/* ══════════════════════════════════════
   CAIRNS-TOUR.COM.AU BRAND SYSTEM
   Matching the live site's aesthetic:
   dark navy · teal · clean sans-serif
   ══════════════════════════════════════ */
:root {
  --navy-deep:  #060d18;
  --navy:       #0b1628;
  --navy-mid:   #111f35;
  --navy-card:  #0f1c30;
  --teal:       #0bbcd6;
  --teal-dim:   #0891b2;
  --teal-pale:  #67e8f9;
  --teal-glow:  rgba(11,188,214,.18);
  --white:      #f8faff;
  --body-text:  #b8cee0;
  --muted:      #6a8aa4;
  --border:     rgba(11,188,214,.15);
  --border-sub: rgba(255,255,255,.06);
  --amber:      #f59e0b;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  background: var(--navy-deep);
  color: var(--white);
  font-family: 'DM Sans', sans-serif;
  font-weight: 300;
  overflow-x: hidden;
  line-height: 1.7;
}
a { color:var(--teal-pale); text-decoration:none; transition:color .25s; }
a:hover { color:var(--teal); }

/* ══ NAV (matching live site) ══ */
.site-nav {
  position: sticky; top:0; z-index:200;
  background: rgba(6,13,24,.95);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  padding: 0 2.5rem;
  display: flex; align-items:center; justify-content:space-between;
  height: 64px;
}
.nav-logo {
  font-family: 'DM Sans', sans-serif; font-weight:600;
  font-size:1.2rem; color:var(--white); letter-spacing:-.01em;
}
.nav-logo span { color:var(--teal); }
.nav-links { display:flex; gap:1.8rem; list-style:none; align-items:center; }
.nav-links a {
  color:var(--muted); font-size:.82rem; font-weight:400;
  letter-spacing:.04em; transition:color .25s;
}
.nav-links a:hover { color:var(--white); }
.nav-btn {
  padding:.5rem 1.3rem; background:var(--teal); color:var(--navy-deep) !important;
  border-radius:6px; font-size:.82rem !important; font-weight:600 !important;
  transition:all .25s !important;
}
.nav-btn:hover { background:var(--teal-pale) !important; transform:translateY(-1px); }

/* ══ BREADCRUMB ══ */
.breadcrumb {
  padding: .75rem 2.5rem;
  background: var(--navy); border-bottom:1px solid var(--border-sub);
  display: flex; align-items:center; gap:.5rem;
  font-size:.74rem; color:var(--muted);
}
.breadcrumb a { color:var(--muted); }
.breadcrumb a:hover { color:var(--teal-pale); }
.breadcrumb .sep { color:rgba(255,255,255,.15); }
.breadcrumb .current { color:var(--teal-pale); }

/* ══ PAGE HEADER ══ */
.page-header {
  background: linear-gradient(160deg, var(--navy) 0%, #0a1a2e 60%, var(--navy-deep) 100%);
  border-bottom: 1px solid var(--border);
  padding: 4rem 2.5rem 3rem;
  position: relative; overflow:hidden;
}
.page-header::before {
  content:''; position:absolute; top:-30%; right:0; width:55%; height:200%;
  background: radial-gradient(ellipse at center, rgba(11,188,214,.08) 0%, transparent 65%);
  pointer-events:none;
}
.ph-inner { max-width:860px; position:relative; z-index:1; }
.ph-label {
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.22rem .8rem; border-radius:20px;
  border:1px solid var(--border); background:rgba(11,188,214,.08);
  font-size:.68rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--teal-pale); margin-bottom:1rem; font-weight:500;
}
.page-header h1 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(2rem,4vw,3.2rem);
  font-weight: 400; line-height:1.1;
  color: var(--white); margin-bottom:.9rem;
}
.page-header h1 em { font-style:italic; color:var(--teal-pale); }
.ph-meta {
  display:flex; gap:1.8rem; flex-wrap:wrap;
  font-size:.79rem; color:var(--muted); margin-top:1rem;
}
.ph-intro {
  font-size:.92rem; color:var(--body-text); line-height:1.9;
  max-width:780px; margin-top:1.2rem; padding-top:1.2rem;
  border-top:1px solid var(--border-sub);
}

