:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --ink: #101623;
  --muted: #566074;
  --line: #dfe3ea;
  --accent: #0b5fff;
  --accent-ink: #ffffff;
  --dark: #0d1424;
  --dark-ink: #e9edf5;
  --radius: 14px;
  --max: 1120px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.2; letter-spacing: -0.015em; text-wrap: balance; margin: 0 0 0.6em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.25rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
a { color: var(--accent); }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; background: var(--surface); padding: 8px 12px; z-index: 10; }

/* Header */
.site-header { background: var(--surface); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.brand { font-weight: 800; font-size: 1.15rem; color: var(--ink); text-decoration: none; letter-spacing: -0.02em; }
.brand span { color: var(--accent); }
.nav { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.nav a { color: var(--ink); text-decoration: none; font-size: 0.95rem; font-weight: 500; }
.nav a:hover { color: var(--accent); }

/* Buttons */
.btn { display: inline-block; padding: 13px 22px; border-radius: 999px; font-weight: 650; text-decoration: none; border: 2px solid transparent; transition: transform .15s ease, background .15s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: var(--accent-ink) !important; }
.btn-primary:hover { background: #094fd6; }
.btn-ghost { border-color: currentColor; color: inherit !important; }
.btn-small { padding: 9px 16px; font-size: 0.92rem; }

/* Hero */
.hero { background: var(--dark); color: var(--dark-ink); padding: clamp(56px, 9vw, 112px) 0; }
.hero .eyebrow { color: #8fb4ff; }
.hero p.lead { font-size: clamp(1.1rem, 2vw, 1.3rem); color: #c3cbdb; max-width: 62ch; }
.hero .actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }
.engines { list-style: none; padding: 0; margin: 40px 0 0; display: flex; flex-wrap: wrap; gap: 10px; }
.engines li { border: 1px solid #2b3550; border-radius: 999px; padding: 6px 14px; font-size: 0.9rem; color: #c3cbdb; }

.eyebrow { text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.8rem; font-weight: 700; color: var(--accent); margin-bottom: 14px; }

/* Sections */
section { padding: clamp(52px, 7vw, 92px) 0; }
section.alt { background: var(--surface); border-block: 1px solid var(--line); }
.section-head { max-width: 68ch; margin-bottom: 36px; }
.section-head p { color: var(--muted); }

.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
section.alt .card { background: var(--bg); }
.card p:last-child { margin-bottom: 0; }
.card p { color: var(--muted); }

.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; }
.steps li { counter-increment: step; position: relative; padding: 0 0 26px 62px; }
.steps li::before { content: counter(step); position: absolute; left: 0; top: 0; width: 42px; height: 42px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); display: grid; place-items: center; font-weight: 700; }
.steps li p { color: var(--muted); margin: 0; }

.tags { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.tags li { background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 8px 16px; font-weight: 550; font-size: 0.95rem; }

.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li { padding: 0 0 12px 30px; position: relative; }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 800; }

/* FAQ */
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 0 22px; margin-bottom: 12px; }
.faq summary { cursor: pointer; font-weight: 650; padding: 18px 0; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font-size: 1.3rem; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--muted); }

/* CTA */
.cta { background: var(--dark); color: var(--dark-ink); text-align: center; }
.cta p { color: #c3cbdb; max-width: 60ch; margin-inline: auto; }
.cta .actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 26px; }

/* Legal pages */
.legal { padding: clamp(40px, 6vw, 72px) 0; }
.legal .wrap { max-width: 780px; }
.legal h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); }
.legal h2 { font-size: 1.35rem; margin-top: 2em; }
.legal h3 { margin-top: 1.5em; }
.legal address { font-style: normal; margin-bottom: 1em; }

/* Footer */
.site-footer { background: var(--surface); border-top: 1px solid var(--line); padding: 28px 0; font-size: 0.92rem; color: var(--muted); }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.site-footer nav { display: flex; gap: 20px; }
.site-footer a { color: var(--muted); }

@media (max-width: 640px) {
  .nav a:not(.btn) { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}