@font-face{font-family:Inter;src:url('/Inter-Regular.ttf');font-weight:400;font-display:swap}
@font-face{font-family:Inter;src:url('/Inter-SemiBold.ttf');font-weight:600;font-display:swap}
@font-face{font-family:Inter;src:url('/Inter-Bold.ttf');font-weight:700;font-display:swap}
:root{--bg:#090d12;--panel:#111820;--panel2:#16212a;--line:#2a3743;--text:#f3f6f7;--muted:#acb8c6;--green:#c2ff39;--cyan:#67e8f9}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,sans-serif;font-size:16px;line-height:1.5}button,input,select,textarea{font:inherit}button,a,select{touch-action:manipulation}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--cyan);outline-offset:4px}button:disabled{cursor:default;opacity:.5}h1,h2,h3,p{margin:0}h1{font-size:40px;font-weight:600;line-height:1.12;letter-spacing:-1.7px}h2{font-size:23px;line-height:1.3;font-weight:600;letter-spacing:-.5px}h3{font-size:18px;line-height:1.35;font-weight:600}small{font-size:12px}.muted{color:var(--muted)}.eyebrow{font-size:11px;font-weight:600;letter-spacing:1.6px;color:var(--cyan);margin-bottom:13px}.demo-strip{padding:8px 24px;background:#17202a;color:#dae4ec;font-size:12px;text-align:center;border-bottom:1px solid var(--line)}.demo-strip span{margin-left:16px;color:var(--muted)}.shell{max-width:1080px;margin:auto;padding:0 40px}.brandbar{height:105px;display:flex;align-items:center;gap:24px;border-bottom:1px solid var(--line)}.brand{display:flex;gap:15px;align-items:center}.brand img{object-fit:contain}.brand span{font-size:18px;font-weight:700;line-height:1.2;letter-spacing:.8px}.brand small{display:block;font-size:10px;color:var(--green);letter-spacing:2px;margin-top:5px}.cabinet-label{margin-left:auto;color:var(--muted);font-size:13px}.profile-link{display:grid;place-items:center;width:44px;height:44px;border:1px solid var(--line);border-radius:50%;color:var(--cyan);font-size:13px;font-weight:600}.navigation{display:flex;gap:8px;padding:18px 0 26px}.navigation a{display:flex;gap:8px;align-items:center;justify-content:center;min-height:44px;padding:9px 18px;border-radius:10px;color:var(--muted);font-size:14px}.navigation a[aria-current="page"]{background:var(--panel2);color:var(--green)}svg{width:19px;height:19px;flex-shrink:0;stroke:currentColor;stroke-width:1.6;fill:none;stroke-linecap:round;stroke-linejoin:round}.hero{position:relative;overflow:hidden;padding:34px 40px 30px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(110deg,#14202a,#10181f 63%,#142c34);margin-bottom:26px;min-height:245px}.hero h1{font-size:56px;max-width:65%;position:relative;z-index:1}.hero h1 span{color:var(--green)}.hero>p:last-of-type{color:var(--muted);margin-top:20px;max-width:70%;font-size:15px}.hero-logo{position:absolute;height:192px;width:96px;object-fit:contain;right:65px;top:29px;opacity:.9}.hero .eyebrow{color:var(--muted)}.home-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;margin-bottom:36px}.panel{padding:24px;background:var(--panel);border:1px solid var(--line);border-radius:14px}.next-head{display:flex;justify-content:space-between;gap:10px;margin-bottom:12px}.tag{font-size:11px;display:inline-flex;padding:3px 8px;align-items:center;gap:6px;border-radius:6px;background:#23302c;color:#d4ff8b;font-weight:600}.lesson-code{color:var(--muted);font-size:12px}.next-card h2{font-size:24px;margin-bottom:9px}.next-card .muted{font-size:14px}.primary,.secondary{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;min-height:52px;padding:12px 16px;border-radius:10px;border:0;font-weight:600;font-size:15px}.primary{background:var(--green);color:#111b05}.primary svg{stroke-width:2}.primary:hover{background:#d3ff74}.secondary{background:var(--panel2);color:var(--text);border:1px solid #354759}.secondary:hover{background:#20313e}.next-card .primary{margin-top:24px}.section-head{display:flex;align-items:center;justify-content:space-between;margin:0 0 18px;gap:16px}.section-head a{font-size:13px;color:var(--cyan);display:flex;gap:8px;align-items:center;min-height:44px}.progress-top{display:flex;align-items:end;justify-content:space-between;gap:10px;margin:22px 0 12px}.progress-number{font-size:32px;font-weight:600;letter-spacing:-1px}.progress-number small{font-size:15px;color:var(--muted);font-weight:400;letter-spacing:0}.progress-percent{font-size:14px;color:var(--green)}progress{appearance:none;border:0;background:#293641;border-radius:6px;width:100%;height:5px;display:block;overflow:hidden}progress::-webkit-progress-bar{background:#293641}progress::-webkit-progress-value{background:var(--green)}progress::-moz-progress-bar{background:var(--green)}.progress-card>p{color:var(--muted);font-size:13px;margin-top:15px}.block-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.block-card{display:flex;gap:16px;align-items:center;padding:20px;border:1px