.admin-main{background:#f3f7fa;min-height:calc(100vh - 150px);padding:45px 0 85px;color:#123049}.admin-wrap{max-width:1240px}.admin-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:26px}.admin-heading h1{font-size:clamp(28px,3vw,39px);margin:12px 0 7px}.admin-heading p{color:#688398}.admin-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.admin-actions button{display:inline-flex;align-items:center;gap:7px}.admin-columns{display:grid;grid-template-columns:330px minmax(0,1fr);gap:20px;align-items:start}.admin-panel{background:#fff;border:1px solid #dce7ee;border-radius:13px;padding:23px;min-width:0}.admin-panel label{display:block;font-weight:700;color:#17374e;font-size:13px;margin:10px 0}.admin-levels,.admin-lang-tabs{display:flex;gap:7px;margin:12px 0 26px;flex-wrap:wrap}.admin-levels button,.admin-lang-tabs button{background:#f1f6f9;border:1px solid #dae5ec;border-radius:8px;color:#163750;padding:10px 12px;font-weight:700;cursor:pointer}.admin-levels button.active,.admin-lang-tabs button.active{background:#123047;color:#fff}.admin-choices{max-height:500px;overflow:auto;display:grid;gap:5px}.admin-choices button,.admin-lesson-list button{display:flex;align-items:center;justify-content:space-between;gap:12px;text-align:left;background:transparent;border:1px solid transparent;padding:12px;border-radius:8px;color:#25465b;cursor:pointer;width:100%}.admin-choices button.active,.admin-lesson-list button.active{background:#eaf3f8;border-color:#bdd6e5}.admin-choices button:hover,.admin-lesson-list button:hover{background:#f2f7fa}.admin-lesson-list{display:grid;gap:3px;margin:10px 0 24px}.admin-lesson-list button{border-bottom:1px solid #e7eef3}.admin-lesson-list button span{flex:1}.admin-lesson-list small{color:#718da0}.admin-editor{padding:28px}.admin-field{margin-bottom:18px}.admin-field input,.admin-field textarea{width:100%;border:1px solid #cbdce7;background:#fff;color:#16364d;font:inherit;border-radius:8px;padding:12px;box-sizing:border-box}.admin-field textarea{resize:vertical;line-height:1.55}.admin-inline{display:flex;gap:10px;align-items:center}.admin-inline input{flex:1;min-width:0}.admin-inline .btn{white-space:nowrap}.admin-form{border-top:1px solid #e3ebf0;padding-top:22px;margin-top:18px}.admin-form h2{font-size:22px;margin:0 0 20px}.admin-form h3{font-size:17px;margin:22px 0 6px}.admin-hint{color:#6b8497;font-size:13px;line-height:1.6}.admin-message{padding:15px 18px;margin-bottom:18px;border:1px solid #d8e5ec;background:#fff;border-radius:9px}.admin-error{border-color:#eab4b4;color:#a52626}.admin-success{border-color:#b7d9c6;color:#226040}.admin-empty{color:#688398;padding:35px 0}.admin-heading .student-kicker{display:inline-flex;gap:7px;align-items:center}@media(max-width:850px){.admin-columns{grid-template-columns:1fr}.admin-heading{align-items:flex-start;flex-direction:column}.admin-choices{max-height:240px}}@media(max-width:520px){.admin-main{padding-top:25px}.admin-panel{padding:16px}.admin-inline{flex-wrap:wrap}.admin-inline .btn{width:100%;justify-content:center}}.exercise-editor{border-top:1px solid #dbe7ef;margin-top:28px;padding-top:22px}.exercise-editor select{border:1px solid #cbdce7;background:#fff;border-radius:8px;padding:12px;width:100%}.exercise-editor .admin-lang-tabs{display:block}.exercise-editor .admin-lang-tabs .admin-field{margin-bottom:12px}.exercise-items{display:flex;flex-wrap:wrap;gap:7px;margin:16px 0}.exercise-items button{border:1px solid #dae5ec;border-radius:8px;background:#f4f8fa;padding:9px 13px;cursor:pointer;color:#123047}.exercise-items button.active{background:#123047;color:#fff}.lesson-exercises{border-top:1px solid #e2eaf0;padding-top:24px;margin-top:30px}.exercise-question{padding:20px 0;border-bottom:1px solid #e1eaf0}.exercise-question strong{display:block;margin-bottom:12px}.exercise-question small{display:block;margin-bottom:10px;color:#66869a}.exercise-options{display:grid;gap:10px;margin:15px 0}.exercise-options label{display:flex;gap:10px;align-items:center;cursor:pointer}.exercise-options input{accent-color:#123047}.exercise-input{padding:12px;border-radius:8px;border:1px solid #cbdce7;width:100%;max-width:440px;margin:10px 0}.exercise-controls{display:flex;gap:15px;align-items:center;margin:16px 0}.exercise-correct{color:#17623c;font-weight:700}.exercise-incorrect{color:#b23b33;font-weight:700}.admin-main .admin-actions .student-refresh,.admin-main .admin-editor .student-refresh{background:#fff;color:#17374e;border:1px solid #bdcedb;opacity:1;box-shadow:0 1px 3px #0a233712}.admin-main .admin-actions .student-refresh:hover,.admin-main .admin-editor .student-refresh:hover{background:#e8f4f8;color:#0d3046;border-color:#70a7bc}.admin-main .admin-actions .student-refresh:disabled{opacity:.55;cursor:not-allowed}.admin-main .admin-choices{scrollbar-width:thin;scrollbar-color:#a9bdc9 transparent}.admin-main .admin-choices::-webkit-scrollbar{width:7px}.admin-main .admin-choices::-webkit-scrollbar-track{background:transparent}.admin-main .admin-choices::-webkit-scrollbar-thumb{background:#a9bdc9;border-radius:15px;border:1px solid #fff}.admin-main .admin-choices::-webkit-scrollbar-thumb:hover{background:#7897ab}.admin-main .admin-editor .admin-field input:focus-visible,.admin-main .admin-editor .admin-field textarea:focus-visible,.admin-main button:focus-visible{outline:2px solid #2496ae;outline-offset:2px}@property --ang{syntax:"<angle>";inherits:false;initial-value:0deg}:root{--night:#071522;--deep:#0b1d2f;--fjord:#12324c;--panel:rgba(255,255,255,.045);--panel-2:rgba(255,255,255,.075);--mint:#5cf2c8;--violet:#9d8cff;--ice:#8fd8ff;--snow:#f2f8fb;--amber:#ffc46b;--red:#ff7a7a;--tx:#e6f1f7;--mut:#9fb5c4;--dim:#6f8797;--line:rgba(190,225,245,.13);--ease:cubic-bezier(.2,.8,.2,1);--spring:cubic-bezier(.34,1.56,.64,1);--display:"Unbounded","Onest",system-ui,sans-serif;--body:"Onest",system-ui,sans-serif;--sy:0;font-family:var(--body);color:var(--tx);background:var(--night);color-scheme:dark;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--night)}body{margin:0;background:radial-gradient(900px 600px at 85% -5%,rgba(157,140,255,.1),transparent 60%),radial-gradient(800px 600px at 5% 30%,rgba(92,242,200,.07),transparent 60%),var(--night);overflow-x:hidden}button,input,select{font:inherit}button{cursor:pointer}a{color:inherit}h1,h2,h3{font-family:var(--display)}::selection{background:var(--mint);color:#04202a}:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:6px}::-webkit-scrollbar{width:11px;height:11px}::-webkit-scrollbar-track{background:var(--night)}::-webkit-scrollbar-thumb{background:#1d4260;border-radius:9px;border:3px solid var(--night)}::-webkit-scrollbar-thumb:hover{background:#2a5e85}.container{width:min(1160px,calc(100% - 48px));margin:auto}.sr-only{position:absolute;width:1px;height:1px;clip:rect(0,0,0,0);overflow:hidden}.scrollbar{position:fixed;inset:0 0 auto 0;height:3px;z-index:60;transform-origin:left;transform:scaleX(0);background:linear-gradient(90deg,var(--mint),var(--ice),var(--violet));box-shadow:0 0 14px #5cf2c8b3;pointer-events:none}.cursor-glow{position:fixed;left:0;top:0;width:520px;height:520px;border-radius:50%;pointer-events:none;z-index:1;background:radial-gradient(circle,rgba(92,242,200,.13),rgba(157,140,255,.07) 40%,transparent 68%);mix-blend-mode:screen;will-change:transform}.confetti{position:fixed;top:0;right:0;bottom:0;left:0;width:100vw;height:100vh;pointer-events:none;z-index:100}.page{animation:pageIn .7s var(--ease) backwards;position:relative;z-index:2}@keyframes pageIn{0%{opacity:0;transform:translateY(14px)}}[data-rv="0"]{opacity:0}[data-rv="1"]{animation:rvIn .9s var(--ease) calc(var(--i,0)*80ms) backwards}@keyframes