@font-face{font-family:Vazirmatn;src:url("../fonts/Vazirmatn.f6d31671339d.woff2") format("woff2");font-weight:100 900;font-display:swap}
:root{--bg:#f8fafc;--card:#fff;--text:#1e293b;--muted:#64748b;--line:rgba(15,23,42,.09);--radius:14px;--shadow:0 6px 24px rgba(15,23,42,.07);--ok:#16a34a;--err:#dc2626;--warn:#d97706}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Vazirmatn,Tahoma,sans-serif;background:var(--bg);color:var(--text);line-height:1.8;font-size:15px}
a{color:var(--primary);text-decoration:none}
img{max-width:100%;height:auto}
h1,h2,h3,h4{line-height:1.5;margin:0 0 .6em}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
.ltr{direction:ltr;text-align:left}
.muted{color:var(--muted)}
.w100{width:100%}
.ic{vertical-align:middle;flex-shrink:0}
[hidden]{display:none!important}

/* buttons & inputs */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;border-radius:10px;padding:10px 18px;font:inherit;font-weight:600;cursor:pointer;background:var(--primary);color:#fff;transition:.2s}
.btn:hover{background:var(--primary-dark)}
.btn:disabled{opacity:.6;cursor:wait}
.btn-ghost{background:transparent;color:var(--primary);border:1px solid var(--primary)}
.btn-ghost:hover{background:var(--primary);color:#fff}
.btn-accent{background:var(--accent)}
.btn-danger{background:var(--err)}
.btn-sm{padding:6px 12px;font-size:13px}
.btn-cta{background:var(--primary);color:#fff;padding:8px 16px}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;border:0;background:rgba(255,255,255,.08);color:inherit;cursor:pointer}
.link-btn{background:none;border:0;color:var(--muted);font:inherit;cursor:pointer;padding:6px;font-size:13px}
.link-btn:hover{color:var(--primary)}
.inp,input[type=text],input[type=email],input[type=number],input[type=password],input[type=tel],input[type=url],input[type=date],input[type=datetime-local],select,textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font:inherit;background:#fff;color:var(--text);margin-bottom:10px}
textarea.code{font-family:Consolas,monospace;direction:ltr;text-align:left;font-size:13px}
label{font-weight:600;font-size:14px;display:block;margin-bottom:4px}

/* header */
.site-header{background:var(--header-bg);color:var(--header-text);position:sticky;top:0;z-index:50;box-shadow:0 2px 16px rgba(0,0,0,.15)}
.site-header.over-hero{position:absolute;inset:0 0 auto 0;background:linear-gradient(180deg,rgba(10,14,25,.6),transparent);box-shadow:none}
.site-header.over-hero.scrolled{position:fixed;background:var(--header-bg)}
.hdr{display:flex;align-items:center;gap:20px;height:70px}
.logo{display:flex;align-items:center;gap:10px;color:#fff}
.logo-mark{width:42px;height:42px;border-radius:12px;border:2px solid var(--primary);display:grid;place-items:center;font-weight:800;font-size:20px;background:rgba(13,148,136,.12)}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text small{color:#5eead4;font-size:11px;letter-spacing:1px}
.main-nav{display:flex;gap:4px;margin-inline-start:auto}
.main-nav a{color:var(--header-text);padding:8px 14px;border-radius:8px;opacity:.85}
.main-nav a:hover,.main-nav a.active{opacity:1;background:rgba(255,255,255,.08)}
.hdr-actions{display:flex;align-items:center;gap:8px}
.burger{display:none}
.search-drop{display:none;padding:12px 0 16px;background:var(--header-bg)}
.search-drop.open{display:block}
.search-form{display:flex;gap:8px}
.search-form input{margin:0}
.search-results a{display:flex;justify-content:space-between;padding:8px 12px;color:#e5e7eb;border-bottom:1px solid rgba(255,255,255,.06)}
.search-results small{color:#5eead4}
@media(max-width:860px){
  .burger{display:inline-flex}
  .main-nav{position:fixed;inset:70px 0 auto 0;background:var(--header-bg);flex-direction:column;padding:12px 16px;display:none;margin:0}
  .main-nav.open{display:flex}
  .btn-cta span{display:none}
}

