:root {
  --pw: #2f6bff; --pw-dark: #1f4fd6;
  --card: #18a05e; --photo: #f59e0b; --note: #8b5cf6; --code: #6457e8; --id: #0ea5a4;
  --ink: #14162a; --mut: #5b6170; --line: #e7e8ef; --bg: #ffffff; --soft: #f5f7fb;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --wrap: 1080px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font); color: var(--ink); background: var(--bg); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--pw); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 .4em; }
h2 { font-size: clamp(26px, 4vw, 36px); }
p { margin: 0 0 1em; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 22px; }
.mut { color: var(--mut); }
.logo { display: inline-flex; width: 30px; height: 30px; border-radius: 9px; background: var(--pw); color: #fff; align-items: center; justify-content: center; font-size: 16px; vertical-align: middle; }

/* buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; background: var(--pw); color: #fff; border: 1px solid var(--pw); border-radius: 12px; padding: 13px 22px; font-size: 16px; font-weight: 600; cursor: pointer; }
.btn:hover { background: var(--pw-dark); border-color: var(--pw-dark); text-decoration: none; }
.btn.ghost { background: transparent; color: var(--pw); border-color: var(--line); }
.btn.ghost:hover { background: var(--soft); }
.btn.btn-sm { padding: 9px 15px; font-size: 14.5px; border-radius: 10px; }

/* nav */
.nav { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 22px; background: rgba(255,255,255,.86); backdrop-filter: saturate(160%) blur(10px); border-bottom: 1px solid var(--line); }
.nav .brand { display: inline-flex; align-items: center; gap: 9px; font-weight: 700; font-size: 19px; color: var(--ink); }
.nav .brand:hover { text-decoration: none; }
.nav nav { display: flex; align-items: center; gap: 18px; }
.nav nav a { color: var(--ink); font-size: 14.5px; font-weight: 500; }
.nav nav a[aria-current="page"] { color: var(--pw); }

/* hero */
.hero { text-align: center; padding: 84px 22px 64px; background: radial-gradient(1100px 480px at 50% -8%, #eaf1ff 0%, #fff 62%); }
.hero h1 { font-size: clamp(40px, 7vw, 68px); font-weight: 800; }
.hero .lede { font-size: clamp(17px, 2.4vw, 21px); color: var(--mut); max-width: 640px; margin: 0 auto 28px; }
.hero .cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero .trust { margin-top: 26px; font-size: 14px; color: var(--mut); }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--pw); background: #eaf1ff; padding: 6px 12px; border-radius: 30px; margin-bottom: 18px; }

/* sections */
section { padding: 68px 0; }
.section-head { text-align: center; max-width: 620px; margin: 0 auto 40px; }
.section-head p { color: var(--mut); font-size: 17px; }
.alt { background: var(--soft); }

/* feature grid */
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.feat { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 22px; }
.feat .ic { width: 46px; height: 46px; border-radius: 13px; display: flex; align-items: center; justify-content: center; font-size: 22px; color: #fff; margin-bottom: 12px; background: #0f1222; }
.ic.pw { background: var(--pw); } .ic.card { background: var(--card); } .ic.photo { background: var(--photo); }
.ic.note { background: var(--note); } .ic.code { background: var(--code); } .ic.id { background: var(--id); } .ic.dark { background: #0f1222; }
.grid.row2 { margin-top: 16px; }
.center-cta { text-align: center; margin-top: 28px; }
.feat h3 { font-size: 17px; margin-bottom: 4px; }
.feat p { font-size: 14.5px; color: var(--mut); margin: 0; }

/* how it works */
.steps { counter-reset: step; display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.step { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 24px; position: relative; }
.step::before { counter-increment: step; content: counter(step); display: flex; width: 34px; height: 34px; border-radius: 50%; background: var(--pw); color: #fff; font-weight: 700; align-items: center; justify-content: center; margin-bottom: 12px; }
.note-band { margin-top: 26px; background: #fff7e6; border: 1px solid #f6d98a; color: #8a5a00; border-radius: 14px; padding: 16px 18px; font-size: 14.5px; }

