:root {
  --green: #0B6B4D;
  --green-deep: #074A36;
  --green-tint: #DFEEE7;
  --green-paper: #F0F6F2;
  --paper: #FBF8F2;
  --paper-2: #F4EFE3;
  --ink: #14201B;
  --ink-2: #3E4C46;
  --ink-3: #6B7873;
  --ink-4: #9AA5A0;
  --hair: rgba(20,32,27,0.10);
  --hair-strong: rgba(20,32,27,0.18);
  --amber-soft: #FBE9C4;
  --sans: 'Bricolage Grotesque', system-ui, sans-serif;
  --serif: 'Instrument Serif', Georgia, serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "ss02";
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(20,32,27,0.055) 1px, transparent 0);
  background-size: 20px 20px;
  pointer-events: none;
  z-index: 0;
}
body > * { position: relative; z-index: 1; }
.container { max-width: 1160px; margin: 0 auto; padding: 0 40px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 600 11px/1 var(--sans);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--green);
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 1.5px;
  background: var(--green);
}
.serif-em { font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: -0.01em; color: var(--green); }
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251,248,242,0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--hair);
  padding: 0 40px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo, .footer-logo {
  display: inline-flex;
  align-items: baseline;
  gap: 0;
  font: 800 0/1 var(--sans);
  letter-spacing: -0.06em;
  color: var(--ink);
  text-decoration: none;
  font-size: 28px;
}
.footer-logo { font-size: 22px; color: var(--ink-3); }
.nav-logo .glyph, .footer-logo .glyph { font-size: 1em; line-height: 1; }
.nav-logo .o, .footer-logo .o {
  display: inline-block;
  position: relative;
  width: 0.78em;
  height: 0.78em;
  border-radius: 50%;
  background: currentColor;
  margin: 0 0.005em;
  vertical-align: -0.04em;
}
.nav-logo .o::after, .footer-logo .o::after {
  content: "";
  position: absolute;
  width: 0.32em;
  height: 0.32em;
  background: var(--paper);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a { text-decoration: none; color: var(--ink-3); font-size: 14px; font-weight: 500; transition: color 0.18s; }
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  background: var(--green);
  color: #fff;
  font: 600 14px/1 var(--sans);
  padding: 10px 22px;
  border-radius: 999px;
  text-decoration: none;
  transition: background 0.18s, transform 0.12s;
}
.nav-cta:hover { background: var(--green-deep); transform: translateY(-1px); }
.hamburger { display: none; }
.mobile-menu-cta-wrap { display: none; }
.hero { padding: 88px 0 64px; text-align: center; }
.hero h1 {
  font: 800 clamp(40px, 5.5vw, 66px)/1 var(--sans);
  letter-spacing: -0.045em;
  max-width: 840px;
  margin: 0 auto 20px;
}
.hero p {
  color: var(--ink-2);
  font: 400 19px/1.55 var(--sans);
  max-width: 720px;
  margin: 0 auto;
}
.hero-actions { display: flex; gap: 12px; justify-content: center; margin-top: 30px; flex-wrap: wrap; }
.btn-primary, .btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: 600 15px/1 var(--sans);
  padding: 15px 26px;
  border-radius: 999px;
  text-decoration: none;
  transition: background 0.18s, border-color 0.18s, color 0.18s, transform 0.12s;
}
.btn-primary { background: var(--green); color: #fff; box-shadow: 0 1px 2px rgba(11,107,77,0.12), 0 4px 12px rgba(11,107,77,0.18); }
.btn-primary:hover { background: var(--green-deep); transform: translateY(-1px); }
.btn-ghost { color: var(--ink-2); border: 1px solid var(--hair-strong); background: rgba(255,255,255,0.35); }
.btn-ghost:hover { color: var(--ink); border-color: var(--ink-3); transform: translateY(-1px); }
.section { padding: 72px 0; border-top: 1px solid var(--hair); }
.section-head { max-width: 760px; margin-bottom: 32px; }
.section h2 {
  font: 800 clamp(30px, 4vw, 48px)/1.05 var(--sans);
  letter-spacing: -0.04em;
  margin-top: 16px;
}
.section-head p { color: var(--ink-2); font-size: 18px; margin-top: 14px; }
