/* =====================================================================
   MCA ACADEMY STORE - Udemy-style marketplace (dark red + dark blue)
   ===================================================================== */
:root{
   --blue:#0a1a3d; --blue2:#122a5e; --blue3:#1d3f86;
   --red:#7a0c14; --red2:#b01a28; --gold:#e0a91f; --green:#16a05a;
   --bg:#f7f8fc; --card:#fff; --ink:#0f1a33; --muted:#5c6684; --line:#e7eaf4;
   --radius:14px; --shadow:0 1px 2px rgba(10,26,61,.06);
}
*{box-sizing:border-box}
.st{margin:0;background:var(--bg);color:var(--ink);font-family:"Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;font-size:15px;min-height:100vh}
.st a{color:inherit;text-decoration:none}
.st button{font-family:inherit;cursor:pointer}
.st-wrap{max-width:1240px;margin:0 auto;padding:0 24px}
.st-empty{text-align:center;color:var(--muted);padding:40px 0}
.st-empty.big{padding:70px 0;font-size:17px}
.st-empty.big i{font-size:40px;display:block;margin-bottom:14px;opacity:.5}
.muted{color:var(--muted)}

#st-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:1000;pointer-events:none}
#st-progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--red2),var(--gold),var(--blue3));transition:width .3s ease,opacity .3s;opacity:0}
#st-progress.on span{opacity:1}

/* ---------------- header ---------------- */
.st-head{background:var(--blue);color:#fff;position:sticky;top:0;z-index:80;border-bottom:1px solid rgba(255,255,255,.12)}
.st-bar{max-width:1240px;margin:0 auto;padding:0 20px;display:flex;align-items:center;gap:16px;height:64px}
.st-logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:19px;color:#fff;white-space:nowrap}
.st-logo span{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--red2),var(--red));display:grid;place-items:center;font-size:16px}
.st-logo em{font-style:normal;color:var(--gold)}
.st-logo.light{color:var(--ink)}
.st-burger{display:none;background:none;border:0;color:#fff;font-size:19px}
.st-cats-wrap{position:relative}
.st-link{background:none;border:0;color:#e7ecff;font-size:14px;font-weight:600;padding:8px 4px;white-space:nowrap}
.st-search{flex:1;max-width:640px;background:#fff;border-radius:24px;display:flex;align-items:center;padding:0 6px 0 16px;height:42px}
.st-search i{color:var(--muted)}
.st-search input{flex:1;border:0;outline:0;padding:0 10px;font-size:14px;color:var(--ink);background:transparent}
.st-hide-m{white-space:nowrap}
.st-cart{position:relative;color:#fff;font-size:19px;display:grid;place-items:center;width:38px}
.st-cart b{position:absolute;top:-4px;right:-2px;background:var(--red2);color:#fff;font-size:10px;font-weight:800;border-radius:20px;padding:1px 5px;min-width:16px;text-align:center}
.st-icon{background:none;border:0;color:#fff;font-size:17px;width:36px;height:36px;border-radius:50%;display:grid;place-items:center}
.st-icon:hover{background:rgba(255,255,255,.1)}
.st-btn{border:0;border-radius:10px;padding:9px 18px;font-weight:700;font-size:14px;display:inline-flex;align-items:center;gap:8px;transition:filter .2s,background .2s}
.st-btn.solid{background:linear-gradient(135deg,var(--red2),var(--red));color:#fff}
.st-btn.solid:hover{filter:brightness(1.12)}
.st-btn.ghost{background:transparent;border:1.5px solid currentColor;color:inherit}
.st-btn.full{width:100%;justify-content:center}
.st-btn.big{padding:13px 26px;font-size:15px}
.st-user,.st-lang{position:relative}
.st-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--gold),#b78300);color:#3a2a00;border:0;font-weight:800;display:grid;place-items:center}
.st-drop{position:absolute;top:120%;left:0;background:var(--card);color:var(--ink);border-radius:12px;border:1px solid var(--line);min-width:220px;padding:8px;opacity:0;pointer-events:none;transform:translateY(-6px);transition:.2s;z-index:60;max-height:70vh;overflow:auto}
.st-drop.right{left:auto;right:0}
.st-cats-wrap:hover .st-drop,.st-lang:hover .st-drop,.st-user:hover .st-drop{opacity:1;pointer-events:auto;transform:none}
.st-drop a{display:flex;justify-content:space-between;padding:9px 12px;border-radius:8px;font-size:14px;color:var(--ink)}
.st-drop a:hover{background:var(--bg)}
.st-drop a.on{color:var(--red2);font-weight:700}
.st-drop small{color:var(--muted)}
.st-drop .st-none{padding:9px 12px;color:var(--muted);display:block}
.st-uhead{padding:8px 12px 10px;border-bottom:1px solid var(--line);margin-bottom:6px}
.st-uhead small{display:block;color:var(--muted)}
.st-sub{background:var(--blue2);display:flex;gap:4px;overflow-x:auto;padding:0 20px}
.st-sub a{color:#c7d3fb;font-size:13px;padding:10px 12px;white-space:nowrap}
.st-sub a:hover{color:#fff}
.st-mobile{position:fixed;top:0;left:0;bottom:0;width:78%;max-width:300px;background:#fff;z-index:200;transform:translateX(-105%);transition:transform .3s;padding:70px 20px;display:flex;flex-direction:column;gap:4px;border-right:1px solid var(--line)}
.st-mobile.open{transform:none}
.st-mobile a{padding:12px 8px;border-bottom:1px solid var(--line);font-weight:600}

