/* AMS Academy: look and feel of the original academy.amsol.ca (Eduma theme), rebuilt in plain CSS. */
:root{
  --yellow:#ffb606;--yellow-d:#e6a200;--red:#ec5252;--navy:#273044;--blue:#0b3c57;--foot:#0f2f40;
  --beige:#f3ebc8;--text:#666;--head:#333;--line:#e9e9e9;--soft:#f5f5f5;--radius:5px;
  --f-body:"Roboto","Noto Kufi Arabic",system-ui,sans-serif;--f-head:"Roboto Slab","Noto Kufi Arabic",Georgia,serif;--f-hero:"Poppins","Noto Kufi Arabic",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;font:15px/1.7 var(--f-body);color:var(--text);background:#fff;-webkit-font-smoothing:antialiased}
[lang=ar] body{font-family:"Noto Kufi Arabic","Roboto",sans-serif}
img{max-width:100%;height:auto}
a{color:var(--blue);text-decoration:none;transition:color .3s,background .3s,box-shadow .3s}
a:hover{color:var(--yellow-d)}
h1,h2,h3,h4{font-family:var(--f-head);color:var(--head);line-height:1.3;margin:0 0 .5em}
.wrap{width:min(1170px,100% - 30px);margin-inline:auto}
/* off-screen helpers must not use left:-9999px: in RTL pages that creates 10,000px of horizontal scroll */
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap}
.skip{position:absolute;inset-inline-start:-9999px;top:0}
.skip:focus{inset-inline-start:8px;top:8px;background:#fff;padding:8px 12px;z-index:100}
.ic{width:1.1em;height:1.1em;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;vertical-align:-.18em;flex:none}
.ic.sm{width:.8em;height:.8em}
:focus-visible{outline:2px solid var(--yellow);outline-offset:2px}

/* ---- top bar + header ---- */
/* The wrapper is what sticks to the top (pure CSS, no scripting needed). On the home page it has zero height and
   the header floats over the hero inside it. */
.header-wrap{position:sticky;top:0;z-index:50}
.site-header{background:rgba(243,235,200,.5);position:relative;backdrop-filter:blur(2px);transition:background .3s,box-shadow .3s}
.site-header.is-stuck{background:rgba(243,235,200,.97);box-shadow:0 4px 18px rgba(0,0,0,.14)}
.bar{display:flex;align-items:center;gap:22px;min-height:78px;flex-wrap:wrap}
.brand img{display:block;width:110px;height:auto}
#nav{display:flex;align-items:center;gap:6px;flex:1}
#nav>a,.dd>a{color:#000;padding:8px 12px;display:inline-flex;align-items:center;gap:4px;border-radius:var(--radius)}
#nav>a:hover,.dd>a:hover{color:var(--yellow-d)}
.dd{position:relative}
.dd-menu{display:none;position:absolute;inset-inline-start:0;top:100%;min-width:300px;background:#fff;list-style:none;margin:0;padding:8px 0;box-shadow:0 8px 30px rgba(0,0,0,.15);border-top:3px solid var(--yellow);z-index:40}
.dd:hover .dd-menu,.dd:focus-within .dd-menu{display:block;animation:fadeUp .25s both}
.dd-menu a{display:block;padding:8px 18px;color:#333;font-size:14px}
.dd-menu a:hover{background:var(--soft);color:var(--blue)}
.dd-menu .all a{font-weight:700;border-top:1px solid var(--line)}
.search{display:flex;align-items:center;border-bottom:1px solid #00000033;min-width:160px}
.search input{border:0;background:transparent;padding:6px 4px;font:inherit;color:#000;width:140px}
.search input:focus{outline:none}
.search button{background:none;border:0;cursor:pointer;color:#000;padding:4px}
.link-register{color:#000;padding:5px 6px}.link-register:hover{color:var(--yellow-d)}
.btn-login{background:var(--yellow);color:#fff;padding:5px 18px;border-radius:var(--radius);font-weight:500}
.btn-login:hover{background:var(--yellow-d);color:#fff}
.nav-toggle{display:none;background:none;border:0;font-size:26px;cursor:pointer;color:#000;margin-inline-start:auto}
.langsw{position:relative}
.langsw summary{list-style:none;cursor:pointer;padding:8px 10px;display:inline-flex;align-items:center;gap:4px;color:#000;border-radius:var(--radius)}
.langsw summary::-webkit-details-marker{display:none}
.langsw form{position:absolute;inset-inline-end:0;top:100%;background:#fff;box-shadow:0 8px 30px rgba(0,0,0,.15);min-width:150px;z-index:40;padding:6px 0;border-top:3px solid var(--yellow)}
.langsw form button,.langsw form a{display:block;width:100%;text-align:start;background:none;border:0;padding:8px 16px;font:inherit;color:#333;cursor:pointer}
.langsw form button:hover,.langsw form a:hover{background:var(--soft)}
.langsw form [aria-current]{font-weight:700;color:var(--blue)}