rvIn{0%{opacity:0;transform:translateY(34px) scale(.965);filter:blur(8px)}}.header{position:sticky;top:0;z-index:50;background:#0715228c;border-bottom:1px solid transparent;backdrop-filter:blur(16px) saturate(1.5);-webkit-backdrop-filter:blur(16px) saturate(1.5);transition:background .4s,border-color .4s,box-shadow .4s}.header.is-scrolled{background:#071522d1;border-color:var(--line);box-shadow:0 12px 40px #00000059}.nav{display:flex;align-items:center;justify-content:space-between;height:80px;gap:20px;transition:height .4s var(--ease)}.header.is-scrolled .nav{height:66px}.brand{display:flex;align-items:center;gap:12px;border:0;background:none;color:var(--snow);text-align:left;padding:0;font:600 15px var(--display);letter-spacing:-.02em;white-space:nowrap}.brand strong{font-weight:700;background:linear-gradient(90deg,var(--mint),var(--ice));-webkit-background-clip:text;background-clip:text;color:transparent}.brand small{display:block;font:600 8px var(--body);letter-spacing:.22em;color:var(--dim);margin-top:4px}.brandmark{position:relative;width:42px;height:42px;display:grid;place-items:center;color:#06202e;border-radius:12px;background:linear-gradient(135deg,var(--mint),var(--ice) 55%,var(--violet));box-shadow:0 0 0 1px #ffffff40 inset,0 6px 24px #5cf2c859;transition:transform .6s var(--spring),box-shadow .4s}.brand:hover .brandmark{transform:rotate(-12deg) scale(1.08);box-shadow:0 0 0 1px #fff6 inset,0 8px 34px #5cf2c899}.links{display:flex;gap:6px;align-items:center}.links button,.textbtn{position:relative;background:none;border:0;color:var(--mut);font-size:13px;font-weight:600;padding:9px 13px;border-radius:9px;transition:color .25s}.links button:after{content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--mint),var(--violet));transform:scaleX(0);transform-origin:right;transition:transform .45s var(--ease)}.links button:hover,.textbtn:hover{color:var(--snow)}.links button:hover:after{transform:scaleX(1);transform-origin:left}.navright{display:flex;align-items:center;gap:12px}.langselect{display:flex;align-items:center;position:relative}.langselect select{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--line);border-radius:10px;background:var(--panel);padding:10px 26px 10px 12px;font-size:12px;font-weight:600;color:var(--tx);max-width:125px;transition:border-color .25s,background .25s}.langselect select:hover{border-color:#5cf2c880;background:var(--panel-2)}.langselect select option{background:var(--deep);color:var(--tx)}.langselect svg{position:absolute;right:9px;pointer-events:none;color:var(--mut)}.btn{--mgx:0px;--mgy:0px;position:relative;overflow:hidden;isolation:isolate;border:0;color:#05202c;display:inline-flex;justify-content:center;align-items:center;gap:12px;padding:14px 22px;border-radius:12px;font-size:13px;font-weight:700;text-align:center;min-height:48px;background:linear-gradient(115deg,var(--mint),var(--ice) 50%,var(--violet));background-size:220% 100%;box-shadow:0 8px 28px #5cf2c847,0 0 0 1px #ffffff59 inset;transform:translate(var(--mgx),var(--mgy));transition:transform .35s var(--ease),box-shadow .35s,background-position .6s var(--ease)}.btn:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:-1;background:linear-gradient(105deg,transparent 30%,rgba(255,255,255,.7) 50%,transparent 70%);transform:translate(-120%);transition:transform .8s var(--ease)}.btn:hover:not(:disabled){background-position:100% 0;box-shadow:0 14px 40px #5cf2c873,0 0 0 1px #ffffff80 inset}.btn:hover:not(:disabled):before{transform:translate(120%)}.btn:active:not(:disabled){transform:translate(var(--mgx),var(--mgy)) scale(.96)}.btn svg{transition:transform .35s var(--ease)}.btn:hover svg{transform:translate(4px)}.btn:disabled{opacity:.55;cursor:not-allowed;box-shadow:none}.btn.small{padding:10px 16px;min-height:40px;border-radius:10px}.btn.secondary{background:var(--panel);color:var(--snow);box-shadow:0 0 0 1px var(--line) inset;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.btn.secondary:hover:not(:disabled){background:var(--panel-2);box-shadow:0 0 0 1px #5cf2c88c inset,0 10px 30px #0000004d}.btn.light{background:var(--snow);color:#06202e;box-shadow:0 10px 40px #00000059}.btn.light:hover:not(:disabled){background:#fff;box-shadow:0 16px 50px #ffffff47}.ripple{position:absolute;border-radius:50%;background:#fff9;transform:scale(0);animation:ripple .7s ease-out forwards;pointer-events:none;z-index:-1}@keyframes ripple{to{transform:scale(1);opacity:0}}.hamburger{display:none;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:8px;color:var(--snow)}.hero{position:relative;padding:92px 0 190px;overflow:hidden;isolation:isolate}.hero-bg{position:absolute;top:0;right:0;bottom:0;left:0;z-index:-1;background:linear-gradient(180deg,#040e19,#08213a 55%,#0c2f4b)}.stars{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}.aurora{position:absolute;border-radius:50%;filter:blur(70px);mix-blend-mode:screen;opacity:.75;will-change:transform}.a1{width:62vw;height:46vh;left:-8vw;top:-6vh;background:radial-gradient(closest-side,rgba(92,242,200,.55),transparent);animation:auroraA 16s ease-in-out infinite alternate}.a2{width:55vw;height:50vh;right:-10vw;top:2vh;background:radial-gradient(closest-side,rgba(157,140,255,.5),transparent);animation:auroraB 19s ease-in-out infinite alternate}.a3{width:44vw;height:30vh;left:30vw;top:22vh;background:radial-gradient(closest-side,rgba(143,216,255,.38),transparent);animation:auroraC 13s ease-in-out infinite alternate}@keyframes auroraA{0%{transform:translateZ(0) rotate(-6deg) scale(1)}to{transform:translate3d(14vw,8vh,0) rotate(8deg) scale(1.25)}}@keyframes auroraB{0%{transform:translateZ(0) rotate(5deg) scale(1.1)}to{transform:translate3d(-16vw,10vh,0) rotate(-9deg) scale(.9)}}@keyframes auroraC{0%{transform:translate3d(-8vw,0,0) scale(.9)}to{transform:translate3d(10vw,-6vh,0) scale(1.3)}}.mountains{position:absolute;left:0;bottom:-2px;width:100%;height:230px}.mountains path{transition:transform .2s linear}.m-far{transform:translateY(calc(var(--sy)*-.05px));opacity:.95}.m-mid{transform:translateY(calc(var(--sy)*-.1px))}.m-near{transform:translateY(calc(var(--sy)*-.16px))}.floaters{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:0}.floaters span{position:absolute;font:600 clamp(14px,1.5vw,22px) var(--display);color:#beebfa47;letter-spacing:-.02em;animation:floaty calc(7s + var(--i)*1.3s) ease-in-out infinite alternate;text-shadow:0 0 24px rgba(92,242,200,.4)}.floaters span:nth-child(1){left:4%;top:20%}.floaters span:nth-child(2){left:44%;top:9%;animation-delay:-2s}.floaters span:nth-child(3){right:6%;top:15%;font-size:clamp(18px,2vw,30px);color:#9d8cff61}.floaters span:nth-child(4){left:2%;bottom:30%;animation-delay:-4s}.floaters span:nth-child(5){right:4%;bottom:34%;animation-delay:-1s}.floaters span:nth-child(6){left:47%;bottom:23%;color:#5cf2c847;animation-delay:-3s}@keyframes floaty{0%{transform:translateZ(0) rotate(-3deg)}to{transform:translate3d(14px,-26px,0) rotate(3deg)}}.herogrid{position:relative;z-index:1;display:grid;grid-template-columns:1.04fr .96fr;align-items:center;gap:70px}.eyebrow,.sectionlabel{display:inline-flex;align-items:center;gap:10px;font-size:10px;letter-spacing:.2em;font-weight:700;color:var(--mint);padding:8px 14px;border-radius:99px;background:#5cf2c814;border:1px solid rgba(92,242,200,.25)}.dot{position:relative;width:7px;height:7px;background:var(--mint);border-radius:50%;box-shadow:0 0 10px var(--mint)}.dot:after{content:"";position:absolute;top:-5px;right:-5px;bottom:-5px;left:-5px;border-radius:50%;border:1px solid var(--mint);animation:pulse 2s ease-out infinite}@keyframes