/* ── Reset ───────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
}

/* ── Tokens ──────────────────────────────────────────── */
:root {
  --bg:   #F5F5F5;
  --text: #080C10;
}

/* ── Base ────────────────────────────────────────────── */
html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', system-ui, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  padding: clamp(24px, 6vw, 64px);
}

/* ── Nav ─────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: clamp(20px, 3vw, 32px);
  left: clamp(24px, 4vw, 48px);
  z-index: 100;
}

.nav-logo {
  font-family: 'Bricolage Grotesque', system-ui, sans-serif;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text);
  text-decoration: none;
  /* WCAG 2.5.8 – minimum 24×24px touch target */
  display: inline-block;
  padding: 4px 2px;
}

.nav-copyright {
  font-size: 0.45em;
  vertical-align: super;
  margin-right: 0.05em;
}

.nav-logo:focus-visible {
  outline: none;
}

/* ── Headline ────────────────────────────────────────── */
main {
  text-align: center;
  max-width: 720px;
  width: 100%;
}

.headline-wrap {
  position: relative;
}

h1 {
  font-family: 'Bricolage Grotesque', system-ui, sans-serif;
  font-weight: 800;
  font-size: clamp(2.4rem, 8vw, 6.5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text);
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 480px) {
  h1 { font-size: clamp(2rem, 10vw, 2.8rem); }
}