:root{
  --brand:#0c3b2e; --brand-2:#155a3f; --gold:#c9a227; --gold-2:#e8c662;
  --bg:#f7f5ef; --ink:#1a1a1a; --muted:#6b6b6b; --line:#e7e3d6;
}
*{box-sizing:border-box}html,body{margin:0;padding:0}
body{font-family:'Plus Jakarta Sans',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.55}
img{max-width:100%;display:block}a{color:var(--brand-2);text-decoration:none}a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:'Playfair Display',Georgia,serif;color:var(--brand);margin:0 0 .5em;line-height:1.2}
h1{font-size:clamp(32px,4.6vw,52px)}h2{font-size:clamp(24px,3vw,36px)}h3{font-size:20px}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
.btn{display:inline-block;padding:12px 22px;border-radius:8px;font-weight:600;cursor:pointer;border:0;font-size:15px;transition:.15s}
.btn-primary{background:var(--brand);color:#fff}.btn-primary:hover{background:var(--brand-2);text-decoration:none}
.btn-gold{background:var(--gold);color:#1a1a1a}.btn-gold:hover{background:var(--gold-2);text-decoration:none}
.btn-ghost{background:transparent;color:var(--brand);border:1.5px solid var(--brand)}.btn-ghost:hover{background:var(--brand);color:#fff;text-decoration:none}
.muted{color:var(--muted)}
/* Header */
.site-header{position:sticky;top:0;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);z-index:50}
.nav{display:flex;align-items:center;gap:24px;height:72px;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px;color:var(--brand);font-size:14px}
.brand b{display:block;font-size:16px;font-family:'Playfair Display';color:var(--brand)}.brand small{color:var(--muted);font-size:11px;display:block}
.brand-mark{width:38px;height:38px;border-radius:10px;background:var(--brand);color:var(--gold);display:grid;place-items:center;font-weight:800;font-family:'Playfair Display';font-size:20px}
.site-header nav{display:flex;gap:22px}.site-header nav a{color:#222;font-weight:500;font-size:14px}
.nav-cta{display:flex;gap:10px}
.hamb{display:none;background:none;border:0;font-size:24px;cursor:pointer}
@media(max-width:900px){.site-header nav{position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;padding:20px;border-bottom:1px solid var(--line);display:none}.site-header nav.open{display:flex}.hamb{display:block}.nav-cta{display:none}}
/* Hero */
.hero{padding:80px 0 60px;background:radial-gradient(1200px 600px at 80% -10%,rgba(201,162,39,.15),transparent),linear-gradient(180deg,#fff,var(--bg))}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}}
.eyebrow{display:inline-block;background:var(--brand);color:var(--gold);padding:6px 12px;border-radius:99px;font-size:12px;font-weight:600;letter-spacing:.5px;text-transform:uppercase}
.hero-img{border-radius:18px;box-shadow:0 30px 60px rgba(0,0,0,.18);aspect-ratio:4/3;object-fit:cover}
.stats{display:flex;gap:32px;margin-top:28px}.stats div{border-left:3px solid var(--gold);padding-left:14px}.stats b{font-family:'Playfair Display';font-size:28px;color:var(--brand);display:block}
/* Sections */
section{padding:60px 0}.section-head{text-align:center;max-width:680px;margin:0 auto 40px}
.grid{display:grid;gap:20px}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.grid-2{grid-template-columns:1.2fr .8fr}
@media(max-width:900px){.grid-3,.grid-4,.grid-2{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;transition:.15s}.card:hover{transform:translateY(-4px);box-shadow:0 20px 40px rgba(0,0,0,.08)}
.card .icon{width:46px;height:46px;border-radius:10px;background:var(--brand);color:var(--gold);display:grid;place-items:center;font-weight:bold;font-size:20px;margin-bottom:14px}
.course-card{background:#fff;border-radius:14px;overflow:hidden;border:1px solid var(--line);transition:.15s;display:flex;flex-direction:column}
.course-card:hover{transform:translateY(-4px);box-shadow:0 20px 40px rgba(0,0,0,.1)}
.course-card img{aspect-ratio:16/10;object-fit:cover}
.course-card .body{padding:18px;display:flex;flex-direction:column;flex:1}
.tag{display:inline-block;background:rgba(12,59,46,.08);color:var(--brand);padding:3px 10px;border-radius:6px;font-size:11px;font-weight:600;margin-right:6px;text-transform:uppercase}
