@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Bengali:wght@400;500;600;700;800&display=swap');
:root{--bg:#f6f8fc;--surface:#fff;--text:#172033;--muted:#667085;--line:#e6eaf2;--primary:#5b5ce2;--primary2:#7c3aed;--accent:#11b981;--shadow:0 14px 40px rgba(24,35,70,.08)}
[data-theme=dark]{--bg:#0b1020;--surface:#131b2e;--text:#f3f5fb;--muted:#aab4ca;--line:#28334a;--primary:#8b8cf7;--primary2:#a78bfa;--accent:#34d399;--shadow:0 14px 40px rgba(0,0,0,.22)}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:"Noto Sans Bengali",system-ui,sans-serif;line-height:1.65;transition:background .2s,color .2s}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}.container{width:min(1160px,92%);margin:auto}.topbar{background:linear-gradient(90deg,#4f46e5,#7c3aed);color:#fff;text-align:center;padding:8px;font-size:13px}.header{position:sticky;top:0;z-index:10;background:var(--surface);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;gap:20px;min-height:76px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;white-space:nowrap}.logo{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,#6366f1,#8b5cf6);display:grid;place-items:center;color:white;font-weight:900}.navlinks{display:flex;gap:17px;margin-left:auto;color:var(--muted);font-size:14px}.navlinks a:hover{color:var(--primary)}.navactions{display:flex;align-items:center;gap:8px}.iconbtn,.menu-btn{border:1px solid var(--line);background:var(--surface);color:var(--text);width:42px;height:42px;border-radius:13px;display:grid;place-items:center}.menu-btn{display:none}.btn{border:0;border-radius:13px;padding:12px 18px;background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;font-weight:750;display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer}.btn:hover{filter:brightness(1.07)}.btn.secondary{background:var(--surface);color:var(--text);border:1px solid var(--line)}.btn.small{padding:8px 12px;font-size:13px}.hero{padding:65px 0 45px}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:40px}.eyebrow{display:inline-block;border:1px solid #11b98155;background:#11b98114;color:var(--accent);padding:6px 12px;border-radius:99px;font-size:13px;font-weight:700}.hero h1{font-size:clamp(36px,5vw,59px);line-height:1.2;letter-spacing:-1px;margin:18px 0}.gradient-text{background:linear-gradient(90deg,#6366f1,#a855f7);-webkit-background-clip:text;background-clip:text;color:transparent}.hero p,.muted{color:var(--muted)}.hero p{font-size:17px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0}.trust{display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:13px}.trust b{color:var(--text)}.hero-art{min-height:370px;border-radius:30px;background:radial-gradient(circle at 20% 20%,#a5b4fc,transparent 35%),radial-gradient(circle at 80% 80%,#c4b5fd,transparent 36%),linear-gradient(135deg,#e0e7ff,#f5f3ff);display:grid;place-items:center;position:relative;overflow:hidden}.learn-card{z-index:1;width:min(320px,82%);padding:24px;border-radius:24px;background:white;color:#18213b;box-shadow:0 24px 60px #312e8140;transform:rotate(-2deg)}.learn-card h3{margin:8px 0}.progress{height:8px;background:#eef0ff;border-radius:20px;overflow:hidden}.progress span{display:block;width:72%;height:100%;background:linear-gradient(90deg,#6366f1,#a855f7)}.lesson{border-top:1px solid #edf0f6;padding:10px 0;font-size:13px}.float-tag{position:absolute;background:white;color:#202944;padding:11px 14px;border-radius:14px;box-shadow:var(--shadow);font-weight:700;font-size:13px}.tag1{top:14%;left:4%}.tag2{right:4%;bottom:14%}.section{padding:50px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:24px}.section h2{font-size:clamp(26px,3vw,37px);line-height:1.25;margin:10px 0}.searchbar{display:flex;gap:8px;max-width:560px;background:var(--surface);border:1px solid var(--line);border-radius:15px;padding:8px}.searchbar input{flex:1;min-width:0;border:0;outline:0;background:transparent;color:var(--text);padding:8px}.chips{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}.chip{border:1px solid var(--line);background:var(--surface);color:var(--muted);border-radius:99px;padding:8px 14px;cursor:pointer}.chip.active,.chip:hover{background:var(--primary);color:white;border-color:var(--primary)}.