:root {
  color-scheme: light;
  --paper: #f6f2e9;
  --ink: #171614;
  --muted: #666159;
  --line: #dcd5c9;
  --card: rgba(255, 255, 255, 0.72);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  line-height: 1.8;
}

a { color: inherit; }

.shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 650;
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 10px;
}

nav { display: flex; gap: 24px; }
nav a { color: var(--muted); font-size: 14px; text-decoration: none; }
nav a:hover { color: var(--ink); }

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 72px;
  min-height: 690px;
  padding: 72px 0;
}

.eyebrow {
  margin: 0 0 16px;
  color: #8b7550;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1, h2 {
  margin: 0;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-weight: 600;
  line-height: 1.35;
}

h1 { font-size: clamp(42px, 5.5vw, 76px); letter-spacing: 0.02em; }
h2 { font-size: clamp(30px, 4vw, 48px); }

.lead {
  max-width: 590px;
  margin: 28px 0 34px;
  color: var(--muted);
  font-size: 18px;
}

.coming-soon {
  display: inline-block;
  padding: 13px 24px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 650;
}

.hero-shot {
  width: min(100%, 430px);
  justify-self: center;
  border-radius: 34px;
  box-shadow: 0 26px 70px rgba(31, 26, 18, 0.14);
}

section { padding: 96px 0; }

.section-heading { margin-bottom: 48px; }
.section-heading p { margin: 14px 0 0; color: var(--muted); }

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature {
  padding: 30px;
  background: var(--card);
  border: 1px solid rgba(220, 213, 201, 0.8);
  border-radius: 24px;
}

.feature strong {
  display: block;
  margin-bottom: 10px;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-size: 24px;
}

.feature p { margin: 0; color: var(--muted); }

.screenshots {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.screenshots img {
  display: block;
  width: 100%;
  border-radius: 26px;
  box-shadow: 0 18px 48px rgba(31, 26, 18, 0.12);
}

.page {
  max-width: 760px;
  padding: 80px 0 120px;
}

.page h1 { margin-bottom: 36px; font-size: clamp(38px, 6vw, 62px); }
.page h2 { margin: 48px 0 14px; font-size: 27px; }
.page p, .page li { color: #46413b; }
.page ul { padding-left: 1.3em; }

.contact {
  display: inline-block;
  margin-top: 18px;
  padding: 12px 20px;
  background: var(--ink);
  color: white;
  border-radius: 999px;
  text-decoration: none;
}

details {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

summary { cursor: pointer; font-weight: 650; }
details p { margin: 10px 0 0; }

footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 40px 0 56px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.footer-links { display: flex; gap: 18px; }

@media (max-width: 760px) {
  header { align-items: flex-start; padding: 18px 0; }
  nav { gap: 12px; }
  .hero { grid-template-columns: 1fr; gap: 50px; min-height: auto; padding: 76px 0; }
  .hero-shot { width: min(88%, 410px); }
  .features { grid-template-columns: 1fr; }
  .screenshots { gap: 10px; }
  .screenshots img { border-radius: 14px; }
  footer { flex-direction: column; }
}