/* AI Guide to Business — brand tokens */
:root {
  --bg: #000000;
  --blue: #3b82f6;
  --purple: #8b5cf6;
  --cyan: #06b6d4;
  --gold: #fbbf24;
  --green: #10b981;
  --red: #ef4444;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --glass: rgba(255, 255, 255, 0.04);
  --glass-border: rgba(255, 255, 255, 0.1);
  --grad: linear-gradient(135deg, var(--blue), var(--purple));
  --grad-wide: linear-gradient(135deg, var(--blue), var(--purple), var(--cyan));
  --radius: 16px;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; }
h1, h2, h3 { line-height: 1.15; margin: 0 0 0.5em; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.2rem, 6vw, 3.8rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 4vw, 2.5rem); font-weight: 700; }
h3 { font-size: 1.25rem; font-weight: 700; }
p { margin: 0 0 1em; }
.muted { color: var(--muted); }
.container { width: min(var(--max), 100% - 2rem); margin: 0 auto; }
section { padding: 5rem 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 3rem; }

/* gradient text + buttons */
.grad-text {
  background: var(--grad-wide);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.8rem 1.5rem; border-radius: 999px; font-weight: 600; font-size: 0.95rem;
  border: 1px solid transparent; cursor: pointer; transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 8px 30px rgba(59, 130, 246, 0.35); }
.btn-primary:hover { box-shadow: 0 12px 40px rgba(139, 92, 246, 0.45); }
.btn-ghost { background: var(--glass); border-color: var(--glass-border); color: var(--text); }
.btn-ghost:hover { background: rgba(255,255,255,0.08); }
.btn-gold { background: linear-gradient(135deg, var(--gold), #f59e0b); color: #111; box-shadow: 0 8px 30px rgba(251, 191, 36, 0.35); }
.btn-block { width: 100%; }

/* glass cards */
.glass {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255,255,255,0.06);
}

/* header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--glass-border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 1rem; }
.brand { display: flex; align-items: center; gap: 0.65rem; font-weight: 800; font-size: 1.05rem; }
.brand img { width: 40px; height: 40px; }
.nav-links { display: flex; align-items: center; gap: 1.75rem; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--muted); font-weight: 500; transition: color 0.15s; }
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-toggle { display: none; background: none; border: 1px solid var(--glass-border); color: var(--text); border-radius: 8px; padding: 0.4rem 0.6rem; font-size: 1.2rem; cursor: pointer; }

/* hero */
.hero { position: relative; padding: 6rem 0 5rem; text-align: center; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -20% -10% auto; height: 120%;
  background:
    radial-gradient(600px 400px at 30% 20%, rgba(59,130,246,0.25), transparent 60%),
    radial-gradient(600px 400px at 70% 30%, rgba(139,92,246,0.25), transparent 60%),
    radial-gradient(500px 300px at 50% 80%, rgba(6,182,212,0.15), transparent 60%);
  pointer-events: none; z-index: -1;
}
.hero .eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.35rem 0.9rem; border-radius: 999px;
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
  background: var(--glass); border: 1px solid var(--glass-border); margin-bottom: 1.5rem; color: var(--cyan);
}
.hero .eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px var(--green); }
.hero p.lead { font-size: 1.2rem; color: var(--muted); max-width: 640px; margin: 0 auto 2rem; }
.hero-ctas { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 2.5rem; justify-content: center; flex-wrap: wrap; margin-top: 3rem; color: var(--muted); font-size: 0.9rem; }
.hero-stats strong { display: block; font-size: 1.5rem; color: var(--text); }

/* milestones */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
.milestone { padding: 1.75rem; position: relative; transition: transform 0.2s, border-color 0.2s; }
.milestone:hover { transform: translateY(-4px); border-color: rgba(255,255,255,0.2); }
.milestone .step { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.milestone .icon { width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; margin: 1rem 0; font-size: 1.4rem; }
.milestone[data-color="blue"] .icon { background: rgba(59,130,246,0.15); color: var(--blue); }
.milestone[data-color="purple"] .icon { background: rgba(139,92,246,0.15); color: var(--purple); }
.milestone[data-color="cyan"] .icon { background: rgba(6,182,212,0.15); color: var(--cyan); }
.milestone[data-color="gold"] .icon { background: rgba(251,191,36,0.15); color: var(--gold); }
.milestone p { color: var(--muted); font-size: 0.95rem; margin: 0; }