/* ---------------- hero ---------------- */
.hero{background:radial-gradient(1100px 420px at 15% -10%,#173166 0%,var(--blue) 45%,#4a0a12 140%);color:#fff;padding:64px 0 76px;overflow:hidden;position:relative}
.hero-in{display:flex;align-items:center;gap:40px;position:relative}
.hero-text{flex:1;max-width:560px}
.hero-text h1{font-size:2.5rem;line-height:1.15;margin:0 0 16px;font-weight:800;letter-spacing:-.01em}
.hero-text p{color:#c7d3fb;font-size:1.05rem;margin:0 0 26px}
.hero-search{background:#fff;border-radius:30px;display:flex;padding:5px;max-width:460px}
.hero-search input{flex:1;border:0;outline:0;padding:10px 16px;border-radius:30px;font-size:15px}
.hero-search button{background:linear-gradient(135deg,var(--red2),var(--red));border:0;color:#fff;width:44px;border-radius:50%;font-size:16px}
.hero-art{flex:1;position:relative;min-height:260px;display:none}
.orb{position:absolute;border-radius:50%;filter:blur(2px);opacity:.5}
.orb.o1{width:220px;height:220px;background:radial-gradient(circle,var(--red2),transparent 70%);top:-30px;right:60px}
.orb.o2{width:160px;height:160px;background:radial-gradient(circle,var(--gold),transparent 70%);bottom:-10px;right:220px}
.hero-card{position:absolute;background:rgba(255,255,255,.1);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.2);border-radius:16px;padding:16px 20px;top:20px;right:40px;animation:floaty 5s ease-in-out infinite}
.hero-card.two{top:150px;right:180px;animation-delay:1.2s}
.hero-card i{font-size:20px;color:var(--gold);display:block;margin-bottom:6px}
.hero-card b{font-size:22px;display:block}
.hero-card span{font-size:12px;color:#c7d3fb}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@media(min-width:920px){.hero-art{display:block}}

/* trust row */
.trust{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:-40px auto 30px;position:relative;z-index:3}
.trust>div{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:var(--shadow);display:flex;gap:14px;align-items:flex-start}
.trust i{font-size:22px;color:var(--red2);width:30px}
.trust b{display:block;margin-bottom:2px}
.trust span{color:var(--muted);font-size:13px}

/* ---------------- blocks / grids ---------------- */
.block{margin:44px auto}
.block-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:18px}
.block-head h2{font-size:1.4rem;margin:0}
.block-head a{color:var(--red2);font-weight:700;font-size:14px;white-space:nowrap}
.cgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cgrid.three{grid-template-columns:repeat(3,1fr)}
.cgrid.small{grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px}

.reveal{opacity:0;transform:translateY(14px);animation:rise .5s cubic-bezier(.2,.7,.2,1) forwards;animation-delay:calc(var(--i,0)*70ms)}
@keyframes rise{to{opacity:1;transform:none}}

