  user-select: none;
  pointer-events: none;
  max-height: 300px;
  overflow: hidden;
}
.paywall-overlay {
  position: relative;
  margin-top: -80px;
  background: linear-gradient(to bottom, transparent 0%, var(--navy) 30%);
  padding: 120px 24px 64px;
  text-align: center;
  max-width: var(--max-w);
  margin-left: auto;
  margin-right: auto;
}
.paywall-overlay h2 {
  border: none; padding-top: 0; margin-top: 0;
  font-size: 1.6rem;
}
.paywall-features {
  list-style: none;
  margin: 24px auto;
  padding: 0;
  max-width: 400px;
  text-align: left;
}
.paywall-features li {
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}
.paywall-features li::before {
  content: '✓ ';
  color: var(--gold);
  font-weight: 700;
}
.btn-buy {
  display: inline-block;
  background: var(--gold);
  color: var(--navy);
  font-weight: 800;
  font-size: 1.1rem;
  padding: 16px 40px;
  border-radius: 8px;
  margin-top: 24px;
  transition: background 0.2s, transform 0.1s;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.btn-buy:hover {
  background: var(--gold-light);
  color: var(--navy);
  transform: translateY(-1px);
}
.price-note {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 12px;
}

/* Bank tier cards */
.bank-tier {
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin: 16px 0;
}
.bank-tier h4 {
  color: var(--gold);
  font-family: Georgia, serif;
  margin-bottom: 8px;
}

/* Action checklist */
.checklist {
  list-style: none;
  margin: 20px 0;
  padding: 0;
  counter-reset: step;
}
.checklist li {
  counter-increment: step;
  padding: 14px 14px 14px 52px;
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 8px;
  position: relative;
}
.checklist li::before {
  content: counter(step);
  position: absolute;
  left: 14px; top: 14px;
  background: var(--gold);
  color: var(--navy);
  width: 26px; height: 26px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.8rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* Responsive */
@media (max-width: 640px) {
  body { font-size: 16px; }
  .hero { padding: 48px 16px 32px; }
  .article { padding: 0 16px 48px; }
  .cost-compare { grid-template-columns: 1fr; }
  .top-nav { padding: 12px 16px; }
  .top-nav .brand { font-size: 1rem; }
  .btn-unlock { padding: 6px 14px; font-size: 0.78rem; }
  .comparison-table { font-size: 0.8rem; }
  .comparison-table th, .comparison-table td { padding: 8px 10px; }
}