:root {
  --green-dark: #0d7a1e;
  --green-bright: #39d61a;
  --ink: #12181a;
  --muted: #5b665e;
  --bg: #ffffff;
  --card: #f4f6f5;
  --border: #e3e8e5;
  --radius: 14px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ---- header ---- */
header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; height: 72px; gap: 32px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; text-decoration: none; }
.brand img { width: 28px; height: 28px; }
.nav-links { display: none; gap: 28px; margin-left: auto; }
.nav-links a { text-decoration: none; color: var(--muted); font-size: 14.5px; font-weight: 500; }
.nav-links a:hover { color: var(--ink); }
.nav-cta { display: inline-flex; margin-left: auto; padding: 9px 16px; font-size: 13.5px; }
@media (min-width: 760px) {
  .nav-links { display: flex; }
  .nav-cta { margin-left: 0; padding: 12px 22px; font-size: 14.5px; }
}

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border: none; border-radius: 999px; cursor: pointer;
  font-weight: 600; font-size: 14.5px; padding: 12px 22px;
  text-decoration: none; white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--green-dark), var(--green-bright));
  color: #ffffff;
}
.btn-primary:hover { filter: brightness(1.06); }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--border); }

/* ---- hero ---- */
.hero { padding: 88px 0 64px; text-align: center; }
.eyebrow {
  display: inline-block; font-size: 12.5px; font-weight: 700; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--green-dark);
  background: color-mix(in srgb, var(--green-bright) 14%, transparent);
  border-radius: 999px; padding: 6px 14px; margin-bottom: 22px;
}
.hero h1 { font-size: clamp(32px, 5vw, 54px); line-height: 1.08; margin: 0 0 20px; letter-spacing: -0.02em; }
.hero h1 .accent {
  background: linear-gradient(135deg, var(--green-dark), var(--green-bright));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead { max-width: 640px; margin: 0 auto 36px; color: var(--muted); font-size: 18px; }

.waitlist-form { display: flex; gap: 10px; max-width: 460px; margin: 0 auto; flex-wrap: wrap; justify-content: center; }
.waitlist-form input[type="email"] {
  flex: 1 1 240px; padding: 13px 16px; border-radius: 999px; border: 1px solid var(--border);
  font-size: 15px; outline: none;
}
.waitlist-form input[type="email"]:focus { border-color: var(--green-bright); }
.form-note { margin-top: 14px; font-size: 13px; color: var(--muted); }
.form-status { margin-top: 14px; font-size: 14px; font-weight: 600; min-height: 20px; }
.form-status.ok { color: var(--green-dark); }
.form-status.err { color: #c0392b; }

.hero-badges { display: flex; gap: 28px; justify-content: center; margin-top: 48px; flex-wrap: wrap; color: var(--muted); font-size: 13.5px; }
.hero-badges span { display: flex; align-items: center; gap: 8px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green-bright); flex: none; }

/* ---- sections ---- */
section { padding: 72px 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-head .eyebrow { margin-bottom: 14px; }
.section-head h2 { font-size: clamp(26px, 3.4vw, 36px); margin: 0 0 14px; letter-spacing: -0.01em; }
.section-head p { color: var(--muted); font-size: 16px; margin: 0; }

.grid-2 { display: grid; grid-template-columns: 1fr; gap: 20px; }
@media (min-width: 760px) { .grid-2 { grid-template-columns: 1fr 1fr; } }
.grid-4 { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 640px) { .grid-4 { grid-template-columns: 1fr 1fr; } }
@media (min-width: 980px) { .grid-4 { grid-template-columns: repeat(4, 1fr); } }

.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px;
}
.card h3 { margin: 0 0 10px; font-size: 19px; }
.card p { margin: 0; color: var(--muted); font-size: 14.5px; }
.card .icon {
  width: 44px; height: 44px; border-radius: 12px; margin-bottom: 16px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--green-dark), var(--green-bright));
  color: #fff; font-size: 20px; font-weight: 700;
}

.step { position: relative; }
.step .num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 50%; margin-bottom: 16px;
  background: var(--ink); color: #fff; font-weight: 700; font-size: 14px;
}

#security { background: var(--ink); color: #f2f5f3; border-radius: 28px; margin: 0 24px; }
#security .wrap { max-width: 1080px; }
#security .section-head p { color: #b7c2bc; }
#security .card { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.12); }
#security .card p { color: #b7c2bc; }
#security .card h3 { color: #fff; }

.platform-row { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.platform-pill {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 20px; border-radius: 999px; border: 1px solid var(--border); background: var(--card);
  font-size: 14.5px; font-weight: 600;
}
.platform-pill.soon { opacity: 0.55; }
.platform-pill .tag { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; padding: 2px 8px; border-radius: 999px; }
.platform-pill.ready .tag { background: color-mix(in srgb, var(--green-bright) 20%, transparent); color: var(--green-dark); }
.platform-pill.soon .tag { background: var(--border); color: var(--muted); }

.faq-item { border-bottom: 1px solid var(--border); padding: 20px 0; }
.faq-item summary { cursor: pointer; font-weight: 600; font-size: 16px; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 22px; color: var(--muted); font-weight: 400; }
.faq-item[open] summary::after { content: "\2212"; }
.faq-item p { color: var(--muted); margin: 14px 0 0; font-size: 15px; }

.cta-banner {
  border-radius: 28px; padding: 56px 32px; text-align: center;
  background: linear-gradient(135deg, var(--green-dark), var(--green-bright));
  color: #fff; margin: 0 24px;
}
.cta-banner h2 { font-size: clamp(24px, 3vw, 34px); margin: 0 0 14px; }
.cta-banner p { opacity: 0.92; margin: 0 0 28px; }
.cta-banner .waitlist-form input[type="email"] { border: none; }
.cta-banner .btn-primary { background: var(--ink); }

footer { padding: 48px 0; color: var(--muted); font-size: 13.5px; }
.footer-row { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; align-items: center; border-top: 1px solid var(--border); padding-top: 28px; }
.footer-brand { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--ink); }
.footer-brand img { width: 18px; height: 18px; }