* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg-base);
  color: var(--text-body);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
img, svg { display: block; max-width: 100%; }

svg.icon {
  width: 1em; height: 1em;
  stroke: currentColor; fill: none;
  stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round;
  flex-shrink: 0;
}

.wrap { max-width: 1140px; margin: 0 auto; padding: 0 28px; }
.section { padding: 96px 0; border-top: 0.5px solid var(--border); }
.section:first-of-type { border-top: none; }
.section-tight { padding: 72px 0; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.06em; color: var(--accent); font-weight: 500;
  text-transform: uppercase; margin: 0 0 14px;
}
.eyebrow::before { content: "// "; color: var(--text-muted); }
h1, h2, h3 { font-family: var(--font-mono); color: var(--text-primary); margin: 0; font-weight: 500; letter-spacing: -0.005em; }
h1 { font-size: 48px; line-height: 1.12; }
h2 { font-size: 30px; line-height: 1.2; }
h3 { font-size: 17px; line-height: 1.35; }
p { color: var(--text-secondary); margin: 0; }
.lede { font-size: 18px; color: var(--text-secondary); line-height: 1.55; }

.section-head { max-width: 640px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

.site-nav {
  position: sticky; top: 0; z-index: 40;
  background: rgba(12,12,14,0.88); backdrop-filter: blur(10px);
  border-bottom: 0.5px solid var(--border);
}
.site-nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; position: relative; }
.brand { display: flex; align-items: center; gap: 9px; font-family: var(--font-mono); font-size: 14px; font-weight: 500; color: var(--text-primary); }
.brand-mark {
  width: 26px; height: 26px; border-radius: var(--radius-sm); background: var(--accent);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.brand-mark svg { font-size: 14px; color: var(--accent-on); }
.brand .os { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.05em; text-transform: uppercase; color: var(--text-secondary); }
.nav-links a:hover { color: var(--text-primary); }
.nav-actions { display: flex; align-items: center; gap: 14px; }
.nav-toggle {
  display: none; background: none; border: none; padding: 0;
  width: 38px; height: 38px; align-items: center; justify-content: center;
  color: var(--text-primary); border-radius: 8px; flex-shrink: 0;
}
.nav-toggle:hover { background: var(--surface-2); }
.nav-toggle svg { width: 22px; height: 22px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.05em;
  border-radius: var(--radius-sm); height: 46px; padding: 0 24px; font-size: 13px; font-weight: 500;
  border: none; white-space: nowrap; transition: filter 0.15s ease, transform 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}
.btn-primary { background: var(--accent); color: var(--accent-on); }
.btn-primary:hover { filter: brightness(1.08); transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--text-primary); border: 0.5px solid var(--border-strong); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm { height: 38px; padding: 0 18px; font-size: 12px; }
.btn-block { width: 100%; }
.link-arrow { font-family: var(--font-mono); font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-secondary); display: inline-flex; align-items: center; gap: 6px; }
.link-arrow:hover { color: var(--accent); }

.hero { padding: 88px 0 80px; border-top: none; }
.hero-grid { display: grid; grid-template-columns: 1fr; gap: 40px; align-items: center; }
.hero-copy h1 { margin-bottom: 20px; }
.hero-copy .lede { max-width: 560px; margin-bottom: 32px; }
.hero-ctas { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; margin-bottom: 14px; }
.hero-note { font-size: 12.5px; color: var(--text-muted); }

.mockup { background: var(--surface-1); border-radius: var(--radius-lg); border: 0.5px solid var(--border); overflow: hidden; display: flex; min-height: 360px; }
.mockup-side { width: 150px; flex-shrink: 0; background: var(--bg-base); padding: 22px 12px; display: flex; flex-direction: column; gap: 6px; }
.mockup-nav-item { font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.03em; font-size: 11px; color: var(--text-secondary); padding: 8px 10px; border-radius: var(--radius-sm); }
.mockup-nav-item.active { background: var(--accent); color: var(--accent-on); font-weight: 500; }
.mockup-main { flex: 1; padding: 22px; display: flex; flex-direction: column; gap: 14px; }
.mockup-stats { display: flex; gap: 10px; }
.mockup-stat { flex: 1; background: var(--surface-2); border-radius: var(--radius-md); padding: 12px 14px; }
.mockup-stat .k { font-family: var(--font-mono); font-size: 10px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-muted); display: block; margin-bottom: 8px; }
.mockup-stat .v { font-family: var(--font-mono); font-size: 18px; font-weight: 500; color: var(--text-primary); }
.mockup-chart { background: var(--surface-2); border-radius: var(--radius-md); padding: 14px; flex: 1; min-height: 110px; }
.mockup-chart .k { font-family: var(--font-mono); font-size: 10px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-muted); display: block; margin-bottom: 10px; }
.mockup-row { background: var(--surface-2); border-radius: var(--radius-sm); padding: 10px 14px; font-size: 12.5px; font-family: var(--font-mono); color: var(--text-body); }