/* hero */
.hero{position:relative;min-height:88vh;display:flex;align-items:center;color:#fff;overflow:hidden;background:#1a1f2e}
.hero-slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity 1.2s}
.hero-slide.on{opacity:1}
.hero-slide::after{content:"";position:absolute;inset:0;background:var(--grad)}
.hero-inner{position:relative;z-index:2;padding:120px 16px 60px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:30px;background:rgba(13,148,136,.15);border:1px solid rgba(13,148,136,.4);color:#5eead4;font-size:13px}
.hero-badge::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--primary)}
.hero h1{font-size:clamp(34px,6vw,64px);font-weight:900;margin:18px 0 10px;line-height:1.3}
.hero h1 span{color:#5eead4}
.hero p{max-width:560px;color:rgba(255,255,255,.75);font-size:17px}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.hero-btns .btn{padding:13px 26px;font-size:16px}
.hero-btns .btn-ghost{color:#fff;border-color:rgba(255,255,255,.3);background:rgba(255,255,255,.07)}
.hero-stats{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.hero-stats div{background:rgba(74,85,104,.38);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:10px 18px;backdrop-filter:blur(6px)}
.hero-stats b{display:block;font-size:22px;color:#5eead4}
.hero-stats small{color:rgba(255,255,255,.6)}
.hero-dots{position:absolute;bottom:24px;inset-inline:0;display:flex;justify-content:center;gap:8px;z-index:3}
.hero-dots button{width:10px;height:10px;border-radius:5px;border:0;background:rgba(255,255,255,.3);cursor:pointer;padding:0;transition:.3s}
.hero-dots button.on{width:28px;background:var(--primary)}

/* sections & cards */
.section{padding:56px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:24px;gap:12px;flex-wrap:wrap}
.section-head h2{margin:0;font-size:26px}
.page-head{background:var(--header-bg);color:#fff;padding:40px 0 34px}
.page-head h1{margin:0;font-size:28px}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--line)}
.card-pad{padding:20px}
.grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(270px,1fr))}
.course-card{display:flex;flex-direction:column;overflow:hidden;transition:.25s}
.course-card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(15,23,42,.12)}
.course-card .thumb{aspect-ratio:16/10;background:#e2e8f0 center/cover}
.course-card .body{padding:16px;flex:1;display:flex;flex-direction:column;gap:6px}
.course-card h3{font-size:17px;margin:0;color:var(--text)}
.course-card .meta{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:10px;border-top:1px dashed var(--line)}
.price{font-weight:800;color:var(--primary)}
.badge{display:inline-block;padding:2px 10px;border-radius:20px;font-size:12px;background:rgba(13,148,136,.1);color:var(--primary-dark)}
.badge.ok{background:#dcfce7;color:#166534}.badge.err{background:#fee2e2;color:#991b1b}.badge.warn{background:#fef3c7;color:#92400e}
.content{font-size:16px}
.content img{border-radius:10px}
.flash-wrap{position:fixed;top:84px;inset-inline:0;z-index:90;display:flex;flex-direction:column;align-items:center;gap:8px;pointer-events:none}
.flash{background:#1e293b;color:#fff;padding:10px 20px;border-radius:10px;box-shadow:var(--shadow);animation:fadeout 6s forwards}
.flash.success{background:var(--ok)}.flash.error{background:var(--err)}.flash.warning{background:var(--warn)}
@keyframes fadeout{0%,85%{opacity:1}100%{opacity:0;visibility:hidden}}
.empty{text-align:center;padding:40px;color:var(--muted)}
.table{width:100%;border-collapse:collapse;font-size:14px}
.table th,.table td{padding:10px;border-bottom:1px solid var(--line);text-align:right;vertical-align:middle}
.table th{color:var(--muted);font-weight:600;background:#f8fafc}
.table-wrap{overflow-x:auto}

/* course detail */
.course-hero{display:grid;grid-template-columns:1.3fr 1fr;gap:28px;align-items:start}
.buy-box{position:sticky;top:90px}
.chapters .chapter{border:1px solid var(--line);border-radius:12px;margin-bottom:10px;overflow:hidden;background:#fff}
.chapter-head{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;cursor:pointer;background:#f8fafc;gap:10px}
.chapter-body{padding:6px 16px 12px}
.lesson{display:flex;align-items:center;gap:8px;padding:8px 0;border-bottom:1px dashed var(--line);font-size:14px}
.lesson:last-child{border:0}
@media(max-width:860px){.course-hero{grid-template-columns:1fr}.buy-box{position:static}}