pulse{0%{transform:scale(.4);opacity:1}to{transform:scale(1.8);opacity:0}}.hero .eyebrow{animation:pageIn .9s var(--ease) .1s backwards}.hero h1{font-size:clamp(30px,3.7vw,52px);line-height:1.16;letter-spacing:-.035em;color:var(--snow);font-weight:600;margin:26px 0 24px;text-shadow:0 4px 40px rgba(0,0,0,.35)}.sw{display:inline-block;overflow:hidden;vertical-align:top;padding-bottom:.14em;margin-bottom:-.14em}.sw>span{display:inline-block;animation:wordUp 1s var(--ease) calc(.25s + var(--w)*90ms) backwards}@keyframes wordUp{0%{transform:translateY(112%) rotate(4deg);opacity:0}}.lead{font-size:16px;line-height:1.8;color:var(--mut);max-width:540px;margin:0;animation:pageIn 1s var(--ease) .9s backwards}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px;animation:pageIn 1s var(--ease) 1.1s backwards}.herofooter{display:flex;gap:26px;margin-top:50px;color:var(--mut);font-size:12px;font-weight:600;animation:pageIn 1s var(--ease) 1.3s backwards}.herofooter span{display:flex;align-items:center;gap:8px}.herofooter svg{color:var(--mint)}.heroart{--rx:0deg;--ry:0deg;position:relative;background:linear-gradient(160deg,#ffffff1a,#ffffff08);border:1px solid rgba(190,235,255,.22);backdrop-filter:blur(22px) saturate(1.4);-webkit-backdrop-filter:blur(22px) saturate(1.4);border-radius:22px;overflow:hidden;box-shadow:0 40px 100px #00000080,0 0 0 1px #ffffff0d inset,0 0 80px #5cf2c81f;transform:perspective(1100px) rotate(1.2deg) rotateX(var(--rx)) rotateY(var(--ry));transition:transform .25s ease-out;animation:cardIn 1.3s var(--ease) .5s backwards}@keyframes cardIn{0%{opacity:0;transform:perspective(1100px) translateY(60px) rotateX(18deg) rotate(4deg) scale(.92)}}.heroart:before{content:"";position:absolute;top:-60%;right:-60%;bottom:-60%;left:-60%;background:conic-gradient(from 0deg,transparent 0 60%,rgba(92,242,200,.1) 75%,transparent 90%);animation:spin 9s linear infinite;pointer-events:none}.heroart>*{position:relative}@keyframes spin{to{transform:rotate(360deg)}}.arttop{background:#04101c8c;color:var(--snow);padding:16px 22px;display:flex;align-items:center;gap:14px;font-size:10px;font-weight:700;letter-spacing:.16em;border-bottom:1px solid var(--line)}.articon{background:linear-gradient(135deg,var(--mint),var(--violet));color:#06202e;border-radius:9px;padding:8px;display:flex;animation:bob 3.4s ease-in-out infinite}@keyframes bob{50%{transform:translateY(-3px) rotate(-6deg)}}.artdots{float:right;color:var(--dim);margin-left:90px}.arthead{padding:28px 30px 16px;display:flex;justify-content:space-between;align-items:center;gap:10px}.arthead>div>span{display:block;font-size:12px;color:var(--dim)}.arthead strong{font:600 18px var(--display);color:var(--snow);letter-spacing:-.02em}.greeting{display:grid;place-items:center;min-width:104px;height:44px;padding:0 16px;border-radius:14px 14px 14px 4px;background:linear-gradient(135deg,var(--mint),var(--ice));color:#05202c;font:600 16px var(--display);box-shadow:0 10px 30px #5cf2c859;overflow:hidden;animation:bob 4s ease-in-out infinite}.greeting b{font-weight:600;animation:greet .65s var(--spring) backwards;white-space:nowrap}@keyframes greet{0%{transform:translateY(130%) scale(.7);opacity:0}}.levelvisual{padding:0 30px 30px}.visualrow{display:flex;align-items:center;gap:16px;border-top:1px solid var(--line);padding:16px 0}.visualnumber{font-size:11px;color:var(--dim);width:18px}.visuallevel{font:600 19px var(--display);width:46px;color:var(--snow)}.visualbar{position:relative;flex:1;height:8px;background:#ffffff14;border-radius:9px;overflow:hidden}.visualbar i{display:block;position:relative;height:100%;background:linear-gradient(90deg,var(--mint),var(--ice),var(--violet));border-radius:9px;box-shadow:0 0 14px #5cf2c88c;animation:barIn 1.5s var(--ease) calc(.9s + var(--r)*.14s) backwards}.visualbar i:after,.progress-track div:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(100deg,transparent 30%,rgba(255,255,255,.65) 50%,transparent 70%);transform:translate(-100%);animation:shine 3.2s ease-in-out calc(2s + var(--r,0)*.25s) infinite}@keyframes barIn{0%{width:0}}@keyframes shine{0%,35%{transform:translate(-100%)}75%,to{transform:translate(100%)}}.visualarrow{color:var(--mint);transition:transform .3s var(--ease)}.visualrow:hover .visualarrow{transform:translate(3px,-3px)}.artbottom{background:#04101c80;padding:18px 30px;font-size:9px;letter-spacing:.16em;font-weight:700;color:var(--dim);display:flex;justify-content:space-between;border-top:1px solid var(--line)}.marquee{position:relative;z-index:3;overflow:hidden;border-block:1px solid var(--line);background:#071522cc;padding:18px 0;-webkit-mask:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}.mq-track{display:flex;width:max-content;animation:marquee 60s linear infinite}.marquee:hover .mq-track{animation-play-state:paused}.mq-row{display:flex;flex-shrink:0}.mq-item{display:flex;align-items:baseline;gap:12px;padding:0 34px;white-space:nowrap;position:relative}.mq-item:after{content:"";position:absolute;right:-3px;top:50%;width:6px;height:6px;border-radius:50%;background:var(--violet);opacity:.7;transform:translateY(-50%)}.mq-item b{font:600 18px var(--display);color:var(--snow);letter-spacing:-.02em}.mq-item i{font-style:normal;font-size:13px;color:var(--mint)}@keyframes marquee{to{transform:translate(-50%)}}.stats{position:relative;z-index:2}.statsgrid{display:grid;grid-template-columns:repeat(3,1fr);padding:50px 0 10px;gap:18px}.statsgrid>div{position:relative;display:flex;align-items:center;justify-content:center;gap:18px;padding:28px 16px;border-radius:18px;background:var(--panel);border:1px solid var(--line);overflow:hidden}.statsgrid strong{font:600 clamp(34px,4vw,52px) var(--display);letter-spacing:-.04em;background:linear-gradient(135deg,var(--snow) 30%,var(--mint));-webkit-background-clip:text;background-clip:text;color:transparent}.statsgrid span{font-size:13px;color:var(--mut);max-width:120px;line-height:1.5}.features article,.coursecard,.steps article,.student-metrics article,.student-card,.student-level-grid button,.statsgrid>div{--mx:50%;--my:-30%;position:relative}.features article:after,.coursecard:after,.steps article:after,.student-metrics article:after,.student-level-grid button:after,.statsgrid>div:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:inherit;pointer-events:none;opacity:0;transition:opacity .4s;background:radial-gradient(360px circle at var(--mx) var(--my),rgba(92,242,200,.16),transparent 65%)}.features article:hover:after,.coursecard:hover:after,.steps article:hover:after,.student-metrics article:hover:after,.student-level-grid button:hover:after,.statsgrid>div:hover:after{opacity:1}.section{position:relative;padding-top:118px;padding-bottom:118px;scroll-margin-top:80px}.sectiontop{max-width:700px;margin-bottom:52px}.sectiontop h2{font-size:clamp(26px,3.1vw,42px);line-height:1.2;letter-spacing:-.035em;color:var(--snow);font-weight:600;margin:22px 0 18px}.sectiontop p{font-size:16px;color:var(--mut);line-height:1.8;margin:0}.features,.