.icp-list { list-style: none; margin: 22px 0 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.icp-list li { display: flex; gap: 12px; font-size: 15.5px; color: var(--text-body); align-items: flex-start; }
.icp-list svg { color: var(--accent); font-size: 18px; margin-top: 2px; flex-shrink: 0; }

.icon-rows { display: flex; flex-direction: column; }
.icon-row { display: flex; gap: 20px; padding: 26px 0; border-top: 0.5px solid var(--border); }
.icon-row:first-child { border-top: none; }
.icon-row .icon-circle { width: 48px; height: 48px; border-radius: 50%; background: var(--surface-accent-dim); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.icon-row .icon-circle svg { font-size: 22px; color: var(--accent); }
.icon-row h3 { margin-bottom: 6px; }
.icon-row p { font-size: 14.5px; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.feature-card { background: var(--surface-1); border-radius: var(--radius-lg); padding: 28px; border: 0.5px solid var(--border); transition: border-color 0.18s ease, transform 0.18s ease; }
.feature-card:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.feature-card .icon-circle { width: 46px; height: 46px; border-radius: 50%; background: var(--surface-accent-dim); display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
.feature-card .icon-circle svg { font-size: 20px; color: var(--accent); }
.feature-card h3 { margin-bottom: 8px; }
.feature-card p { font-size: 14px; line-height: 1.5; }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.step { background: var(--surface-1); border-radius: var(--radius-lg); padding: 26px; border: 0.5px solid var(--border); }
.step .num { font-family: var(--font-mono); font-size: 22px; font-weight: 500; color: var(--accent); margin-bottom: 16px; display: block; padding-bottom: 12px; border-bottom: 0.5px solid var(--border); }
.step h3 { margin-bottom: 8px; font-size: 16px; }
.step p { font-size: 13.5px; }

.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.compare-col { border-radius: var(--radius-lg); padding: 32px; }
.compare-col.bad { background: var(--surface-1); border: 0.5px solid var(--border); }
.compare-col.good { background: var(--surface-accent-dim); border: 1px solid var(--accent); }
.compare-col h3 { font-family: var(--font-mono); margin-bottom: 22px; font-size: 14px; text-transform: uppercase; letter-spacing: 0.05em; }
.compare-col.bad h3 { color: var(--text-secondary); }
.compare-col.good h3 { color: var(--accent); }
.compare-item { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 16px; font-size: 14.5px; }
.compare-item:last-child { margin-bottom: 0; }
.compare-item svg { flex-shrink: 0; margin-top: 2px; font-size: 17px; }
.compare-col.bad svg { color: var(--text-muted); }
.compare-col.good svg { color: var(--success); }
.compare-col.bad p, .compare-col.good p { color: var(--text-body); font-size: inherit; }

.guarantee-card { background: var(--surface-1); border-radius: var(--radius-lg); padding: 34px; border: 0.5px solid var(--border); }
.guarantee-card .icon-circle { width: 56px; height: 56px; border-radius: 50%; background: var(--surface-accent-dim); display: flex; align-items: center; justify-content: center; margin-bottom: 22px; }
.guarantee-card .icon-circle svg { font-size: 26px; color: var(--accent); }
.guarantee-card .big { font-family: var(--font-mono); font-size: 28px; font-weight: 500; color: var(--text-primary); margin-bottom: 6px; }
.guarantee-card .tag { font-family: var(--font-mono); font-size: 13px; font-weight: 500; text-transform: uppercase; letter-spacing: 0.04em; color: var(--accent); margin-bottom: 14px; }
.guarantee-card p { font-size: 14.5px; }