/* player */
.player-wrap{display:grid;grid-template-columns:1fr 340px;gap:20px}
.player{position:relative;background:#000;border-radius:14px;overflow:hidden;aspect-ratio:16/9}
.player video,.player iframe{width:100%;height:100%;display:block;border:0}
.watermark{position:absolute;color:rgba(255,255,255,.35);font-size:13px;pointer-events:none;z-index:5;transition:all 3s;white-space:nowrap}
.lesson-list{max-height:70vh;overflow:auto}
.lesson-list .lesson{cursor:pointer;padding:10px}
.lesson-list .lesson.on{background:rgba(13,148,136,.08);border-radius:8px}
.lesson-list .lesson.locked{opacity:.5;cursor:not-allowed}
.lesson-list .lesson.done .ic{color:var(--ok)}
.protected{user-select:none;-webkit-user-select:none}
.blocker{position:fixed;inset:0;background:rgba(10,14,25,.92);color:#fff;display:grid;place-items:center;z-index:100;text-align:center;padding:20px}
@media(max-width:960px){.player-wrap{grid-template-columns:1fr}}

/* modal & login */
.modal{position:fixed;inset:0;background:rgba(5,8,18,.7);display:none;align-items:center;justify-content:center;z-index:200;padding:16px}
.modal.open{display:flex}
.modal-box{background:#fff;border-radius:18px;max-width:420px;width:100%;position:relative;max-height:92vh;overflow:auto}
.modal-box.wide{max-width:640px;padding:24px}
.modal-x{position:absolute;top:10px;left:10px;background:none;border:0;cursor:pointer;color:var(--muted)}
.login-card{padding:28px 24px}
.login-head{text-align:center;margin-bottom:18px;color:var(--login-btn)}
.login-head h3{color:var(--text);margin:8px 0 2px}
.login-head p{color:var(--muted);margin:0;font-size:14px}
.btn-login{background:var(--login-btn)}
.btn-login:hover{filter:brightness(.92);background:var(--login-btn)}
.otp-cells{display:flex;gap:8px;justify-content:center;margin:12px 0}
.otp-cells input{width:44px;height:52px;text-align:center;font-size:22px;padding:0;margin:0}
.lf-row{display:flex;justify-content:space-between}
.lf-msg{text-align:center;font-size:14px;margin-top:10px;min-height:20px}
.lf-msg.err{color:var(--err)}.lf-msg.ok{color:var(--ok)}
.login-page{min-height:calc(100vh - 70px);display:grid;place-items:center;background:var(--login-bg);padding:30px 16px}
.login-page .login-card{background:#fff;border-radius:18px;max-width:420px;width:100%}

/* user panel */
.panel{display:grid;grid-template-columns:250px 1fr;gap:22px;padding:28px 0 60px}
.panel-side{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;align-self:start;position:sticky;top:90px}
.panel-user{display:flex;align-items:center;gap:10px;padding-bottom:14px;margin-bottom:10px;border-bottom:1px solid var(--line)}
.avatar{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--panel1),var(--panel2));display:grid;place-items:center;color:#fff;font-weight:800;object-fit:cover}
.panel-nav a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;color:var(--text);margin-bottom:2px}
.panel-nav a:hover{background:#f1f5f9}
.panel-nav a.on{background:linear-gradient(135deg,var(--panel1),color-mix(in srgb,var(--panel1) 70%,#000));color:#fff}
.stat-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:22px}
.stat{background:#fff;border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);border:1px solid var(--line)}
.stat small{color:var(--muted);display:block}
.stat b{font-size:22px}
.wallet-hero{background:linear-gradient(135deg,var(--panel1),color-mix(in srgb,var(--panel1) 60%,#7c2d12));color:#fff;border-radius:18px;padding:26px;margin-bottom:20px}
.wallet-hero b{font-size:32px;display:block}
.quick{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}
.msg{padding:12px 14px;border-radius:12px;margin-bottom:10px;max-width:85%}
.msg.me{background:#f1f5f9;margin-inline-start:auto}
.msg.admin{background:rgba(13,148,136,.09)}
.msg small{display:block;color:var(--muted);font-size:12px}
@media(max-width:860px){.panel{grid-template-columns:1fr}.panel-side{position:static}.panel-nav{display:flex;overflow-x:auto;gap:4px}.panel-nav a{white-space:nowrap}}