/* home: header floats over the slider like the original */
body.home .header-wrap{height:0}
body.home .site-header{position:absolute;inset-inline:0;top:0}

/* ---- hero slider ---- */
.hero{position:relative;height:600px;overflow:hidden;background:#222;color:#fff}
.slides,.slide{position:absolute;inset:0}
.slide{background:var(--bg) center/cover no-repeat;opacity:0;visibility:hidden;transition:opacity 1s ease,visibility 1s;display:flex;align-items:center}
.slide::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.55),rgba(0,0,0,.05) 70%)}
[dir=rtl] .slide::before{background:linear-gradient(270deg,rgba(0,0,0,.55),rgba(0,0,0,.05) 70%)}
.slide.is-active{opacity:1;visibility:visible}
.slide.is-active{animation:kenburns 9s ease-out both}
.hero .copy{position:relative;z-index:2;padding-top:70px}
.hero-title{font:600 clamp(30px,5vw,50px)/1.25 var(--f-hero);color:#fff;margin:0 0 14px;max-width:760px}
.hero-sub{font:300 clamp(15px,2vw,18px)/1.6 var(--f-hero);max-width:560px;margin:0 0 30px;color:#fff}
.btn-pill{display:inline-block;background:#fff;color:#202020;border-radius:40px;padding:17px 36px 15px;font-weight:500;text-transform:uppercase;letter-spacing:.5px;font-size:13px}
.btn-pill:hover{background:var(--yellow);color:#202020}
.slide .hero-title,.slide .hero-sub,.slide .btn-pill{opacity:0}
.slide.is-active .hero-title{animation:slideIn .9s .25s both cubic-bezier(.2,.7,.2,1)}
.slide.is-active .hero-sub{animation:slideIn .9s .55s both cubic-bezier(.2,.7,.2,1)}
.slide.is-active .btn-pill{animation:slideIn .9s .85s both cubic-bezier(.2,.7,.2,1)}
.hero-bullets{position:absolute;bottom:26px;inset-inline:0;display:flex;justify-content:center;gap:8px;z-index:3}
.hero-bullets button{width:12px;height:12px;border-radius:50%;border:2px solid #fff;background:transparent;padding:0;cursor:pointer;transition:background .3s,transform .3s}
.hero-bullets button.is-active{background:#fff;transform:scale(1.15)}
.hero-progress{position:absolute;bottom:0;inset-inline:0;height:5px;background:rgba(0,0,0,.15);z-index:3}
.hero-progress i{display:block;height:100%;background:rgba(255,255,255,.55);width:0;transform-origin:left}
[dir=rtl] .hero-progress i{transform-origin:right}
.hero-progress.run i{animation:progress var(--dur,6s) linear forwards}

/* ---- stats bar ---- */
.stats{background:var(--blue);color:#fff;padding:40px 0}
.stats .wrap{display:grid;grid-template-columns:repeat(3,1fr)}
.stats .wrap>div{display:flex;gap:16px;align-items:center;padding:6px 30px}
.stats .wrap>div+div{border-inline-start:1px solid #ffffff61}
.stats .ic{width:48px;height:48px;stroke-width:1.5}
.stats h3{color:#fff;font:600 15px var(--f-head);margin:0 0 4px}
.stats p{margin:0;font-size:14px;line-height:20px;color:#ffffffd9}