.faq { display: flex; flex-direction: column; }
.faq-item { border-top: 0.5px solid var(--border); }
.faq-item:last-child { border-bottom: 0.5px solid var(--border); }
.faq-q {
  width: 100%; background: none; border: none; text-align: left; padding: 22px 0;
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  font-size: 16px; font-weight: 600; color: var(--text-primary);
}
.faq-q svg { color: var(--text-muted); font-size: 18px; flex-shrink: 0; transition: transform 0.2s ease; }
.faq-item.open .faq-q svg { transform: rotate(45deg); color: var(--accent); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.25s ease; }
.faq-a-inner { padding: 0 0 22px; font-size: 14.5px; color: var(--text-secondary); max-width: 720px; line-height: 1.55; }
.faq-item.open .faq-a { max-height: 220px; }

.legal { max-width: 760px; }
.legal .updated { font-size: 13px; color: var(--text-muted); margin-bottom: 40px; }
.legal h2 { font-size: 24px; margin: 44px 0 14px; }
.legal h2:first-of-type { margin-top: 0; }
.legal p { font-size: 15px; line-height: 1.7; margin-bottom: 14px; }
.legal ul { margin: 0 0 14px; padding-left: 20px; }
.legal li { font-size: 15px; line-height: 1.7; color: var(--text-secondary); margin-bottom: 6px; }
.legal a { color: var(--accent); text-decoration: underline; }
.legal .callout { background: var(--surface-1); border: 0.5px solid var(--border); border-radius: var(--radius-md); padding: 18px 20px; font-size: 13.5px; color: var(--text-muted); margin-bottom: 40px; }

.cohort-banner {
  background: var(--surface-accent-dim); border: 1px solid var(--accent); border-radius: var(--radius-lg);
  padding: 48px; display: grid; grid-template-columns: 200px 1fr; gap: 40px; align-items: center;
}
.cohort-num { font-family: var(--font-mono); font-size: 80px; font-weight: 500; color: var(--accent); line-height: 1; }
.cohort-banner h3 { font-size: 22px; margin-bottom: 10px; }
.cohort-banner p { font-size: 14.5px; color: var(--text-body); max-width: 620px; }
.waitlist-form { display: flex; gap: 10px; flex-wrap: wrap; margin: 20px 0 10px; max-width: 520px; }
.waitlist-input { flex: 1 1 240px; margin-bottom: 0; }
.waitlist-submit { flex-shrink: 0; white-space: nowrap; }
.waitlist-note { font-size: 12px; color: var(--text-muted); max-width: 520px; margin: 0; transition: color 0.2s ease; }
.waitlist-note.is-success { color: var(--accent); font-weight: 600; }
.waitlist-note.is-error { color: #e46464; font-weight: 600; }
.waitlist-input.is-invalid { border-color: #e46464; }

.billing-toggle { display: inline-flex; align-items: center; gap: 4px; background: var(--surface-1); border: 0.5px solid var(--border); border-radius: var(--radius-md); padding: 4px; margin-bottom: 8px; }
.billing-toggle button { font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.04em; background: none; border: none; border-radius: var(--radius-sm); padding: 9px 18px; font-size: 12px; font-weight: 500; color: var(--text-secondary); transition: background-color 0.25s ease, color 0.25s ease, transform 0.15s ease; }
.billing-toggle button:hover:not(.active) { color: var(--text-primary); transform: translateY(-1px); }
.billing-toggle button.active { background: var(--accent); color: var(--accent-on); }
.billing-note { font-size: 12.5px; color: var(--text-muted); margin-bottom: 40px; }