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.features article{padding:34px;border:1px solid var(--line);border-radius:20px;background:linear-gradient(170deg,var(--panel-2),var(--panel));transition:transform .5s var(--ease),border-color .4s,box-shadow .5s}.features article:hover{transform:translateY(-8px);border-color:#5cf2c866;box-shadow:0 30px 70px #0006,0 0 50px #5cf2c814}.featureicon{display:grid;place-items:center;background:linear-gradient(135deg,#5cf2c833,#9d8cff33);color:var(--mint);width:56px;height:56px;border-radius:16px;border:1px solid rgba(92,242,200,.3);transition:transform .6s var(--spring)}.features article:hover .featureicon{transform:rotate(-10deg) scale(1.14)}.features h3,.steps h3{color:var(--snow);font-size:16px;line-height:1.45;letter-spacing:-.02em;font-weight:600;margin:26px 0 12px}.features p,.steps p{color:var(--mut);line-height:1.75;font-size:14px;margin:0}.course-section{background:linear-gradient(180deg,transparent,rgba(18,50,76,.35) 20%,rgba(18,50,76,.35) 80%,transparent)}.coursegrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.coursecard{--hue:#5cf2c8;background:linear-gradient(170deg,var(--panel-2),var(--panel));border:1px solid var(--line);border-radius:20px;padding:26px;min-height:240px;display:flex;flex-direction:column;overflow:hidden;transition:transform .5s var(--ease),border-color .4s,box-shadow .5s}.coursecard:nth-child(2){--hue:#6ee7e0}.coursecard:nth-child(3){--hue:#8fd8ff}.coursecard:nth-child(4){--hue:#b2a6ff}.coursecard:nth-child(5){--hue:#d59bff}.coursecard:before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:linear-gradient(90deg,var(--hue),transparent);transform:scaleX(.25);transform-origin:left;transition:transform .7s var(--ease)}.coursecard:hover{transform:translateY(-8px) rotate(-.4deg);border-color:var(--hue);box-shadow:0 30px 70px #0006,0 0 60px color-mix(in srgb,var(--hue) 18%,transparent)}.coursecard:hover:before{transform:scaleX(1)}.coursecardtop{display:flex;justify-content:space-between;align-items:center}.courseid{font:600 38px var(--display);letter-spacing:-.05em;color:var(--hue);text-shadow:0 0 30px color-mix(in srgb,var(--hue) 55%,transparent)}.status{display:inline-flex;align-items:center;gap:7px;font-size:10px;font-weight:600;color:var(--mut);background:#ffffff0f;border:1px solid var(--line);padding:7px 11px;border-radius:99px}.status:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber);box-shadow:0 0 8px var(--amber);animation:blink 2s ease-in-out infinite}@keyframes blink{50%{opacity:.25}}.coursecard h3{font-size:15px;line-height:1.6;color:var(--tx);font-weight:500;font-family:var(--body);margin:24px 0 30px}.coursebottom{border-top:1px solid var(--line);padding-top:15px;display:flex;justify-content:space-between;color:var(--dim);font-size:12px;font-weight:600;margin-top:auto}.stepnum{display:block;font:600 56px var(--display);letter-spacing:-.05em;color:transparent;-webkit-text-stroke:1.5px rgba(92,242,200,.55);transition:color .5s,-webkit-text-stroke-color .5s,transform .6s var(--spring);transform-origin:left}.steps article{padding:30px;border-radius:20px;border:1px dashed var(--line);transition:border-color .4s,background .4s}.steps article:hover{border-color:#5cf2c880;background:var(--panel)}.steps article:hover .stepnum{color:var(--mint);transform:scale(1.12) translateY(-2px)}.steps h3{margin-top:18px}.cta{position:relative;overflow:hidden;isolation:isolate;background:linear-gradient(120deg,#0e3a57,#1a2f6b 55%,#3a2a7a)}.cta:before,.cta:after{content:"";position:absolute;z-index:-1;border-radius:50%;filter:blur(60px);mix-blend-mode:screen}.cta:before{width:520px;height:520px;left:-100px;top:-200px;background:radial-gradient(closest-side,rgba(92,242,200,.55),transparent);animation:auroraA 14s ease-in-out infinite alternate}.cta:after{width:560px;height:560px;right:-120px;bottom:-260px;background:radial-gradient(closest-side,rgba(157,140,255,.6),transparent);animation:auroraB 17s ease-in-out infinite alternate}.ctainner{padding:92px 0;display:flex;justify-content:space-between;align-items:center;gap:35px}.cta .sectionlabel{color:var(--snow);background:#ffffff1a;border-color:#ffffff40}.cta h2{font-size:clamp(24px,2.9vw,38px);letter-spacing:-.035em;line-height:1.22;color:var(--snow);font-weight:600;margin:22px 0 14px;max-width:620px}.cta p{color:#c4d7e4;font-size:15px;max-width:600px;line-height:1.75;margin:0}.footer{background:#040e18;color:var(--dim);border-top:1px solid var(--line);position:relative;z-index:2}.footinner{display:flex;justify-content:space-between;align-items:center;gap:20px;min-height:92px;font-size:12px}.footbrand{font:600 14px var(--display);color:var(--snow);letter-spacing:-.02em}.authmain{position:relative;min-height:calc(100vh - 172px);display:grid;place-items:center;padding:70px 20px;overflow:hidden;isolation:isolate}.authmain:before,.authmain:after{content:"";position:absolute;z-index:-1;border-radius:50%;filter:blur(80px);mix-blend-mode:screen}.authmain:before{width:520px;height:520px;left:6%;top:-8%;background:radial-gradient(closest-side,rgba(92,242,200,.35),transparent);animation:auroraA 15s ease-in-out infinite alternate}.authmain:after{width:560px;height:560px;right:4%;bottom:-14%;background:radial-gradient(closest-side,rgba(157,140,255,.38),transparent);animation:auroraB 18s ease-in-out infinite alternate}.authpanel{position:relative;width:min(100%,470px);background:#091b2cd1;backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px);padding:44px;border-radius:24px;box-shadow:0 40px 100px #00000080}.authpanel:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:inherit;padding:1.5px;background:conic-gradient(from var(--ang),rgba(255,255,255,.06) 0 60%,var(--mint),var(--violet),rgba(255,255,255,.06));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);mask-composite:exclude;animation:ang 6s linear infinite;pointer-events:none}@keyframes ang{to{--ang:360deg}}.back{display:flex;align-items:center;gap:8px;background:none;border:none;padding:0;color:var(--mut);font-size:12px;font-weight:600;margin-bottom:30px;transition:color .25s,transform .3s var(--ease)}.back:hover{color:var(--mint);transform:translate(-4px)}.back svg{transform:rotate(180deg)}.authsymbol{width:56px;height:56px;background:linear-gradient(135deg,#5cf2c833,#9d8cff33);border:1px solid rgba(92,242,200,.35);color:var(--mint);display:grid;place-items:center;border-radius:16px;animation:bob 4s ease-in-out infinite}.authpanel h1{font:600 24px var(--display);letter-spacing:-.04em;color:var(--snow);margin:24px 0 8px}.authpanel h2{font-size:18px;color:var(--snow);margin-top:26px}.authsubtitle{font-size:14px;color:var(--mut);line-height:1.7}.notice{display:flex;gap:12px;align-items:flex-start;background:#5cf2c812;border:1px solid rgba(92,242,200,.25);color:var(--tx);font-size:13px;line-height:1.6;padding:15px;border-radius:12px;margin:24px 0;animation:pageIn .5s var(--ease) backwards}.notice svg{flex-shrink:0;color:var(--mint)}.authpanel form{display:grid;gap:18px}.authpanel form label{display:grid;gap:8px;font-weight:600;font-size:12px;color:var(--mut)}.authpanel input{width:100%;padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:#ffffff0d;color:var(--snow);transition:border-color .25s,box-shadow .25s,background .25s}.authpanel input::placeholder{color:var(--dim)}.authpanel input:focus{outline:none;border-color:var(--mint);background:#5cf2c80f;box-shadow:0 0 0 4px #5cf2c824}.authsubmit{width:100%;margin-top:6px}.reset-link{display:block;margin:18px auto 0;border:0;background:none;color:var(--ice);font-weight:600;font-size:12px}.reset-link:hover{color:var(--mint)}.authfoot{display:flex;justify-content:center;gap:7px;font-size:13px;color:var(--mut);margin:24px 0}.authfoot button{background:none;border:0;padding:0;color:var(--mint);font-weight:700}.authfoot button:hover{text-decoration:underline}.authsecurity{border-top:1px solid var(--line);padding-top:20px;display:flex;gap:8px;font-size:11px;line-height:1.6;color:var(--dim)}.authsecurity svg{flex-shrink:0;color:var(--mint)}.dashboard-levels{display:flex;flex-wrap:wrap;gap:9px;margin:22px 0}.dashboard-levels span{border:1px solid var(--line);background:var(--panel);padding:13px 18px;border-radius:12px;font:600 14px var(--display);color:var(--snow)}.student-main{position:relative;min-height:calc(100vh - 172px);padding:42px 0 