:root {
  --ink: #0b0b0d;
  --graphite: #5d5d65;
  --hairline: #e3e3e0;
  --ground: #f6f6f4;
  --surface: #ffffff;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--ground); color: var(--ink); font-family: var(--font); -webkit-font-smoothing: antialiased; line-height: 1.5; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }

.bar, main, .foot { max-width: 1120px; margin: 0 auto; padding-inline: clamp(16px, 4vw, 40px); }
.bar { display: flex; align-items: center; justify-content: space-between; padding-block: 22px; }
.brand img { height: 30px; width: auto; }
.bar-link { font-size: 15px; font-weight: 600; text-decoration: none; color: var(--graphite); }

.hero { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: clamp(32px, 6vw, 80px); align-items: center; padding-block: clamp(24px, 6vw, 72px); }
.eyebrow { margin: 0 0 14px; font-size: 13px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--graphite); }
h1 { margin: 0; font-size: clamp(38px, 5.6vw, 64px); line-height: 1.02; letter-spacing: -0.035em; font-weight: 700; text-wrap: balance; }
.lede { margin: 20px 0 0; max-width: 34em; font-size: clamp(17px, 1.6vw, 19px); color: var(--graphite); }
.cta { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; margin-top: 30px; }
.store { display: inline-flex; align-items: center; height: 54px; padding: 0 26px; border-radius: 999px; background: var(--ink); color: #fff; font-size: 16px; font-weight: 600; }
.secondary { font-size: 15px; font-weight: 600; color: var(--graphite); }

.hero-phone { justify-self: center; width: min(340px, 100%); padding: 10px; background: var(--ink); border-radius: 54px; box-shadow: 0 30px 60px -24px rgba(0, 0, 0, 0.4); }
.hero-phone img { border-radius: 45px; }

.features { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px 22px; padding-block: 40px 80px; border-top: 1px solid var(--hairline); }
.features img { border-radius: 22px; box-shadow: 0 0 0 1px var(--hairline); background: var(--surface); }
.features h2 { margin: 18px 0 6px; font-size: 19px; letter-spacing: -0.015em; }
.features p { margin: 0; color: var(--graphite); font-size: 15px; }

.foot { display: flex; flex-wrap: wrap; gap: 8px 22px; padding-block: 28px 44px; border-top: 1px solid var(--hairline); font-size: 14px; color: var(--graphite); }
.foot a { text-decoration: none; }

.doc { max-width: 720px; padding-block: 24px 64px; }
.doc h1 { font-size: clamp(32px, 5vw, 44px); }
.doc h2 { margin: 34px 0 8px; font-size: 20px; letter-spacing: -0.01em; }
.doc p, .doc li { color: #2f2f35; font-size: 16px; }
.doc .updated { color: var(--graphite); margin-top: 10px; }

@media (max-width: 860px) {
  .hero { grid-template-columns: minmax(0, 1fr); }
  .features { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 480px) {
  .features { grid-template-columns: minmax(0, 1fr); }
  .hero-phone { width: min(290px, 100%); }
}