:root {
  --brand: #128c7e;
  --brand-deep: #0b5f56;
  --brand-tint: #e8f4f2;
  --ink: #14201e;
  --muted: #56645f;
  --rule: #dfe7e5;
  --bg: #ffffff;
  --surface: #f6faf9;
  --card: #ffffff;
  --brand-text: #128c7e;
}

@media (prefers-color-scheme: dark) {
  :root {
    --brand-tint: #16302d;
    --ink: #e6efed;
    --muted: #9fb0ac;
    --rule: #26332f;
    --bg: #0e1513;
    --surface: #131c1a;
    --card: #17211f;
    --brand-text: #5ccbbc;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
h1, h2, h3 { letter-spacing: -.02em; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: .55rem;
  background: #fff;
  color: var(--brand);
}

.brand-mark svg { width: 1.2rem; height: 1.2rem; }

/* Hero */

.nav {
  position: absolute;
  inset: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 68rem;
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  color: #fff;
  z-index: 1;
}

.nav-link { text-decoration: none; opacity: .85; font-weight: 500; }
.nav-link:hover { opacity: 1; }

.hero {
  background:
    radial-gradient(60rem 30rem at 85% 10%, rgba(255,255,255,.14), transparent 60%),
    linear-gradient(160deg, var(--brand) 0%, var(--brand-deep) 100%);
  color: #fff;
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 3rem;
  align-items: center;
  max-width: 68rem;
  margin: 0 auto;
  padding: 8rem 1.5rem 5rem;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 1.25rem;
  padding: .3rem .75rem;
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(2.3rem, 5vw, 3.6rem);
  line-height: 1.05;
}

.hero-sub {
  max-width: 34rem;
  margin: 0 0 2rem;
  font-size: 1.15rem;
  color: rgba(255,255,255,.88);
}

.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.5rem; }

.btn {
  display: inline-block;
  padding: .85rem 1.4rem;
  border-radius: .75rem;
  background: #fff;
  color: var(--brand-deep);
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(0,0,0,.18);
  transition: transform .15s ease, box-shadow .15s ease;
}

.btn:hover { transform: translateY(-1px); box-shadow: 0 12px 28px rgba(0,0,0,.24); }

.status { display: inline-flex; align-items: center; gap: .5rem; font-size: .95rem; color: rgba(255,255,255,.85); }
.dot { width: .55rem; height: .55rem; border-radius: 50%; background: #7ff0c9; box-shadow: 0 0 0 4px rgba(127,240,201,.25); }

/* Phone mockup */

.phone {
  justify-self: center;
  width: 100%;
  max-width: 19rem;
  padding: .65rem;
  border-radius: 2.4rem;
  background: #0a1210;
  box-shadow: 0 30px 60px rgba(0,0,0,.35), inset 0 0 0 1px rgba(255,255,255,.08);
}

.screen {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 1.85rem;
}

/* Sections */

main { max-width: 68rem; margin: 0 auto; padding: 0 1.5rem; }

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin: -2.5rem 0 0;
  position: relative;
}

.card {
  padding: 1.6rem;
  border: 1px solid var(--rule);
  border-radius: 1.1rem;
  background: var(--card);
  box-shadow: 0 10px 30px rgba(10, 40, 35, .06);
}

.card h2 { margin: 1rem 0 .4rem; font-size: 1.15rem; }
.card p { margin: 0; color: var(--muted); }

.icon {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: .8rem;
  background: var(--brand-tint);
  color: var(--brand-text);
}

.icon svg {
  width: 1.4rem;
  height: 1.4rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.section-title { margin: 0 0 2rem; font-size: 1.9rem; text-align: center; }

.steps { padding: 5.5rem 0 4.5rem; }

.steps ol {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li { text-align: center; }
.steps h3 { margin: .9rem 0 .35rem; font-size: 1.1rem; }
.steps p { margin: 0 auto; max-width: 18rem; color: var(--muted); }

.num {
  display: inline-grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
}

.privacy {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2.5rem;
  align-items: center;
  margin: 0 0 5rem;
  padding: 2.75rem;
  border-radius: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--rule);
}

.privacy-mark {
  display: grid;
  place-items: center;
  width: 7rem;
  height: 7rem;
  border-radius: 1.6rem;
  background: var(--brand);
  color: #fff;
}

.privacy-mark svg { width: 4rem; height: 4rem; }
.privacy h2 { margin: 0 0 .75rem; font-size: 1.6rem; }
.privacy ul { margin: 0 0 1.1rem; padding-left: 1.2rem; }
.privacy li { margin: .35rem 0; }
.privacy a { color: var(--brand-text); font-weight: 600; text-decoration: none; }

.footer { border-top: 1px solid var(--rule); }

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 68rem;
  margin: 0 auto;
  padding: 2rem 1.5rem 2.5rem;
}

.footer .brand-mark { background: var(--brand); color: #fff; }
.footer nav { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; font-size: .95rem; }
.footer nav a { color: var(--muted); text-decoration: none; }
.footer nav a:hover { color: var(--ink); }

@media (max-width: 820px) {
  .hero-inner { grid-template-columns: 1fr; padding: 6.5rem 1.25rem 4.5rem; gap: 3rem; }
  .features, .steps ol { grid-template-columns: 1fr; }
  .features { margin-top: -2rem; }
  .privacy { grid-template-columns: 1fr; padding: 2rem 1.5rem; gap: 1.5rem; }
  .privacy-mark { width: 4.5rem; height: 4.5rem; border-radius: 1.1rem; }
  .privacy-mark svg { width: 2.6rem; height: 2.6rem; }
  main { padding: 0 1rem; }
  .nav { padding: 1rem 1.25rem; }
}