90px}.student-shell{display:grid;grid-template-columns:240px minmax(0,1fr);gap:26px;align-items:start}.student-side,.student-card{background:linear-gradient(170deg,var(--panel-2),var(--panel));border:1px solid var(--line);border-radius:20px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.student-side{padding:20px;position:sticky;top:96px}.student-side-heading{font:600 14px var(--display);color:var(--snow);letter-spacing:-.02em;padding:9px 11px 22px}.student-side-heading span{display:block;color:var(--mint);font:700 9px var(--body);letter-spacing:.2em;margin-top:6px}.student-nav{position:relative;width:100%;border:0;border-radius:12px;background:transparent;color:var(--mut);padding:14px;text-align:left;display:flex;align-items:center;justify-content:space-between;font-weight:600;font-size:13px;margin-bottom:5px;overflow:hidden;transition:color .3s,background .3s,padding .4s var(--ease)}.student-nav svg{opacity:0;transform:translate(-8px);transition:opacity .3s,transform .4s var(--ease)}.student-nav:hover{color:var(--snow);background:var(--panel);padding-left:18px}.student-nav:hover svg{opacity:.8;transform:none}.student-nav.is-active{color:#06202e;background:linear-gradient(115deg,var(--mint),var(--ice));box-shadow:0 8px 24px #5cf2c847}.student-nav.is-active svg{opacity:1;transform:none}.student-side-user{border-top:1px solid var(--line);margin-top:22px;padding:20px 8px 2px;font-size:11px;color:var(--dim);overflow-wrap:anywhere}.student-content{min-width:0}.student-top{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin:6px 0 28px}.student-kicker{display:inline-block;color:var(--mint);font-weight:700;font-size:10px;letter-spacing:.2em}.student-top h1{font:600 clamp(24px,2.8vw,34px) var(--display);letter-spacing:-.04em;margin:12px 0 10px;color:var(--snow);animation:pageIn .7s var(--ease) backwards}.student-top p{color:var(--mut);font-size:14px;margin:0}.student-refresh{border:1px solid var(--line);color:var(--tx);background:var(--panel);border-radius:11px;padding:10px 15px;font-size:12px;font-weight:600;white-space:nowrap;transition:background .25s,border-color .25s,transform .3s var(--ease)}.student-refresh:hover{background:var(--panel-2);border-color:#5cf2c880;transform:translateY(-2px)}.student-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:6px}.student-metrics article{background:linear-gradient(170deg,var(--panel-2),var(--panel));border:1px solid var(--line);border-radius:18px;padding:22px;display:flex;flex-direction:column;gap:8px;overflow:hidden;transition:transform .45s var(--ease),border-color .3s}.student-metrics article:hover{transform:translateY(-5px);border-color:#5cf2c866}.student-metrics span,.student-metrics small{font-size:12px;color:var(--mut)}.student-metrics strong{font:600 32px var(--display);letter-spacing:-.04em;color:var(--snow)}.student-card{padding:28px;margin-top:18px}.student-card h2{font:600 18px var(--display);letter-spacing:-.03em;color:var(--snow);margin:0 0 22px}.student-card h3{color:var(--snow);font-size:15px;letter-spacing:-.02em;font-weight:600;margin:26px 0 8px}.student-card p{font-size:14px;color:var(--mut);line-height:1.7}.student-info{background:var(--panel);padding:26px;border:1px solid var(--line);border-radius:16px;color:var(--mut);font-size:14px}.student-info[role=status]{position:relative;overflow:hidden}.student-info[role=status]:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(100deg,transparent 30%,rgba(92,242,200,.16) 50%,transparent 70%);animation:shine 1.6s ease-in-out infinite}.student-error{border-color:#ff7a7a66;color:#ffc2c2}.student-level-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}.student-level-grid button{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:20px 14px;text-align:left;display:flex;flex-direction:column;gap:12px;color:var(--snow);overflow:hidden;transition:transform .45s var(--spring),border-color .3s,background .3s,box-shadow .4s}.student-level-grid button:hover{transform:translateY(-6px) scale(1.03);background:var(--panel-2);border-color:#5cf2c88c;box-shadow:0 18px 40px #00000059,0 0 40px #5cf2c81f}.student-level-grid button.selected{border-color:var(--mint);background:#5cf2c81a;box-shadow:0 0 0 1px var(--mint) inset,0 0 40px #5cf2c82e}.student-level-grid strong{font:600 26px var(--display);letter-spacing:-.05em}.student-level-grid span{font-size:12px;color:var(--mut)}.student-level-grid svg{align-self:flex-end;color:var(--mint);transition:transform .35s var(--ease)}.student-level-grid button:hover svg{transform:translate(5px)}.student-catalog{margin-bottom:20px}.student-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.student-card-head h2{margin:10px 0 18px}.student-module{border-top:1px solid var(--line)}.student-module-toggle{border:0;background:transparent;width:100%;display:flex;gap:16px;align-items:center;padding:18px 6px;text-align:left;color:var(--snow);border-radius:10px;transition:background .3s,padding .4s var(--ease)}.student-module-toggle:hover{background:var(--panel);padding-left:14px}.student-module-number{color:var(--mint);font:600 13px var(--display)}.student-module-title{flex:1;font-size:14px;font-weight:600}.student-module-count{font-size:12px;color:var(--mut);padding:5px 10px;border-radius:99px;background:var(--panel)}.student-module-toggle svg{color:var(--mut);transition:transform .5s var(--spring)}.student-module-toggle[aria-expanded=true] svg{transform:rotate(180deg);color:var(--mint)}.student-lessons{background:#04101c73;padding:10px 14px;border-radius:14px;margin-bottom:14px;animation:expand .5s var(--ease) backwards;transform-origin:top}@keyframes expand{0%{opacity:0;transform:translateY(-12px) scaleY(.92)}}.student-lesson{display:flex;align-items:center;gap:12px;font-size:14px;padding:13px 12px;border-bottom:1px solid var(--line);color:var(--tx)}.student-lesson:last-child{border:0}.student-lesson span{flex:1}.student-lesson small{color:var(--dim)}.student-lesson svg:first-child{color:var(--mint)}.student-lesson-link{width:100%;border:0;background:transparent;text-align:left;cursor:pointer;font:inherit;color:inherit;border-radius:10px;transition:background .3s,padding-left .4s var(--ease)}.student-lesson-link:hover,.student-lesson-link:focus-visible{background:#5cf2c817;padding-left:20px}.student-lesson-link svg:last-child{transition:transform .35s var(--ease);color:var(--mint)}.student-lesson-link:hover svg:last-child{transform:translate(5px)}.overview-ring{display:flex;justify-content:center}.ring-wrap{position:relative;display:grid;place-items:center;width:200px;height:230px}.ring{width:190px;height:190px;transform:rotate(-90deg);filter:drop-shadow(0 0 18px rgba(92,242,200,.35))}.ring-bg{fill:none;stroke:#ffffff14;stroke-width:10}.ring-fg{fill:none;stroke:url(#ringGrad);stroke-width:10;stroke-linecap:round;animation:ringIn 1.8s var(--ease) .2s backwards}@keyframes ringIn{0%{stroke-dashoffset:var(--c)}}.ring-center{position:absolute;top:50px;left:0;right:0;text-align:center;display:flex;flex-direction:column;gap:2px}.ring-center strong{font:600 34px var(--display);letter-spacing:-.05em;color:var(--snow)}.ring-center small{font-size:12px;color:var(--mut)}.ring-caption{position:absolute;bottom:0;font-size:12px;font-weight:600;color:var(--mut)}.progress-metrics{margin:22px 0 26px}.progress-levels{display:grid;gap:18px;margin-top:18px}.progress-level-line{display:flex;justify-content:space-between;align-items:center;margin-bottom:9px;color:var(--snow);font-size:14px}.progress-level-line span{font-size:13px;color:var(--mut)}.progress-track{position:relative;height:10px;border-radius:99px;background:#ffffff12;overflow:hidden}.progress-track