/* VGP — Private by design. Dark premium crypto aesthetic. */
:root {
  --bg: #060912;
  --bg-elev: #0c1222;
  --bg-card: #10182b;
  --border: rgba(59, 130, 246, 0.18);
  --border-strong: rgba(34, 211, 238, 0.35);
  --text: #e8eef9;
  --muted: #8b9bb8;
  --accent: #3b82f6;
  --accent-2: #22d3ee;
  --accent-glow: rgba(59, 130, 246, 0.35);
  --danger: #f87171;
  --success: #34d399;
  --radius: 14px;
  --font: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", ui-monospace, Menlo, monospace;
  --max: 1100px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }

.bg-grid {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(59,130,246,0.22), transparent 60%),
    radial-gradient(ellipse 40% 40% at 90% 20%, rgba(34,211,238,0.08), transparent 50%),
    linear-gradient(rgba(59,130,246,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.03) 1px, transparent 1px);
  background-size: auto, auto, 48px 48px, 48px 48px;
}

.wrap { position: relative; z-index: 1; }

/* Nav */
.nav {
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--max); margin: 0 auto; padding: 1.1rem 1.5rem;
}
.logo {
  display: flex; align-items: center; gap: 0.6rem;
  font-weight: 800; font-size: 1.25rem; letter-spacing: 0.04em;
  color: var(--text); text-decoration: none;
}
.logo-mark {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 8px;
  display: grid; place-items: center;
  box-shadow: 0 0 20px var(--accent-glow);
}
.logo-mark svg { width: 18px; height: 18px; }
.nav-links { display: flex; gap: 1.4rem; align-items: center; flex-wrap: wrap; }
.nav-links a { color: var(--muted); font-size: 0.92rem; text-decoration: none; }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  background: linear-gradient(135deg, var(--accent), #2563eb);
  color: #fff !important; padding: 0.45rem 1rem; border-radius: 999px;
  font-weight: 600; box-shadow: 0 0 24px var(--accent-glow);
}
.nav-cta:hover { filter: brightness(1.1); text-decoration: none; }
.nav-toggle {
  display: none; background: transparent; border: 1px solid var(--border);
  color: var(--text); border-radius: 8px; padding: 0.4rem 0.6rem; cursor: pointer;
}

/* Hero */
.hero {
  max-width: var(--max); margin: 0 auto; padding: 4rem 1.5rem 3rem;
  text-align: center;
}
.badge {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.35rem 0.85rem; border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: rgba(34, 211, 238, 0.08);
  color: var(--accent-2); font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 1.4rem;
}
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 3.8rem);
  line-height: 1.08; margin: 0 0 0.75rem; font-weight: 800;
  letter-spacing: -0.03em;
}
.hero h1 .grad {
  background: linear-gradient(135deg, #fff 20%, var(--accent-2) 70%, var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .subtitle {
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  color: var(--muted); max-width: 620px; margin: 0 auto 2rem;
}
.hero-ctas { display: flex; gap: 0.9rem; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 0.45rem;
  padding: 0.85rem 1.5rem; border-radius: 999px; font-weight: 700;
  font-size: 1rem; border: none; cursor: pointer; text-decoration: none;
  transition: transform 0.15s, filter 0.15s, box-shadow 0.15s;
}
.btn:hover { transform: translateY(-1px); text-decoration: none; }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #1d4ed8);
  color: #fff; box-shadow: 0 8px 32px var(--accent-glow);
}
.btn-primary:hover { filter: brightness(1.1); }
.btn-ghost {
  background: transparent; color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--accent-2); color: var(--accent-2); }
.price-pill {
  margin-top: 1.5rem; color: var(--muted); font-size: 0.95rem;
}
.price-pill strong { color: var(--accent-2); font-size: 1.15rem; }

/* Sections */
section { max-width: var(--max); margin: 0 auto; padding: 4rem 1.5rem; }
.section-label {
  color: var(--accent-2); font-size: 0.78rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 0.6rem;
}
section h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.3rem); margin: 0 0 0.75rem;
  letter-spacing: -0.02em; font-weight: 800;
}
.lead { color: var(--muted); max-width: 640px; margin-bottom: 2rem; }

/* Problem */
.problem-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.card:hover {
  border-color: var(--border-strong);
  box-shadow: 0 0 40px rgba(59, 130, 246, 0.08);
}
.card h3 { margin: 0 0 0.5rem; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }
.card .icon {
  width: 40px; height: 40px; border-radius: 10px; margin-bottom: 0.9rem;
  display: grid; place-items: center;
  background: rgba(59, 130, 246, 0.12); color: var(--accent-2); font-size: 1.2rem;
}

/* Features / crypto table */
.feat-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem; margin-bottom: 2rem;
}
.crypto-table-wrap {
  overflow-x: auto; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--bg-elev);
}
table.crypto {
  width: 100%; border-collapse: collapse; font-size: 0.92rem;
}
table.crypto th, table.crypto td {
  padding: 0.85rem 1.1rem; text-align: left;
  border-bottom: 1px solid var(--border);
}
table.crypto th {
  color: var(--muted); font-weight: 600; font-size: 0.78rem;
  text-transform: uppercase; letter-spacing: 0.06em;
  background: rgba(59, 130, 246, 0.06);
}
table.crypto td code, .mono {
  font-family: var(--mono); color: var(--accent-2); font-size: 0.88em;
}
table.crypto tr:last-child td { border-bottom: none; }

