:root {
  --navy: #0b3558;
  --navy-2: #0f2a44;
  --teal: #128c86;
  --sea: #22b3a6;
  --seafoam: #2fd1a6;
  --harbor: #1c5d99;
  --bg: #f7faf9;
  --surface: #ffffff;
  --text: #10202e;
  --text-2: #4a5b69;
  --text-3: #7d8c97;
  --line: rgba(11, 53, 88, 0.1);
  --radius: 18px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI Variable Text", "Segoe UI", system-ui, sans-serif;
  --display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI Variable Display", "Segoe UI", system-ui, sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c1620;
    --surface: #12212e;
    --text: #eef4f6;
    --text-2: #a9b8c2;
    --text-3: #75868f;
    --line: rgba(255, 255, 255, 0.09);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 17px/1.6 var(--font);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--teal); }
@media (prefers-color-scheme: dark) { a { color: var(--seafoam); } }
img { max-width: 100%; display: block; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ---------- nav ---------- */
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; color: inherit; text-decoration: none; font: 700 20px var(--display); letter-spacing: -0.02em; }
.brand img { width: 40px; height: 40px; }
.nav-links { display: flex; gap: 22px; font-size: 15px; }
.nav-links a { color: var(--text-2); text-decoration: none; }
.nav-links a:hover { color: var(--text); }

/* ---------- hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(47, 209, 166, 0.35), transparent 60%),
    linear-gradient(140deg, #22b3a6 0%, #147a8c 45%, var(--navy) 100%);
  color: #fff;
  padding: 0 0 96px;
}
.hero .nav a, .hero .brand { color: #fff; }
.hero .nav-links a { color: rgba(255, 255, 255, 0.8); }
.hero .nav-links a:hover { color: #fff; }
.hero::after {
  /* gentle swell along the bottom edge */
  content: ""; position: absolute; left: -5%; right: -5%; bottom: -1px; height: 90px;
  background: var(--bg);
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; padding-top: 48px; position: relative; z-index: 1; }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; padding: 5px 12px; border-radius: 999px; background: rgba(255, 255, 255, 0.14); }
h1 { font: 800 clamp(40px, 6vw, 64px)/1.03 var(--display); letter-spacing: -0.035em; margin: 18px 0 18px; }
.lede { font-size: 20px; color: rgba(255, 255, 255, 0.88); max-width: 520px; margin: 0 0 30px; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; height: 50px; padding: 0 24px;
  border-radius: 14px; font: 600 16px var(--font); text-decoration: none; cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-light { background: #fff; color: var(--navy) !important; box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.45); }
.btn-ghost { color: #fff !important; border: 1.5px solid rgba(255, 255, 255, 0.45); }
.small-note { font-size: 13px; color: rgba(255, 255, 255, 0.7); margin-top: 14px; }
.shot {
  border-radius: 16px; overflow: hidden;
  box-shadow: 0 40px 80px -30px rgba(3, 20, 36, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.15);
  transform: perspective(1600px) rotateY(-8deg) rotateX(3deg);
}

/* ---------- sections ---------- */
section { padding: 72px 0; }
h2 { font: 750 clamp(28px, 4vw, 40px)/1.15 var(--display); letter-spacing: -0.025em; margin: 0 0 12px; }
.section-lede { color: var(--text-2); font-size: 19px; max-width: 620px; margin: 0 0 40px; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.card h3 { font: 650 18px var(--display); margin: 14px 0 6px; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--text-2); font-size: 15.5px; }
.icon {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--sea), var(--harbor)); color: #fff;
}
.icon svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; counter-reset: step; }
.step { position: relative; padding: 26px 26px 26px 26px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); }
.step::before {
  counter-increment: step; content: counter(step);
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%;
  background: var(--navy); color: #fff; font: 700 15px var(--display); margin-bottom: 14px;
}
@media (prefers-color-scheme: dark) { .step::before { background: var(--teal); } }
.step h3 { margin: 0 0 6px; font: 650 18px var(--display); }
.step p { margin: 0; color: var(--text-2); font-size: 15.5px; }

