/* Shared styles imported by all pages */
/* geology.net.nz — contemporary NZ professional palette */

:root {
  --brand-stone: #2C3E2D;      /* NZ native bush deep green */
  --brand-pounamu: #1B6B5A;    /* pounamu (greenstone) teal */
  --brand-pumice: #F4F0E8;     /* volcanic pumice off-white */
  --brand-schist: #5C6B5A;     /* Canterbury schist grey-green */
  --brand-gold: #C9A84C;       /* quartz gold accent */
  --brand-slate: #1E2B1F;      /* deep dark for headings */
  --brand-mist: #E8EDE6;       /* NZ morning mist light */
  --brand-ink: #1A2318;        /* near-black text */
  --brand-mid: #6B7B69;        /* mid tone for body text */
  --nav-height: 72px;
  --content-max: 1120px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --shadow-card: 0 2px 16px rgba(28,43,31,0.08), 0 1px 4px rgba(28,43,31,0.04);
  --shadow-hover: 0 8px 32px rgba(28,43,31,0.14), 0 2px 8px rgba(28,43,31,0.06);
  --transition: 0.22s cubic-bezier(0.4,0,0.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'DM Sans', 'Segoe UI', system-ui, sans-serif;
  color: var(--brand-ink);
  background: var(--brand-pumice);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Navigation ───────────────────────────────────── */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-height);
  background: rgba(28,43,31,0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(201,168,76,0.15);
  display: flex; align-items: center;
}
.nav-inner {
  max-width: var(--content-max);
  margin: 0 auto; padding: 0 2rem;
  width: 100%;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
}
.nav-logo-mark {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--brand-pounamu), var(--brand-gold));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 15px; color: #fff; letter-spacing: -0.5px;
}
.nav-logo-text {
  display: flex; flex-direction: column; line-height: 1.1;
}
.nav-logo-name {
  font-size: 15px; font-weight: 700; color: #fff; letter-spacing: -0.3px;
}
.nav-logo-domain {
  font-size: 11px; color: var(--brand-gold); font-weight: 400; letter-spacing: 0.5px;
}
.nav-links {
  display: flex; align-items: center; gap: 0.25rem;
  list-style: none;
}
.nav-links a {
  display: block; padding: 0.45rem 0.9rem;
  color: rgba(255,255,255,0.78);
  text-decoration: none; font-size: 14px; font-weight: 500;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  letter-spacing: 0.1px;
}
.nav-links a:hover, .nav-links a.active {
  color: #fff; background: rgba(255,255,255,0.08);
}
.nav-cta {
  background: var(--brand-pounamu) !important;
  color: #fff !important;
  border-radius: var(--radius-sm) !important;
  padding: 0.45rem 1.1rem !important;
}
.nav-cta:hover { background: var(--brand-stone) !important; }

/* ── Footer ───────────────────────────────────────── */
.site-footer {
  background: var(--brand-slate);
  color: rgba(255,255,255,0.65);
  padding: 3.5rem 2rem 2rem;
}
.footer-inner {
  max-width: var(--content-max); margin: 0 auto;
  display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 2.5rem;
}
.footer-brand p { font-size: 14px; line-height: 1.7; margin-top: 0.75rem; }
.footer-col h4 { color: var(--brand-gold); font-size: 12px; font-weight: 600; letter-spacing: 1.2px; text-transform: uppercase; margin-bottom: 1rem; }
.footer-col a { display: block; color: rgba(255,255,255,0.6); text-decoration: none; font-size: 14px; margin-bottom: 0.5rem; transition: color var(--transition); }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  max-width: var(--content-max); margin: 2.5rem auto 0;
  padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,0.08);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px;
}
.footer-bottom a { color: var(--brand-gold); text-decoration: none; }

/* ── Utility ─────────────────────────────────────── */
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.container { max-width: var(--content-max); margin: 0 auto; padding: 0 2rem; }
.section { padding: 5rem 0; }
.section-sm { padding: 3.5rem 0; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(27,107,90,0.1); color: var(--brand-pounamu);
  border: 1px solid rgba(27,107,90,0.2);
  padding: 0.3rem 0.8rem; border-radius: 100px;
  font-size: 12px; font-weight: 600; letter-spacing: 0.8px; text-transform: uppercase;
}
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 0.8rem 1.8rem; border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 600; text-decoration: none;
  transition: all var(--transition); cursor: pointer; border: none;
  letter-spacing: -0.1px;
}
.btn-primary { background: var(--brand-pounamu); color: #fff; }
.btn-primary:hover { background: var(--brand-stone); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(27,107,90,0.3); }
.btn-outline { background: transparent; color: var(--brand-pounamu); border: 1.5px solid var(--brand-pounamu); }
.btn-outline:hover { background: var(--brand-pounamu); color: #fff; }
.btn-ghost { background: rgba(255,255,255,0.12); color: #fff; border: 1.5px solid rgba(255,255,255,0.25); }
.btn-ghost:hover { background: rgba(255,255,255,0.2); }
.btn-gold { background: var(--brand-gold); color: var(--brand-slate); }
.btn-gold:hover { background: #b8963e; transform: translateY(-1px); }
.card {
  background: #fff; border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 2rem;
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.tag {
  display: inline-block; background: var(--brand-mist);
  color: var(--brand-schist); padding: 0.2rem 0.65rem;
  border-radius: var(--radius-sm); font-size: 12px; font-weight: 500;
  margin: 0.15rem; letter-spacing: 0.2px;
}
h1,h2,h3,h4 { line-height: 1.2; letter-spacing: -0.4px; color: var(--brand-slate); }
h1 { font-size: clamp(2rem,5vw,3.25rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem,3.5vw,2.25rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 700; }
h4 { font-size: 1rem; font-weight: 600; }
.lead { font-size: 1.15rem; line-height: 1.75; color: var(--brand-mid); }
.text-gold { color: var(--brand-gold); }
.text-pounamu { color: var(--brand-pounamu); }
.divider { width: 48px; height: 3px; background: var(--brand-gold); border-radius: 2px; margin: 1.25rem 0; }

/* ── Hamburger / mobile ──────────────────────────── */
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: #fff; margin: 4px 0; border-radius: 1px;
  transition: all var(--transition);
}
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed; top: var(--nav-height); left: 0; right: 0;
    background: var(--brand-slate);
    flex-direction: column; align-items: stretch;
    padding: 1rem; gap: 0.15rem;
    transform: translateY(-110%); opacity: 0;
    transition: transform var(--transition), opacity var(--transition);
    pointer-events: none;
  }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: all; }
  .nav-links a { padding: 0.75rem 1rem; font-size: 15px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
}
@media (max-width: 480px) {
  .footer-inner { grid-template-columns: 1fr; }
}