/* ══ DOCUMENT LAYOUT ══ */
.doc-outer {
  max-width:1280px; margin:0 auto;
  display: grid; grid-template-columns:240px 1fr;
  gap:3.5rem; padding:3.5rem 2.5rem;
  align-items:start;
}

/* Sticky sidebar */
.doc-toc {
  position:sticky; top:80px;
  background: var(--navy-card);
  border:1px solid var(--border);
  border-radius:12px; padding:1.5rem;
}
.toc-title { font-size:.68rem; letter-spacing:.2em; text-transform:uppercase; color:var(--teal); margin-bottom:1rem; font-weight:600; }
.toc-list { list-style:none; display:flex; flex-direction:column; gap:.1rem; }
.toc-list a {
  font-size:.79rem; color:var(--muted); padding:.32rem .45rem;
  border-radius:5px; display:block; transition:all .25s;
  border-left:2px solid transparent;
}
.toc-list a:hover { color:var(--teal-pale); background:rgba(11,188,214,.07); border-left-color:var(--teal); }
.toc-list a.active { color:var(--teal-pale); background:rgba(11,188,214,.1); border-left-color:var(--teal); }
.toc-div { height:1px; background:var(--border-sub); margin:.6rem 0; }
.toc-cta {
  margin-top:1rem; padding:.9rem 1rem;
  background:rgba(11,188,214,.07); border-radius:8px;
  border:1px solid rgba(11,188,214,.15);
}
.toc-cta p { font-size:.77rem; color:var(--muted); line-height:1.75; }
.toc-cta a { color:var(--teal-pale); font-size:.77rem; }

/* ══ DOCUMENT SECTIONS ══ */
.doc-section { margin-bottom:2.8rem; scroll-margin-top:88px; }
.doc-section:last-child { margin-bottom:0; }

.sec-num {
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.2rem .72rem; border-radius:20px;
  border:1px solid var(--border); background:rgba(11,188,214,.07);
  font-size:.64rem; letter-spacing:.12em; text-transform:uppercase;
  color:var(--teal-pale); margin-bottom:.85rem; font-weight:500;
}
.doc-section h2 {
  font-family:'DM Serif Display',serif; font-weight:400;
  font-size:1.45rem; color:var(--white); line-height:1.15;
  margin-bottom:1rem; padding-bottom:.75rem;
  border-bottom:1px solid var(--border-sub);
}
.doc-section h3 {
  font-size:.96rem; font-weight:600; color:var(--white);
  margin:1.3rem 0 .55rem;
}
.doc-section p {
  font-size:.89rem; color:var(--body-text); line-height:1.9; margin-bottom:.85rem;
}
.doc-section p:last-child { margin-bottom:0; }
.doc-section ul, .doc-section ol { padding-left:1.3rem; margin-bottom:.85rem; }
.doc-section li { font-size:.89rem; color:var(--body-text); line-height:1.85; margin-bottom:.38rem; }

/* Callout boxes */
.callout {
  padding:1.2rem 1.4rem; border-radius:8px;
  border-left:3px solid var(--teal); background:rgba(11,188,214,.06);
  margin:1.1rem 0;
}
.callout.warn { border-left-color:var(--amber); background:rgba(245,158,11,.06); }
.callout p { font-size:.86rem; color:rgba(185,210,230,.78); margin:0; line-height:1.8; }
.callout strong { color:var(--white); font-weight:500; }

/* Contact grid */
.contact-grid {
  background:var(--navy-card); border:1px solid var(--border);
  border-radius:10px; padding:1.3rem 1.5rem; margin:1.1rem 0;
  display:grid; grid-template-columns:1fr 1fr; gap:.9rem;
}
.cg-item { display:flex; flex-direction:column; gap:.18rem; }
.cg-label { font-size:.67rem; letter-spacing:.1em; text-transform:uppercase; color:var(--muted); }
.cg-val { font-size:.86rem; color:var(--body-text); }
.cg-val a { color:var(--teal-pale); }

