:root{
  --ink:#111827;
  --muted:#58657a;
  --line:#d9e1eb;
  --paper:#f5f7fa;
  --white:#fff;
  --navy:#172033;
  --navy-soft:#243249;
  --gold:#c9a55a;
  --gold-dark:#8b661f;
  --teal:#0f766e;
  --green:#166534;
  --shadow:0 16px 38px rgba(16,24,39,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper);line-height:1.55;overflow-x:hidden}
button,a{font:inherit}
a{color:inherit;text-decoration:none}
img,object{display:block;max-width:100%}
.shell{width:min(1180px,calc(100% - 32px));margin:0 auto}
.topbar{position:sticky;top:0;z-index:30;background:rgba(245,247,250,.95);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.top-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:900}
.logo{width:40px;height:40px;border-radius:8px;background:var(--navy);color:var(--gold);display:grid;place-items:center;font-family:Georgia,serif;font-size:25px}
.nav{display:flex;align-items:center;gap:4px}
.nav a{padding:9px 11px;border-radius:6px;color:#46556b;font-size:14px}
.nav a:hover,.nav a[aria-current="page"]{background:#fff;color:var(--ink)}
.home-hero,.product-hero{position:relative;color:#fff;background-size:cover;background-position:center;overflow:hidden}
.home-hero{min-height:86vh;display:flex;align-items:center;background-image:url("./hero-greek-study-launch.png")}
.home-hero::before,.product-hero::before{content:"";position:absolute;inset:0;background:rgba(7,13,25,.68)}
.hero-content{position:relative;width:min(780px,100%);padding:88px 0 132px}
.eyebrow,.kicker{display:inline-block;font-size:12px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}
.eyebrow{border:1px solid rgba(255,255,255,.32);background:rgba(255,255,255,.1);border-radius:6px;padding:7px 10px;color:#f7e8bd}
.kicker{color:var(--gold-dark);margin-bottom:10px}
h1,h2,h3{letter-spacing:0}
h1{font-size:clamp(48px,8vw,88px);line-height:.95;margin:18px 0}
h2{font-size:clamp(30px,4.5vw,50px);line-height:1.05;margin:0 0 12px}
h3{font-size:21px;line-height:1.2;margin:0 0 9px}
p{margin:0 0 12px}
.lead{font-size:18px;color:var(--muted);max-width:780px}
.hero-lead{font-size:21px;color:rgba(255,255,255,.86);max-width:720px}
.hero-actions,.button-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;border:1px solid var(--line);background:#fff;color:var(--ink);font-weight:800;border-radius:7px;padding:11px 16px;cursor:pointer}
.btn:hover{transform:translateY(-1px)}
.btn.gold{background:var(--gold);border-color:var(--gold);color:#111827}
.btn.dark{background:var(--navy);border-color:var(--navy);color:#fff}
.btn.light{background:#fff;border-color:#fff;color:var(--navy)}
.btn.glass{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.34);color:#fff}
.btn[aria-disabled="true"]{opacity:.62;cursor:not-allowed;transform:none}
.hero-strip{position:absolute;left:0;right:0;bottom:0;background:rgba(255,255,255,.95);color:var(--ink);border-top:1px solid rgba(255,255,255,.4)}
.strip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px}
.strip-item{padding:16px 0}
.strip-item strong{display:block;font-size:21px}
.strip-item span{display:block;color:var(--muted);font-size:13px}
section{padding:72px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:26px}
.section-head.compact{margin-bottom:20px}
.text-link{display:inline-flex;align-items:center;gap:7px;color:#244d77;font-weight:800}
.resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.resource-card{min-height:260px;background:#fff;border:1px solid var(--line);border-top:4px solid #64748b;border-radius:8px;padding:20px;box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:space-between}
.resource-card.featured{border-top-color:var(--gold)}
.resource-card.product{border-top-color:var(--teal)}
.resource-card p{color:var(--muted)}
.resource-card footer{margin-top:20px}
.tag{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:6px;padding:5px 8px;font-size:12px;font-weight:900;margin-bottom:14px;background:#f9fbfd;color:#40506a}
.tag.available{background:#e8f5ef;color:var(--green);border-color:#b9e4cc}
.tag.planned{background:#eef2f6;color:#526176}
.tag.light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.28);color:#f5e4b9}
.quiet-action{font-size:13px;font-weight:800;color:#68768b}
.product-band{background:var(--navy);color:#fff}
.product-feature{display:grid;grid-template-columns:.92fr 1.08fr;gap:42px;align-items:center}
.product-copy .lead{color:rgba(255,255,255,.78)}
.check-list{padding:0;margin:22px 0;list-style:none}
.check-list li{position:relative;padding:8px 0 8px 28px;border-top:1px solid rgba(255,255,255,.13)}
.check-list li::before{content:"\2713";position:absolute;left:0;color:#efd590;font-weight:900}
.document-stage{height:520px;background:#fff;border:1px solid rgba(255,255,255,.22);border-radius:8px;overflow:hidden;box-shadow:0 22px 55px rgba(0,0,0,.3)}
.document-stage object{width:100%;height:100%}
.collection-preview{display:flex;flex-direction:column;justify-content:center;align-items:flex-start;gap:14px;padding:34px;background:linear-gradient(145deg,#fff,#f6f0df);color:var(--ink)}
.collection-preview .tag.light{background:#fff7df;border-color:#e4c779;color:#765615}
.collection-preview h3{font-size:34px;color:var(--navy);max-width:520px}
.collection-preview p{color:#4b5870;max-width:560px}
.preview-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;width:100%;margin:8px 0 4px}
.preview-list span{border:1px solid #e2d6b5;background:#fff;border-radius:7px;padding:10px 12px;font-weight:800;color:#23314a}
.preview-actions{margin-top:12px}