/* ---- sections ---- */
.section{padding:64px 0 40px}
.sec-head{text-align:center;margin-bottom:34px}
.sec-head .over{display:block;text-transform:uppercase;font-weight:300;font-size:14px;letter-spacing:.5px;color:var(--text)}
.sec-head h2{font-size:32px;margin:6px 0 0;position:relative;padding-bottom:16px}
.sec-head h2::after{content:"";position:absolute;bottom:0;left:50%;width:48px;height:3px;background:var(--yellow);transform:translateX(-50%)}
.sec-head.light .over,.sec-head.light h2{color:#fff}
.sec-head.light h2::after{background:#fff}
.center{text-align:center;margin-top:30px}
.btn-yellow{display:inline-block;background:var(--yellow);color:#fff;border:0;border-radius:var(--radius);padding:11px 26px;font:500 14px var(--f-body);text-transform:uppercase;letter-spacing:.5px;cursor:pointer}
.btn-yellow:hover{background:var(--yellow-d);color:#fff;box-shadow:0 6px 16px rgba(255,182,6,.4)}

/* course cards */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:30px}
.course-card{background:#fff;border:1px solid var(--line);border-radius:3px;overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .3s,transform .3s}
.course-card:hover{box-shadow:0 10px 30px rgba(0,0,0,.12);transform:translateY(-4px)}
.course-card .thumb{display:block;overflow:hidden;aspect-ratio:4/3;background:var(--navy)}
.course-card .thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s}
.course-card:hover .thumb img{transform:scale(1.07)}
.course-card .ph{display:flex;height:100%;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--blue),#1a5a80)}
.course-card .ph img{width:120px;height:auto;object-fit:contain}
.course-card .body{padding:18px 20px 14px;display:flex;flex-direction:column;gap:10px;flex:1}
.author{display:flex;gap:10px;align-items:center;font-size:14px;color:var(--head)}
.author .avatar{width:40px;height:40px;border-radius:50%;background:var(--blue);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:700;overflow:hidden}
.author .avatar img{width:100%;height:100%;object-fit:cover}
.author .who small{display:block;color:#999;font-size:12px;line-height:1.1}
.course-card h3{font-size:16px;font-weight:600;margin:0;line-height:1.4}
.course-card h3 a{color:var(--head)}.course-card h3 a:hover{color:var(--yellow-d)}
.course-card .meta{margin-top:auto;border-top:1px solid var(--line);padding-top:10px;display:flex;gap:16px;color:#999;font-size:14px;align-items:center}
.course-card .meta .price{margin-inline-start:auto;color:var(--red);font-weight:700}

/* CTA */
.cta{background:var(--navy);color:#fff}
.cta .wrap{display:flex;align-items:center;gap:30px;justify-content:center;flex-wrap:wrap;min-height:152px}
.cta img{width:200px;height:auto;margin-block:-30px}
.cta p{font:400 24px var(--f-head);margin:0}

/* categories */
.categories{background:var(--red);padding:44px 0 30px}
.cat-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px}
.cat-grid a{display:block;background:rgba(255,255,255,.12);color:#fff;padding:16px 20px;border-radius:3px;border-inline-start:3px solid #fff;transition:background .3s,transform .3s}
.cat-grid a:hover{background:rgba(255,255,255,.28);transform:translateY(-3px);color:#fff}
.cat-grid .t{display:block;font:600 16px var(--f-head)}
.cat-grid .n{font-size:13px;opacity:.9}

/* events */
.events-sec{background:var(--soft)}
.events{display:grid;gap:14px;max-width:760px;margin-inline:auto}
.event{display:flex;gap:18px;align-items:center;background:#fff;padding:12px 18px;border-radius:3px;color:var(--text);transition:box-shadow .3s,transform .3s}
.event:hover{box-shadow:0 8px 24px rgba(0,0,0,.1);transform:translateX(4px);color:var(--text)}
[dir=rtl] .event:hover{transform:translateX(-4px)}
.event .date{background:var(--navy);color:#fff;text-align:center;width:64px;padding:8px 4px;border-radius:3px;text-transform:uppercase;font-size:12px;line-height:1.2;flex:none}
.event .date b{display:block;color:var(--yellow);font:700 24px var(--f-head)}
.event .info strong{display:block;color:var(--head);font:600 16px var(--f-head)}
.event .info small{color:#999;display:flex;gap:14px;flex-wrap:wrap;margin-top:2px}