/* APP numbered list */
.app-list { list-style:none; padding:0; display:flex; flex-direction:column; gap:.55rem; }
.app-list li {
  display:flex; gap:.9rem; align-items:flex-start;
  padding:.75rem .95rem; border-radius:8px;
  border:1px solid var(--border-sub); background:rgba(255,255,255,.02);
  transition:background .25s;
}
.app-list li:hover { background:rgba(11,188,214,.04); }
.app-n {
  flex-shrink:0; width:26px; height:26px; border-radius:50%;
  background:rgba(11,188,214,.18); border:1px solid rgba(11,188,214,.3);
  display:flex; align-items:center; justify-content:center;
  font-size:.7rem; font-weight:600; color:var(--teal-pale); margin-top:.1rem;
}
.app-name { font-size:.83rem; font-weight:500; color:var(--white); margin-bottom:.2rem; }
.app-desc { font-size:.8rem; color:var(--body-text); line-height:1.72; }

/* ══ SITE FOOTER (matching live site) ══ */
.site-footer {
  background: var(--navy);
  border-top: 1px solid var(--border);
  padding: 3rem 2.5rem 1.5rem;
  margin-top: 4rem;
}
.footer-top {
  display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:3rem;
  padding-bottom:2rem; border-bottom:1px solid var(--border-sub);
  max-width:1280px; margin:0 auto;
}
.footer-brand-logo { font-family:'DM Sans',sans-serif; font-weight:600; font-size:1.1rem; color:var(--white); margin-bottom:.4rem; }
.footer-brand-logo span { color:var(--teal); }
.footer-tagline { font-size:.8rem; color:var(--muted); line-height:1.75; max-width:260px; margin-bottom:1rem; }
.footer-phone { display:flex; align-items:center; gap:.5rem; font-size:.84rem; color:var(--body-text); margin-bottom:.5rem; }
.footer-phone a { color:var(--teal-pale); font-weight:500; }
.footer-col h4 { font-size:.7rem; letter-spacing:.16em; text-transform:uppercase; color:var(--teal); margin-bottom:.9rem; font-weight:600; }
.footer-col ul { list-style:none; display:flex; flex-direction:column; gap:.4rem; }
.footer-col a { font-size:.82rem; color:var(--muted); transition:color .25s; }
.footer-col a:hover { color:var(--white); }
.footer-bottom {
  max-width:1280px; margin:1.2rem auto 0;
  display:flex; align-items:center; justify-content:space-between;
  flex-wrap:wrap; gap:.8rem; font-size:.74rem; color:var(--muted);
}
.footer-bottom a { color:var(--muted); transition:color .25s; }
.footer-bottom a:hover { color:var(--white); }
.footer-legal { display:flex; gap:1.5rem; }

/* ══ RESPONSIVE ══ */
@media(max-width:900px) {
  .site-nav { padding:0 1.5rem; }
  .nav-links { display:none; }
  .breadcrumb { padding:.7rem 1.5rem; }
  .page-header { padding:3rem 1.5rem 2.5rem; }
  .doc-outer { grid-template-columns:1fr; padding:2.5rem 1.5rem; gap:2rem; }
  .doc-toc { position:static; }
  .contact-grid { grid-template-columns:1fr; }
  .footer-top { grid-template-columns:1fr 1fr; padding:2rem 0; gap:2rem; }
  .site-footer { padding:2.5rem 1.5rem 1.2rem; }
}
@media(max-width:540px) {
  .footer-top { grid-template-columns:1fr; }
}

::-webkit-scrollbar { width:5px; }
::-webkit-scrollbar-track { background:var(--navy-deep); }
::-webkit-scrollbar-thumb { background:var(--teal-dim); border-radius:3px; }