.ccard{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:border-color .2s}
.ccard:hover{border-color:var(--blue3)}
.ccard-img{position:relative;aspect-ratio:16/9;background:var(--blue);overflow:hidden}
.ccard-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.ccard:hover .ccard-img img{transform:scale(1.06)}
.tag{position:absolute;top:10px;left:10px;background:#fff;color:var(--ink);font-size:11px;font-weight:800;padding:3px 9px;border-radius:6px;text-transform:uppercase}
.tag.best{background:var(--gold);color:#3a2a00}
.ccard-body{padding:14px 16px 16px}
.ccard-body h3{margin:0 0 4px;font-size:15px;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.6em}
.by{color:var(--muted);font-size:12.5px;margin:0 0 6px}
.meta{color:var(--muted);font-size:12.5px;margin:4px 0}
.price{font-weight:800;font-size:16px;margin:6px 0 0}
.price .owned{color:var(--green);font-size:13px}

.rate{display:flex;align-items:center;gap:6px;font-size:13px}
.rate b{color:#8a5a00}
.rate.light b{color:var(--gold)}
.rate small{color:var(--muted)}
.stars{--full:#e0a91f;--empty:#d7dbea;display:inline-block;width:70px;height:13px;background:linear-gradient(90deg,var(--full) var(--p),var(--empty) var(--p));-webkit-mask:radial-gradient(circle closest-side,#000 98%,transparent) 0/20% 100% repeat-x;mask:radial-gradient(circle closest-side,#000 98%,transparent) 0/20% 100% repeat-x}

.cat-tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cat-tiles a{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px 18px;display:flex;flex-direction:column;gap:8px;transition:border-color .2s}
.cat-tiles a:hover{border-color:var(--blue3)}
.cat-tiles i{font-size:22px;color:var(--red2)}
.cat-tiles small{color:var(--muted)}

.teach-cta{background:linear-gradient(120deg,var(--blue),var(--blue2) 60%,var(--red2));color:#fff;margin-top:50px}
.teach-cta .st-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:44px 24px;flex-wrap:wrap}
.teach-cta h2{margin:0 0 6px;font-size:1.5rem}
.teach-cta p{margin:0;color:#dfe6ff}

/* ---------------- listing page ---------------- */
.list-page{padding:30px 24px 60px}
.list-title{margin:0 0 4px;font-size:1.7rem}
.list-count{color:var(--muted);margin:0 0 22px}
.list-layout{display:grid;grid-template-columns:230px 1fr;gap:30px;align-items:start}
.filters details{border-bottom:1px solid var(--line);padding:12px 0}
.filters summary{font-weight:700;cursor:pointer;font-size:14px;list-style:none;display:flex;justify-content:space-between}
.filters summary::-webkit-details-marker{display:none}
.filters summary::after{content:"\\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:11px;color:var(--muted)}
.filters details[open] summary::after{content:"\\f077"}
.filters a{display:flex;justify-content:space-between;padding:6px 2px;font-size:13.5px;color:var(--ink)}
.filters a.on{color:var(--red2);font-weight:700}
.filters small{color:var(--muted)}
.sortbar{display:flex;align-items:center;gap:10px;margin-bottom:18px;font-size:13.5px}
.sortbar select{border:1px solid var(--line);border-radius:8px;padding:8px 10px;background:var(--card);color:var(--ink)}

/* ---------------- course detail ---------------- */
.cd-hero{background:var(--blue);color:#fff;padding:40px 0}
.cd-hero-in{max-width:760px}
.crumbs{font-size:13px;color:#a9b8ea;margin-bottom:10px}
.crumbs a{color:#a9b8ea}
.cd-hero h1{margin:0 0 12px;font-size:1.9rem;line-height:1.2}
.cd-sub{color:#dfe6ff;margin:0 0 14px}
.cd-meta{display:flex;align-items:center;gap:16px;font-size:14px;color:#dfe6ff;flex-wrap:wrap}
.cd-by{color:#c7d3fb;margin:12px 0 0;font-size:13.5px}
.cd-layout{display:grid;grid-template-columns:1fr 340px;gap:34px;padding:34px 24px 60px;align-items:start}
.box{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px 24px;margin-bottom:20px}
.box h2{margin:0 0 14px;font-size:1.2rem;display:flex;align-items:center;gap:10px;justify-content:space-between}
.included ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.included li{display:flex;gap:10px;align-items:center;font-size:14px}
.included i{color:var(--red2);width:18px}
.acc-row{display:flex;align-items:center;gap:12px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px}
.acc-row:last-child{border:0}
.acc-row i{color:var(--muted);width:16px}
.acc-row small{margin-left:auto;color:var(--muted)}
.desc{white-space:pre-line;line-height:1.7;color:#2b3552}
.instructor .inst{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.instructor .inst img{width:56px;height:56px;border-radius:50%;object-fit:cover;background:var(--blue)}
.instructor .inst span{display:block;color:var(--muted);font-size:13px}
.big-rate{font-size:14px;color:var(--muted);display:flex;align-items:center;gap:8px}
.ok-msg{color:var(--green);font-weight:600;margin:-6px 0 16px}
.rev-form{margin-bottom:22px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.rev-form label{font-weight:700;font-size:13px;display:block;margin-bottom:8px}
.star-input{display:flex;flex-direction:row-reverse;justify-content:flex-end;gap:4px;margin-bottom:12px}
.star-input input{display:none}
.star-input label{width:26px;height:26px;cursor:pointer;color:#d7dbea;font-size:22px}
.star-input label::before{content:"\\2605";font-family:inherit}
.star-input input:checked~label,.star-input label:hover,.star-input label:hover~label{color:var(--gold)}
.rev-form textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:10px 12px;min-height:70px;margin-bottom:12px;font:inherit}
.rev{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
.rev:last-child{border:0}
.rav{width:38px;height:38px;border-radius:50%;background:var(--blue3);color:#fff;display:grid;place-items:center;font-weight:800;flex:none}
.rev p{margin:6px 0 0;color:#2b3552;font-size:14px}
.rev small{color:var(--muted)}

