:root {
  --bg: #ffffff;
  --fg: #0a0a0a;
  --muted: #f5f5f5;
  --muted-fg: #737373;
  --border: #e5e5e5;
  --primary: #171717;
  --primary-fg: #fafafa;
  --accent: #e76e50;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 8px 24px rgba(0,0,0,.06);
  --container: 1120px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 760px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 40px; padding: 0 16px; border-radius: 10px; font-weight: 600; font-size: 14px;
  border: 1px solid transparent; cursor: pointer; transition: all .15s ease; white-space: nowrap;
}
.btn-lg { height: 48px; padding: 0 22px; font-size: 15px; }
.btn-block { width: 100%; }
.btn-primary { background: var(--primary); color: var(--primary-fg); }
.btn-primary:hover { opacity: .9; }
.btn-outline { border-color: var(--border); background: var(--bg); color: var(--fg); }
.btn-outline:hover { background: var(--muted); }
.btn-ghost { background: transparent; color: var(--fg); }
.btn-ghost:hover { background: var(--muted); }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.8); backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 800; }
.brand-mark {
  width: 28px; height: 28px; border-radius: 8px; background: var(--primary); color: var(--primary-fg);
  display: grid; place-items: center; font-weight: 800; font-size: 16px;
}
.brand-name { font-size: 17px; letter-spacing: -.01em; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--muted-fg); font-size: 14px; font-weight: 500; }
.nav-links a:hover { color: var(--fg); }
.nav-cta { display: flex; gap: 8px; }

/* Hero */
.hero { padding: 84px 0 72px; border-bottom: 1px solid var(--border); }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.eyebrow {
  display: inline-block; font-size: 12px; font-weight: 600; color: var(--muted-fg);
  background: var(--muted); border: 1px solid var(--border); padding: 4px 10px; border-radius: 999px; margin-bottom: 18px;
}
.hero h1 { font-size: 56px; line-height: 1.05; letter-spacing: -.03em; font-weight: 800; }
.hero .accent { background: linear-gradient(transparent 62%, #f1d4cc 62%); padding: 0 2px; }
.lead { margin-top: 20px; font-size: 19px; color: var(--muted-fg); max-width: 30em; }
.hero-actions { margin-top: 28px; display: flex; gap: 12px; flex-wrap: wrap; }
.micro { margin-top: 14px; font-size: 13px; color: var(--muted-fg); }

/* Hero visual (window mock) */
.window { border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; background: var(--bg); }
.window-bar { display: flex; gap: 6px; padding: 12px 14px; background: var(--muted); border-bottom: 1px solid var(--border); }
.window-bar .dot { width: 11px; height: 11px; border-radius: 50%; background: #d4d4d4; }
.window-body { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; padding: 16px; }
.kbcol { background: var(--muted); border-radius: 12px; padding: 10px; min-height: 150px; }
.kbhead { font-size: 12px; font-weight: 700; color: var(--muted-fg); text-align: center; margin-bottom: 10px; }
.kbcard {
  background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 10px;
  box-shadow: 0 1px 2px rgba(0,0,0,.04); margin-bottom: 8px; display: flex; flex-direction: column; gap: 4px;
}
.kbcard b { font-size: 13px; }
.kbcard span { font-size: 12px; color: var(--muted-fg); }
.kbcard.win { border-color: #2a9d90; }

/* Sections */
.section { padding: 84px 0; }
.section-muted { background: var(--muted); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-head h2 { font-size: 36px; letter-spacing: -.02em; font-weight: 800; }
.section-head p { margin-top: 10px; font-size: 17px; color: var(--muted-fg); }

.grid { display: grid; gap: 20px; }
.features { grid-template-columns: repeat(3, 1fr); }
.card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.card .ic { font-size: 24px; }
.card h3 { margin: 14px 0 6px; font-size: 18px; letter-spacing: -.01em; }
.card p { color: var(--muted-fg); font-size: 15px; }

/* Band */
.band { padding: 84px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.band-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.band h2 { font-size: 34px; letter-spacing: -.02em; font-weight: 800; }
.band p { margin-top: 14px; color: var(--muted-fg); font-size: 17px; }
.checks { list-style: none; margin-top: 18px; display: grid; gap: 10px; }
.checks li { position: relative; padding-left: 28px; color: var(--fg); }
.checks li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  width: 18px; height: 18px; border-radius: 50%; background: var(--primary); color: var(--primary-fg);
  font-size: 11px; display: grid; place-items: center;
}
.steps { display: grid; gap: 16px; }
.step { display: flex; gap: 14px; align-items: flex-start; background: var(--bg); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.step span { flex: none; width: 30px; height: 30px; border-radius: 8px; background: var(--primary); color: var(--primary-fg); display: grid; place-items: center; font-weight: 700; }
.step b { font-size: 15px; }
.step p { color: var(--muted-fg); font-size: 14px; }

/* Pricing */
.pricing { grid-template-columns: repeat(2, 1fr); max-width: 760px; margin: 0 auto; }
.price { display: flex; flex-direction: column; }
.price h3 { font-size: 20px; }
.price .amount { font-size: 34px; font-weight: 800; margin: 8px 0 18px; letter-spacing: -.02em; }
.price .amount span { font-size: 15px; font-weight: 500; color: var(--muted-fg); }
.price .checks { flex: 1; margin-bottom: 22px; }
.price.featured { border-color: var(--primary); box-shadow: var(--shadow); position: relative; }
.ribbon { position: absolute; top: -11px; right: 20px; background: var(--primary); color: var(--primary-fg); font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 999px; }

/* FAQ */
details { background: var(--bg); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; margin-bottom: 12px; }
details summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; }
details summary::after { content: "+"; color: var(--muted-fg); font-size: 20px; }
details[open] summary::after { content: "–"; }
details p { margin-top: 12px; color: var(--muted-fg); }

/* CTA */
.cta { padding: 84px 0; }
.cta-inner { text-align: center; background: var(--primary); color: var(--primary-fg); border-radius: 24px; padding: 56px 24px; }
.cta-inner h2 { font-size: 34px; letter-spacing: -.02em; font-weight: 800; }
.cta-inner p { margin: 10px 0 24px; color: #d4d4d4; }
.cta-inner .btn-primary { background: var(--bg); color: var(--primary); }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 48px 0 28px; }
.footer-grid { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.site-footer nav { display: flex; gap: 22px; flex-wrap: wrap; }
.site-footer nav a { color: var(--muted-fg); font-size: 14px; }
.site-footer nav a:hover { color: var(--fg); }
.copyright { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--border); color: var(--muted-fg); font-size: 13px; }

/* Responsive */
@media (max-width: 900px) {
  .hero-grid, .band-grid { grid-template-columns: 1fr; }
  .features { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 42px; }
  .nav-links { display: none; }
}
@media (max-width: 600px) {
  .features, .pricing { grid-template-columns: 1fr; }
  .hero { padding: 56px 0; }
  .hero h1 { font-size: 34px; }
  .section, .band, .cta { padding: 56px 0; }
  .nav-cta .btn-ghost { display: none; }
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0a0a; --fg: #fafafa; --muted: #171717; --muted-fg: #a3a3a3;
    --border: #262626; --primary: #fafafa; --primary-fg: #171717;
  }
  .site-header { background: rgba(10,10,10,.8); }
  .hero .accent { background: linear-gradient(transparent 62%, #5a2c22 62%); }
  .window-bar .dot { background: #404040; }
  .cta-inner .btn-primary { background: var(--fg); color: var(--bg); }
}