/* footer */
.site-footer{background:var(--footer-bg);color:var(--footer-text);margin-top:40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:30px;padding:46px 16px}
.site-footer h4{color:#fff;margin-bottom:12px;font-size:16px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:8px}
.site-footer a{color:var(--footer-text);opacity:.85}
.site-footer a:hover{opacity:1;color:#5eead4}
.f-logo{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.f-logo b{display:block;color:#fff;font-size:18px}
.f-logo span{color:#5eead4;font-size:13px}
.f-brand p,.addr{color:#a0aec0}
.licenses{grid-column:1/-1;display:flex;gap:12px;flex-wrap:wrap;justify-content:center}
.copyright{text-align:center;padding:16px;border-top:1px solid rgba(255,255,255,.08);color:#718096;font-size:13px}
@media(max-width:860px){.footer-grid{grid-template-columns:1fr 1fr}.f-brand{grid-column:1/-1}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr}}
.pagination{display:flex;gap:6px;justify-content:center;margin:24px 0}
.pagination a,.pagination span{padding:6px 12px;border-radius:8px;background:#fff;border:1px solid var(--line)}
.iso-block{display:block;width:100%;border:0;min-height:300px;overflow:hidden}

/* ---------- thin colored scrollbars ---------- */
*{scrollbar-width:thin;scrollbar-color:var(--primary) transparent}
::-webkit-scrollbar{width:7px;height:7px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--primary),var(--accent));border-radius:10px}
::-webkit-scrollbar-thumb:hover{background:var(--primary-dark)}

/* ---------- protection ---------- */
.protect-on .protected,.protect-on .protected *{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
.protect-on .protected input,.protect-on .protected textarea{-webkit-user-select:text;user-select:text}
.devtools-open #classroom{filter:blur(22px);pointer-events:none}
.devtools-open::after{content:"برای مشاهده محتوا، ابزار توسعه‌دهنده مرورگر را ببندید.";position:fixed;inset:40% 10% auto;text-align:center;background:#111827;color:#fff;padding:20px;border-radius:14px;z-index:999}
@media print{.protect-on main{display:none!important}}

/* ---------- course page ---------- */
.course-top{background:linear-gradient(135deg,var(--header-bg),#0f3d3a);color:#fff;padding:34px 0}
.course-top-in{display:grid;grid-template-columns:1.2fr 1fr;gap:30px;align-items:center}
.crumbs{font-size:13px;opacity:.7;margin-bottom:10px}.crumbs a{color:#fff}
.course-top h1{font-size:clamp(24px,4vw,36px);margin:10px 0}
.ct-sum{opacity:.8;font-size:16px}
.ct-ins{display:inline-flex;align-items:center;gap:10px;color:#fff;background:rgba(255,255,255,.08);padding:8px 14px 8px 18px;border-radius:40px;margin-top:8px}
.ct-ins img,.ct-ins .avatar{width:40px;height:40px;border-radius:50%;object-fit:cover}
.ct-ins small{display:block;opacity:.7;font-size:11px}
.ct-media img{border-radius:18px;box-shadow:0 20px 50px rgba(0,0,0,.35);width:100%;aspect-ratio:16/10;object-fit:cover}
.ct-ph{aspect-ratio:16/10;border-radius:18px;background:rgba(255,255,255,.06);display:grid;place-items:center}
.facts{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;margin-bottom:20px}
.facts>div{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 14px;display:flex;flex-direction:column;gap:2px;color:var(--primary)}
.facts small{color:var(--muted)}.facts b{color:var(--text);font-size:14px}
.package-box{border:2px dashed var(--accent)}
.price-lines>div,.payable{display:flex;justify-content:space-between;align-items:center;padding:6px 0;border-bottom:1px dashed var(--line);font-size:14px;gap:8px}
.payable{border:0;font-size:16px;margin:8px 0}.payable b{font-size:22px;color:var(--primary)}
.ok-text{color:var(--ok)}
.inline{display:inline-flex;gap:4px;font-weight:400;font-size:12px;margin:0}
.opt{display:flex;gap:6px;align-items:center;font-weight:400;font-size:14px;margin:4px 0}
.choose,.pay-methods{margin:10px 0}
.coupon-row{display:flex;gap:6px}.coupon-row input{margin:0}
.att-form{background:#f8fafc;border-radius:12px;padding:12px;margin:10px 0}.att-form h4{margin:0 0 8px}
.btn-big{padding:14px;font-size:16px;margin-top:10px}
.enrolled{display:flex;flex-direction:column;align-items:center;gap:6px;color:var(--ok);text-align:center;margin-bottom:12px}
.ins-card{overflow:hidden;margin-top:24px}
.ins-cover{height:120px;background:linear-gradient(135deg,var(--primary),var(--accent)) center/cover}
.ins-body{display:flex;gap:16px;padding:0 20px 20px;align-items:flex-start}
.avatar.big{width:84px;height:84px;font-size:30px;border:4px solid #fff;margin-top:-42px;flex-shrink:0;object-fit:cover}
.ins-body h3{margin:8px 0 0}
.course-card .thumb{position:relative}
.kind-tag{position:absolute;top:10px;right:10px;background:rgba(15,23,42,.75);color:#fff;font-size:12px;padding:3px 10px;border-radius:20px}
.card-ins{color:var(--primary-dark)}
.tabs-row{display:flex;gap:8px;margin-bottom:20px;flex-wrap:wrap}
.tabs-row a{padding:8px 16px;border-radius:30px;background:#fff;border:1px solid var(--line);color:var(--text)}
.tabs-row a.on{background:var(--primary);color:#fff;border-color:var(--primary)}
@media(max-width:860px){.course-top-in{grid-template-columns:1fr}.ct-media{order:-1}}

