:root{--bg:#080d12;--panel:#101820;--panel2:#151f29;--line:#26333e;--text:#f4f7f8;--muted:#91a0ae;--red:#e64b3f;--orange:#f9853b;--green:#40c987;--yellow:#f0bd55;--blue:#5aa9ff;--danger:#ff6d63;--radius:17px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input,select,textarea{font:inherit}.hidden{display:none!important}.auth-shell{min-height:100vh;display:grid;grid-template-columns:1.15fr .85fr}.auth-brand{display:flex;gap:28px;align-items:center;padding:7vw;background:radial-gradient(circle at 30% 30%,#51201b 0,transparent 27%),linear-gradient(140deg,#0b1117,#111a22 65%,#26120f);border-right:1px solid var(--line)}.auth-brand h1{margin:4px 0;font-size:clamp(40px,6vw,78px);line-height:.95}.auth-brand p{color:#cbd4da;font-size:18px}.login-logo{width:175px;height:175px;border-radius:24px;object-fit:cover;box-shadow:0 20px 60px #0009}.auth-card{width:min(430px,86%);margin:auto;background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:30px;box-shadow:0 30px 80px #0008}.auth-card h2{font-size:32px;margin:5px 0}.kicker{font-size:10px;letter-spacing:.17em;font-weight:900;color:var(--orange)}.muted{color:var(--muted)}label{display:block;font-size:13px;color:#c9d1d8;margin:17px 0 8px}input,select,textarea{width:100%;background:#0a1117;border:1px solid var(--line);border-radius:11px;color:white;padding:13px 14px;margin-top:7px;outline:none}input:focus,select:focus,textarea:focus{border-color:var(--orange)}button{border:0;cursor:pointer}.primary{background:linear-gradient(135deg,var(--red),var(--orange));color:white;font-weight:850;border-radius:11px;padding:13px 17px}.secondary{background:transparent;color:white;border:1px solid #a93832;border-radius:11px;padding:12px 17px;font-weight:750}.wide{width:100%;margin-top:10px}.link-btn{display:block;margin:auto;background:none;color:#c7d0d7;padding:13px}.ghost{background:#18232d;color:white;border-radius:10px;padding:9px 11px}.form-msg{font-size:13px;margin-top:10px;min-height:17px}.error{color:#ff8178}.success{color:#6ae0a7}.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px}.panel.compact{margin-top:18px}.panel-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.panel h3{margin:2px 0 12px}.qr-wrap{padding:14px;background:white;border-radius:14px;width:220px;margin:18px auto}.qr-wrap img{display:block;width:100%}details{margin:10px 0;color:var(--muted)}code{word-break:break-all;display:block;margin-top:8px;color:white}.app-shell{display:grid;grid-template-columns:255px 1fr;min-height:100vh}.sidebar{height:100vh;position:sticky;top:0;padding:18px 13px;background:#0b1117;border-right:1px solid var(--line);display:flex;flex-direction:column}.brand-mini{display:flex;align-items:center;gap:11px;padding:2px 7px 18px;border-bottom:1px solid var(--line)}.brand-mini img{width:46px;height:46px;border-radius:9px;object-fit:cover}.brand-mini span,.account-box span{display:block;color:var(--muted);font-size:10px;margin-top:4px}.sidebar nav{margin-top:15px}.nav-btn{width:100%;display:flex;gap:11px;align-items:center;padding:11px 12px;margin:2px 0;background:none;color:#adb8c2;border-radius:10px;text-align:left}.nav-btn.active,.nav-btn:hover{background:#18232d;color:white}.nav-icon{width:22px;text-align:center}.account-box{margin-top:auto;border-top:1px solid var(--line);padding:16px 5px 0;display:flex;gap:9px;align-items:center}.account-box>div:nth-child(2){flex:1;min-width:0}.avatar{width:37px;height:37px;border-radius:50%;display:grid;place-items:center;background:#2b3945;font-weight:900}.topbar{height:78px;position:sticky;top:0;z-index:5;background:#080d12ef;backdrop-filter:blur(12px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 26px}.topbar h2{margin:1px 0}.top-actions{display:flex;align-items:center;gap:9px}.badge{padding:5px 8px;border-radius:999px;font-size:10px;font-weight:900}.badge.green{background:#123b2a;color:#6ae0a7}.badge.yellow{background:#453619;color:#f5c968}.badge.red{background:#481d1a;color:#ff867d}.badge.blue{background:#18334f;color:#84c2ff}.content{max-width:1480px;margin:auto;padding:26px}.hero{padding:25px;border:1px solid #4b2924;border-radius:20px;background:linear-gradient(135deg,#281410,#151e27 65%);display:flex;justify-content:space-between;gap:20px;align-items:center}.hero h1{font-size:34px;margin:5px 0 8px}.hero-actions{display:flex;gap:9px;flex-wrap:wrap}.