.content-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.card {
  background: #fff;
  border: 1px solid var(--hair);
  border-radius: 18px;
  padding: 28px;
}
.card h3 { font: 700 19px/1.2 var(--sans); letter-spacing: -0.02em; margin-bottom: 12px; }
.card p, .card li { color: var(--ink-3); font: 400 15px/1.65 var(--sans); }
.card ul, .card ol { padding-left: 20px; margin-top: 8px; }
.card li { margin-bottom: 7px; }
.wide { grid-column: 1 / -1; }
.example {
  background: var(--green-paper);
  border: 1px solid rgba(11,107,77,0.16);
  border-radius: 16px;
  padding: 24px;
  font: 500 14px/1.65 var(--mono);
  color: var(--green-deep);
  white-space: pre-wrap;
}
.notice {
  background: var(--amber-soft);
  border: 1px solid rgba(154,117,32,0.18);
  border-radius: 14px;
  padding: 16px 18px;
  color: #7A5F14;
  font: 500 14px/1.55 var(--sans);
}
.related-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.related-links a {
  display: inline-block;
  padding: 9px 16px;
  background: #fff;
  border: 1px solid var(--hair);
  border-radius: 999px;
  font: 500 13px/1 var(--sans);
  color: var(--ink-2);
  text-decoration: none;
}
.related-links a:hover { border-color: var(--green); color: var(--green); }
.cta-section {
  background: #fff;
  border: 1px solid var(--hair);
  border-radius: 32px;
  padding: 58px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 20%;
  right: 20%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
}
.cta-section h2 {
  font: 800 clamp(34px, 4vw, 56px)/1 var(--sans);
  letter-spacing: -0.04em;
  margin-bottom: 16px;
}
.cta-section p { color: var(--ink-2); font-size: 18px; max-width: 620px; margin: 0 auto 28px; }
.faq-list { display: grid; gap: 14px; max-width: 860px; }
.faq-list details {
  background: #fff;
  border: 1px solid var(--hair);
  border-radius: 16px;
  padding: 18px 22px;
}
.faq-list summary { cursor: pointer; font: 700 16px/1.35 var(--sans); color: var(--ink); }
.faq-list p { color: var(--ink-3); margin-top: 10px; }
footer {
  border-top: 1px solid var(--hair);
  padding: 32px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-copy { font: 400 13px/1 var(--sans); color: var(--ink-4); }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font: 400 13px/1 var(--sans); color: var(--ink-4); text-decoration: none; }
.footer-links a:hover { color: var(--ink-2); }
.fade-up { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visible { opacity: 1; transform: none; }
@media (max-width: 960px) {
  .container { padding: 0 24px; }
  nav { padding: 0 24px; }
  .hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 201;
  }
  .hamburger span { display: block; width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform 0.25s ease, opacity 0.2s ease; }
  .hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .hamburger.active span:nth-child(2) { opacity: 0; }
  .hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--hair);
    box-shadow: 0 8px 24px rgba(20,32,27,0.08);
    padding: 8px 0;
    z-index: 200;
  }
  .nav-links.open li { list-style: none; }
  .nav-links.open a { display: block; padding: 14px 28px; font-size: 15px; color: var(--ink-2); text-decoration: none; }
  .mobile-menu-cta { display: block; margin: 8px 20px 12px; padding: 13px 24px; background: var(--green); color: #fff; text-align: center; font: 600 15px/1 var(--sans); border-radius: 999px; text-decoration: none; }
  .mobile-menu-cta-wrap { display: none; }
  .nav-links.open .mobile-menu-cta-wrap { display: block; }
  .nav-cta { display: none; }
  .hero { padding: 64px 0 48px; }
  .content-grid { grid-template-columns: 1fr; }
  .wide { grid-column: auto; }
  .cta-section { padding: 40px 24px; border-radius: 24px; }
  footer { flex-direction: column; gap: 16px; text-align: center; padding: 24px; }
  .footer-links { flex-wrap: wrap; justify-content: center; gap: 16px; }
}