.tree {
  font: 14px/1.7 ui-monospace, "SF Mono", Menlo, monospace; background: var(--navy-2); color: #cfe7ea;
  border-radius: var(--radius); padding: 24px 28px; overflow-x: auto; margin: 0;
}
.tree b { color: var(--seafoam); font-weight: 600; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }

.privacy-band { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.checks li { display: flex; gap: 12px; color: var(--text-2); }
.checks li::before { content: "✓"; flex: none; width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; background: rgba(18, 140, 134, 0.14); color: var(--teal); font-weight: 700; font-size: 13px; margin-top: 2px; }

/* ---------- downloads & FAQ ---------- */
.downloads { display: grid; grid-template-columns: repeat(2, minmax(0, 340px)); gap: 16px; }
.dl-card {
  display: flex; align-items: center; gap: 16px; padding: 20px 22px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line); color: var(--text) !important; text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}
.dl-card:hover { transform: translateY(-2px); box-shadow: 0 16px 30px -18px rgba(11, 53, 88, 0.4); border-color: var(--teal); }
.dl-card svg { width: 30px; height: 30px; flex: none; color: var(--navy); }
@media (prefers-color-scheme: dark) { .dl-card svg { color: var(--seafoam); } }
.dl-card span { display: flex; flex-direction: column; }
.dl-card strong { font: 650 17px var(--display); }
.dl-card small { color: var(--text-3); font-size: 13.5px; }
.dl-card.primary { background: linear-gradient(140deg, #22b3a6, #147a8c 55%, var(--navy)); color: #fff !important; border-color: transparent; }
.dl-card.primary svg, .dl-card.primary small { color: rgba(255, 255, 255, 0.85); }
.dl-note { color: var(--text-2); font-size: 15px; max-width: 700px; margin-top: 22px; }
.faq { display: grid; gap: 10px; max-width: 820px; }
.faq details { background: var(--bg); border: 1px solid var(--line); border-radius: 14px; padding: 4px 20px; }
.faq summary { cursor: pointer; font: 600 16.5px var(--display); padding: 14px 0; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--teal); font-size: 22px; line-height: 1; transition: transform 0.2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 0 0 16px; color: var(--text-2); font-size: 15.5px; }

/* ---------- help ---------- */
.help-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 16px 0; }
.help-grid .card h3 { margin-top: 0; }
.help-grid ol { margin: 8px 0 0; padding-left: 20px; color: var(--text-2); font-size: 15.5px; }
.help-grid li { margin: 4px 0; }
.kbd { font: 13px ui-monospace, "SF Mono", Menlo, monospace; background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px; }

/* ---------- footer ---------- */
footer { padding: 40px 0 56px; color: var(--text-3); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
footer a { color: var(--text-2); text-decoration: none; margin-left: 18px; }
footer a:hover { color: var(--text); }

/* ---------- legal pages ---------- */
.legal-head { background: linear-gradient(140deg, #22b3a6 0%, #147a8c 45%, var(--navy) 100%); color: #fff; padding-bottom: 48px; }
.legal-head .brand, .legal-head .nav-links a { color: #fff; }
.legal-head h1 { font-size: clamp(34px, 5vw, 48px); margin: 28px 0 6px; }
.legal-head p { margin: 0; color: rgba(255, 255, 255, 0.8); }
.legal { max-width: 760px; padding: 48px 24px 24px; margin: 0 auto; }
.legal h2 { font-size: 24px; margin: 40px 0 10px; }
.legal h3 { font: 650 18px var(--display); margin: 24px 0 6px; }
.legal p, .legal li { color: var(--text-2); }
.legal strong { color: var(--text); }
.legal .callout { background: var(--surface); border: 1px solid var(--line); border-left: 4px solid var(--teal); border-radius: 12px; padding: 16px 20px; margin: 20px 0; }
.legal table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 12px 0; }
.legal th, .legal td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; color: var(--text-2); }
.legal th { color: var(--text); font-weight: 600; }

@media (max-width: 860px) {
  .hero-grid, .split, .downloads, .help-grid { grid-template-columns: 1fr; }
  .features, .steps { grid-template-columns: 1fr; }
  .shot { transform: none; }
  .nav-links { gap: 14px; font-size: 14px; }
  .legal table { display: block; overflow-x: auto; }
}