:root {
  --ink: #16211f; --muted: #5c6b68; --faint: #8b9694;
  --teal: #0e8fa0; --teal-dark: #0b6e7c; --teal-pale: #e1f0f1;
  --bg: #f7fafa; --card: #fff; --border: #e1e8e7;
  --peach: #ffe6d8; --mint: #d9f3ec; --terracotta: #c4623f; --purple: #7b5cc4;
  --radius: 20px;
}
* { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: ui-sans-serif, -apple-system, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  color: var(--ink); background: var(--bg); line-height: 1.55; -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { line-height: 1.1; letter-spacing: -0.025em; font-family: ui-rounded, "SF Pro Rounded", ui-sans-serif, sans-serif; }
.wrap { width: min(1080px, 100% - 40px); margin-inline: auto; }
a { color: inherit; }

/* nav */
nav { display: flex; justify-content: space-between; align-items: center; padding: 22px 0; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; text-decoration: none; letter-spacing: -0.02em; }
.logo i { width: 30px; height: 30px; border-radius: 10px; background: linear-gradient(135deg, #38c4b0, var(--teal)); display: grid; place-items: center; color: #fff; font-style: normal; font-size: 16px; }
.nav-cta { font-weight: 600; font-size: 15px; text-decoration: none; color: var(--teal-dark); }

/* hero */
.hero-bg { background: radial-gradient(900px 480px at 85% -10%, var(--peach), transparent 60%), radial-gradient(800px 500px at 0% 0%, var(--mint), transparent 60%); }
.hero { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; padding: 48px 0 96px; }
.pill { display: inline-block; background: var(--teal-pale); color: var(--teal-dark); font-weight: 600; font-size: 13px; padding: 6px 14px; border-radius: 999px; margin-bottom: 22px; }
h1 { font-size: clamp(40px, 6vw, 68px); font-weight: 800; }
h1 em { font-style: normal; color: var(--teal); }
.lede { font-size: 19px; color: var(--muted); margin: 22px 0 30px; max-width: 520px; }

/* form */
.join { max-width: 520px; }
.seg { display: inline-flex; background: #fff; border: 1px solid var(--border); border-radius: 999px; padding: 4px; margin-bottom: 12px; }
.seg label { cursor: pointer; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span { display: block; padding: 7px 16px; border-radius: 999px; font-size: 14px; font-weight: 600; color: var(--muted); transition: .15s; }
.seg input:checked + span { background: var(--teal); color: #fff; }
.seg input:focus-visible + span { outline: 2px solid var(--teal-dark); outline-offset: 2px; }
.row { display: flex; gap: 10px; }
.row input[type=email] { flex: 1; min-width: 0; font: inherit; padding: 15px 20px; border-radius: 999px; border: 1px solid var(--border); background: #fff; }
.row input[type=email]:focus { outline: 2px solid var(--teal); border-color: transparent; }
button.cta { font: inherit; font-weight: 700; padding: 15px 26px; border: 0; border-radius: 999px; background: var(--teal); color: #fff; cursor: pointer; white-space: nowrap; box-shadow: 0 8px 20px -8px var(--teal); transition: transform .15s, background .15s; }
button.cta:hover:not(:disabled) { background: var(--teal-dark); transform: translateY(-1px); }
button.cta:disabled { opacity: .7; cursor: default; }
.hp { position: absolute; left: -9999px; height: 0; overflow: hidden; }
.form-note { min-height: 24px; margin-top: 12px; font-size: 14px; color: var(--faint); }
.form-note.ok { color: #1c8a5b; font-weight: 600; }
.form-note.err { color: #c0392b; font-weight: 600; }
.join.done .row, .join.done .seg { opacity: .55; pointer-events: none; }

/* phone mock */
.phone { justify-self: center; width: 290px; background: #fff; border-radius: 42px; padding: 14px; border: 1px solid var(--border); box-shadow: 0 40px 80px -30px rgba(14,143,160,.35), 0 10px 30px -10px rgba(0,0,0,.1); transform: rotate(3deg); }
.screen { background: var(--bg); border-radius: 30px; padding: 22px 16px 18px; }
.screen small { color: var(--faint); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; }
.screen h4 { font-size: 20px; margin: 6px 0 14px; letter-spacing: -0.02em; }
.opt { display: flex; align-items: center; gap: 10px; background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 11px 13px; font-size: 13.5px; font-weight: 600; margin-bottom: 8px; }
.opt b { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.opt.sel { border-color: var(--terracotta); background: #fff6f1; }
.resp { margin-top: 12px; background: var(--teal-pale); border-radius: 14px; padding: 12px 13px; font-size: 13px; color: var(--teal-dark); }
.resp strong { display: block; margin-bottom: 2px; }

/* sections */
section { padding: 88px 0; }
.eyebrow { color: var(--teal); font-weight: 700; font-size: 13px; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 12px; }
h2 { font-size: clamp(30px, 4vw, 46px); font-weight: 800; max-width: 700px; }
.sub { color: var(--muted); font-size: 18px; margin-top: 16px; max-width: 620px; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 48px; }
.step { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.step .n { width: 34px; height: 34px; border-radius: 50%; background: var(--teal-pale); color: var(--teal-dark); font-weight: 800; display: grid; place-items: center; margin-bottom: 16px; }
.step h3 { font-size: 18px; margin-bottom: 6px; }
.step p { color: var(--muted); font-size: 15px; }
.step.hl { background: var(--teal); border-color: var(--teal); }
.step.hl .n { background: rgba(255,255,255,.2); color: #fff; }
.step.hl h3, .step.hl p { color: #fff; }

.split { background: #fff; border-block: 1px solid var(--border); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 44px; }
.card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.card .dot { width: 12px; height: 12px; border-radius: 50%; margin-bottom: 14px; }
.card h3 { font-size: 17px; margin-bottom: 6px; }
.card p { color: var(--muted); font-size: 15px; }

.two { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 44px; }
.mode { border-radius: 26px; padding: 34px; }
.mode.a { background: var(--mint); } .mode.b { background: var(--peach); }
.mode h3 { font-size: 24px; margin-bottom: 10px; }
.mode ul { list-style: none; padding: 0; margin-top: 16px; display: grid; gap: 8px; }
.mode li { padding-left: 26px; position: relative; color: #33423f; }
.mode li::before { content: "✓"; position: absolute; left: 0; color: var(--teal-dark); font-weight: 800; }

.final { text-align: center; }
.final .wrap { background: linear-gradient(135deg, var(--teal), #17b3a3); border-radius: 36px; padding: 72px 24px; color: #fff; }
.final h2 { margin-inline: auto; } .final .sub { margin-inline: auto; color: rgba(255,255,255,.85); }
.final .join { margin: 32px auto 0; text-align: left; }
.final .seg { display: flex; justify-content: center; width: fit-content; margin-inline: auto; margin-bottom: 12px; }
.final .form-note { color: rgba(255,255,255,.8); text-align: center; }
.final .form-note.ok, .final .form-note.err { color: #fff; }
.final button.cta { background: var(--ink); box-shadow: none; }

footer { padding: 40px 0 56px; color: var(--faint); font-size: 14px; text-align: center; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s, transform .6s; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding-bottom: 56px; }
  .phone { transform: none; }
  .steps, .cards, .two { grid-template-columns: 1fr; }
  section { padding: 60px 0; }
  .row { flex-direction: column; }
}