/* ---------- instructor profile ---------- */
.prof-cover{height:260px;background:linear-gradient(135deg,var(--header-bg),var(--primary)) center/cover}
.prof{margin-top:-90px;position:relative;padding-bottom:50px}
.prof-card{text-align:center;padding:24px;max-width:720px;margin:0 auto}
.avatar.huge{width:140px;height:140px;font-size:52px;border:6px solid #fff;margin:-90px auto 10px;display:grid;object-fit:cover;box-shadow:var(--shadow)}
.prof-card h1{margin:0;font-size:28px}
.prof-title{color:var(--primary-dark);font-weight:600}
.prof-stats{display:flex;justify-content:center;gap:12px;margin-top:16px;flex-wrap:wrap}
.prof-stats div{background:#f1f5f9;border-radius:14px;padding:12px 22px;min-width:110px}
.prof-stats b{display:block;font-size:26px;color:var(--primary)}
.prof-bio{max-width:900px;margin:20px auto 0}
.ins-tile{text-align:center;overflow:hidden;color:var(--text);padding-bottom:16px}
.ins-tile .avatar{margin:-42px auto 6px;display:grid}

/* ---------- classroom & documents ---------- */
.class-head h1{font-size:22px;margin:0 0 4px}
.notice{border-color:var(--accent);margin-bottom:14px;display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.lesson-panel{margin-top:14px}
.handout-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.handout-list h4{width:100%;margin:6px 0 0}
.handout{border:1px solid var(--line);background:#f8fafc;border-radius:10px;padding:10px 14px;cursor:pointer;font:inherit}
.handout:hover{border-color:var(--primary);color:var(--primary)}
.lesson-list h4{margin:12px 0 4px;font-size:15px}
.lesson-list .badge{margin-inline-start:auto}
.doc-box{max-width:1000px;width:100%;height:92vh;display:flex;flex-direction:column;padding:0}
.doc-bar{display:flex;gap:10px;align-items:center;padding:12px 50px 12px 16px;border-bottom:1px solid var(--line)}
.doc-view{flex:1;overflow:auto;padding:14px;background:#e2e8f0;position:relative}
.doc-canvas{display:block;max-width:100%;margin:0 auto 12px;box-shadow:0 2px 10px rgba(0,0,0,.15);background:#fff;pointer-events:none}
.img-box{width:100%;height:100%;display:grid;place-items:center;overflow:auto}.img-box canvas{max-height:100%}