/* instructors */
.inst-scroller{position:relative}
.inst-grid{display:flex;gap:26px;overflow-x:auto;scroll-snap-type:x proximity;scroll-behavior:smooth;padding:8px 4px 18px;text-align:center;scrollbar-width:thin;-webkit-overflow-scrolling:touch}
.inst-grid:focus-visible{outline:2px solid var(--yellow);outline-offset:2px}
.inst{flex:0 0 170px;scroll-snap-align:start;color:var(--text)}
.inst>a:first-child{color:var(--text);display:block}
.inst img{width:150px;height:150px;border-radius:50%;object-fit:cover;border:4px solid #fff;box-shadow:0 4px 16px rgba(0,0,0,.15);transition:transform .4s,box-shadow .4s}
.inst>a:first-child:hover img{transform:scale(1.06);box-shadow:0 10px 26px rgba(0,0,0,.25)}
.inst-nav{position:absolute;top:70px;z-index:2;width:38px;height:38px;border-radius:50%;border:0;background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.25);cursor:pointer;color:var(--head);display:grid;place-items:center}
.inst-nav:hover{background:var(--yellow);color:#fff}
.inst-nav.prev{inset-inline-start:-10px}.inst-nav.next{inset-inline-end:-10px}
.inst-nav .ic{width:20px;height:20px}.inst-nav.prev .ic{transform:rotate(90deg)}.inst-nav.next .ic{transform:rotate(-90deg)}
[dir=rtl] .inst-nav.prev .ic{transform:rotate(-90deg)}[dir=rtl] .inst-nav.next .ic{transform:rotate(90deg)}
.inst-nav[hidden]{display:none}
.ic-fill{fill:currentColor;stroke:none}
.in-link{display:inline-flex;margin-top:8px;color:#0a66c2;width:30px;height:30px;align-items:center;justify-content:center;border-radius:50%;transition:background .2s,color .2s}
.in-link:hover{background:#0a66c2;color:#fff}.in-link .ic{width:18px;height:18px}
.in-btn{background:#0a66c2;display:inline-flex;gap:8px;align-items:center}.in-btn:hover{background:#084e96}
@media (prefers-reduced-motion:reduce){.inst-grid{scroll-behavior:auto}}
.inst strong{display:block;margin-top:12px;color:var(--head);font:600 15px var(--f-head)}
.inst small{display:block;font-size:13px;line-height:1.4}

/* partners marquee */
.partners{padding:56px 0 30px;background:#fff;overflow:hidden}
.marquee{direction:ltr;overflow:hidden;mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.track{display:flex;gap:56px;align-items:center;width:max-content;animation:marquee 40s linear infinite}
.marquee:hover .track{animation-play-state:paused}
.track img{height:64px;width:auto;max-width:200px;object-fit:contain;filter:grayscale(1);opacity:.75;transition:filter .3s,opacity .3s}
.track img:hover{filter:none;opacity:1}

/* subscribe */
.subscribe{background:var(--blue);color:#fff;text-align:center;padding:56px 0}
.subscribe h2{color:#fff;margin-bottom:6px}.subscribe p{margin:0 0 22px;color:#ffffffd9}
.subscribe form{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.subscribe input[type=email]{padding:12px 16px;border:0;border-radius:var(--radius);min-width:280px;font:inherit}
.hp{position:absolute;inset-inline-start:-9999px;width:1px;height:1px;opacity:0}