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.course{background:var(--surface);border:1px solid var(--line);border-radius:21px;overflow:hidden;box-shadow:var(--shadow)}.course-cover{height:155px;padding:19px;display:flex;align-items:end;justify-content:space-between;color:white;background:linear-gradient(135deg,#4f46e5,#9333ea)}.cover-green{background:linear-gradient(135deg,#059669,#14b8a6)}.cover-orange{background:linear-gradient(135deg,#ea580c,#f59e0b)}.cover-blue{background:linear-gradient(135deg,#0369a1,#6366f1)}.cover-pink{background:linear-gradient(135deg,#be185d,#8b5cf6)}.cover-dark{background:linear-gradient(135deg,#334155,#0f172a)}.cover-label{background:#ffffff28;border:1px solid #ffffff66;padding:4px 8px;border-radius:8px;font-size:12px}.course-body{padding:18px}.meta{display:flex;justify-content:space-between;gap:8px;color:var(--muted);font-size:12px}.course h3{font-size:18px;line-height:1.4;margin:10px 0}.course p{color:var(--muted);font-size:13px;min-height:44px}.course-bottom{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:14px;margin-top:13px}.price{font-size:20px;font-weight:800}.old-price{font-size:12px;color:var(--muted);text-decoration:line-through}.features{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.feature,.content-card,.quote,.stat{background:var(--surface);border:1px solid var(--line);border-radius:19px;padding:21px}.ficon{font-size:24px;margin-bottom:9px}.feature h3{font-size:16px;margin:0 0 6px}.feature p,.quote p{color:var(--muted);font-size:13px}.banner{padding:35px;border-radius:25px;background:linear-gradient(120deg,#4338ca,#7c3aed 65%,#a855f7);color:white;display:flex;justify-content:space-between;align-items:center;gap:20px}.banner h2{margin:0 0 8px}.banner p{margin:0;color:#e9e7ff}.banner .btn{background:white;color:#4f46e5}.page{padding:45px 0;min-height:58vh}.page-title{margin-bottom:24px}.page-title h1{font-size:clamp(30px,4vw,44px);margin:8px 0}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.field{display:flex;flex-direction:column;gap:7px;margin-bottom:12px}.field label{font-weight:700;font-size:13px}.field input,.field textarea,.field select{width:100%;border:1px solid var(--line);border-radius:12px;padding:12px;background:var(--bg);color:var(--text)}.field.full{grid-column:1/-1}.notice{padding:12px 15px;border-radius:12px;margin-top:15px}.success{background:#dcfce7;color:#166534}.error{background:#fee2e2;color:#991b1b}.empty{text-align:center;padding:35px;color:var(--muted)}.dashboard-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.stat strong{font-size:28px;display:block}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:12px;border-bottom:1px solid var(--line);vertical-align:top}th{font-size:13px;color:var(--muted)}.badge{display:inline-block;border-radius:99px;padding:4px 9px;font-size:12px;background:#e0e7ff;color:#3730a3}.footer{margin-top:35px;background:var(--surface);border-top:1px solid var(--line);padding:40px 0 18px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:25px}.footer h4{margin:0 0 12px}.footer p,.footer a{font-size:13px;color:var(--muted)}.footer a{display:block;margin:6px 0}.copyright{border-top:1px solid var(--line);margin-top:25px;padding-top:15px;color:var(--muted);font-size:12px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}.admin-nav{display:flex;gap:8px;flex-wrap:wrap;margin:15px 0 22px}.admin-nav a{padding:8px 12px;background:var(--surface);border:1px solid var(--line);border-radius:10px;font-size:13px}.admin-nav a:hover{border-color:var(--primary)}.danger{background:#b91c1c}.hint{font-size:12px;color:var(--muted)}@media(max-width:950px){.navlinks{display:none;position:absolute;top:76px;left:0;right:0;padding:20px 4%;background:var(--surface);border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start}.navlinks.open{display:flex}.menu-btn{display:grid}.hero-grid{grid-template-columns:1fr}.course-grid{grid-template-columns:repeat(2,1fr)}.features{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.nav{gap:8px;min-height:68px}.brand{font-size:16px}.logo{width:36px;height:36px}.navactions{margin-left:auto}.hero{padding:40px 0 25px}.hero h1{letter-spacing:0}.hero-art{min-height:300px}.section{padding:35px 0}.section-head{align-items:flex-start;flex-direction:column}.course-grid,.features,.footer-grid,.form-grid,.dashboard-stats{grid-template-columns:1fr}.field.full{grid-column:auto}.banner{align-items:flex-start;flex-direction:column;padding:25px}.course-cover{height:145px}.copyright{display:block}.navactions .secondary{display:none}}