:root {
  --bg: #f6f6f3; --surface: #fff; --surface-2: #efefea; --text: #1a1c1e; --muted: #5e6368; --border: #e2e2dc;
  --accent: #1f6f4a; --accent-hover: #185a3c; --accent-soft: #e3f1e9; --on-accent: #fff; --warn: #9a5200; --danger: #b3261e;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Inter, Roboto, "Helvetica Neue", sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111213; --surface: #1a1c1e; --surface-2: #222528; --text: #ececea; --muted: #a2a7ac; --border: #2b2e31;
    --accent: #4cc38a; --accent-hover: #63d19b; --accent-soft: #173527; --on-accent: #0b1f15; --warn: #f0a44b; --danger: #f28b82; color-scheme: dark; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.55 var(--font); }
a { color: var(--accent); }
:focus-visible { outline: 2px solid #2f7fe0; outline-offset: 2px; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
header.nav { display: flex; align-items: center; justify-content: space-between; padding: 18px 24px; max-width: 1080px; margin: 0 auto; }
.brand { display: flex; gap: 9px; align-items: center; font-weight: 650; font-size: 17px; color: var(--text); text-decoration: none; }
nav a { color: var(--muted); text-decoration: none; margin-left: 22px; font-size: 15px; }
nav a:hover { color: var(--text); }
.btn { display: inline-flex; align-items: center; min-height: 44px; padding: 0 20px; border-radius: 8px; font-weight: 600; font-size: 16px; text-decoration: none; border: 1px solid var(--border); color: var(--text); background: var(--surface); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn.primary:hover { background: var(--accent-hover); }
.hero { padding: 72px 0 40px; max-width: 760px; }
.hero h1 { font-size: clamp(36px, 6vw, 58px); line-height: 1.05; letter-spacing: -.025em; margin: 0 0 20px; }
.hero p { font-size: 20px; color: var(--muted); margin: 0 0 28px; max-width: 640px; }
.cta { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.cta small { color: var(--muted); font-size: 14px; margin-left: 6px; }
figure { margin: 0; }
.shot { border: 1px solid var(--border); border-radius: 12px; overflow: hidden; background: var(--surface); box-shadow: 0 1px 2px rgb(0 0 0 / .04), 0 20px 48px rgb(0 0 0 / .08); }
.shot img { display: block; width: 100%; height: auto; }
figcaption { color: var(--muted); font-size: 14px; margin-top: 10px; }
section { padding: 72px 0; }
section + section { border-top: 1px solid var(--border); }
h2 { font-size: clamp(26px, 3.5vw, 34px); letter-spacing: -.015em; line-height: 1.15; margin: 0 0 16px; }
.lede { color: var(--muted); font-size: 19px; max-width: 680px; margin: 0 0 36px; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.sources { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.sources li { display: flex; justify-content: space-between; gap: 16px; padding: 12px 16px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); font-size: 15px; }
.sources span { color: var(--muted); }
.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.steps li { counter-increment: s; }
.steps li::before { content: counter(s); display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-weight: 700; font-size: 15px; margin-bottom: 12px; }
.steps b, .features b { display: block; margin-bottom: 4px; }
.steps p, .features p { margin: 0; color: var(--muted); font-size: 15.5px; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px 40px; margin: 0; padding: 0; list-style: none; }
.privacy-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.privacy-list li { padding-left: 26px; position: relative; }
.privacy-list li::before { content: ""; position: absolute; left: 4px; top: 10px; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.limits li::before { background: var(--warn); }
details { border-top: 1px solid var(--border); padding: 16px 0; }
details:last-child { border-bottom: 1px solid var(--border); }
summary { cursor: pointer; font-weight: 600; }
details p { color: var(--muted); margin: 10px 0 0; }
pre { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 16px 18px; overflow-x: auto; font-size: 15px; line-height: 1.7; }
footer { border-top: 1px solid var(--border); padding: 28px 0 48px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer a { color: var(--muted); margin-right: 18px; }
.prose { max-width: 720px; padding: 48px 0 72px; }
.prose h1 { font-size: 38px; letter-spacing: -.02em; margin: 0 0 8px; }
.prose h2 { font-size: 22px; margin: 36px 0 10px; }
.prose p, .prose li { color: var(--muted); }
@media (max-width: 860px) {
  .two { grid-template-columns: 1fr; gap: 28px; }
  .steps { grid-template-columns: 1fr 1fr; }
  .features { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  header.nav { padding: 14px 16px; }
  nav a:not(.btn) { display: none; }
  .wrap { padding: 0 16px; }
  .hero { padding: 40px 0 28px; }
  .hero p { font-size: 18px; }
  section { padding: 52px 0; }
  .steps, .features { grid-template-columns: 1fr; }
}