:root {
  color-scheme: light;
  --ink: #152033;
  --muted: #5a6678;
  --line: #d9e0ea;
  --paper: #ffffff;
  --wash: #f3f6f9;
  --blue: #1264e8;
  --green: #08a66a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 22px;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 750;
  text-decoration: none;
}

.brand img {
  border-radius: 7px;
}

nav {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--muted);
  font-size: 14px;
}

nav a,
.site-footer a {
  text-decoration: none;
}

.hero {
  position: relative;
  min-height: 78vh;
  display: flex;
  align-items: flex-end;
  padding: 92px 24px 58px;
  background-image: url("assets/app-icon.png");
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background: rgba(4, 18, 42, 0.58);
}

.siteproof-hero {
  background-image: url("assets/siteproof-icon.png");
}

.siteproof-shade {
  background: rgba(17, 24, 39, 0.58);
}

.hero-content {
  position: relative;
  width: min(940px, 100%);
  margin: 0 auto;
  color: white;
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.78);
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 12px;
  font-size: clamp(46px, 9vw, 96px);
  line-height: 0.98;
}

.lede {
  max-width: 690px;
  margin-bottom: 0;
  font-size: clamp(21px, 3vw, 34px);
  line-height: 1.18;
}

.section {
  padding: 64px 24px;
}

.muted {
  background: var(--wash);
}

.section-grid {
  width: min(1080px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 1.05fr);
  gap: 44px;
  align-items: start;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.05;
}

.section p,
.document p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.58;
}

.feature-list {
  display: grid;
  gap: 12px;
}

.feature,
.notice {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.feature span {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--green);
  font-weight: 800;
}

.feature p,
.notice p {
  margin-bottom: 0;
}

.document {
  width: min(780px, calc(100% - 40px));
  margin: 0 auto;
  padding: 64px 0;
}

.document h1 {
  color: var(--ink);
  font-size: clamp(38px, 7vw, 64px);
}

.document h2 {
  margin-top: 32px;
  font-size: 24px;
}

.document a {
  color: var(--blue);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 18px;
  padding: 26px 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.site-footer span {
  color: var(--ink);
  font-weight: 750;
}

@media (max-width: 740px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .hero {
    min-height: 72vh;
    padding-top: 72px;
  }

  .section {
    padding: 46px 20px;
  }

  .section-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}