div{position:relative;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--mint),var(--ice),var(--violet));box-shadow:0 0 14px #5cf2c880;animation:barIn 1.4s var(--ease) .15s backwards;overflow:hidden}.lesson-page{max-width:940px;padding-top:6px;padding-bottom:20px}.lesson-page>.student-refresh{margin-bottom:22px}.lesson-content{padding:clamp(24px,4vw,52px)}.lesson-content h1{font:600 clamp(26px,3.6vw,42px) var(--display);letter-spacing:-.045em;line-height:1.15;color:var(--snow);margin:16px 0 36px}.lesson-content section{margin:32px 0;padding-top:18px;border-top:1px solid var(--line)}.lesson-content section h2{display:flex;align-items:center;gap:12px;margin-bottom:18px}.lesson-content section h2:before{content:"";width:5px;height:22px;border-radius:4px;background:linear-gradient(var(--mint),var(--violet));box-shadow:0 0 14px #5cf2c899}.lesson-prose{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.85;color:#cfe1ec;font-size:16px}.lesson-prose p{margin:0 0 8px;font-size:16px;color:#cfe1ec}.lesson-note{font-size:14px;color:var(--mut);margin-top:32px}.lesson-exercises{border-top:1px solid var(--line);padding-top:26px;margin-top:32px}.exercise-question{padding:22px;margin:0 0 14px;border:1px solid var(--line);border-radius:18px;background:var(--panel);transition:border-color .3s}.exercise-question:focus-within{border-color:#5cf2c873}.exercise-question strong{display:block;margin-bottom:14px;color:var(--snow);font-size:16px;line-height:1.5}.exercise-question small{display:block;margin-bottom:10px;color:var(--dim)}.exercise-options{display:grid;gap:10px;margin:14px 0}.exercise-options label{display:flex;gap:12px;align-items:center;cursor:pointer;padding:14px 16px;border-radius:13px;border:1px solid var(--line);background:#ffffff08;color:var(--tx);transition:border-color .25s,background .25s,transform .35s var(--spring),box-shadow .3s}.exercise-options label:hover{border-color:#5cf2c880;background:#5cf2c80f;transform:translate(6px)}.exercise-options label:has(input:checked){border-color:var(--mint);background:#5cf2c81f;box-shadow:0 0 0 1px var(--mint) inset,0 8px 28px #5cf2c824;animation:pop .4s var(--spring)}.exercise-options input{accent-color:var(--mint);width:18px;height:18px}.exercise-input{padding:14px 16px;border-radius:13px;border:1px solid var(--line);background:#ffffff0d;color:var(--snow);width:100%;max-width:460px;margin:10px 0;transition:border-color .25s,box-shadow .25s}.exercise-input:focus{outline:none;border-color:var(--mint);box-shadow:0 0 0 4px #5cf2c824}.exercise-controls{display:flex;gap:16px;align-items:center;margin:16px 0 0;flex-wrap:wrap}.exercise-correct,.exercise-incorrect{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:14px;padding:9px 14px;border-radius:99px}.exercise-correct{color:#7cffd8;background:#5cf2c81f;border:1px solid rgba(92,242,200,.4);animation:pop .55s var(--spring),glowOk 1.6s ease-out}.exercise-incorrect{color:#ffb3b3;background:#ff7a7a1a;border:1px solid rgba(255,122,122,.4);animation:shake .5s ease}@keyframes pop{0%{transform:scale(.8)}60%{transform:scale(1.06)}to{transform:scale(1)}}@keyframes glowOk{0%{box-shadow:0 0 #5cf2c899}to{box-shadow:0 0 0 22px #5cf2c800}}@keyframes shake{20%{transform:translate(-8px)}40%{transform:translate(7px)}60%{transform:translate(-5px)}80%{transform:translate(3px)}}.lesson-completion{border-top:1px solid var(--line);padding-top:30px;margin-top:32px;display:flex;align-items:flex-start;flex-direction:column;gap:12px}.lesson-completion .btn{animation:cta 2.6s ease-in-out infinite}@keyframes cta{50%{box-shadow:0 8px 28px #5cf2c847,0 0 0 8px #5cf2c81a}}.lesson-completion-success{font:600 17px var(--display);letter-spacing:-.03em;color:var(--mint);margin:0;text-shadow:0 0 24px rgba(92,242,200,.6);animation:pop .7s var(--spring)}.lesson-completion .lesson-note{margin:0;color:var(--mut)}.admin-main h1,.admin-main h2,.admin-main h3{font-family:var(--body)}.admin-main{position:relative;z-index:2}@media(max-width:1050px){.links{gap:2px}.navright{gap:8px}.herogrid{gap:36px}.artdots{margin-left:14px}.floaters span:nth-child(2),.floaters span:nth-child(6){display:none}}@media(max-width:830px){.links{display:none;position:absolute;top:100%;left:0;right:0;background:#071522f5;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);padding:16px 24px;box-shadow:0 20px 40px #0006}.links.open{display:flex;flex-direction:column;align-items:flex-start;animation:expand .35s var(--ease)}.hamburger{display:flex}.desktop{display:none}.herogrid{grid-template-columns:1fr}.hero{padding:64px 0 150px}.heroart{max-width:560px;margin:auto;width:100%}.coursegrid{grid-template-columns:repeat(2,1fr)}.features,.steps{gap:12px}.features article{padding:26px}.ctainner{align-items:flex-start;flex-direction:column}.mountains{height:160px}}@media(max-width:600px){.container{width:min(100% - 32px,1160px)}.nav{height:70px}.header.is-scrolled .nav{height:62px}.brand{font-size:13px}.brand small{font-size:6px}.brandmark{width:36px;height:36px}.langselect select{max-width:105px;font-size:11px}.hero{padding:48px 0 120px}.lead{font-size:15px}.herofooter{margin-top:30px}.actions .btn{width:100%}.arthead{padding:22px 20px 14px}.levelvisual{padding:0 20px 18px}.visualrow{gap:12px}.arttop,.artbottom{padding:15px 19px}.statsgrid{grid-template-columns:1fr;padding-top:34px}.statsgrid>div{padding:20px}.section{padding-top:78px;padding-bottom:78px}.sectiontop{margin-bottom:32px}.features,.steps,.coursegrid{grid-template-columns:1fr}.coursecard{min-height:200px}.ctainner{padding:68px 0}.footinner{flex-direction:column;justify-content:center;padding:26px;text-align:center;gap:8px}.authpanel{padding:28px}.authpanel h1{font-size:21px}.floaters{display:none}.mq-item b{font-size:15px}}@media(max-width:1020px){.student-metrics{grid-template-columns:repeat(2,1fr)}.student-level-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:750px){.student-shell{grid-template-columns:1fr}.student-side{position:static;display:flex;flex-wrap:wrap;gap:6px;padding:10px}.student-side-heading,.student-side-user{display:none}.student-nav{width:auto;flex:1;justify-content:center;margin:0;min-width:85px}.student-nav svg{display:none}.student-main{padding-top:20px}}@media(max-width:480px){.student-level-grid{grid-template-columns:repeat(2,1fr)}.student-card{padding:18px}.student-metrics article{padding:15px}.student-top{align-items:center}.student-refresh{padding:9px}.student-nav{font-size:11px;min-width:70px;padding:11px 7px}.exercise-question{padding:16px}}@media(hover:none){.cursor-glow{display:none}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;animation-delay:0s!important;transition-duration:.01ms!important}[data-rv="0"]{opacity:1}.cursor-glow{display:none}}.themeselect{display:flex;align-items:center;position:relative;border:1px solid var(--line);background:var(--panel);border-radius:10px;color:var(--tx);height:38px;transition:border-color .2s}.themeselect:hover{border-color:var(--mint)}.themeselect .theme-icon{display:flex;align-items:center;margin-left:11px;color:var(--mint);pointer-events:none}.themeselect select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:transparent;border:0;outline:0;color:var(--tx);font:600 12px var(--body);padding:8px 24px 8px 7px;cursor:pointer;max-width:115px}.themeselect select option{background:var(--deep);color:var(--tx)}.themeselect>svg{position:absolute;right:7px;pointer-events:none;color:var(--mut)}.nordic-glyphs{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;overflow:hidden;opacity:.23;font-family:var(--display);font-weight:700}.nordic-glyphs span{position:absolute;font-size:clamp(90px,15vw,240px);line-height:1;color:var(--ice);opacity:.12;transform:rotate(-12deg)}.nordic-glyphs