solid var(--line);border-radius:12px;background:var(--panel);min-height:96px;transition:border-color .15s}.block-card:hover{border-color:#637987}.block-num{font-size:21px;min-width:30px;color:var(--muted);font-weight:600;letter-spacing:-1px}.block-card:first-child .block-num{color:var(--green)}.block-copy{flex:1;min-width:0}.block-copy h3{font-size:15px;font-weight:600}.block-copy p{font-size:12px;color:var(--muted);margin-top:6px}.block-card>svg{width:17px;color:var(--muted)}.footer{font-size:12px;color:var(--muted);text-align:center;margin:34px 0}.back-link{display:inline-flex;align-items:center;gap:8px;min-height:44px;font-size:13px;color:var(--muted);margin-bottom:18px}.page-head{margin-bottom:28px}.page-head h1{margin-bottom:14px}.page-head .muted{max-width:610px;font-size:15px}.lesson-list{border:1px solid var(--line);border-radius:14px;overflow:hidden}.lesson-row{padding:19px 22px;display:flex;align-items:center;gap:18px;background:var(--panel);border-bottom:1px solid var(--line)}.lesson-row:last-child{border:0}.lesson-row:hover{background:var(--panel2)}.lesson-marker{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:#1d2b35;color:var(--cyan);font-size:12px;flex-shrink:0}.lesson-marker.done{background:#283820;color:var(--green)}.lesson-row h3{font-size:16px}.lesson-row p{color:var(--muted);font-size:12px;margin-top:5px}.lesson-row>.arrow{margin-left:auto;color:var(--muted)}.block-assignment{margin-top:20px}.block-assignment p{margin:9px 0 16px;color:var(--muted);font-size:14px}.lesson-layout{display:grid;grid-template-columns:1.45fr 1fr;gap:24px}.video-card{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--panel)}.video-visual{height:200px;display:flex;align-items:center;justify-content:center;background:linear-gradient(120deg,#1c3943,#101c29);position:relative}.video-visual img{height:125px;width:62px;opacity:.42;position:absolute;right:28px}.play-circle{width:66px;height:66px;border:1px solid #7e9caa;border-radius:50%;display:grid;place-items:center;color:var(--cyan)}.play-circle svg{width:26px;height:26px}.video-info{padding:22px}.video-info p{color:var(--muted);font-size:13px;margin:7px 0 20px}.lesson-description{margin-top:22px;font-size:15px;color:var(--muted)}.lesson-actions{display:grid;gap:10px;margin-top:22px}.next-link{display:flex;justify-content:space-between;gap:18px;align-items:center;padding:18px 0;border-top:1px solid var(--line);margin-top:24px;font-size:14px}.next-link small{display:block;color:var(--muted);margin-bottom:5px}.lesson-side h3{margin:18px 0 10px}.lesson-side h3:first-child{margin-top:0}.lesson-side p{font-size:14px;color:var(--muted);margin-bottom:16px}.text-button{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:48px;width:100%;padding:14px;background:var(--panel2);border:1px solid var(--line);border-radius:10px;color:var(--text);text-align:left;font-size:14px}.task-layout{display:grid;grid-template-columns:1.3fr 1fr;gap:24px}.task-copy{white-space:pre-line;font-size:15px;color:#d3dce5;line-height:1.8}.field{display:block;margin-bottom:18px}.field span{display:block;font-size:13px;color:var(--muted);margin-bottom:8px}select,textarea{display:block;width:100%;background:#101920;color:var(--text);border:1px solid #4b5c6b;border-radius:8px;padding:12px;font-size:14px}textarea{resize:vertical;min-height:108px}.file-picker{display:block;position:relative;border:1px dashed #637684;border-radius:10px;padding:20px;text-align:center;color:var(--cyan);font-size:14px;cursor:pointer;min-height:80px}.file-picker input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}.file-picker:focus-within{outline:3px solid var(--cyan);outline-offset:3px}.file-list{font-size:12px;color:var(--muted);overflow-wrap:anywhere;margin:12px 0}.note{font-size:12px;color:var(--muted);margin:14px 0;line-height:1.6}.material-list{display:grid;gap:12px}.material{display:flex;gap:16px;align-items:start;padding:22px}.material-icon{width:42px;height:42px;border-radius:10px;background:#21343c;display:grid;place-items:center;color:var(--cyan);flex-shrink:0}.material h3{margin-bottom:5px}.material