:root{
  --ink:#0f172a; --ink-2:#1e293b; --ink-3:#334155; --mute:#64748b; --line:#e2e8f0;
  --bg:#ffffff; --bg-2:#f8fafc; --paper:#fbfbfd;
  --accent:#14b8a6; --accent-2:#2dd4bf; --accent-ink:#0f766e;
  --radius:16px; --max:1120px;
  --sans:'Inter',system-ui,-apple-system,Segoe UI,sans-serif;
  --head:'Space Grotesk','Inter',system-ui,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}
a{color:inherit}
h1,h2,h3{font-family:var(--head);letter-spacing:-0.01em;line-height:1.12;margin:0 0 .5em}
h1{font-size:clamp(2.4rem,5.2vw,4rem);font-weight:700}
h2{font-size:clamp(1.7rem,3.2vw,2.4rem);font-weight:700}
h3{font-size:1.1rem;font-weight:600}
p{margin:0 0 1em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
section{padding:88px 0}
.eyebrow{font-size:.82rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-ink);margin-bottom:.9em}
.section-lede{font-size:1.15rem;color:var(--ink-3);max-width:46rem;margin-bottom:2.2em}

/* nav */
.nav{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:28px;padding:14px 20px;background:rgba(255,255,255,.85);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--head);font-weight:700;font-size:1.25rem;text-decoration:none;color:var(--ink)}
.brand-mark{width:30px;height:30px}
.nav nav{display:flex;gap:22px;margin-left:auto}
.nav nav a{text-decoration:none;color:var(--ink-3);font-weight:500;font-size:.95rem}
.nav nav a:hover{color:var(--ink)}

/* buttons */
.btn{display:inline-block;background:var(--ink);color:#fff;text-decoration:none;font-weight:600;padding:14px 22px;border-radius:999px;border:1px solid var(--ink);transition:transform .12s ease,background .12s ease}
.btn:hover{background:var(--ink-2);transform:translateY(-1px)}
.btn-small{padding:9px 16px;font-size:.92rem}
.btn-ghost{background:transparent;color:var(--ink)}
.btn-ghost:hover{background:var(--bg-2)}
.btn-light{background:#fff;color:var(--ink);border-color:#fff}
.btn-light:hover{background:var(--accent-2)}

/* hero */
.hero{display:grid;grid-template-columns:1.15fr 1fr;gap:48px;align-items:center;max-width:var(--max);margin:0 auto;padding:96px 20px 80px}
.lede{font-size:1.25rem;color:var(--ink-3);max-width:34rem}
.lede em{font-style:normal;font-weight:600;color:var(--ink)}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin:1.6em 0 1em}
.fineprint{font-size:.9rem;color:var(--mute)}
.hero-art{position:relative;display:flex;justify-content:center}
.phone{width:290px;background:var(--ink);color:#e2e8f0;border-radius:36px;padding:26px 20px 22px;box-shadow:0 30px 60px -20px rgba(15,23,42,.45),inset 0 0 0 6px #1e293b;font-size:.9rem}
.phone-top{display:flex;align-items:center;gap:8px;font-family:var(--head);font-weight:600;color:#fff;margin-bottom:14px}
.phone-top .dot{width:10px;height:10px;border-radius:50%;background:var(--accent-2)}
.phone-title{font-weight:600;color:#fff;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid #334155}
.phone-q{color:#94a3b8;font-size:.82rem;margin-top:10px}
.phone-a{background:#1e293b;border-radius:10px;padding:9px 11px;margin-top:6px;color:#fff}
.phone-timer{display:flex;align-items:center;gap:8px;margin-top:16px;font-variant-numeric:tabular-nums;color:#94a3b8;font-size:.82rem}
.phone-timer span{flex:1;height:4px;border-radius:2px;background:linear-gradient(90deg,var(--accent-2) 68%,#334155 68%)}
.phone-btn{margin-top:14px;background:var(--accent-2);color:var(--ink);font-weight:600;text-align:center;border-radius:12px;padding:12px}
.badge-float{position:absolute;right:0;bottom:-18px;background:#fff;border:1px solid var(--line);box-shadow:0 12px 30px -12px rgba(15,23,42,.35);border-radius:999px;padding:9px 14px 9px 10px;display:flex;align-items:center;gap:8px;font-size:.85rem;font-weight:500;white-space:nowrap}

