*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;background:#f7f8fc;color:#171923;line-height:1.55}a{text-decoration:none;color:inherit}.wrap{max-width:1120px;margin:auto;padding:0 20px}header{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid #e8eaf0}.head{height:68px;display:flex;align-items:center;justify-content:space-between}.logo{font-size:21px;font-weight:900;color:#6d28d9}.nav{display:flex;gap:24px;font-weight:700;font-size:14px}.hamb{display:none;background:none;border:0;font-size:25px}.hero{padding:72px 0 56px;background:linear-gradient(135deg,#f1eaff,#fff)}.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}.badge{display:inline-block;background:#ede9fe;color:#6d28d9;border-radius:999px;padding:6px 12px;font-size:13px;font-weight:800}.hero h1{font-size:clamp(36px,6vw,62px);line-height:1.04;margin:18px 0}.hero p{font-size:18px;color:#5b6170}.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:12px;padding:13px 19px;font-weight:800;cursor:pointer;background:#6d28d9;color:white}.btn.alt{background:#fff;color:#6d28d9;border:1px solid #ddd}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.card{background:#fff;border:1px solid #e7e8ef;border-radius:18px;padding:22px;box-shadow:0 10px 30px #1719230b}.price{font-size:40px;font-weight:900;color:#6d28d9}.section{padding:58px 0}.section h2{font-size:32px;margin:0 0 12px}.muted{color:#6b7280}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.lesson{overflow:hidden;padding:0}.lesson img{width:100%;height:180px;object-fit:cover;background:#eee}.lesson-body{padding:18px}.locked{filter:grayscale(.3)}.lockbox{text-align:center;padding:60px 20px}.form{max-width:520px;margin:50px auto}.input{width:100%;padding:13px 14px;border:1px solid #d9dce5;border-radius:10px;margin:7px 0 14px;font-size:16px}.notice{padding:13px;border-radius:10px;background:#f3f4f6;margin:12px 0}.success{background:#ecfdf5;color:#065f46}.error{background:#fef2f2;color:#991b1b}.player{background:#111;border-radius:16px;overflow:hidden}.player video{width:100%;display:block;max-height:620px}.thumb{position:relative}.thumb img{width:100%;height:340px;object-fit:cover}.thumb .play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:74px;height:74px;border-radius:50%;border:0;background:#6d28d9;color:#fff;font-size:28px;cursor:pointer}table{width:100%;border-collapse:collapse;background:#fff}th,td{padding:11px;border-bottom:1px solid #eee;text-align:left;font-size:13px}footer{background:#111827;color:#d1d5db;padding:42px 0;margin-top:50px}.foot{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.bottom{position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid #ddd;z-index:30;display:flex;justify-content:center}.bottom a{padding:10px 22px;font-size:12px;text-align:center;font-weight:700}.bottom span{display:block;font-size:18px}.admin-actions{display:flex;gap:7px;flex-wrap:wrap}.small{font-size:12px}.hidden{display:none!important}@media(max-width:800px){.nav{display:none}.hamb{display:block}.head{flex-direction:row-reverse}.hero-grid{grid-template-columns:1fr}.grid{grid-template-columns:1fr}.foot{grid-template-columns:1fr}.hero{padding-top:45px}.bottom a{padding:9px 13px}.thumb img{height:240px}}
/* UI feedback + loading */
button,.btn,a{transition:transform .15s ease,box-shadow .15s ease,opacity .15s ease,background .15s ease}
button:not(:disabled):active,.btn:active{transform:scale(.96)}
.btn:hover{transform:translateY(-1px);box-shadow:0 7px 18px rgba(109,40,217,.18)}
.btn:disabled{opacity:.7;cursor:not-allowed}
.btn.is-loading{display:inline-flex;gap:8px;align-items:center;justify-content:center}
.btn-spinner,.spinner{border:3px solid rgba(255,255,255,.35);border-top-color:currentColor;border-radius:50%;animation:spin .7s linear infinite}
.btn-spinner{width:16px;height:16px}
.global-loader{position:fixed;inset:0;background:rgba(247,248,252,.82);backdrop-filter:blur(4px);z-index:9999;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:.2s}
.global-loader.show{opacity:1;visibility:visible}
.loader-card{background:#fff;border:1px solid #e7e8ef;border-radius:16px;padding:22px 30px;box-shadow:0 15px 45px rgba(0,0,0,.12);display:flex;align-items:center;gap:13px;font-weight:800}
.loader-card .spinner{width:25px;height:25px;color:#6d28d9;border-color:#ddd;border-top-color:#6d28d9}
.mobile-nav{display:block}
#mobileNav{display:none!important}
#mobileNav.open{display:block!important;position:fixed;top:68px;left:0;right:0;z-index:19;background:#fff;border-bottom:1px solid #ddd;box-shadow:0 10px 25px rgba(0,0,0,.1)}
.mobile-nav-inner{display:flex;flex-direction:column}
.mobile-nav-inner a{padding:15px 20px;border-bottom:1px solid #eee;font-weight:800}
.hamb.active{transform:rotate(90deg)}
@keyframes spin{to{transform:rotate(360deg)}}
@media(max-width:800px){#mobileNav{display:none}.head{flex-direction:row}.hamb{display:block}}

/* Course card / description links */
.desc-link{color:#2563eb!important;text-decoration:underline;font-weight:700}
.course-card{padding:0;overflow:hidden;display:flex;flex-direction:column;height:100%}
.course-card .course-thumb{position:relative;background:#111;aspect-ratio:16/9;overflow:hidden}
.course-card .course-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s ease}
.course-card:hover .course-thumb img{transform:scale(1.035)}
.course-card .play-overlay{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:64px;height:64px;border-radius:50%;border:0;background:#6d28d9;color:#fff;font-size:25px;box-shadow:0 8px 25px rgba(0,0,0,.3);display:flex;align-items:center;justify-content:center}
.course-card .course-info{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.course-card .course-title{font-size:21px;line-height:1.25;margin:0 0 9px}
.course-card .course-description{color:#626978;margin:0 0 18px;line-height:1.55}
.course-card .watch-btn{margin-top:auto;width:100%}
.lesson-page-title{margin-bottom:18px}
.video-shell{background:#080808;border-radius:18px;overflow:hidden;box-shadow:0 14px 40px rgba(0,0,0,.16)}
.video-shell video{display:block;width:100%;max-height:650px;background:#000}
.video-loading{padding:28px;text-align:center;color:#fff;background:#111}
.video-error{padding:18px;background:#fff2f2;color:#991b1b;border-radius:0 0 12px 12px}
@media(max-width:800px){.course-card .course-info{padding:15px}.course-card .course-title{font-size:19px}.course-card .play-overlay{width:56px;height:56px}}