.buy{position:sticky;top:80px}
.buy-card{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}
.buy-img{aspect-ratio:16/9;overflow:hidden}
.buy-img img{width:100%;height:100%;object-fit:cover}
.buy-body{padding:20px}
.buy-price{font-size:1.7rem;font-weight:800;margin:0 0 14px}
.buy-list{list-style:none;margin:16px 0 0;padding:0;display:flex;flex-direction:column;gap:9px}
.buy-list li{display:flex;gap:10px;font-size:13.5px;color:#2b3552}
.buy-list i{color:var(--red2);width:16px}
.js-cart-form{display:flex;flex-direction:column;gap:10px}

/* ---------------- cart / checkout ---------------- */
.cart-page,.checkout-page{padding:34px 24px 60px}
.cart-page h1,.checkout-page h1{margin:0 0 22px}
.cart-empty{text-align:center;padding:70px 20px;color:var(--muted)}
.cart-empty i{font-size:44px;color:var(--line);display:block;margin-bottom:16px}
.cart-empty i.ok{color:var(--green)}
.cart-empty h2{color:var(--ink);margin:0 0 8px}
.cart-empty p{margin:0 0 20px}
.cart-layout{display:grid;grid-template-columns:1fr 300px;gap:30px;align-items:start}
.cart-row,.order-row{display:flex;gap:16px;align-items:center;padding:16px 0;border-bottom:1px solid var(--line)}
.cart-row img,.order-row img{width:110px;aspect-ratio:16/9;object-fit:cover;border-radius:10px;flex:none}
.cart-row .grow a b{font-size:15px}
.cart-row .grow small{display:block;color:var(--muted);margin:2px 0 6px}
.cart-side{text-align:right;display:flex;flex-direction:column;align-items:flex-end;gap:8px}
.link-btn{background:none;border:0;color:var(--red2);font-size:13px;font-weight:600}
.cart-sum{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;position:sticky;top:80px}
.cart-sum .sum{font-size:1.6rem;font-weight:800;margin:6px 0 18px}
.pay-form{margin-top:20px}
.pay-form label{font-weight:700;font-size:13px;display:block;margin-bottom:10px}
.pay-methods{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px}
.pay-opt{border:1.5px solid var(--line);border-radius:12px;padding:12px 14px;display:flex;align-items:center;cursor:pointer;gap:10px}
.pay-opt input{accent-color:var(--red2)}
.pay-opt span{display:flex;flex-direction:column}
.pay-opt small{color:var(--muted)}
.pay-opt:has(input:checked){border-color:var(--red2);background:rgba(176,26,40,.05)}
.pay-instr{background:rgba(29,63,134,.07);border-radius:10px;padding:12px 14px;font-size:13.5px;margin:0 0 16px}
.pay-form input[type=text]{width:100%;border:1px solid var(--line);border-radius:10px;padding:11px 14px;margin-bottom:18px;font:inherit}

