:root{--green:#2B2B2B;--green2:#1F1F1F;--gold:#C89D3A;--sand:#E7D8B6;--char:#2B2B2B;--ivory:#FCF7F0;--white:#fff;--muted:#756B5E;--line:#DDD2C0;--danger:#9B2C2C;--success:#8B6C2C;--shadow:0 14px 40px rgba(43,43,43,.11);--bronze:#9B7A3D;--taupe:#8B7E6A;--cream:#F4EEE3}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--char);background:var(--ivory);line-height:1.55}a{color:var(--green);text-decoration:none}img{max-width:100%}.container{width:min(1180px,92vw);margin:auto}.topbar{background:var(--green2);color:white;padding:.45rem 0;font-size:.86rem}.topbar .container{display:flex;justify-content:space-between;gap:1rem}.nav{position:sticky;top:0;z-index:20;background:rgba(252,247,240,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav-inner{display:flex;align-items:center;justify-content:space-between;min-height:76px;gap:1rem}.brand{display:flex;align-items:center;gap:.7rem;font-family:Georgia,serif;font-size:1.45rem}.brand img{width:48px;height:48px;object-fit:contain}.nav-links{display:flex;align-items:center;gap:1.05rem;flex-wrap:wrap}.nav-links a{font-weight:650;font-size:.92rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.45rem;border:0;border-radius:10px;padding:.78rem 1.05rem;font-weight:750;cursor:pointer;background:var(--green);color:white}.btn:hover{filter:brightness(.96)}.btn.gold{background:var(--gold);color:#1e1e1e}.btn.outline{background:transparent;border:1px solid var(--green);color:var(--green)}.btn.small{padding:.52rem .78rem;font-size:.88rem}.hero{padding:72px 0 48px;background:radial-gradient(circle at 85% 15%,rgba(200,157,58,.15),transparent 32%),linear-gradient(180deg,#fffaf4,var(--ivory))}.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:3rem;align-items:center}.eyebrow{color:var(--gold);text-transform:uppercase;letter-spacing:.14em;font-weight:800;font-size:.8rem}.hero h1,.page-hero h1{font-family:Georgia,serif;color:var(--green);line-height:1.04;font-size:clamp(2.6rem,6vw,5.4rem);margin:.5rem 0 1rem}.hero p{font-size:1.15rem;max-width:680px}.hero-card{background:white;border:1px solid var(--line);border-radius:24px;padding:1.5rem;box-shadow:var(--shadow)}.hero-card img{display:block;width:100%;max-height:470px;object-fit:contain}.actions{display:flex;gap:.75rem;flex-wrap:wrap;margin-top:1.4rem}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-top:2rem}.stat{background:white;border:1px solid var(--line);border-radius:14px;padding:1rem}.stat strong{display:block;font-size:1.5rem;color:var(--green)}section{padding:58px 0}.section-title{font-family:Georgia,serif;color:var(--green);font-size:2.2rem;margin:0 0 .4rem}.section-lead{color:var(--muted);max-width:800px}.grid{display:grid;gap:1.2rem}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.card{background:white;border:1px solid var(--line);border-radius:16px;padding:1.25rem;box-shadow:0 6px 24px rgba(43,43,43,.055)}.card h3{color:var(--green);margin-top:0}.pill{display:inline-block;border-radius:999px;background:#f2ead6;color:#694f14;padding:.28rem .65rem;font-weight:750;font-size:.78rem}.module-list{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.module-card{background:#fff;border:1px solid var(--line);padding:1.15rem;border-radius:16px;display:flex;flex-direction:column}.module-number{font-size:.78rem;color:var(--gold);font-weight:900;letter-spacing:.12em}.module-card h3{margin:.3rem 0;color:var(--green)}.module-card .meta{margin-top:auto;color:var(--muted);font-size:.85rem}.page-hero{padding:48px 0 28px;background:linear-gradient(180deg,#fffaf4,var(--ivory))}.page-hero h1{font-size:clamp(2.4rem,5vw,4.2rem)}.toolbar{display:flex;gap:.7rem;align-items:center;flex-wrap:wrap;margin:1rem 0}.input,.select,textarea{width:100%;border:1px solid #cfc8bb;background:white;border-radius:10px;padding:.76rem .85rem;font:inherit}.toolbar .input,.toolbar .select{width:auto;min-width:180px}.table-wrap{overflow:auto;background:white;border:1px solid var(--line);border-radius:14px}table{border-collapse:collapse;width:100%;min-width:860px}th,td{text-align:left;padding:.78rem;border-bottom:1px solid #eee8dd;font-size:.9rem}th{background:#f7f1e7;color:var(--green);position:sticky;top:0}.notice{padding:1rem 1.1rem;border-left:4px solid var(--gold);background:#fff8e8;border-radius:10px;margin:1rem 0}.success{border-left-color:var(--success);background:#F5EFE3}.danger{border-left-color:var(--danger);background:#fff0f0}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.9rem}.form-row label{display:block;font-weight:750;margin-bottom:.35rem}.calc-output{font-size:1.05rem}.calc-output strong{color:var(--green)}.lesson-layout{display:grid;grid-template-columns:300px 1fr;gap:1.5rem;align-items:start}.sidebar{position:sticky;top:95px;background:white;border:1px solid var(--line);border-radius:14px;padding:1rem;max-height:78vh;overflow:auto}.sidebar a{display:block;padding:.55rem .6rem;border-radius:8px}.sidebar a:hover{background:#f4eee3}.lesson{background:white;border:1px solid var(--line);border-radius:16px;padding:1.5rem;margin-bottom:1rem}.lesson h2{color:var(--green)}.lesson .objective{background:#f8f4ec;padding:.8rem 1rem;border-radius:10px}.quiz{border-top:1px solid var(--line);margin-top:1rem;padding-top:1rem}.quiz label{display:block;margin:.45rem 0}.progressbar{height:10px;background:#e6e0d5;border-radius:999px;overflow:hidden}.progressbar>span{display:block;height:100%;background:var(--gold)}.footer{background:var(--green2);color:#eaf2ee;padding:42px 0}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem}.footer a{color:#fff}.auth-card{max-width:520px;margin:40px auto;background:white;border:1px solid var(--line);border-radius:18px;padding:1.5rem}.install-banner{display:none;position:fixed;right:18px;bottom:18px;z-index:50;background:white;border:1px solid var(--line);box-shadow:var(--shadow);padding:1rem;border-radius:14px;max-width:320px}.install-banner.show{display:block}.badge{font-size:.78rem;padding:.25rem .55rem;border-radius:999px;background:#F0E8D8;color:var(--green);font-weight:800}.country-card{min-height:180px}.country-flag{font-size:2rem}.desk-case{border-left:4px solid var(--gold)}.footer-note{opacity:.8;font-size:.85rem}@media(max-width:900px){.hero-grid,.two-col,.lesson-layout,.footer-grid{grid-template-columns:1fr}.grid-3,.grid-4,.module-list,.stats{grid-template-columns:repeat(2,1fr)}.sidebar{position:static;max-height:none}.nav-links{display:none}.form-grid{grid-template-columns:1fr}}@media(max-width:560px){.grid-3,.grid-4,.module-list,.stats{grid-template-columns:1fr}.topbar .container{display:block}.hero{padding-top:42px}.toolbar .input,.toolbar .select{width:100%}}

/* v3 responsive navigation */
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;flex:0 0 auto}.menu-toggle span{display:block;width:22px;height:2px;background:var(--green);transition:.2s}.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}.menu-toggle.open span:nth-child(2){opacity:0}.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(max-width:900px){.nav-inner{min-height:68px;position:relative}.brand{font-size:1.25rem}.brand img{width:42px;height:42px}.menu-toggle{display:flex}.nav-links{display:none;position:absolute;left:0;right:0;top:68px;background:rgba(252,247,240,.995);border:1px solid var(--line);border-top:0;border-radius:0 0 16px 16px;box-shadow:0 18px 36px rgba(43,43,43,.16);padding:.8rem;flex-direction:column;align-items:stretch;gap:.1rem;max-height:calc(100vh - 90px);overflow:auto}.nav-links.open{display:flex}.nav-links a{display:block;padding:.8rem .9rem;border-radius:9px;font-size:1rem}.nav-links a:hover{background:#f4eee3}.nav-links .btn{margin-top:.4rem}.topbar{font-size:.74rem}.topbar .container span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}}
@media(max-width:560px){.topbar .container span:first-child{display:none}.topbar .container{text-align:center}.nav .container{width:min(94vw,1180px)}.install-banner{left:12px;right:12px;bottom:12px;max-width:none}}


/* v4.1 neutral luxury theme: no green UI colours. Legacy --green variable names are retained only for backwards-compatible selectors and now resolve to charcoal. */
/* v4 certificates are generated server-side as A4 landscape PDFs only. No image/HTML certificate rendering. */