/* pricing */
.pricing { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; align-items: stretch; }
.plan { padding: 2rem 1.5rem; display: flex; flex-direction: column; position: relative; }
.plan .tier { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.plan .price { font-size: 2.4rem; font-weight: 800; margin: 0.5rem 0 0; line-height: 1; }
.plan .price small { font-size: 0.9rem; font-weight: 500; color: var(--muted); }
.plan .tagline { color: var(--muted); font-size: 0.95rem; margin: 0.75rem 0 1.25rem; }
.plan ul { list-style: none; padding: 0; margin: 0 0 1.5rem; flex: 1; }
.plan li { padding: 0.4rem 0; font-size: 0.93rem; display: flex; gap: 0.6rem; align-items: flex-start; }
.plan li::before { content: "✓"; color: var(--green); font-weight: 700; flex-shrink: 0; }
.plan.featured {
  border-color: rgba(251, 191, 36, 0.6);
  box-shadow: 0 0 0 1px rgba(251,191,36,0.3), 0 0 40px rgba(251,191,36,0.3), 0 20px 60px rgba(0,0,0,0.6);
  transform: scale(1.03);
}
.plan.featured .price { color: var(--gold); }
.plan .badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, var(--gold), #f59e0b); color: #111;
  font-size: 0.72rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.35rem 0.9rem; border-radius: 999px; box-shadow: 0 4px 16px rgba(251,191,36,0.5); white-space: nowrap;
}

/* CTA band */
.cta-band { text-align: center; padding: 3.5rem 2rem; }
.cta-band h2 { margin-bottom: 0.5rem; }

/* footer */
.site-footer { border-top: 1px solid var(--glass-border); padding: 4rem 0 2rem; color: var(--muted); font-size: 0.92rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 2rem; margin-bottom: 3rem; }
.footer-grid h4 { color: var(--text); font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 1rem; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 0.6rem; }
.footer-grid a:hover { color: var(--text); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; border-top: 1px solid var(--glass-border); padding-top: 1.5rem; font-size: 0.85rem; }

/* generic page content */
.page-hero { padding: 4rem 0 2rem; text-align: center; }
.page-hero p { color: var(--muted); max-width: 620px; margin: 0 auto; font-size: 1.1rem; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.card { padding: 2rem; }
.card ol, .card ul { padding-left: 1.2rem; color: var(--muted); }
.card li { margin-bottom: 0.4rem; }
.pill { display: inline-block; padding: 0.25rem 0.7rem; border-radius: 999px; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; }
.pill-blue { background: rgba(59,130,246,0.15); color: var(--blue); }
.pill-purple { background: rgba(139,92,246,0.15); color: var(--purple); }
.pill-gold { background: rgba(251,191,36,0.15); color: var(--gold); }
.about-layout { display: grid; grid-template-columns: 280px 1fr; gap: 3rem; align-items: start; }
.avatar-placeholder {
  aspect-ratio: 1; border-radius: var(--radius); display: grid; place-items: center;
  background: var(--grad); color: #fff; font-weight: 700; text-align: center; padding: 1rem; font-size: 0.9rem;
}

/* reveal animation */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* responsive */
@media (max-width: 960px) {
  .grid-4, .pricing { grid-template-columns: repeat(2, 1fr); }
  .plan.featured { transform: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-layout { grid-template-columns: 1fr; }
  .avatar-placeholder { max-width: 280px; }
}
@media (max-width: 640px) {
  section { padding: 3.5rem 0; }
  .grid-4, .pricing, .grid-2, .footer-grid { grid-template-columns: 1fr; }
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 72px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: #000; border-bottom: 1px solid var(--glass-border); padding: 0.5rem 1rem 1rem;
  }
  .nav-links.open { display: flex; }
  .nav-links li { padding: 0.6rem 0; }
  .nav-links .btn { width: 100%; margin-top: 0.5rem; }
}

/* crew / signup */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.signup { display: grid; grid-template-columns: 1.1fr 1fr; gap: 2.5rem; align-items: center; }
.signup form { display: grid; gap: 1rem; }
.field { display: grid; gap: 0.35rem; }
.field span { font-size: 0.8rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
.field input, .field select {
  width: 100%; padding: 0.85rem 1rem; border-radius: 12px; font: inherit; color: var(--text);
  background: rgba(255,255,255,0.05); border: 1px solid var(--glass-border); outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.field select option { color: #111; }
.field input:focus, .field select:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(59,130,246,0.25); }
.check { display: flex; gap: 0.6rem; align-items: center; color: var(--muted); font-size: 0.95rem; cursor: pointer; }
.check input { width: 18px; height: 18px; accent-color: var(--purple); }
.form-status { min-height: 1.4em; margin: 0; font-size: 0.9rem; color: var(--muted); }
.form-status.ok { color: var(--green); }
.form-status.err { color: var(--red); }
.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li { padding: 0.6rem 0; border-bottom: 1px solid var(--glass-border); display: flex; gap: 0.6rem; align-items: flex-start; color: var(--muted); }
.checklist li:last-child { border-bottom: 0; }
.checklist li::before { content: "☐"; color: var(--cyan); flex-shrink: 0; }
a.eyebrow:hover { color: var(--text); }
@media (max-width: 960px) { .grid-3 { grid-template-columns: 1fr; } .signup { grid-template-columns: 1fr; } }