:root{
  --bg:#04111c;
  --bg2:#0a2740;
  --panel:rgba(255,255,255,.07);
  --panel2:rgba(255,255,255,.05);
  --gold:#e4b55f;
  --gold-soft:rgba(228,181,95,.12);
  --aqua:#4fd4e4;
  --muted:#bfd2da;
  --danger:#ff6d5f;
  --ink:#17252e;
  --paper:#f7f1e1;
  --shadow:0 18px 48px rgba(0,0,0,.28);
  --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;line-height:1.65;background:linear-gradient(180deg,var(--bg) 0%, var(--bg2) 48%, #061521 100%);color:#f6fbfd}
a{color:inherit}
img{max-width:100%;display:block}
.topbar{position:sticky;top:0;z-index:100;background:rgba(4,17,28,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav{max-width:1200px;margin:auto;padding:12px 22px;display:flex;justify-content:space-between;align-items:center;gap:14px}
.brand{font-weight:900;letter-spacing:.08em;color:var(--gold);text-decoration:none}
.navlinks{display:flex;flex-wrap:wrap;gap:8px}
.navlinks a{text-decoration:none;color:var(--muted);padding:8px 11px;border-radius:999px;font-size:.92rem}
.navlinks a:hover,.navlinks a.active{background:var(--panel);color:#fff}
.hero{position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 15% 15%, rgba(79,212,228,.18), transparent 24%),radial-gradient(circle at 90% 10%, rgba(228,181,95,.10), transparent 22%),linear-gradient(180deg, rgba(0,0,0,.12), rgba(0,0,0,.62));pointer-events:none}
.hero::after{content:"";position:absolute;left:-10%;right:-10%;bottom:-5%;height:220px;background:repeating-radial-gradient(ellipse at center bottom, rgba(79,212,228,.18) 0 18px, transparent 18px 42px);transform:rotate(-2deg);opacity:.65}
.hero-inner{max-width:1200px;margin:auto;padding:82px 22px 66px;position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:center}
.hero-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10);border-radius:28px;overflow:hidden;box-shadow:var(--shadow)}
.hero-card img{width:100%;height:100%;min-height:400px;object-fit:contain;background:#061521;padding:12px}
.kicker{display:inline-block;text-transform:uppercase;letter-spacing:.16em;font-weight:800;font-size:.82rem;color:var(--gold);margin-bottom:14px}
h1{font-family:Georgia,serif;font-size:clamp(3rem,8vw,5.8rem);line-height:.92;margin:0 0 18px;text-shadow:0 10px 30px rgba(0,0,0,.3)}
h2.section-title{font-family:Georgia,serif;font-size:clamp(2rem,5vw,3.3rem);margin:0 0 10px}
h3{line-height:1.2}
.hero p,.lead{font-size:1.08rem;color:#d2e3ea;max-width:900px}
.alert{background:#472126;border-top:1px solid #9b454a;border-bottom:1px solid #9b454a;padding:16px 22px;text-align:center;font-weight:800}
.container{max-width:1200px;margin:auto;padding:72px 22px}
.grid2,.grid3,.grid4,.story-grid,.feature-grid,.stats-grid,.cta-grid{display:grid;gap:18px}
.grid2{grid-template-columns:repeat(2,1fr)}
.grid3{grid-template-columns:repeat(3,1fr)}
.grid4{grid-template-columns:repeat(4,1fr)}
.feature-grid{grid-template-columns:1.1fr .9fr}
.stats-grid{grid-template-columns:repeat(4,1fr)}
.cta-grid{grid-template-columns:repeat(2,1fr)}
.story-grid{grid-template-columns:1.05fr .95fr;align-items:stretch}
.card,.story-card,.feature-card,.metric,.timeline,.cta-box{background:var(--panel);border:1px solid rgba(255,255,255,.10);border-radius:var(--radius);padding:24px;box-shadow:0 10px 30px rgba(0,0,0,.12)}
.card h3,.story-card h3,.feature-card h3,.cta-box h3{margin:0 0 8px;color:var(--gold)}
.number{font-size:2.25rem;line-height:1;color:var(--aqua);font-weight:900}
.metric{text-align:center;padding:20px}
.metric strong{display:block;font-size:2rem;color:var(--gold);line-height:1}
.story-photo,.feature-photo{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);border-radius:24px;overflow:hidden;box-shadow:var(--shadow)}
.story-photo img,.feature-photo img{width:100%;height:100%;object-fit:contain;background:#07131f;padding:12px}
.quote{padding:18px 20px;border-left:5px solid var(--gold);background:rgba(228,181,95,.10);border-radius:0 14px 14px 0;margin:18px 0;color:#fff5dc}
.btnrow{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.btn{display:inline-block;text-decoration:none;padding:13px 18px;border-radius:12px;font-weight:800;border:1px solid rgba(255,255,255,.13);box-shadow:var(--shadow)}
.btn.primary{background:var(--gold);color:#13212a}
.btn.secondary{background:rgba(255,255,255,.08);color:#fff}
.btn.ghost{background:transparent;color:#fff}
.btn.small{padding:10px 14px;font-size:.92rem}
.pill-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-block;padding:6px 11px;border-radius:999px;background:rgba(79,212,228,.10);color:#dcfbff;font-size:.85rem}
.quicknav{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-top:22px}
.quicknav .step{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:16px;text-align:center}
.quicknav strong{display:block;color:var(--gold);font-size:1.04rem}