/* why / pillars */
.pillars { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.pillar { padding: 20px; border-left: 3px solid var(--pw); background: #fff; }
.pillar h3 { font-size: 16px; }
.pillar p { font-size: 14.5px; color: var(--mut); margin: 0; }

/* pricing */
.tiers { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); align-items: stretch; }
.tier { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 26px; display: flex; flex-direction: column; }
.tier.flag { border-color: var(--pw); box-shadow: 0 10px 30px rgba(47,107,255,.12); position: relative; }
.tier.flag .badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--pw); color: #fff; font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 20px; }
.tier h3 { font-size: 19px; }
.price { font-size: 34px; font-weight: 800; letter-spacing: -.02em; }
.price small { font-size: 14px; font-weight: 500; color: var(--mut); }
.tier ul { list-style: none; padding: 0; margin: 16px 0 22px; font-size: 14.5px; }
.tier li { padding: 6px 0 6px 26px; position: relative; color: #2c3140; }
.tier li::before { content: "✓"; position: absolute; left: 0; color: var(--card); font-weight: 700; }
.tier .btn { margin-top: auto; justify-content: center; }
.price-note { text-align: center; color: var(--mut); font-size: 13.5px; margin-top: 18px; }

/* security */
.sec-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.sec { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 22px; }
.sec code { background: var(--soft); padding: 2px 6px; border-radius: 6px; font-family: var(--mono); font-size: 13px; }

/* faq */
.faq { max-width: 760px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--line); padding: 16px 0; }
.faq summary { font-weight: 600; cursor: pointer; font-size: 16.5px; }
.faq details p { margin: 10px 0 0; color: var(--mut); font-size: 15px; }

/* final cta */
.final { text-align: center; background: linear-gradient(135deg, var(--pw), #5b86ff); color: #fff; border-radius: 22px; padding: 56px 28px; margin: 0 22px; }
.final h2 { color: #fff; }
.final p { color: #e7eeff; max-width: 520px; margin: 0 auto 24px; }
.final .btn { background: #fff; color: var(--pw); border-color: #fff; }
.final .btn:hover { background: #eef3ff; }

/* footer */
.footer { background: #0f1222; color: #c9cde0; padding: 52px 22px 28px; margin-top: 72px; }
.footer-in { max-width: var(--wrap); margin: 0 auto; display: flex; flex-wrap: wrap; gap: 40px; justify-content: space-between; }
.footer .logo { background: var(--pw); }
.footer strong { color: #fff; }
.footer .mut { color: #8b90a8; font-size: 14px; }
.footcols { display: flex; gap: 48px; flex-wrap: wrap; }
.footcols h4 { color: #fff; font-size: 13px; text-transform: uppercase; letter-spacing: .05em; margin: 0 0 10px; }
.footcols a { display: block; color: #c9cde0; font-size: 14px; padding: 3px 0; }
.footcols a:hover { color: #fff; }
.copyright { max-width: var(--wrap); margin: 32px auto 0; padding-top: 22px; border-top: 1px solid #242842; color: #8b90a8; font-size: 13px; }

/* markdown doc pages */
.doc { max-width: 800px; margin: 0 auto; padding: 48px 22px 24px; }
.doc-body { font-size: 16px; }
.doc-body h1 { font-size: 32px; }
.doc-body h2 { font-size: 24px; margin-top: 1.6em; border-bottom: 1px solid var(--line); padding-bottom: .3em; }
.doc-body h3 { font-size: 18px; margin-top: 1.3em; }
.doc-body code { background: var(--soft); padding: 2px 6px; border-radius: 6px; font-family: var(--mono); font-size: 14px; }
.doc-body pre { background: var(--soft); padding: 16px; border-radius: 12px; overflow-x: auto; }
.doc-body table { border-collapse: collapse; width: 100%; margin: 1em 0; }
.doc-body th, .doc-body td { border: 1px solid var(--line); padding: 8px 12px; text-align: left; font-size: 14.5px; }
.doc-body blockquote { border-left: 3px solid var(--pw); margin: 1em 0; padding: 4px 16px; background: var(--soft); color: var(--mut); }

@media (max-width: 680px) {
  .nav nav { gap: 12px; }
  .nav nav a:not(.btn) { display: none; }
  section { padding: 48px 0; }
}