.path-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.path-item{padding:28px 26px;border-left:1px solid var(--line)}
.path-item:first-child{border-left:0}
.path-item p{color:var(--muted)}
.path-number{display:block;color:var(--gold-dark);font-weight:900;font-size:13px;margin-bottom:18px}
.site-footer{background:#fff;border-top:1px solid var(--line);padding:46px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px}
.footer-grid>div{display:flex;flex-direction:column;align-items:flex-start;gap:8px}
.footer-grid p,.footer-grid a{color:var(--muted);font-size:14px}
.footer-grid a:hover{color:var(--ink)}
.footer-brand{color:var(--ink)!important}
.footer-bottom{margin-top:36px;padding-top:18px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}
.contact-band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.contact-panel{display:flex;align-items:center;justify-content:space-between;gap:24px}
.contact-panel h2{max-width:720px;color:var(--navy)}
.contact-panel .btn{white-space:nowrap}

.inner-hero{padding:78px 0 50px;background:#fff;border-bottom:1px solid var(--line)}
.inner-hero h1{font-size:clamp(40px,6vw,68px);color:var(--navy);max-width:930px}
.inner-hero .lead{font-size:20px}
.breadcrumb{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:18px}
.catalog-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.catalog-item{background:#fff;border:1px solid var(--line);border-radius:8px;padding:22px}
.catalog-meta{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0;color:var(--muted);font-size:13px}
.passage-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border-top:1px solid var(--line)}
.passage{padding:20px 0;border-bottom:1px solid var(--line)}
.passage:nth-child(odd){padding-right:28px}
.passage:nth-child(even){padding-left:28px;border-left:1px solid var(--line)}
.passage strong{display:block;color:var(--navy);font-size:18px}
.passage span{display:block;color:var(--muted);font-size:14px;margin-top:4px}
.product-hero{min-height:72vh;display:flex;align-items:center;background-image:url("./hero-greek-study-launch.png")}
.product-hero .hero-content{padding:84px 0 70px}
.product-hero h1{max-width:850px;font-size:clamp(42px,6.5vw,72px)}
.price-line{display:flex;align-items:baseline;gap:10px;margin-top:22px}
.price-line strong{font-size:34px;color:#f2d891}
.price-line span{color:rgba(255,255,255,.72)}
.detail-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:start}
.sticky-summary{position:sticky;top:92px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:22px;box-shadow:var(--shadow)}
.sticky-summary h3{font-size:24px}
.sticky-summary .btn{width:100%;margin-top:8px}
.small-note{font-size:12px;color:var(--muted);margin-top:12px}
.content-stack>section{padding:0 0 46px}
.content-stack h2{font-size:32px;color:var(--navy)}
.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.feature-item{border-top:3px solid var(--gold);background:#fff;padding:18px;border-radius:0 0 8px 8px}
.feature-item p{color:var(--muted);font-size:14px}
.sample-frame{height:680px;border:1px solid var(--line);background:#fff;border-radius:8px;overflow:hidden}
.sample-frame object{width:100%;height:100%}
.notice{margin-top:14px;padding:12px 14px;border-left:4px solid var(--gold);background:#fff8e8;color:#604713;font-size:14px}
.licence-block{max-width:840px}
.licence-block h2{font-size:30px;margin-top:40px;color:var(--navy)}
.licence-block h3{margin-top:28px}
.licence-block p,.licence-block li{color:#3f4c60}
.licence-block a{color:#1f5b8f;text-decoration:underline}

@media(max-width:900px){
  .shell{width:min(1180px,calc(100% - 24px))}
  .top-inner{height:auto;align-items:flex-start;padding:12px 0;flex-direction:column}
  .nav{width:100%;overflow-x:auto;white-space:nowrap;padding-bottom:3px;scrollbar-width:none}
  .nav::-webkit-scrollbar{display:none}
  .home-hero{display:block;min-height:auto;background-position:64% center}
  .hero-content{padding:58px 0 42px}
  .hero-strip{position:relative}
  .strip-grid,.resource-grid,.product-feature,.path-grid,.catalog-grid,.detail-grid,.footer-grid{grid-template-columns:1fr}
  .section-head{display:block}
  .section-head .text-link{margin-top:14px}
  .resource-card{min-height:0}
  .path-item,.path-item:first-child{border-left:0;border-top:1px solid var(--line)}
  .path-item:first-child{border-top:0}
  .document-stage{height:480px}
  .collection-preview{min-height:420px}
  .contact-panel{align-items:flex-start;flex-direction:column}
  .sticky-summary{position:static}
  .passage-list{grid-template-columns:1fr}
  .passage:nth-child(odd),.passage:nth-child(even){padding:18px 0;border-left:0}
  .feature-list{grid-template-columns:1fr}
  section{padding:52px 0}
}
@media(max-width:560px){
  .shell{width:min(1180px,calc(100% - 20px))}
  h1{font-size:40px;line-height:1.02}
  .hero-lead,.inner-hero .lead{font-size:17px}
  .nav{justify-content:space-between;gap:0}
  .nav a{padding:8px 6px;font-size:13px}
  .hero-actions,.button-row{display:grid}
  .hero-actions .btn,.button-row .btn{width:100%}
  .product-hero{min-height:auto}
  .product-hero .hero-content{padding:42px 0 34px}
  .product-hero h1{font-size:38px}
  .product-hero .hero-lead{font-size:16px}
  .product-hero .hero-actions{margin-top:20px}
  .document-stage{height:390px}
  .collection-preview{height:auto;min-height:0;padding:24px}
  .collection-preview h3{font-size:26px}
  .preview-list{grid-template-columns:1fr}
  .sample-frame{height:520px}
  .inner-hero{padding:48px 0 36px}
}