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:15px;margin-top:15px}.span-3{grid-column:span 3}.span-4{grid-column:span 4}.span-5{grid-column:span 5}.span-6{grid-column:span 6}.span-7{grid-column:span 7}.span-8{grid-column:span 8}.span-12{grid-column:span 12}.metric strong{font-size:29px;display:block;margin:5px 0}.metric small{color:var(--muted)}.row{display:flex;align-items:center;gap:10px;padding:12px 0;border-top:1px solid var(--line)}.row:first-child{border-top:0}.row-main{flex:1;min-width:0}.row-main strong{display:block}.row-main span{font-size:12px;color:var(--muted);display:block;margin-top:3px}.action{background:#1c2832;color:white;border-radius:9px;padding:8px 11px}.action.danger{background:#471d1a;color:#ff948d}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse}.table th,.table td{text-align:left;padding:11px;border-bottom:1px solid var(--line);font-size:13px}.table th{color:var(--muted);font-size:11px;letter-spacing:.08em}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.form-grid label{margin:0}.toolbar{display:flex;gap:9px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-bottom:14px}.tabs{display:flex;gap:7px;flex-wrap:wrap}.tab{background:#17232d;color:#b9c4cd;padding:8px 11px;border-radius:9px}.tab.active{background:#2a3946;color:white}.empty{padding:30px;text-align:center;color:var(--muted)}.progress{height:8px;border-radius:99px;background:#26333e;overflow:hidden}.progress i{display:block;height:100%;background:linear-gradient(90deg,var(--red),var(--orange))}.course-card{border:1px solid var(--line);border-radius:14px;padding:16px;background:#0c1319;margin-top:10px}.chapter{border:1px solid var(--line);border-radius:14px;margin:12px 0;overflow:hidden}.chapter-head{padding:15px;background:#121b23}.content-item{padding:13px 15px;border-top:1px solid var(--line);display:flex;gap:12px;align-items:center}.content-item.done{background:#0d2119}.content-icon{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;background:#1d2a34}.video-modal{position:fixed;inset:0;background:#000d;display:grid;place-items:center;z-index:30;padding:20px}.modal-card{width:min(900px,100%);max-height:92vh;overflow:auto;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:18px}.modal-card video{width:100%;max-height:58vh;background:black}.quiz-option{display:block;padding:12px;border:1px solid var(--line);border-radius:10px;margin:8px 0}.quiz-option input{width:auto;margin:0 8px 0 0}.bottom-nav{display:none}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px}.danger-zone{border-color:#5d2521}.small{font-size:12px}.right{text-align:right}
@media(max-width:1000px){.span-3{grid-column:span 6}.span-4,.span-5,.span-7,.span-8{grid-column:span 6}}
@media(max-width:760px){.auth-shell{display:block;padding:18px}.auth-brand{display:none}.auth-card{width:100%;margin:5vh auto;padding:23px}.app-shell{display:block;padding-bottom:72px}.sidebar{display:none}.content{padding:15px}.topbar{height:70px;padding:0 15px}.hero{display:block;padding:19px}.hero h1{font-size:28px}.hero-actions{margin-top:15px}.span-3,.span-4,.span-5,.span-6,.span-7,.span-8,.span-12{grid-column:span 12}.form-grid,.two-col{grid-template-columns:1fr}.bottom-nav{display:grid;position:fixed;bottom:0;left:0;right:0;grid-template-columns:repeat(5,1fr);background:#0b1117f7;border-top:1px solid var(--line);z-index:20;padding:6px 4px calc(6px + env(safe-area-inset-bottom))}.bottom-nav .nav-btn{display:grid;place-items:center;font-size:9px;gap:1px;padding:5px 2px}.bottom-nav .nav-icon{font-size:17px}.row{align-items:flex-start;flex-wrap:wrap}.login-logo{width:100px;height:100px}}
#toast{position:fixed;right:20px;top:20px;z-index:100;background:#183d2d;color:#7fe8b5;padding:12px 16px;border-radius:11px;opacity:0;transform:translateY(-8px);pointer-events:none;transition:.2s;border:1px solid #2f6b50}#toast.toast{opacity:1;transform:none}#toast.err{background:#431c1a;color:#ff9a92;border-color:#6d2d29}.sep{border:0;border-top:1px solid var(--line);margin:18px 0}

.auth-divider{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:11px;margin:14px 0 4px}.auth-divider:before,.auth-divider:after{content:"";height:1px;background:var(--line);flex:1}.passkey-btn{background:#eef3f6;color:#0a1117;border-radius:11px;padding:13px 17px;font-weight:850}.passkey-btn:hover{background:white}.center{text-align:center}.passkey-btn:focus{outline:2px solid var(--orange);outline-offset:2px}