/* testimonials */
.quotes{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.quotes blockquote{margin:0;background:#fff;border:1px solid var(--line);border-top:3px solid var(--yellow);padding:22px;border-radius:3px;display:flex;flex-direction:column;gap:12px}
.quotes blockquote p{margin:0;font-style:italic}
.quotes footer strong{display:block;color:var(--head);font-family:var(--f-head)}
.quotes footer small{color:#999;font-size:13px;line-height:1.4;display:block}

/* contact row + footer */
.contact-row{background:#fff;padding:44px 0 36px;border-top:1px solid var(--line)}
.contact-row .wrap{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.contact-row .wrap>div{display:flex;gap:12px;align-items:flex-start;color:var(--head)}
.contact-row .ic{width:26px;height:26px;color:var(--yellow);margin-top:3px}
.contact-row span{color:#999;font-size:14px}
.site-footer{background:var(--foot);color:#ffffffb3;padding-top:55px}
.site-footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1fr;gap:34px;padding-bottom:44px}
.site-footer h2{font:600 17px var(--f-head);color:#fff;margin:14px 0 8px}
.site-footer h3{font:600 17px var(--f-head);color:#fff;margin-bottom:14px}
.site-footer ul{list-style:none;margin:0;padding:0}.site-footer li{margin-bottom:8px}
.site-footer a{color:#ffffffb3}.site-footer a:hover{color:var(--yellow)}
.site-footer .copy{background:#0a2331;padding:16px 0;font-size:14px;text-align:center}

/* ---- inner pages ---- */
.page-banner{background:var(--navy) linear-gradient(135deg,var(--navy),#1b2336);color:#fff;padding:46px 0 38px;position:relative;overflow:hidden}
.page-banner h1{color:#fff;font-size:34px;margin:0}
.page-banner p{margin:6px 0 0;color:#ffffffb3}
.page-banner::after{content:"";position:absolute;inset-inline-end:-60px;top:-60px;width:260px;height:260px;border-radius:50%;background:rgba(255,182,6,.12)}
main.page{padding-block:36px 56px;min-height:46vh}
main.page h2{font-size:24px}
.tag{display:inline-block;font-size:12px;border:1px solid var(--line);border-radius:999px;padding:1px 10px;color:#888;margin-inline-end:4px;background:#fff}
a.tag:hover{border-color:var(--yellow);color:var(--yellow-d)}
.msg{padding:10px 14px;border-radius:var(--radius);background:var(--soft);border:1px solid var(--line);margin:14px 0}
.msg.success{background:#e8f6ee;border-color:#b6e0c7}.msg.error{background:#fdeaea;border-color:#f3b9b9}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.filters input,.filters select{padding:9px 12px;border:1px solid #ddd;border-radius:var(--radius);font:inherit;background:#fff}
.filters input{flex:1;min-width:200px}
.btn{display:inline-block;background:var(--yellow);color:#fff;border:0;border-radius:var(--radius);padding:10px 22px;font:500 14px var(--f-body);cursor:pointer}
.btn:hover{background:var(--yellow-d);color:#fff}
.btn.alt{background:var(--blue)}.btn.alt:hover{background:#08293c}
form.stack{max-width:420px}form.stack p{margin:14px 0}form.stack label{display:block;font-weight:500;margin-bottom:4px;color:var(--head)}
form.stack input{width:100%;padding:10px;border:1px solid #ddd;border-radius:var(--radius);font:inherit}
.social{display:grid;gap:10px;max-width:420px;margin-bottom:10px}
.social form{margin:0}.social .btn{width:100%;text-align:center}
.muted{color:#999}
details.resend{margin-top:22px;max-width:420px}details.resend summary{cursor:pointer;color:var(--blue)}
.progress{height:8px;background:var(--line);border-radius:6px;overflow:hidden}.progress i{display:block;height:100%;background:var(--yellow)}
table{border-collapse:collapse;width:100%;background:#fff}th,td{padding:10px;border-bottom:1px solid var(--line);text-align:start}
.outline ol{padding-inline-start:22px}
.cert{max-width:680px;margin:20px auto;border:2px solid var(--yellow);border-radius:6px;padding:30px;background:#fff;box-shadow:0 10px 30px rgba(0,0,0,.08)}
.status{display:inline-block;padding:3px 14px;border-radius:999px;font-weight:700;color:#fff}
.status.valid{background:#1a7f4b}.status.revoked,.status.expired{background:#b3261e}
dl.facts{display:grid;grid-template-columns:max-content 1fr;gap:8px 20px}dl.facts dt{color:#999}dl.facts dd{margin:0;font-weight:600;color:var(--head)}
.team-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:24px}
.team-card{background:#fff;border:1px solid var(--line);text-align:center;padding:20px;border-radius:3px;color:var(--text);transition:box-shadow .3s,transform .3s}
.team-card:hover{box-shadow:0 10px 30px rgba(0,0,0,.12);transform:translateY(-4px)}
.team-card img{width:120px;height:120px;border-radius:50%;object-fit:cover}
.team-card strong{display:block;color:var(--head);font-family:var(--f-head);margin-top:10px}

