/* ─────────── design tokens ─────────── */
:root {
  --bg: #FBFAF7;
  --surface: #FFFFFF;
  --surface-2: #F4EFE6;
  --ink: #1A1A1A;
  --ink-2: #4A4A4A;
  --muted: #6B6B6B;
  --border: #E6E1D6;
  --border-strong: #C9C2B0;

  --brand: #0E7C6B;
  --brand-ink: #064038;
  --brand-soft: #E0F0EC;

  --cta: #E85D4C;
  --cta-hover: #D14535;

  --australia: #B85450;
  --china: #0E7C6B;

  --shadow-sm: 0 1px 2px rgba(20,20,20,.04), 0 1px 1px rgba(20,20,20,.03);
  --shadow-md: 0 4px 12px rgba(20,20,20,.06), 0 2px 4px rgba(20,20,20,.04);
  --shadow-lg: 0 12px 32px rgba(20,20,20,.08), 0 4px 12px rgba(20,20,20,.05);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  --font-display: "Inter", "SF Pro Display", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;

  --maxw: 1180px;
}

/* ─────────── reset ─────────── */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
img { max-width: 100%; display: block; }
a { color: inherit; }
button { font: inherit; cursor: pointer; }

/* ─────────── body ─────────── */
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.55;
  font-size: 17px;
  text-wrap: pretty;
}

/* ─────────── nav ─────────── */
nav.topnav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251,250,247,.85);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -.01em;
  font-size: 18px;
  color: var(--ink);
  text-decoration: none;
}
.logo-mark {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  object-fit: contain;
}
.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav-links a {
  color: var(--ink-2);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
}
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  background: var(--ink);
  color: white !important;
  padding: 9px 16px;
  border-radius: 999px;
  font-weight: 600;
}
.nav-cta:hover { background: var(--brand-ink); }

@media (max-width: 720px) {
  .nav-links a:not(.nav-cta) { display: none; }
}

/* ─────────── container ─────────── */
.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ─────────── sub-page layout ─────────── */
.page {
  padding: 56px 0 80px;
}
h1 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.6vw, 40px);
  line-height: 1.15;
  letter-spacing: -.02em;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--brand-ink);
}
.last-updated {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 36px;
}
h2 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  margin: 36px 0 12px;
  color: var(--ink);
  letter-spacing: -.01em;
}
p, li { color: var(--ink-2); }
ul { padding-left: 22px; }
li { margin-bottom: 8px; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─────────── back link ─────────── */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 48px;
  color: var(--brand);
  font-weight: 600;
  text-decoration: none;
  font-size: 15px;
}
.back-link:hover { text-decoration: underline; }

/* ─────────── disclaimer box (sub-page only) ─────────── */
.disclaimer-box {
  background: #FFF8F6;
  border: 2px solid var(--cta);
  border-radius: var(--radius-lg);
  padding: 28px 30px;
  margin: 32px 0;
}
.disclaimer-box p { color: var(--ink); font-weight: 500; }

/* ─────────── footer ─────────── */
footer {
  padding: 40px 0;
  color: var(--muted);
  font-size: 13.5px;
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  justify-content: space-between;
  align-items: center;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}
.footer-links a {
  color: var(--muted);
  text-decoration: none;
}
.footer-links a:hover { color: var(--ink); }