/* ---------------- auth ---------------- */
.auth-page{display:grid;place-items:center;padding:60px 20px 80px;min-height:60vh}
.auth-card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:34px;width:100%;max-width:400px;box-shadow:var(--shadow)}
.auth-card h1{margin:0 0 20px;font-size:1.5rem;text-align:center}
.auth-card label{font-size:13px;font-weight:700;color:var(--muted);display:block;margin:14px 0 6px}
.auth-card input{width:100%;border:1px solid var(--line);border-radius:10px;padding:11px 14px;font:inherit}
.auth-card .st-btn{margin-top:22px}
.auth-switch{text-align:center;margin:18px 0 0;font-size:13.5px;color:var(--muted)}
.auth-switch a{color:var(--red2);font-weight:700}
.err-msg{background:rgba(176,26,40,.08);color:var(--red2);padding:10px 14px;border-radius:10px;font-size:13.5px}

/* ---------------- my learning ---------------- */
.learn-page{padding:34px 24px 60px}
.tabs-bar{display:flex;gap:26px;border-bottom:1px solid var(--line);margin-bottom:26px}
.tabs-bar a{padding:10px 2px;font-weight:700;color:var(--muted);position:relative;display:flex;align-items:center;gap:8px}
.tabs-bar a.on{color:var(--ink)}
.tabs-bar a.on::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:3px;background:var(--red2);border-radius:3px}
.tabs-bar .pill{background:var(--red2);color:#fff;font-size:11px;border-radius:20px;padding:1px 7px}
.learn-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.learn-card{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .2s}
.learn-card:hover{border-color:var(--blue3)}
.learn-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.learn-body{padding:14px 16px}
.learn-body b{display:block;margin-bottom:2px}
.learn-body small{color:var(--muted)}
.pbar{background:var(--line);border-radius:20px;height:7px;margin:12px 0 8px;overflow:hidden}
.pbar i{display:block;height:100%;width:var(--w,0%);background:linear-gradient(90deg,var(--red2),var(--gold));border-radius:20px;transition:width 1s cubic-bezier(.3,.8,.2,1)}
.pct{font-size:12.5px;color:var(--muted);font-weight:700}
.order-list{display:flex;flex-direction:column}
.order-row .grow{flex:1}
.order-row .badge{margin-left:6px}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:20px;font-size:12px;font-weight:700}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.badge.paid,.badge.active,.badge.approved{background:rgba(22,160,90,.14);color:var(--green)}
.badge.pending{background:rgba(224,169,31,.18);color:#a87400}
.badge.rejected,.badge.blocked{background:rgba(176,26,40,.14);color:var(--red2)}

/* ---------------- footer ---------------- */
.st-foot{background:var(--blue);color:#c7d3fb;margin-top:60px;padding:50px 0 20px}
.st-foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.12)}
.st-foot-grid p{font-size:13.5px;margin-top:12px;max-width:320px}
.st-foot-grid h4{color:#fff;margin:0 0 12px;font-size:14px}
.st-foot-grid a{display:block;padding:5px 0;font-size:13.5px}
.st-foot-grid a:hover{color:#fff}
.st-copy{text-align:center;font-size:12.5px;padding-top:18px;color:#93a0c4}

/* ---------------- toast ---------------- */
#st-toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,140%);background:var(--ink);color:#fff;padding:13px 22px;border-radius:40px;font-size:14px;font-weight:600;display:flex;align-items:center;gap:10px;transition:transform .35s cubic-bezier(.2,1.2,.3,1);z-index:500}
#st-toast.show{transform:translate(-50%,0)}
#st-toast i{color:var(--green)}

/* ---------------- responsive ---------------- */
@media(max-width:1000px){
   .cgrid{grid-template-columns:repeat(2,1fr)}
   .cgrid.three,.cgrid.small{grid-template-columns:repeat(2,1fr)}
   .cat-tiles{grid-template-columns:repeat(2,1fr)}
   .trust{grid-template-columns:1fr}
   .list-layout,.cd-layout,.cart-layout{grid-template-columns:1fr}
   .buy{position:static}
   .learn-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:720px){
   .st-search,.st-cats-wrap,.st-hide-m{display:none}
   .st-burger{display:block}
   .st-bar{gap:10px}
   .hero-text h1{font-size:1.9rem}
   .cgrid{grid-template-columns:1fr 1fr;gap:12px}
   .learn-grid{grid-template-columns:1fr}
   .st-foot-grid{grid-template-columns:1fr;gap:22px}
   .pay-methods{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}