.photo-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);border-radius:20px;overflow:hidden;box-shadow:0 10px 28px rgba(0,0,0,.14);display:flex;flex-direction:column;height:100%}
.photo-card .image-stage{background:#07131f;display:flex;align-items:center;justify-content:center;overflow:hidden}
.photo-card img{width:100%;height:100%;object-fit:contain;object-position:center;background:#07131f}
.photo-card .cap{padding:14px 16px;color:#d7e7ec;font-size:.96rem;margin-top:auto}
.gallery{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:18px;margin-top:22px;align-items:start}
.photo-card.landscape{grid-column:span 7}
.photo-card.portrait{grid-column:span 5}
.photo-card.square{grid-column:span 4}
.photo-card.wide{grid-column:span 8}
.photo-card.landscape .image-stage{aspect-ratio:16/10}
.photo-card.portrait .image-stage{aspect-ratio:4/5}
.photo-card.square .image-stage{aspect-ratio:1/1}
.photo-card.wide .image-stage{aspect-ratio:16/9}
.module{margin:28px 0;background:linear-gradient(135deg, rgba(255,255,255,.08), rgba(255,255,255,.03));border:1px solid rgba(255,255,255,.10);border-radius:24px;overflow:hidden}
.module-head{padding:22px 26px;background:rgba(0,0,0,.16);display:flex;gap:16px;align-items:center}
.badge{min-width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:var(--gold);color:#13212a;font-weight:900}
.module-body{padding:24px 26px}
.module-body h3{color:var(--aqua)}
.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:18px 0}
.check{background:var(--panel2);border-radius:14px;padding:13px 14px}
.tip,.danger,.task,.takeaway{padding:16px 18px;border-left:5px solid var(--aqua);background:rgba(79,212,228,.08);border-radius:0 12px 12px 0;margin:18px 0}
.danger{border-color:var(--danger);background:rgba(255,107,95,.08)}
.task{border-color:var(--gold);background:rgba(228,181,95,.10)}
.takeaway{border-color:#6fe0af;background:rgba(111,224,175,.10)}
.diagram{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:10px;align-items:center;text-align:center;background:rgba(0,0,0,.16);padding:18px;border-radius:18px;margin:18px 0}
.part{padding:14px;background:rgba(255,255,255,.07);border-radius:12px;font-weight:800}
.arrow{font-size:1.45rem;color:var(--gold)}
.table-wrap{overflow:auto;margin-top:18px}
table{width:100%;border-collapse:collapse;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:14px;overflow:hidden}
th,td{padding:14px 16px;text-align:left;border-bottom:1px solid rgba(255,255,255,.08)}
th{background:rgba(0,0,0,.18);color:var(--gold)}
.learn-path{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:22px}
.learn-step{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:18px}
.learn-step strong{display:block;color:var(--gold);margin-bottom:6px}
.page-pager{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:30px}
.page-pager a{flex:1;min-width:230px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);padding:16px 18px;border-radius:18px;text-decoration:none}
.page-pager a span{display:block;font-size:.85rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.page-pager a strong{display:block;color:#fff;margin-top:4px}
.quiz{background:var(--paper);color:var(--ink);border-radius:24px;padding:28px}
.quiz h2,.quiz h3{color:#0b546c}
.question{padding:18px 0;border-bottom:1px solid #d8d0c0}
.question label{display:block;margin:7px 0}
.quiz button{border:0;background:#0b546c;color:#fff;padding:12px 18px;border-radius:10px;font-weight:800;cursor:pointer}
#result{font-weight:900;margin-top:18px}
.certificate{background:#f7f0df;color:#17232b;border:8px double var(--gold);padding:42px 28px;border-radius:8px;text-align:center}
.certificate h2{font-family:Georgia,serif;font-size:2.8rem;margin:0;color:#143f52}
.name-line{border-bottom:2px solid #666;margin:30px auto 10px;max-width:520px;height:34px}
.footer{margin-top:28px;text-align:center;color:var(--muted);padding:42px 20px;border-top:1px solid rgba(255,255,255,.08)}
.small{font-size:.92rem;color:var(--muted)}
ul.tight li{margin-bottom:6px}
@media (max-width:980px){
  .hero-inner,.grid2,.grid3,.grid4,.gallery,.quicknav,.checklist,.story-grid,.feature-grid,.stats-grid,.cta-grid,.learn-path{grid-template-columns:1fr !important}
  .navlinks{display:none}
  .diagram{grid-template-columns:1fr}
  .arrow{transform:rotate(90deg)}
  .hero-card img{min-height:260px}
  .photo-card.landscape,.photo-card.portrait,.photo-card.square,.photo-card.wide{grid-column:1/-1}
  .photo-card.landscape .image-stage,.photo-card.wide .image-stage{aspect-ratio:16/10}
  .photo-card.portrait .image-stage{aspect-ratio:4/5}
}
@media print{
  .topbar,.btnrow,.alert,.quiz button,.page-pager{display:none}
  body{background:#fff;color:#000}
  .card,.story-card,.feature-card,.module,.photo-card,.certificate,.story-photo,.feature-photo,.metric,.timeline,.cta-box{background:#fff;color:#000;border:1px solid #bbb;break-inside:avoid}
  .module-body h3,.card h3,.story-card h3,.feature-card h3{color:#164a61}
}