:root{
  --ink:#12161c; --ink-soft:#3a434f; --muted:#67717e;
  --line:#e4e7ec; --bg:#ffffff; --bg-soft:#f6f8fa;
  --brand:#0b5cff; --brand-ink:#083fb0; --accent:#ff6a1a;
  --good:#0f7a4d; --card:#ffffff; --shadow:0 1px 2px rgba(16,22,28,.06),0 8px 24px rgba(16,22,28,.06);
  --wrap:1080px; --radius:14px;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.55;-webkit-font-smoothing:antialiased}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;margin:0 0 .4em}
h1{font-size:clamp(2rem,5vw,3.3rem);font-weight:800}
h2{font-size:clamp(1.5rem,3.4vw,2.2rem);font-weight:800;margin-top:0}
h3{font-size:1.15rem;font-weight:700}
p{margin:0 0 1rem}
a{color:var(--brand-ink)}
.lead{font-size:1.2rem;color:var(--ink-soft)}
.small{font-size:.9rem;color:var(--muted)}

/* top bar */
.bar{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.2) blur(8px);border-bottom:1px solid var(--line)}
.bar .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{font-weight:800;letter-spacing:-.03em;font-size:1.2rem}
.brand b{color:var(--brand)}
.bar .cta{font-size:.95rem}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.5rem;font-weight:700;text-decoration:none;border-radius:999px;padding:.85rem 1.4rem;border:1.5px solid transparent;cursor:pointer;transition:transform .06s ease, box-shadow .2s}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(255,106,26,.28)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-lg{padding:1.05rem 1.7rem;font-size:1.05rem}
.btns{display:flex;gap:.75rem;flex-wrap:wrap;align-items:center}

/* hero */
.hero{padding:clamp(3rem,7vw,5.5rem) 0 2.5rem;background:linear-gradient(180deg,var(--bg-soft),#fff)}
.eyebrow{display:inline-block;font-weight:700;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);background:#eaf1ff;padding:.35rem .7rem;border-radius:999px;margin-bottom:1rem}
.hero .lead{max-width:44ch}
.ring{font-variant-numeric:tabular-nums;white-space:nowrap}

/* sections */
section{padding:clamp(2.5rem,5vw,4rem) 0;border-top:1px solid var(--line)}
.section-soft{background:var(--bg-soft)}
.kicker{font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:.08em;font-size:.8rem;margin-bottom:.6rem}

/* proof */
.proof{background:var(--ink);color:#fff;border:0}
.proof h2{color:#fff}
.proof .num{font-size:clamp(2.4rem,6vw,3.6rem);font-weight:800;color:#fff;letter-spacing:-.03em}
.proof .num b{color:#ffd7bf}
.proof .small{color:#aab4c0}

/* cascade cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem 1.25rem 1.1rem;box-shadow:var(--shadow)}
.card h3{margin-bottom:.35rem}
.card p{margin:0;color:var(--ink-soft);font-size:.98rem}
.card .n{display:inline-flex;width:1.9rem;height:1.9rem;align-items:center;justify-content:center;border-radius:8px;background:#eaf1ff;color:var(--brand-ink);font-weight:800;font-size:.9rem;margin-bottom:.6rem}

/* three pillars */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.pillar{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem}
.pillar h3{color:var(--brand-ink)}

/* faq */
.faq details{border:1px solid var(--line);border-radius:12px;padding:.9rem 1.1rem;margin-bottom:.6rem;background:#fff}
.faq summary{font-weight:700;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq p{margin:.7rem 0 0;color:var(--ink-soft)}

/* final cta */
.final{background:linear-gradient(180deg,#0b1220,#111a2b);color:#fff;text-align:center;border:0}
.final h2{color:#fff}
.final p{color:#c7d0dc}
.final .btns{justify-content:center}

/* sticky mobile call */
.sticky-call{position:fixed;left:0;right:0;bottom:0;z-index:50;display:none;gap:.5rem;padding:.6rem 1rem;background:rgba(255,255,255,.96);border-top:1px solid var(--line);backdrop-filter:blur(8px)}
.sticky-call .btn{flex:1;justify-content:center}

footer{padding:2.5rem 0;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}
footer a{color:var(--muted)}

.center{text-align:center}
.mt{margin-top:1.4rem}
.tag{display:inline-block;background:#eef7f1;color:var(--good);font-weight:700;font-size:.8rem;padding:.25rem .6rem;border-radius:999px}

@media(max-width:820px){
  .pillars{grid-template-columns:1fr}
  .bar .cta{display:none}
  .sticky-call{display:flex}
  body{padding-bottom:70px}
}
@media(prefers-color-scheme:dark){
  :root{--ink:#eef1f5;--ink-soft:#c4ccd6;--muted:#98a2b0;--line:#28303a;--bg:#0d1117;--bg-soft:#131a22;--card:#141c25;--brand:#5b8cff;--brand-ink:#9db8ff}
  .bar{background:rgba(13,17,23,.9)}
  .btn-ghost{background:#141c25;color:var(--ink)}
  .eyebrow{background:#16233f;color:#9db8ff}
  .card .n{background:#16233f;color:#9db8ff}
  .sticky-call{background:rgba(13,17,23,.96)}
}

/* long-form beats */
.beat{max-width:760px;margin:0 auto 1.6rem;padding-bottom:1.4rem;border-bottom:1px solid var(--line)}
.beat:last-child{border-bottom:0}
.beat .n{display:inline-flex;width:2rem;height:2rem;align-items:center;justify-content:center;border-radius:8px;background:#eaf1ff;color:var(--brand-ink);font-weight:800;margin-bottom:.5rem}
.beat h3{font-size:1.3rem}
.beat p{color:var(--ink-soft);margin:0}
.narrow{max-width:760px;margin-inline:auto}

/* comparison */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;max-width:820px;margin:1.4rem auto 0}
.compare>div{padding:1.4rem}
.compare .them{background:var(--bg-soft)}
.compare .us{background:#fff;border-left:1px solid var(--line)}
.compare h4{margin:0 0 .8rem;font-size:1.05rem}
.compare ul{margin:0;padding-left:1.1rem}
.compare li{margin:.4rem 0;color:var(--ink-soft)}
.compare .us li{color:var(--ink)}

/* arithmetic callout */
.calc{max-width:760px;margin:1.4rem auto 0;background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:1.3rem 1.5rem;font-variant-numeric:tabular-nums}
.calc .row{display:flex;justify-content:space-between;gap:1rem;padding:.35rem 0;border-bottom:1px dashed var(--line)}
.calc .row:last-child{border-bottom:0;font-weight:800;color:var(--ink)}
.calc .row span:first-child{color:var(--ink-soft)}

/* price */
.price-card{max-width:520px;margin:1.4rem auto 0;text-align:center;background:#fff;border:2px solid var(--brand);border-radius:var(--radius);padding:1.8rem;box-shadow:var(--shadow)}
.price-card .fig{font-size:2.4rem;font-weight:800;letter-spacing:-.03em}
.price-card .fig small{font-size:1rem;font-weight:600;color:var(--muted)}
.price-card p{margin:.4rem 0 0;color:var(--ink-soft)}

@media(max-width:720px){.compare{grid-template-columns:1fr}.compare .us{border-left:0;border-top:1px solid var(--line)}}
@media(prefers-color-scheme:dark){.compare .us,.price-card{background:var(--card)}.compare .them,.calc{background:#0f1720}}