.price{font-size:22px;color:var(--brand);font-weight:700;font-family:'Playfair Display'}
/* Footer */
.site-footer{background:var(--brand);color:#d8e6df;padding:60px 0 0;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:40px}
.site-footer h4{color:var(--gold);font-family:'Plus Jakarta Sans';font-size:14px;text-transform:uppercase;letter-spacing:1px;margin-bottom:16px}
.site-footer a{color:#d8e6df;display:block;padding:4px 0;font-size:14px}.site-footer .brand b,.site-footer .brand small{color:#fff}
.site-footer input{width:100%;padding:10px;border:1px solid #2a5142;background:#0a3327;color:#fff;border-radius:8px;margin-bottom:8px}
.foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;padding:20px 0;border-top:1px solid #2a5142;margin-top:40px;font-size:13px;color:#9fb8ac}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}.foot-bottom{flex-direction:column;text-align:center}}
/* Forms */
.form-card{background:#fff;padding:32px;border-radius:14px;border:1px solid var(--line);max-width:480px;margin:40px auto}
.form-card h2{text-align:center}
.form-card label{display:block;font-size:13px;margin:12px 0 4px;color:#444;font-weight:500}
.form-card input,.form-card textarea,.form-card select{width:100%;padding:11px 13px;border:1px solid #d8d4c6;border-radius:8px;font:inherit;background:#fff}
.form-card .btn{width:100%;margin-top:18px}
.msg{padding:12px;border-radius:8px;margin:10px 0;font-size:14px}
.msg-ok{background:#ecf7f1;color:#0b4e2e;border:1px solid #b8dcc8}
.msg-err{background:#fdeeee;color:#7a1717;border:1px solid #f3b9b9}
/* Chatbot */
#chatbot{position:fixed;right:18px;bottom:18px;z-index:60;font-size:14px}
#chatToggle{width:56px;height:56px;border-radius:50%;background:var(--brand);color:var(--gold);border:0;font-size:24px;cursor:pointer;box-shadow:0 10px 30px rgba(0,0,0,.25)}
#chatBox{position:absolute;right:0;bottom:70px;width:340px;background:#fff;border-radius:14px;box-shadow:0 20px 50px rgba(0,0,0,.25);overflow:hidden;display:flex;flex-direction:column;max-height:480px}
.chat-head{background:var(--brand);color:#fff;padding:12px 16px;display:flex;justify-content:space-between;align-items:center}
.chat-head button{background:none;border:0;color:#fff;font-size:22px;cursor:pointer}
#chatMsgs{padding:14px;overflow:auto;flex:1;display:flex;flex-direction:column;gap:8px}
#chatMsgs .bot,#chatMsgs .me{padding:8px 12px;border-radius:12px;max-width:85%;line-height:1.45}
#chatMsgs .bot{background:#f0ece1;color:#1a1a1a;align-self:flex-start}
#chatMsgs .me{background:var(--brand);color:#fff;align-self:flex-end}
#chatForm{display:flex;border-top:1px solid var(--line)}#chatForm input{flex:1;border:0;padding:12px;font:inherit;outline:none}#chatForm button{background:var(--brand);color:#fff;border:0;padding:0 16px;cursor:pointer;font-size:18px}
/* LMS */
.lms-grid{display:grid;grid-template-columns:1fr 320px;gap:28px}
@media(max-width:900px){.lms-grid{grid-template-columns:1fr}}
.lesson-list a{display:flex;gap:10px;padding:10px;border-radius:8px;color:#222}
.lesson-list a:hover{background:#f0ece1;text-decoration:none}
.lesson-list a.done{color:#0c3b2e}.lesson-list a.active{background:var(--brand);color:#fff}
.video-wrap{aspect-ratio:16/9;background:#000;border-radius:12px;overflow:hidden}
.video-wrap iframe{width:100%;height:100%;border:0}
.progress{height:8px;background:#e7e3d6;border-radius:4px;overflow:hidden;margin:8px 0}
.progress > div{height:100%;background:var(--gold);transition:width .3s}
table{width:100%;border-collapse:collapse;background:#fff;border-radius:10px;overflow:hidden;border:1px solid var(--line)}
table th,table td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--line);font-size:14px}
table th{background:#f0ece1;color:#0c3b2e;font-weight:600}
.badge{display:inline-block;padding:3px 8px;border-radius:6px;font-size:11px;font-weight:600}
.badge-ok{background:#dff5e6;color:#0b6a32}.badge-warn{background:#fff3d6;color:#7a5500}.badge-err{background:#ffe3e3;color:#8a1c1c}