:root{--primary:#3f46d8;--primary2:#2933b9;--ink:#171b3a;--muted:#68708c;--bg:#f7f8fc;--line:#e6e8f1;--yellow:#f5c928;--white:#fff;--radius:20px;--shadow:0 18px 50px rgba(31,42,100,.08)}*{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(--ink);background:var(--bg);line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%}.container{width:min(1160px,calc(100% - 32px));margin:auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav-wrap{min-height:76px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:10px;color:var(--primary);min-width:190px}.brand-mark{width:42px;height:42px;border:3px solid var(--primary);border-radius:12px;display:grid;place-items:center;font-weight:800}.brand strong{display:block;font-size:21px;line-height:1}.brand small{display:block;letter-spacing:4px;font-size:9px;color:#727894;margin-top:4px}nav{display:flex;gap:22px;align-items:center;flex:1;justify-content:center}nav a{font-size:14px;font-weight:650;color:#59617c;padding:28px 0;position:relative}nav a.active,nav a:hover{color:var(--primary)}nav a.active:after{content:"";position:absolute;height:3px;bottom:17px;left:0;right:0;background:var(--primary);border-radius:3px}.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:12px;padding:12px 20px;font-weight:800;cursor:pointer;transition:.2s}.btn:hover{transform:translateY(-2px)}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(63,70,216,.2)}.btn-yellow{background:var(--yellow);color:#15183b}.btn-outline{border:1px solid var(--line);background:#fff}.small-btn{padding:9px 13px;font-size:13px}.menu-btn{display:none;background:none;border:0;font-size:26px}.hero{background:linear-gradient(135deg,#131a51,#3946d7);color:#fff;padding:78px 0}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:center}.eyebrow{display:inline-flex;padding:7px 12px;border-radius:999px;background:rgba(255,255,255,.12);font-weight:750;font-size:13px}.hero h1{font-size:clamp(40px,6vw,68px);line-height:1.03;margin:18px 0}.hero p{font-size:18px;opacity:.9;max-width:640px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.hero-art{min-height:370px;border-radius:32px;background:linear-gradient(145deg,rgba(255,255,255,.16),rgba(255,255,255,.04));border:1px solid rgba(255,255,255,.2);display:grid;place-items:center;font-size:120px;box-shadow:0 30px 80px rgba(0,0,0,.18)}.section{padding:70px 0}.section.alt{background:#fff}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:28px}.section-head h2{font-size:32px;line-height:1.15;margin:0 0 6px}.muted{color:var(--muted)}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.card,.course-card,.content-card,.side-card,.category-card,.step-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.course-card{overflow:hidden}.course-thumb{height:170px;display:grid;place-items:center;font-size:70px;background:linear-gradient(135deg,#eef0ff,#e8f4ff)}.course-body{padding:19px}.course-body h3{font-size:18px;line-height:1.3;margin:7px 0}.course-body p{font-size:14px;color:var(--muted);margin:8px 0 14px}.meta{font-size:12px;color:#777f99}.price{font-size:19px;font-weight:850}.old{text-decoration:line-through;color:#9aa0b2;font-size:13px;margin-left:5px}.category-card{padding:24px}.category-icon{font-size:42px}.category-card h3{margin:8px 0 4px}.feature-strip{background:#101641;color:#fff;padding:30px 0}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}.feature-grid b{font-size:24px;display:block}.cta{background:linear-gradient(135deg,#3f46d8,#2834bc);color:#fff;border-radius:30px;padding:50px;text-align:center}.cta h2{font-size:38px;margin:0 0 8px}.search-box{background:#fff;border:1px solid var(--line);padding:7px;border-radius:14px;display:flex;max-width:700px;margin:25px auto}.search-box input{flex:1;border:0;outline:0;padding:12px 14px;font-size:15px}.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:25px}.pill{border:1px solid var(--line);background:#fff;padding:9px 14px;border-radius:999px;font-size:13px}.detail-hero{padding:50px 0;background:#fff;border-bottom:1px solid var(--line)}.detail-layout{display:grid;grid-template-columns:1fr 350px;gap:30px}.content-card{padding:30px}.side-card{padding:25px;position:sticky;top:95px}.detail-icon{height:240px;border-radius:24px;background:#eef0ff;display:grid;place-items:center;font-size:100px;margin-bottom:25px}.fact{display:flex;justify-content:space-between;gap:10px;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}.lesson-list{margin:20px 0 0;padding:0;list-style:none}.lesson-list li{padding:15px;border:1px solid var(--line);border-radius:12px;margin-bottom:8px;background:#fff}.form-card{max-width:720px;margin:auto;background:#fff;padding:30px;border:1px solid var(--line);border-radius:22px}.form-card label{font-weight:700;font-size:14px;display:block;margin-top:14px}.form-card input,.form-card textarea,.form-card select{width:100%;padding:13px;border:1px solid #dfe2ec;border-radius:10px;margin-top:7px;font:inherit}.timeline{display:grid;gap:16px}.step-card{padding:24px;display:flex;gap:18px}.step-no{width:42px;height:42px;flex:0 0 42px;border-radius:50%;background:#e9ebff;color:var(--primary);display:grid;place-items:center;font-weight:900}.footer{background:#0d1338;color:#d8dcf0;margin-top:0}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:55px 0}.footer h4{color:#fff;margin:0 0 14px}.footer-grid>div>a:not(.brand),.footer-grid>div>p{display:block;margin:8px 0;color:#aeb5d2;font-size:14px}.footer-brand{margin-bottom:15px}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;color:#8991b2;font-size:13px}.floating-wa{position:fixed;right:20px;bottom:20px;width:56px;height:56px;border-radius:50%;background:#25d366;color:#fff;display:grid;place-items:center;font-size:28px;z-index:60;box-shadow:0 12px 30px rgba(0,0,0,.2)}.admin-wrap{padding:45px 0}.admin-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.stat{padding:22px;background:#fff;border:1px 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