/* How it works */
.steps {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.2rem; counter-reset: step;
}
.step {
  position: relative; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.5rem 1.4rem 1.4rem;
}
.step::before {
  counter-increment: step;
  content: counter(step);
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #061018; font-weight: 800; font-size: 0.9rem; margin-bottom: 0.9rem;
}
.step h3 { margin: 0 0 0.4rem; }
.step p { margin: 0; color: var(--muted); font-size: 0.95rem; }
.step pre {
  margin: 0.9rem 0 0; padding: 0.75rem 0.9rem;
  background: #060a14; border-radius: 8px; overflow-x: auto;
  font-family: var(--mono); font-size: 0.78rem; color: #a5f3fc;
  border: 1px solid var(--border);
}

/* Pricing */
.pricing-card {
  max-width: 420px; margin: 0 auto;
  background: linear-gradient(160deg, #121a30 0%, #0c1426 100%);
  border: 1px solid var(--border-strong);
  border-radius: 20px; padding: 2.2rem 2rem;
  text-align: center;
  box-shadow: 0 0 60px rgba(59, 130, 246, 0.15);
}
.pricing-card .tier {
  color: var(--accent-2); font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; font-size: 0.8rem; margin-bottom: 0.5rem;
}
.pricing-card .amount {
  font-size: 3.4rem; font-weight: 800; letter-spacing: -0.03em;
  line-height: 1; margin: 0.3rem 0;
}
.pricing-card .amount span { font-size: 1.1rem; color: var(--muted); font-weight: 600; }
.pricing-card .once { color: var(--muted); margin-bottom: 1.4rem; }
.pricing-card ul {
  list-style: none; padding: 0; margin: 0 0 1.6rem; text-align: left;
}
.pricing-card li {
  padding: 0.45rem 0 0.45rem 1.6rem; position: relative; color: var(--text);
  font-size: 0.95rem;
}
.pricing-card li::before {
  content: "✓"; position: absolute; left: 0; color: var(--success); font-weight: 700;
}
.checkout-note {
  margin-top: 1rem; font-size: 0.85rem; color: var(--muted);
}
.checkout-note.warn { color: #fbbf24; }

/* FAQ */
.faq details {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 1rem 1.2rem; margin-bottom: 0.6rem;
}
.faq summary {
  cursor: pointer; font-weight: 600; list-style: none;
  display: flex; justify-content: space-between; align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent-2); font-size: 1.2rem; }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--muted); margin: 0.75rem 0 0; font-size: 0.95rem; }

/* Footer */
footer {
  border-top: 1px solid var(--border);
  margin-top: 2rem; padding: 2.5rem 1.5rem 3rem;
  max-width: var(--max); margin-left: auto; margin-right: auto;
}
.footer-grid {
  display: flex; flex-wrap: wrap; gap: 2rem; justify-content: space-between;
  margin-bottom: 2rem;
}
.footer-links { display: flex; gap: 1.2rem; flex-wrap: wrap; }
.footer-links a { color: var(--muted); font-size: 0.9rem; }
.legal {
  font-size: 0.78rem; color: #5a6a85; max-width: 720px; line-height: 1.5;
}

/* Download page */
.download-box {
  max-width: 640px; margin: 2rem auto; padding: 2rem;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius);
}
.download-box.locked { opacity: 0.85; }
.artifact {
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem; padding: 0.9rem 0; border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.artifact:last-child { border-bottom: none; }
.artifact code { font-family: var(--mono); color: var(--accent-2); }
.input-row {
  display: flex; gap: 0.6rem; flex-wrap: wrap; margin: 1rem 0;
}
.input-row input {
  flex: 1; min-width: 160px; padding: 0.7rem 1rem;
  border-radius: 10px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text); font-size: 1rem;
}
.legal-page { max-width: 720px; margin: 0 auto; padding: 3rem 1.5rem 4rem; }
.legal-page h1 { margin-top: 0; }
.legal-page p, .legal-page li { color: var(--muted); }

@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute;
    top: 64px; right: 1rem; left: 1rem; background: var(--bg-elev);
    border: 1px solid var(--border); border-radius: 12px; padding: 1rem;
    z-index: 20;
  }
  .nav-toggle { display: block; }
  .nav { position: relative; }
  .hero { padding-top: 2.5rem; }
}

/* Modern differences */
.diff-list {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
  max-width: 720px;
}
.diff-list li {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.85rem 1.1rem;
  color: var(--muted);
  font-size: 0.98rem;
}
.diff-list li strong { color: var(--text); }
.diff-list code { font-family: var(--mono); color: var(--accent-2); font-size: 0.9em; }
.diff-note {
  margin-top: 1.25rem;
  color: var(--muted);
  font-size: 0.95rem;
  max-width: 720px;
}