/* ---- learning screens ---- */
.learn{display:grid;grid-template-columns:320px 1fr;gap:30px;align-items:start}
.outline-nav{background:var(--soft);border:1px solid var(--line);padding:16px;border-radius:3px;position:sticky;top:96px;max-height:calc(100vh - 120px);overflow:auto}
.outline-nav h2{font-size:17px;margin:0 0 10px}.outline-nav h2 a{color:var(--head)}
.outline-nav h3{font-size:14px;margin:16px 0 6px;color:var(--blue)}
.outline-nav ol{list-style:none;margin:0;padding:0}
.outline-nav li a{display:flex;gap:8px;align-items:baseline;padding:6px 8px;border-radius:3px;color:var(--text);font-size:14px}
.outline-nav li a:hover{background:#fff}
.outline-nav li.current a{background:#fff;color:var(--head);font-weight:500;box-shadow:inset 3px 0 0 var(--yellow)}
[dir=rtl] .outline-nav li.current a{box-shadow:inset -3px 0 0 var(--yellow)}
.outline-nav .tick{color:#bbb;flex:none}.outline-nav li.done .tick{color:#1a7f4b;font-weight:700}
.lesson .content{font-size:16px;line-height:1.8}
.lesson .content img{max-width:100%;height:auto}
.video{position:relative;aspect-ratio:16/9;width:100%;background:#000;margin-bottom:18px;border-radius:3px;overflow:hidden}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
video.video{position:static}
/* clean YouTube player: the iframe is taller than the frame so YouTube's title bar, logo and "More videos" fall outside it */
.yt-clean.is-ready iframe{inset:auto;left:0;top:-72px;width:100%;height:calc(100% + 150px)}
.yt-clean .yt-shield{position:absolute;inset:0 0 44px 0;cursor:pointer;z-index:2}
.yt-clean.is-poster .yt-shield{inset:0}
.yt-clean .yt-bar{position:absolute;left:0;right:0;bottom:0;z-index:3;display:flex;align-items:center;gap:10px;padding:6px 12px;direction:ltr;
  background:linear-gradient(transparent,rgba(0,0,0,.75));color:#fff;opacity:1;transition:opacity .25s}
.yt-clean.is-playing:not(:hover):not(:focus-within) .yt-bar{opacity:0}
.yt-clean .yt-btn{background:none;border:0;color:#fff;font-size:18px;line-height:1;cursor:pointer;padding:6px 8px;border-radius:4px}
.yt-clean .yt-btn:hover,.yt-clean .yt-btn:focus-visible{background:rgba(255,255,255,.22)}
.yt-clean .yt-seek{flex:1;accent-color:var(--yellow);cursor:pointer;min-width:0}
.yt-clean .yt-time{font:500 13px var(--f-body);white-space:nowrap;min-width:84px;text-align:center}
.yt-clean .yt-shield{background:#000 center/cover no-repeat}
.yt-clean:not(.is-poster) .yt-shield{background:transparent!important}
.yt-clean:not(.is-poster) .yt-bigplay{display:none}
.yt-clean .yt-bigplay{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:68px;height:68px;border-radius:50%;background:var(--yellow);color:#fff;display:grid;place-items:center;font-size:28px;padding-inline-start:5px;box-shadow:0 6px 22px rgba(0,0,0,.4);transition:transform .2s}
.yt-clean .yt-shield:hover .yt-bigplay{transform:translate(-50%,-50%) scale(1.1)}
.yt-clean:fullscreen{width:100%;height:100%;aspect-ratio:auto;border-radius:0}
.lesson-nav{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px;padding-top:18px;border-top:1px solid var(--line);align-items:center}
.lesson-nav form{margin:0}
.timer{font:700 22px var(--f-head);color:var(--yellow)}.timer.low{color:#ff7b7b;animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.5}}
.quiz .question,.question.review{border:1px solid var(--line);border-radius:3px;padding:16px 18px;margin:0 0 18px;background:#fff}
.question legend{font-weight:500;color:var(--head);padding:0 8px;max-width:100%}
.question .num{display:inline-flex;width:26px;height:26px;border-radius:50%;background:var(--navy);color:#fff;align-items:center;justify-content:center;font-size:13px;margin-inline-end:6px}
.choice{display:flex;gap:10px;align-items:flex-start;padding:7px 4px;cursor:pointer}
.quiz input[type=text],.quiz textarea{width:100%;padding:10px;border:1px solid #ddd;border-radius:var(--radius);font:inherit}
.question.review.ok{border-inline-start:4px solid #1a7f4b}.question.review.bad{border-inline-start:4px solid #b3261e}
.choice.is-correct{color:#1a7f4b;font-weight:500}.choice.is-wrong{color:#b3261e;text-decoration:line-through}
.result-card{max-width:520px;margin:0 auto 30px;text-align:center;border:1px solid var(--line);border-top:4px solid var(--yellow);padding:26px;background:#fff;border-radius:3px}
.result-card .score{font:700 54px var(--f-head);color:var(--head);margin:0}
.result-card .btn{margin:4px}
@media (max-width:900px){.learn{grid-template-columns:1fr}.outline-nav{position:static;max-height:none;order:2}}