p{font-size:13px;color:var(--muted);margin-bottom:12px}.material-content{flex:1;min-width:0}.material-link{display:inline-flex;min-height:44px;align-items:center;font-size:13px;color:var(--cyan);text-decoration:underline;text-underline-offset:4px}.material button{width:auto;min-height:44px;font-size:13px;padding:8px 18px}.material details{font-size:14px;margin-top:5px}summary{color:var(--cyan);cursor:pointer;padding:12px 0;min-height:44px}.material-guide{white-space:pre-line;color:var(--muted);font-size:13px;line-height:1.7;margin-bottom:18px}.access-layout{display:grid;grid-template-columns:1fr 1fr;gap:24px}.access-card h2{font-size:27px;margin:14px 0 28px}.access-line{display:flex;justify-content:space-between;gap:20px;margin:14px 0;font-size:14px}.access-line span:first-child{color:var(--muted)}.access-help h2{margin-bottom:15px}.access-help p{font-size:14px;color:var(--muted);margin-bottom:20px}.access-help .secondary{margin-top:10px}.reset-button{border:0;background:none;padding:10px 0;min-height:44px;color:var(--muted);text-decoration:underline;text-underline-offset:4px;font-size:12px;cursor:pointer}.loading{color:var(--muted);padding:40px 0}dialog{width:calc(100% - 36px);max-width:430px;background:var(--panel);color:var(--text);padding:28px;border:1px solid #485b6c;border-radius:18px}dialog::backdrop{background:#000b}dialog h2{margin-bottom:16px}dialog p:not(.eyebrow){font-size:14px;line-height:1.7;margin-bottom:16px}dialog .primary{margin-top:22px}.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);max-width:min(480px,calc(100% - 32px));width:max-content;padding:14px 20px;border:1px solid #687e8e;border-radius:12px;background:#24333f;color:var(--text);font-size:13px;z-index:10;box-shadow:0 6px 30px #0008}.error{padding:30px;border:1px solid var(--line);border-radius:14px}
@media(max-width:650px){.demo-strip{padding:7px 10px;font-size:10px}.demo-strip span{margin-left:10px}.shell{padding:0 20px}.brandbar{height:84px;gap:12px}.brand{gap:12px}.brand span{font-size:16px}.brand img{height:43px;width:21px}.cabinet-label{display:none}.profile-link{margin-left:auto;width:40px;height:40px}.navigation{position:fixed;bottom:0;left:0;right:0;background:#10171f;border-top:1px solid var(--line);padding:8px 8px calc(8px + env(safe-area-inset-bottom));justify-content:space-around;gap:2px;z-index:5}.navigation a{padding:8px;flex:1;flex-direction:column;gap:4px;font-size:10px;min-height:54px;border-radius:8px}.navigation svg{width:19px;height:19px}main{padding-top:23px}.hero{padding:24px 23px;min-height:224px;margin-bottom:16px;border-radius:14px}.hero h1{font-size:39px;max-width:82%;letter-spacing:-1.8px}.hero-logo{height:140px;width:70px;right:18px;top:49px;opacity:.32}.hero .eyebrow{font-size:10px;letter-spacing:1px;max-width:100%;position:relative;z-index:1}.hero>p:last-of-type{font-size:12px;max-width:100%;position:relative;z-index:1;margin-top:19px}.home-grid{grid-template-columns:1fr;gap:14px;margin-bottom:28px}.panel{padding:21px}.next-card h2{font-size:21px}.next-card .primary{margin-top:20px}.progress-card{padding:17px 20px}.progress-card h3{font-size:14px}.progress-top{margin:9px 0 10px}.progress-number{font-size:26px}.progress-card>p{margin-top:10px;font-size:12px}.section-head{margin-bottom:12px;gap:10px}.section-head h2{font-size:20px}.section-head a{font-size:12px}.block-grid{grid-template-columns:1fr;gap:10px}.block-card{padding:18px;min-height:88px}.block-copy h3{font-size:15px}.footer{margin:28px 0 104px;font-size:11px}.page-head{margin-bottom:23px}h1{font-size:30px;letter-spacing:-1px;line-height:1.2}.page-head .muted{font-size:14px}.back-link{margin-bottom:13px}.lesson-layout,.task-layout,.access-layout{grid-template-columns:1fr;gap:20px}.video-visual{height:190px}.lesson-row{padding:17px 15px;gap:12px}.lesson-row h3{font-size:14px}.lesson-marker{width:32px;height:32px;font-size:11px}.lesson-description{font-size:14px}.material{padding:18px;gap:12px}.material-icon{width:34px;height:34px}.material h3{font-size:16px}.task-copy{font-size:14px;line-height:1.8}.toast{bottom:94px}.access-card h2{font-size:25px}.primary,.secondary{font-size:14px}textarea,select{font-size:16px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* Scoped live-state additions; original approved design remains unchanged. */
.navigation:empty{display:none}
.gate-card{max-width:650px;margin:24px auto}
.gate-card>p:not(.eyebrow){margin-top:16px}
.gate-card>.primary,.gate-card>.secondary{margin-top:18px}
.access-line>span:last-child{max-width:62%;overflow-wrap:anywhere}
@media(max-width:650px){.gate-card{margin:0 auto}.gate-card h1{font-size:28px}}