/* sections */
.problem{background:var(--bg-2)}
.grid{display:grid;gap:20px}
.grid.three{grid-template-columns:repeat(3,1fr)}
.grid.four{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px}
.card p{margin:0;color:var(--ink-3)}
.problem h2{max-width:36rem;margin-bottom:1.2em}

.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,1fr);gap:28px 40px;counter-reset:s}
.steps li{position:relative;padding-left:56px}
.steps .num{position:absolute;left:0;top:2px;width:40px;height:40px;border-radius:50%;background:var(--ink);color:#fff;font-family:var(--head);font-weight:700;display:flex;align-items:center;justify-content:center}
.steps p{color:var(--ink-3);margin:0}

.receiver{background:var(--ink);color:#e2e8f0}
.receiver .eyebrow{color:var(--accent-2)}
.receiver h2{color:#fff}
.receiver .section-lede{color:#cbd5e1}
.mail{background:#fff;color:var(--ink);border-radius:var(--radius);max-width:760px;overflow:hidden;box-shadow:0 30px 60px -30px rgba(0,0,0,.6)}
.mail-head{display:flex;gap:14px;align-items:center;padding:20px 24px;border-bottom:1px solid var(--line)}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--ink);color:#fff;font-weight:600;display:flex;align-items:center;justify-content:center;font-size:.9rem}
.mail-from{font-weight:600}
.mail-from span{color:var(--mute);font-weight:400}
.mail-subj{color:var(--ink-3);font-size:.95rem}
.avowal{margin:16px 24px 0;border:1px solid #99f6e4;background:#f0fdfa;border-radius:12px;padding:16px 18px}
.avowal-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:.9rem;color:var(--ink-3)}
.avowal-head strong{color:var(--ink)}
.avowal-intro{margin:12px 0 6px;font-weight:600;font-size:.95rem}
.avowal dl{margin:0}
.avowal dt{font-style:italic;color:var(--ink-3);font-size:.92rem;margin-top:8px}
.avowal dd{margin:2px 0 0;font-weight:500}
.mail-body{padding:20px 24px 26px;color:var(--ink-3)}
.mail-body p:last-child{margin:0}

.tiers{background:var(--bg-2)}
.tier-label{display:inline-block;font-family:var(--head);font-weight:700;font-size:1.05rem;margin-bottom:10px}
.tier-main{border-color:var(--accent);box-shadow:0 0 0 3px #ccfbf1}

.beyond h2{max-width:40rem}
.chips{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:10px}
.chips li{border:1px solid var(--line);background:var(--bg-2);border-radius:999px;padding:8px 14px;font-weight:500;font-size:.95rem}

.faq{background:var(--bg-2)}
.faq .wrap{max-width:800px}
details{border-bottom:1px solid var(--line);padding:18px 0}
summary{cursor:pointer;font-weight:600;font-size:1.05rem;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:var(--head);font-size:1.4rem;color:var(--mute);line-height:1}
details[open] summary::after{content:"−"}
details p{margin:12px 0 0;color:var(--ink-3)}

.access{background:var(--ink);color:#fff;text-align:center}
.access .section-lede{margin-left:auto;margin-right:auto;color:#cbd5e1}
.access h2{color:#fff}

.foot{border-top:1px solid var(--line);padding:26px 0;font-size:.9rem;color:var(--mute)}
.foot-row{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.foot a{color:var(--ink-3)}

@media (max-width:900px){
  .grid.four{grid-template-columns:repeat(2,1fr)}
  .hero{grid-template-columns:1fr;padding-top:64px}
  .hero-art{margin-top:16px}
  .nav nav{display:none}
}
@media (max-width:640px){
  section{padding:64px 0}
  .grid.three,.grid.four{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .badge-float{position:static;margin-top:28px;white-space:normal}
  .hero-art{flex-direction:column;align-items:center}
}