span:nth-child(1){left:-2%;top:4%}.nordic-glyphs span:nth-child(2){right:17%;top:7%;transform:rotate(14deg)}.nordic-glyphs span:nth-child(3){right:-3%;bottom:7%;transform:rotate(-8deg)}:root{--nord-red:#ba2942}.theme-icon svg{stroke-width:1.8}:root[data-theme=light]{--night:#f3f8fb;--deep:#e7f0f6;--fjord:#d8e8f2;--panel:rgba(255,255,255,.8);--panel-2:rgba(227,239,247,.93);--mint:#087f79;--violet:#6250bb;--ice:#2174a6;--snow:#112b43;--tx:#18364c;--mut:#506b80;--dim:#627e91;--line:rgba(31,74,103,.18);--amber:#946521;--red:#b23d42;color-scheme:light}:root[data-theme=light] body{background:radial-gradient(950px 540px at 80% 4%,rgba(79,144,185,.13),transparent 67%),var(--night)}:root[data-theme=light] .header,:root[data-theme=light] .header.is-scrolled{background:#fafdffe8;border-bottom:1px solid var(--line);box-shadow:0 7px 24px #183c590f}:root[data-theme=light] .hero-bg{background:linear-gradient(145deg,#e7f5fa,#d7ebf3 54%,#edf6fa)}:root[data-theme=light] .aurora{opacity:.32;mix-blend-mode:multiply}:root[data-theme=light] .stars{opacity:.24}:root[data-theme=light] .nordic-glyphs{opacity:.42}:root[data-theme=light] .hero h1{text-shadow:none}:root[data-theme=light] .heroart{background:linear-gradient(155deg,#ffffffed,#deeff8d6);border-color:#adcbdc;box-shadow:0 26px 85px #18416224}:root[data-theme=light] .arttop,:root[data-theme=light] .artbottom{background:#d8e9f4d6}:root[data-theme=light] .course-section{background:linear-gradient(180deg,transparent,rgba(196,220,235,.27) 25%,transparent)}:root[data-theme=light] .coursecard,:root[data-theme=light] .features article,:root[data-theme=light] .steps article{box-shadow:0 10px 35px #193f5f0f}:root[data-theme=light] .cta{background:linear-gradient(115deg,#d3ebf4,#c3ddec 52%,#dce7f5)}:root[data-theme=light] .footer{background:#e0ecf4;color:var(--mut)}:root[data-theme=light] .authpanel{background:#fffffff0;box-shadow:0 30px 75px #14374e24}:root[data-theme=light] .authpanel input,:root[data-theme=light] .exercise-input{background:#fff;color:var(--tx)}:root[data-theme=light] .btn:not(.secondary):not(.light){color:#fff;background:linear-gradient(110deg,#117e80,#286eaa)}:root[data-theme=light] .btn.secondary{color:var(--tx);background:#fff}:root[data-theme=light] .btn.light{color:#fff;background:#176b85;box-shadow:0 10px 30px #18445a24}:root[data-theme=light] .brandmark,:root[data-theme=light] .articon{color:#fff}:root[data-theme=light] .links.open{background:#f8fcff;box-shadow:0 14px 35px #18416221}:root[data-theme=light] .exercise-options label{background:#fff}:root[data-theme=light] .exercise-options label:has(input:checked){background:#e7f5f3}:root[data-theme=light] .exercise-correct{color:#116648;background:#e1f8eb}:root[data-theme=light] .exercise-incorrect{color:#922e37;background:#fce7e8}:root[data-theme=light] ::selection{background:#bfe5ed;color:#123047}:root[data-theme=light] .cursor-glow{opacity:.18;mix-blend-mode:multiply}:root[data-theme=light] .scrollbar{box-shadow:none}:root[data-theme=light] .mountains{opacity:.34}:root[data-theme=light] .student-main{background:transparent}:root[data-theme=light] .student-card,:root[data-theme=light] .student-metrics article,:root[data-theme=light] .student-level-grid button{box-shadow:0 8px 32px #183f5f0d}:root[data-theme=dark] .admin-main{color:#123049}@media(max-width:900px){.navright{gap:7px}.themeselect select{max-width:86px}}@media(max-width:600px){.themeselect{height:36px}.themeselect select{max-width:68px;width:68px;font-size:10px}.themeselect .theme-icon{margin-left:7px}.navright{gap:5px}.langselect select{max-width:96px}}.norway-notes{position:relative;z-index:3;border-block:1px solid var(--line);background:linear-gradient(110deg,#104157a3,#09263de6);color:#e9f8fb}.norway-notes-inner{min-height:92px;display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap;padding-block:17px}.norway-notes-heading{font:700 11px var(--body);letter-spacing:.17em;color:#91e8d9;white-space:nowrap}.norway-notes-heading span{color:#e97e83;margin-inline:6px}.norway-note{display:flex;align-items:center;gap:9px;white-space:nowrap}.norway-note-icon{font:700 26px var(--display);color:#91e8d9;line-height:1}.norway-note b{font-size:15px;color:inherit}.norway-note small{font-size:12px;opacity:.84}.norway-notes-letters{font:700 22px var(--display);letter-spacing:.09em;color:#99d7f2;white-space:nowrap}:root[data-theme=light] .norway-notes{background:linear-gradient(110deg,#e5f4f7,#d7eaf3);color:#193b4d;border-color:#a7cad8}:root[data-theme=light] .norway-notes-heading{color:#126660}:root[data-theme=light] .norway-note-icon{color:#137a77}:root[data-theme=light] .norway-notes-letters{color:#356a97}:root[data-theme=light] .marquee{background:#e8f3f8;border-block-color:#b3d0de;box-shadow:none}:root[data-theme=light] .mq-item b{color:#102f45}:root[data-theme=light] .mq-item i{color:#246a73}:root[data-theme=light] .statsgrid>div{background:#fff;border:1px solid #bed5e1;box-shadow:0 8px 25px #13374f0f}:root[data-theme=light] .statsgrid strong{background:none;-webkit-background-clip:initial;background-clip:initial;color:#153d54}:root[data-theme=light] .statsgrid span{color:#426276}:root[data-theme=light] .cta{background:linear-gradient(120deg,#d6edf4,#b9dce9 55%,#dceaf3);color:#14334a}:root[data-theme=light] .cta h2{color:#13334a;text-shadow:none}:root[data-theme=light] .cta p{color:#355b70;opacity:1}:root[data-theme=light] .cta .sectionlabel{color:#165b67;background:#eff8fb;border-color:#a5cdd8}:root[data-theme=light] .cta:before,:root[data-theme=light] .cta:after{opacity:.12;mix-blend-mode:multiply}:root[data-theme=light] .features h3,:root[data-theme=light] .steps h3{color:#193950}:root[data-theme=light] .sectiontop h2,:root[data-theme=light] .sectiontop p{color:#18384f}:root[data-theme=light] .features p,:root[data-theme=light] .steps p{color:#486779}:root[data-theme=light] .coursecard{background:#fff;border-color:#bfd5e2}:root[data-theme=light] .coursecard h3{color:#14334a}:root[data-theme=light] .themeselect select option,:root[data-theme=light] .langselect select option{background:#fff;color:#15384f}:root[data-theme=light] .footer{background:#e5f0f7}:root[data-theme=light] .footbrand{color:#193a51}:root[data-theme=light] .hero h1,:root[data-theme=light] .hero .lead{color:#15354b}:root[data-theme=light] .hero .lead{opacity:1}:root[data-theme=light] .herobadge,:root[data-theme=light] .eyebrow{color:#126660}@media(max-width:760px){.norway-notes-inner{gap:14px;justify-content:center}.norway-notes-heading{width:100%;text-align:center}.norway-notes-letters{font-size:16px}.norway-note small{font-size:11px}}@media(prefers-reduced-motion:reduce){.norway-notes *{animation:none!important}}:root{--nl-motion:cubic-bezier(.22,1,.36,1);--nl-shadow:0 14px 38px rgba(0,13,28,.12)}.student-level-grid button,.student-metrics article,.student-card,.coursecard,.features article,.steps article,.norway-note{transition:transform .42s var(--nl-motion),border-color .35s ease,box-shadow .42s var(--nl-motion),background-color .35s ease}@media(hover:hover)and (pointer:fine){.student-level-grid button:hover,.coursecard:hover{transform:translate3d(0,-6px,0);box-shadow:0 20px 42px #042d4729;border-color:var(--mint)}.student-metrics article:hover,.features article:hover,.steps article:hover{transform:translate3d(0,-4px,0);box-shadow:var(--nl-shadow)}.student-lesson-link:hover{transform:translate(4px)}.norway-note:hover{transform:translateY(-3px)}}.student-lesson-link{transition:transform .25s var(--nl-motion),background-color .25s,color .25s}.lesson-content>h1{position:relative;max-width:22ch}.lesson-content>h1:after{content:"";display:block;width:clamp(64px,10vw,130px);height:3px;margin-top:16px;border-radius:4px;background:linear-gradient(90deg,var(--mint),var(--ice),transparent);transform-origin:left;animation:nl-underline .9s var(--nl-motion) both}@keyframes nl-underline{0%{transform:scaleX(0);opacity:0}to{transform:scaleX(1);opacity:1}}.norway-notes{overflow:hidden;isolation:isolate}.norway-notes:before{content:"";position:absolute;top:-140%;right:-30%;bottom:-140%;left:-30%;z-index:-1;pointer-events:none;background:linear-gradient(107deg,transparent 34%,rgba(114,233,207,.09) 48%,transparent 64%);transform:translate(-65%) rotate(-7deg);animation:nl-nordlys 13s ease-in-out infinite alternate}@keyframes nl-nordlys{to{transform:translate(55%) rotate(7deg)}}.norway-note-icon{display:inline-block;transform-origin:center;animation:nl-fjordfloat 5.6s ease-in-out infinite alternate}.norway-note:nth-of-type(3) .norway-note-icon{animation-delay:-2s}@keyframes nl-fjordfloat{to{transform:translateY(-5px) rotate(7deg)}}.norway-notes-letters{animation:nl-letterglow 7s ease-in-out infinite alternate}@keyframes nl-letterglow{to{filter:drop-shadow(0 0 10px rgba(99,227,211,.37));opacity:.8}}.progress-track>div{transition:width 1.05s var(--nl-motion);background-size:180% 100%;animation:nl-trackshimmer 5s ease-in-out infinite alternate}@keyframes nl-trackshimmer{to{background-position:100% 0}}button:active:not(:disabled){transition-duration:.12s;filter:brightness(.97)}.student-module-toggle[aria-expanded=true] svg{transform:rotate(180deg)}.student-module-toggle svg{transition:transform .3s var(--nl-motion)}:root[data-theme=light] .student-level-grid button:hover,:root[data-theme=light] .coursecard:hover{box-shadow:0 18px 38px #1c486421}:root[data-theme=light] .norway-notes:before{background:linear-gradient(107deg,transparent 34%,rgba(26,117,130,.1) 48%,transparent 64%)}:root[data-theme=light] .student-level-grid button,:root[data-theme=light] .student-metrics article{border-color:#bbd1df}@media(prefers-reduced-motion:reduce){.norway-notes:before,.norway-note-icon,.norway-notes-letters,.lesson-content>h1:after,.progress-track>div{animation:none!important}.student-level-grid button,.student-metrics article,.student-card,.coursecard,.features article,.steps article,.norway-note,.student-lesson-link,.student-module-toggle svg{transition:none!important}.student-level-grid button:hover,.coursecard:hover,.student-metrics article:hover,.features article:hover,.steps article:hover,.student-lesson-link:hover,.norway-note:hover{transform:none!important}}.hero{min-height:770px}.hero-bg{overflow:hidden}.v4-aurora-curtains{position:absolute;top:-28%;right:-24%;bottom:0;left:-24%;overflow:hidden;pointer-events:none;opacity:.95;filter:blur(11px) saturate(1.55);transform:rotate(-14deg);z-index:0;mix-blend-mode:screen}.v4-aurora-curtains span{position:absolute;top:-15%;height:130%;width:clamp(135px,19vw,350px);border-radius:45% 55% 42% 58%;transform-origin:50% 8%;background:linear-gradient(90deg,transparent 0%,rgba(76,250,207,.02) 13%,rgba(81,255,218,.65) 39%,rgba(127,190,255,.36) 57%,rgba(178,124,255,.32) 76%,transparent 100%);box-shadow:0 0 110px #5cf2c833;animation:v4-curtain 11s ease-in-out infinite alternate}.v4-aurora-curtains span:nth-child(1){left:6%;animation-delay:-2s}.v4-aurora-curtains span:nth-child(2){left:28%;height:148%;animation-duration:15s;animation-delay:-6s}.v4-aurora-curtains span:nth-child(3){left:51%;animation-duration:13s;animation-delay:-8s}.v4-aurora-curtains span:nth-child(4){left:74%;height:140%;animation-duration:17s;animation-delay:-4s}@keyframes v4-curtain{0%{transform:translate(-15%) skew(-20deg) scaleX(.72);opacity:.46}50%{transform:translate(14%) skew(9deg) scaleX(1.22);opacity:1}to{transform:translate(-7%) skew(-8deg) scaleX(.89);opacity:.64}}.v4-nordic-orbit{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:1}.v4-nordic-orbit span{position:absolute;color:#9afbe5;text-shadow:0 0 16px #5cf2c8,0 0 42px #60ddf0;animation:v4-twinkle 5s ease-in-out infinite alternate}.v4-nordic-orbit span:nth-child(1){left:26%;top:13%;font-size:25px}.v4-nordic-orbit span:nth-child(2){left:66%;top:20%;font-size:38px;animation-delay:-2.2s}.v4-nordic-orbit span:nth-child(3){right:8%;top:46%;font-size:22px;animation-delay:-3.5s}@keyframes v4-twinkle{0%{opacity:.15;transform:scale(.68) rotate(0)}to{opacity:.85;transform:scale(1.22) rotate(32deg)}}.hero .mountains{height:280px;filter:drop-shadow(0 -22px 42px rgba(69,176,191,.12))}.hero .m-far{animation:v4-mountain-far 16s ease-in-out infinite alternate}.hero .m-mid{animation:v4-mountain-mid 19s ease-in-out infinite alternate}.hero .m-near{animation:v4-mountain-near 23s ease-in-out infinite alternate}@keyframes v4-mountain-far{to{transform:translate3d(-12px,-9px,0)}}@keyframes v4-mountain-mid{to{transform:translate3d(13px,7px,0)}}@keyframes v4-mountain-near{to{transform:translate3d(-7px,4px,0)}}.v4-pathway{position:relative;padding:2px 30px 22px}.v4-pathway-title{font-size:9px;letter-spacing:.22em;font-weight:800;color:#9ee9e5;padding:6px 0 14px;display:flex;justify-content:space-between}.v4-pathway:before{content:"";position:absolute;left:49px;top:64px;bottom:57px;width:3px;border-radius:8px;background:linear-gradient(180deg,#50f4c5,#79bafc 52%,#ac8bff);box-shadow:0 0 22px #60ecd6a6}.v4-path-stop{position:relative;display:flex;gap:19px;padding:10px 12px 10px 0;min-height:67px;border-top:1px solid rgba(195,235,245,.13);border-radius:12px;transition:transform .3s ease,background .3s ease}.v4-path-stop:hover{transform:translate(7px);background:#5cf2c817}.v4-path-node{position:relative;z-index:1;width:38px;height:38px;flex:0 0 38px;border-radius:50%;display:grid;place-items:center;border:2px solid rgba(174,241,248,.8);background:#0f2d46;box-shadow:0 0 0 5px #46d8cb17,0 0 25px #5cf2c84d;color:#ebffff;font-size:11px;font-weight:800}.v4-path-stop:nth-of-type(3) .v4-path-node,.v4-path-stop:nth-of-type(5) .v4-path-node{border-color:#b4a0ff;box-shadow:0 0 0 5px #ae9aff1a,0 0 25px #ae9aff66}.v4-path-name{display:flex;flex-direction:column;gap:2px;flex:1}.v4-path-name strong{font:700 22px var(--display);color:#effbff;line-height:1.1}.v4-path-name small{font-size:9px;font-weight:700;letter-spacing:.18em;color:#9fc5d6}.v4-path-glyph{font-size:25px;color:#87efd7;filter:drop-shadow(0 0 9px rgba(92,242,200,.6));animation:v4-twinkle 4s ease-in-out infinite alternate}.v4-path-stop:nth-child(2n) .v4-path-glyph{color:#bd9dff;animation-delay:-1.5s}.v4-path-stop .visualarrow{font-size:18px}.heroart{box-shadow:0 48px 120px #0000007a,0 0 75px #5cf2c826;border-color:#75f0de75}:root[data-theme=light] .v4-aurora-curtains{opacity:.32;mix-blend-mode:multiply;filter:blur(23px) saturate(1.1)}:root[data-theme=light] .v4-aurora-curtains span{background:linear-gradient(90deg,transparent,#60d6bf 32%,#80b6ef 58%,#bea3ed 76%,transparent)}:root[data-theme=light] .v4-pathway-title{color:#206f75}:root[data-theme=light] .v4-pathway:before{box-shadow:0 0 12px #258a8e3b}:root[data-theme=light] .v4-path-node{background:#eaf7fa;color:#12344a;border-color:#248c95}:root[data-theme=light] .v4-path-name strong{color:#15354b}:root[data-theme=light] .v4-path-name small{color:#4d7284}:root[data-theme=light] .v4-path-stop{border-color:#366f8f2b}:root[data-theme=light] .v4-path-stop:hover{background:#137d8e12}@media(max-width:750px){.hero{min-height:auto}.v4-aurora-curtains{filter:blur(24px);opacity:.65}.v4-pathway{padding:2px 20px 17px}.v4-pathway:before{left:39px}.v4-path-stop{gap:12px}.hero .mountains{height:165px}}@media(prefers-reduced-motion:reduce){.v4-aurora-curtains span,.v4-nordic-orbit span,.hero .mountains path,.v4-path-glyph{animation:none!important}.v4-path-stop:hover{transform:none!important}}
