:root {
  color-scheme: light;
  --paper: #f2eee4;
  --ink: #102638;
  --accent: #ef5b2a;
  --line: rgba(16, 38, 56, 0.28);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    linear-gradient(90deg, transparent 49.8%, rgba(16, 38, 56, 0.05) 50%, transparent 50.2%),
    var(--paper);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}

main { width: min(1080px, calc(100% - 40px)); margin: 0 auto; }

.masthead {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 24px 0 18px;
  border-bottom: 2px solid var(--ink);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
}

.masthead p { margin: 0; font-weight: 800; letter-spacing: 0.08em; }
.masthead span { font-size: 0.75rem; }

.hero { padding: clamp(72px, 12vw, 150px) 0 clamp(60px, 10vw, 120px); }
.issue { color: var(--accent); font: 700 0.8rem/1 ui-monospace, monospace; letter-spacing: 0.12em; }
.hero h1 { margin: 22px 0; font-size: clamp(3rem, 8.8vw, 7.7rem); line-height: 0.95; letter-spacing: -0.065em; }
.hero > p:last-child { width: min(620px, 100%); margin-left: auto; font-size: 1.08rem; line-height: 1.9; }

.tool-list { border-top: 2px solid var(--ink); padding-bottom: 80px; }
.tool-list h2 { margin: 0; padding: 14px 0; font: 800 0.78rem/1 ui-monospace, monospace; letter-spacing: 0.12em; }
.tool-row {
  display: grid;
  grid-template-columns: 70px 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 30px 0;
  color: inherit;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}
.tool-row:hover strong { color: var(--accent); }
.number { font: 700 0.85rem/1 ui-monospace, monospace; }
.tool-row strong { display: block; font-size: clamp(1.3rem, 3vw, 2.2rem); transition: color 160ms ease; }
.tool-row small { display: block; margin-top: 8px; line-height: 1.6; }
.arrow { font-size: 2.4rem; }
.site-footer { display: flex; justify-content: space-between; padding: 28px 0 42px; border-top: 2px solid var(--ink); font: 700 .72rem/1 ui-monospace, monospace; letter-spacing: .08em; }
.privacy-page { max-width: 760px; padding: 70px 0 100px; }
.privacy-page h1 { margin: 0 0 38px; font-size: clamp(2.6rem, 7vw, 5.2rem); line-height: .98; letter-spacing: -.05em; }
.privacy-page h2 { margin: 42px 0 12px; font-size: 1.25rem; }
.privacy-page p, .privacy-page li { line-height: 1.85; }
.privacy-page button { border: 2px solid var(--ink); border-radius: 0; padding: 12px 16px; color: var(--paper); background: var(--ink); font: inherit; font-weight: 700; cursor: pointer; }
.privacy-status { min-height: 1.5em; color: var(--accent); font-weight: 700; }

@media (max-width: 620px) {
  main { width: min(100% - 28px, 1080px); }
  .masthead span { display: none; }
  .hero > p:last-child { margin-left: 0; }
  .tool-row { grid-template-columns: 42px 1fr; gap: 12px; }
  .arrow { display: none; }
}