/* ---------- survey ---------- */
.survey-wrap{max-width:980px}
.survey-title{font-size:24px;text-align:center}
.sv-section{margin:26px 0 8px;padding:10px 16px;border-radius:12px;background:linear-gradient(90deg,var(--primary),var(--primary-dark));color:#fff;font-size:18px}
.likert{width:100%;border-collapse:collapse;font-size:14px}
.likert td,.likert th{padding:10px 8px;border-bottom:1px solid var(--line);text-align:center}
.likert td:first-child{text-align:right;width:52%}
.lk-head th{color:var(--muted);font-weight:600;background:#f8fafc}
.lk-cell{margin:0}
.lk-cell input{position:absolute;opacity:0}
.lk-cell span{display:inline-block;width:22px;height:22px;border-radius:50%;border:2px solid #cbd5e1;cursor:pointer;transition:.15s}
.lk-cell input:checked+span{border-color:var(--primary);background:radial-gradient(circle,var(--primary) 45%,transparent 50%)}
.sv-info{text-align:right!important;font-weight:600;background:#f8fafc}
.sv-q{text-align:right!important}.sv-label{font-size:15px}
.req{color:var(--err)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{margin:0}
.chip input{position:absolute;opacity:0}
.chip span{display:inline-block;padding:8px 14px;border:1px solid var(--line);border-radius:30px;cursor:pointer;background:#fff;font-weight:400}
.chip input:checked+span{background:var(--primary);border-color:var(--primary);color:#fff}
.chip.big span{padding:12px 18px;font-size:15px}
.offers{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.offer{overflow:hidden}.offer .thumb{aspect-ratio:16/9;background:#e2e8f0 center/cover}.offer .body{padding:12px;display:flex;flex-direction:column;gap:6px}
@media(max-width:700px){
  .likert tr:not(.lk-head){display:block;border-bottom:1px solid var(--line);padding:8px 0}
  .likert .lk-head{display:none}
  .likert td{display:inline-block;border:0;padding:4px}
  .likert td:first-child,.likert td[colspan]{display:block;width:100%}
  .likert td[data-label]::after{content:attr(data-label);display:block;font-size:11px;color:var(--muted)}
}
/* unified dashboard: learner tabs + instructor section + admin link in one sidebar */
.panel-group{color:var(--muted);font-size:12px;font-weight:700;padding:14px 12px 4px;display:flex;align-items:center;gap:6px;border-top:1px solid var(--line);margin-top:8px}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.panel-head h2{margin:0}
.panel-actions{display:flex;gap:6px;flex-wrap:wrap}
.panel-main{min-width:0}
.panel-page .mg-toolbar input,.panel-page .mg-toolbar select{width:auto;margin:0;min-width:160px}
@media(max-width:860px){.panel-group{border:0;margin:0;padding:10px 6px;white-space:nowrap}}
/* secure classroom player (no native controls) */
.sp{position:relative;width:100%;height:100%;background:#000;color:#fff;outline:0;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}
.sp video{width:100%;height:100%;display:block;object-fit:contain;pointer-events:none}
.sp audio{display:none}
.sp-shield{position:absolute;inset:0 0 46px;cursor:pointer;z-index:2}
.sp-status{position:absolute;inset:0;display:grid;place-items:center;font-size:14px;color:#cbd5e1;z-index:1;pointer-events:none}
.sp-bar{position:absolute;inset:auto 0 0;display:flex;align-items:center;gap:8px;padding:8px 10px;background:linear-gradient(transparent,rgba(0,0,0,.85));z-index:3;direction:ltr}
.sp-btn{background:rgba(255,255,255,.12);color:#fff;border:0;border-radius:8px;padding:5px 9px;font-size:13px;cursor:pointer;min-width:34px}
.sp-btn:hover{background:var(--primary)}
.sp-time{font-size:12px;font-variant-numeric:tabular-nums;min-width:38px;text-align:center}
.sp-seek{flex:1;min-width:60px;accent-color:var(--primary);margin:0}
.sp-vol{width:70px;accent-color:var(--primary);margin:0}
.sp-speed{width:auto;margin:0;padding:3px 4px;font-size:12px;background:rgba(255,255,255,.12);color:#fff;border:0;border-radius:6px}
.sp-speed option{color:#000}
.sp-audio{height:auto;min-height:150px;border-radius:14px;background:linear-gradient(135deg,var(--primary),#1e1b4b)}
.sp-audio::before{content:"🎧";position:absolute;top:28px;left:50%;transform:translateX(-50%);font-size:44px}
.sp-audio .sp-shield{inset:0 0 46px}
.player:has(.sp-audio){aspect-ratio:auto}
.doc-view .sp-video{aspect-ratio:16/9;height:auto}
.sp:fullscreen{border-radius:0}
@media(max-width:600px){.sp-vol,.sp-speed{display:none}.sp-bar{gap:5px}.sp-btn{padding:4px 6px;min-width:28px}}
.player .watermark,.doc-view .watermark{z-index:4;pointer-events:none}