/* ---- forum ---- */
.forum-list{display:grid;gap:14px}
.forum-cat{display:grid;gap:2px;background:#fff;border:1px solid var(--line);border-inline-start:4px solid var(--yellow);padding:14px 18px;border-radius:3px;color:var(--text);transition:box-shadow .3s,transform .3s}
.forum-cat:hover{box-shadow:0 8px 24px rgba(0,0,0,.1);transform:translateY(-2px);color:var(--text)}
.forum-cat strong{color:var(--head);font:600 18px var(--f-head)}.forum-cat small{color:#999}
table.topics td{vertical-align:top}.num-col{white-space:nowrap;width:1%}
.hidden-row{opacity:.5;background:repeating-linear-gradient(45deg,#fff,#fff 8px,#f7f7f7 8px,#f7f7f7 16px)}
.post{background:#fff;border:1px solid var(--line);border-radius:3px;padding:14px 18px;margin-bottom:14px}
.post header{margin-bottom:6px;color:var(--head)}.post .body p{margin:.5em 0;overflow-wrap:anywhere}
.mod{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}.mod .btn{padding:6px 14px}
.link-btn{background:none;border:0;color:var(--blue);cursor:pointer;font:inherit;padding:0 6px;text-decoration:underline}
.pager{display:flex;gap:16px;justify-content:center;margin:20px 0}
form.stack textarea{width:100%;padding:10px;border:1px solid #ddd;border-radius:var(--radius);font:inherit}

/* ---- reports ---- */
.kpis{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:16px;margin-bottom:26px}
.kpi{background:#fff;border:1px solid var(--line);border-top:3px solid var(--yellow);padding:16px 18px;border-radius:3px}
.kpi b{display:block;font:700 30px var(--f-head);color:var(--head)}.kpi span{color:#888;font-size:14px}
.report-links{list-style:none;padding:0;display:flex;gap:12px;flex-wrap:wrap}.report-links a{display:block;background:var(--soft);border:1px solid var(--line);padding:10px 18px;border-radius:3px}
.table-scroll{overflow-x:auto}table.report th{background:var(--soft);white-space:nowrap}
.toolbar{display:flex;gap:12px;flex-wrap:wrap;align-items:center}

