:root {
  --bg: #F5F5F7;
  --surface: #FFFFFF;
  --line: rgba(0, 0, 0, 0.08);
  --accent: #111111;
  --text: #111111;
  --muted: #555555;
  --max: 66rem;
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-t: env(safe-area-inset-top, 0px);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  min-height: 100%;
  font-family: "Figtree", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
.wrap { width: min(100% - 2rem, var(--max)); margin-inline: auto; }

.nav {
  position: sticky; top: 0; z-index: 20;
  background: rgba(245, 245, 247, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: calc(0.9rem + var(--safe-t)) 0 0.9rem;
}
.brand {
  font-family: "Source Serif 4", serif;
  font-weight: 700; font-size: 1.1rem;
}
.nav__links { display: flex; gap: 1.25rem; list-style: none; font-size: 0.88rem; font-weight: 500; }
.nav__links a { min-height: 44px; display: inline-flex; align-items: center; color: var(--muted); }
.nav__links a:hover { color: var(--text); }

.hero { padding: 4rem 0 3.5rem; }
.hero h1 {
  font-family: "Source Serif 4", serif;
  font-weight: 700;
  font-size: clamp(2rem, 6vw, 3.25rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  max-width: 16ch;
}
.hero__lead { font-size: 1.1rem; color: var(--muted); max-width: 34rem; margin-bottom: 2rem; }

.kicker {
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 0.6rem;
}
.sec-title {
  font-family: "Source Serif 4", serif;
  font-weight: 700; font-size: clamp(1.4rem, 3vw, 2rem);
  margin-bottom: 0.65rem;
}
section { padding: 3.5rem 0; }

.use-cases { border-block: 1px solid var(--line); }
.use-grid { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { .use-grid { grid-template-columns: 1fr 1fr; } }
.use-card {
  padding: 2rem 1.75rem; background: var(--surface);
  border: 1px solid var(--line); border-radius: 0.25rem;
}
.use-card h3 {
  font-family: "Source Serif 4", serif; font-size: 1.25rem; margin-bottom: 0.5rem;
}
.use-card p { color: var(--muted); font-size: 0.95rem; margin-bottom: 1rem; }
.use-card a { font-weight: 600; font-size: 0.9rem; text-decoration: underline; text-underline-offset: 3px; }

.lead-magnet {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 0.25rem; padding: 2.5rem 2rem;
}
.lead-magnet h2 {
  font-family: "Source Serif 4", serif; font-size: 1.5rem; margin-bottom: 0.5rem;
}
.lead-magnet p { color: var(--muted); margin-bottom: 1.5rem; font-size: 0.95rem; }
.form-grid { display: grid; gap: 1rem; }
.form-grid label { display: block; font-size: 0.85rem; font-weight: 500; margin-bottom: 0.35rem; }
.form-grid input {
  width: 100%; min-height: 44px; padding: 0.65rem 0.85rem;
  border: 1px solid var(--line); border-radius: 0.2rem;
  font-family: inherit; font-size: 1rem; background: var(--bg);
}
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 44px; padding: 0.75rem 1.75rem;
  background: var(--accent); color: #fff; border: none;
  font-family: inherit; font-weight: 600; font-size: 0.95rem;
  border-radius: 0.2rem; cursor: pointer; margin-top: 0.5rem;
}
.btn:hover { background: #333; }
.wp-link { display: inline-block; margin-top: 1rem; font-size: 0.88rem; color: var(--muted); }
.wp-link a { text-decoration: underline; text-underline-offset: 3px; }

.easter-egg {
  text-align: center; padding: 2rem 0; font-size: 0.78rem; color: #aaa;
}
.easter-egg a { color: #999; text-decoration: underline; text-underline-offset: 2px; }

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0 calc(2rem + var(--safe-b)); text-align: center;
}
.eco-footer__links { font-size: 0.85rem; margin-bottom: 1rem; }
.eco-footer__links a { font-weight: 500; text-decoration: underline; text-underline-offset: 3px; }
.site-footer__copy { font-size: 0.78rem; color: var(--muted); }

.fade-in { opacity: 0; transform: translateY(16px); transition: opacity 0.5s ease, transform 0.5s ease; }
.fade-in.is-visible { opacity: 1; transform: translateY(0); }