.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: start; }
.price-card { background: var(--surface-1); border: 0.5px solid var(--border); border-radius: var(--radius-lg); padding: 34px 28px; position: relative; }
.price-card.featured { background: var(--surface-accent-dim); border: 1.5px solid var(--accent); }
.price-badge {
  position: absolute; top: -14px; left: 28px; background: var(--accent); color: var(--accent-on);
  font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: 0.05em; text-transform: uppercase;
  border-radius: var(--radius-sm); padding: 6px 14px;
}
.price-card h3 { font-size: 17px; margin-bottom: 4px; }
.price-card .for { font-size: 13px; color: var(--text-muted); margin-bottom: 20px; min-height: 34px; }
.price-amount { display: flex; align-items: baseline; gap: 6px; margin-bottom: 4px; }
.price-amount .num { font-family: var(--font-mono); font-size: 36px; font-weight: 500; color: var(--text-primary); }
.price-amount .per { font-family: var(--font-mono); font-size: 13px; color: var(--text-muted); }
.price-annual { font-size: 12.5px; color: var(--text-muted); margin-bottom: 26px; }
.price-feats { list-style: none; margin: 0 0 28px; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.price-feats li { display: flex; gap: 10px; font-size: 13.5px; color: var(--text-body); align-items: flex-start; }
.price-feats svg { color: var(--success); font-size: 16px; margin-top: 2px; flex-shrink: 0; }
.price-card.featured .price-feats svg { color: var(--accent); }

.site-footer { border-top: 0.5px solid var(--border); padding: 56px 0 40px; }
.footer-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 40px; flex-wrap: wrap; gap: 24px; }
.footer-tagline { font-size: 13.5px; color: var(--text-muted); max-width: 320px; margin-top: 10px; }
.footer-links { display: flex; gap: 40px; }
.footer-col h4 { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.07em; color: var(--text-muted); margin: 0 0 14px; }
.footer-col a { display: block; font-size: 13.5px; color: var(--text-secondary); margin-bottom: 10px; }
.footer-col a:hover { color: var(--text-primary); }
.footer-bottom { font-size: 12.5px; color: var(--text-muted); border-top: 0.5px solid var(--border); padding-top: 24px; }

.final-cta { text-align: center; padding: 100px 0; }
.final-cta h2 { max-width: 640px; margin: 0 auto 18px; }
.final-cta .lede { max-width: 480px; margin: 0 auto 34px; }

.contact-card { background: var(--surface-1); border: 0.5px solid var(--border); border-radius: var(--radius-lg); padding: 40px; max-width: 520px; margin: 0 auto; text-align: left; }
.field-label { font-size: 12px; color: var(--text-muted); display: block; margin-bottom: 6px; }
.field { width: 100%; background: var(--surface-2); border: 0.5px solid var(--border-strong); border-radius: var(--radius-sm); height: 42px; padding: 0 12px; color: var(--text-body); font-size: 14px; margin-bottom: 16px; }
.field-textarea { height: 90px; padding: 10px 12px; resize: vertical; }

@media (max-width: 900px) {
  h1 { font-size: 38px; }
  h2 { font-size: 28px; }
  .grid-3, .steps, .compare, .pricing-grid, .grid-2 { grid-template-columns: 1fr; }
  .cohort-banner { grid-template-columns: 1fr; text-align: left; padding: 32px; }
  .mockup { flex-direction: column; }
  .mockup-side { width: 100%; flex-direction: row; overflow-x: auto; }

  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--bg-base); border-bottom: 0.5px solid var(--border);
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 0 28px; margin: 0;
    max-height: 0; overflow: hidden; opacity: 0;
    transition: max-height 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease, padding 0.3s ease;
  }
  .nav-links.mobile-open { max-height: 320px; opacity: 1; padding: 8px 28px 20px; box-shadow: 0 16px 32px rgba(0,0,0,0.4); }
  .nav-links a { width: 100%; padding: 14px 0; border-top: 0.5px solid var(--border); font-size: 15px; }
  .nav-links a:first-child { border-top: none; }
  .nav-links a::after { display: none; }
}

@media (max-width: 560px) {
  .nav-actions .btn-sm { padding: 0 14px; font-size: 12.5px; }
}

.tech-corners { position: fixed; inset: 0; pointer-events: none; z-index: 3; }
.tech-corners span {
  position: absolute; width: 13px; height: 13px; color: var(--border-strong);
}
.tech-corners span::before,
.tech-corners span::after { content: ""; position: absolute; background: currentColor; }
.tech-corners span::before { top: 6px; left: 0; width: 13px; height: 1px; }
.tech-corners span::after { top: 0; left: 6px; width: 1px; height: 13px; }
.tech-corners .tl { top: 20px; left: 20px; }
.tech-corners .tr { top: 20px; right: 20px; }
.tech-corners .bl { bottom: 20px; left: 20px; }
.tech-corners .br { bottom: 20px; right: 20px; }
@media (max-width: 700px) { .tech-corners { display: none; } }