/* ---- AI assistant ---- */
.ai-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:22px;margin-bottom:28px}
.ai-card{background:#fff;border:1px solid var(--line);border-top:3px solid var(--yellow);padding:18px 20px;border-radius:3px}
.ai-card h2{font-size:19px;margin-top:0}
.ai-card form.stack{max-width:none}.ai-card select,.ai-card textarea{width:100%;padding:9px;border:1px solid #ddd;border-radius:var(--radius);font:inherit}
.ai-edit input[name],.ai-edit textarea,.ai-edit select{width:100%;padding:9px;border:1px solid #ddd;border-radius:var(--radius);font:inherit;margin-bottom:6px}
.ai-edit input[type=checkbox]{width:auto;margin:0 6px}
.ai-lesson{border-top:1px dashed var(--line);padding-top:10px;margin-top:10px}
.ai-choice{display:flex;gap:6px;align-items:center}.ai-choice input[name$="_text"]{flex:1}

blockquote.answer{margin:0 0 12px;padding:10px 14px;background:var(--soft);border-inline-start:3px solid var(--blue);white-space:pre-wrap}

/* ---- course language tags ---- */
.course-card .thumb{position:relative}
.lang-badge{position:absolute;top:10px;inset-inline-start:10px;z-index:2;background:rgba(15,47,64,.88);color:#fff;font:500 12px var(--f-body);padding:3px 10px;border-radius:999px;line-height:1.5;backdrop-filter:blur(2px)}
.tag.lang-tag{background:var(--yellow);border-color:var(--yellow);color:#222;font-weight:500}

/* ---- contact ---- */
.contact-grid{display:grid;grid-template-columns:1fr 1.6fr;gap:34px;align-items:start}
.contact-info{background:var(--soft);border:1px solid var(--line);border-top:3px solid var(--yellow);padding:20px 24px;border-radius:3px}
.contact-info h2,.contact-form h2{font-size:21px;margin-top:0}.contact-info .ic{color:var(--yellow);margin-inline-end:4px}
.contact-form{max-width:none}.contact-form textarea{width:100%;padding:10px;border:1px solid #ddd;border-radius:var(--radius);font:inherit}
@media (max-width:800px){.contact-grid{grid-template-columns:1fr}}

/* ---- animation ---- */
@keyframes zoomIn{from{opacity:0;transform:scale3d(.3,.3,.3)}50%{opacity:1}to{opacity:1;transform:none}}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@keyframes slideIn{from{opacity:0;transform:translateY(34px)}to{opacity:1;transform:none}}
@keyframes kenburns{from{transform:scale(1.06)}to{transform:scale(1)}}
@keyframes progress{from{width:0}to{width:100%}}
@keyframes marquee{to{transform:translateX(-50%)}}
.js [data-reveal]{opacity:0}
.js [data-reveal].revealed{animation:zoomIn .9s calc(var(--i,0) * 120ms) both cubic-bezier(.2,.7,.2,1)}

/* ---- responsive ---- */
@media (max-width:991px){
  .nav-toggle{display:inline-flex}
  #nav{display:none;order:5;flex-basis:100%;flex-direction:column;align-items:stretch;background:#fff;padding:8px;box-shadow:0 8px 24px rgba(0,0,0,.12)}
  #nav.open{display:flex;animation:fadeUp .25s both}
  .dd-menu{position:static;box-shadow:none;border-top:0;display:block;padding-inline-start:12px}
  .search{order:4;flex:1}
  .stats .wrap{grid-template-columns:1fr}.stats .wrap>div+div{border-inline-start:0;border-top:1px solid #ffffff40}
  .site-footer .cols{grid-template-columns:1fr 1fr}
  .hero{height:520px}
}
@media (max-width:560px){
  .site-footer .cols{grid-template-columns:1fr}
  .cta p{font-size:19px;text-align:center}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .js [data-reveal]{opacity:1}
  .track{animation:none;flex-wrap:wrap;width:auto;justify-content:center}
}