@font-face{font-family:Plus Jakarta Sans;font-style:normal;font-weight:400 800;font-display:swap;src:url(https://fonts.gstatic.com/s/plusjakartasans/v12/LDIoaomQNQcsA88c7O9yZ4KMCoOg4Ko20yw.woff2) format("woff2");unicode-range:u+00??,u+0131,u+0152-0153,u+02bb-02bc,u+02c6,u+02da,u+02dc,u+0304,u+0308,u+0329,u+2000-206f,u+20ac,u+2122,u+2191,u+2193,u+2212,u+2215,u+feff,u+fffd}@font-face{font-family:JetBrains Mono;font-style:normal;font-weight:400 500;font-display:swap;src:url(https://fonts.gstatic.com/s/jetbrainsmono/v24/tDbv2o-flEEny0FZhsfKu5WU4zr3E_BX0PnT8RD8yKwBNntkaToggR7BYRbKPxDcwg.woff2) format("woff2");unicode-range:u+00??,u+0131,u+0152-0153,u+02bb-02bc,u+02c6,u+02da,u+02dc,u+0304,u+0308,u+0329,u+2000-206f,u+20ac,u+2122,u+2191,u+2193,u+2212,u+2215,u+feff,u+fffd}:root{--bg:#0b0c0f;--panel:#111317;--line:rgba(255,255,255,0.08);--line-2:rgba(255,255,255,0.14);--text:#f1f4f6;--muted:#949ba3;--dim:#646b73;--teal:#2ee6c8;--blue:#4c8dff;--sky:#62b3ff;--green:#7ee787;--red:#ff6b81;--warn:#ffd27a;--gold:#e7c56a;--silver:#c5d0dc;--bronze:#d08a5c;--ease:cubic-bezier(0.2,0.8,0.2,1);--sans:"Plus Jakarta Sans",system-ui,sans-serif;--mono:"JetBrains Mono",ui-monospace,monospace;--nav-h:72px;--tab-h:calc(62px + env(safe-area-inset-bottom));--arrow:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232ee6c8' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12h14M13 6l6 6-6 6'/%3E%3C/svg%3E");color-scheme:dark}*{box-sizing:border-box}body,html{margin:0;padding:0;overflow-x:clip}html{scroll-behavior:smooth}body{min-height:100vh;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font:inherit;color:inherit}::selection{background:rgba(46,230,200,.3)}:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:8px}.mono{font-family:var(--mono);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.grain{inset:0;z-index:40;opacity:.09;mix-blend-mode:overlay;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}.aurora,.grain{position:fixed;pointer-events:none}.aurora{inset:-180px 0 auto;height:640px;z-index:0;overflow:hidden}.aurora .b{position:absolute;border-radius:50%;filter:blur(90px);mix-blend-mode:screen;opacity:.5}.b1{width:520px;height:280px;left:-8%;top:40px;background:#14b8a6;animation:drift 16s ease-in-out infinite alternate}.b2{width:480px;height:260px;right:-10%;top:0;background:#2f6bff;animation:drift2 19s ease-in-out infinite alternate}.b3{width:360px;height:200px;left:30%;top:120px;background:#5fdc8a;opacity:.28;animation:drift3 13s ease-in-out infinite alternate}@keyframes drift{to{transform:translate(80px,30px) scale(1.08)}}@keyframes drift2{to{transform:translate(-70px,40px) scale(.96)}}@keyframes drift3{to{transform:translate(-30px,-20px) scale(1.12)}}.aurora:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,12,15,.15),rgba(11,12,15,.55) 55%,var(--bg))}.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:15px;letter-spacing:-.02em;white-space:nowrap}.mark{width:28px;height:28px;border-radius:50%;background:conic-gradient(from 200deg,#2ee6c8,#4c8dff,#7ee787,#2ee6c8);display:grid;place-items:center;box-shadow:0 0 20px rgba(46,230,200,.4);flex:none}.mark:after{content:"";width:12px;height:12px;border-radius:50%;background:var(--bg)}.auth{position:relative;z-index:1;min-height:100vh;display:grid;align-items:center;padding:16px 16px 24px}.auth-card{width:min(460px,100%);margin:0 auto;border-radius:28px;padding:22px 18px 16px;border:1px solid transparent;background:linear-gradient(180deg,rgba(20,23,28,.92),rgba(12,14,17,.94)) padding-box,linear-gradient(180deg,rgba(255,255,255,.28),rgba(255,255,255,.05) 40%,rgba(46,230,200,.18)) border-box;box-shadow:0 40px 100px -36px rgba(0,0,0,.85),0 0 80px -36px rgba(46,230,200,.45)}.kicker,.over{display:flex;width:-moz-fit-content;width:fit-content;max-width:100%;align-items:center;gap:8px;margin:18px 0 0;line-height:1.35;color:#c5ced6;font-size:11px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;padding:6px 12px 6px 10px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.03)}.feature .kicker,.page-head .kicker,.prize .kicker{margin-top:0}.dot{width:6px;height:6px;border-radius:50%;background:var(--teal);box-shadow:0 0 10px var(--teal);flex:none}h1,h2,h3{letter-spacing:-.038em;line-height:1.05;margin:0;font-weight:800}h1{font-size:clamp(2rem,7vw,2.7rem);margin-top:14px}h2{font-size:1.15rem;font-weight:700;letter-spacing:-.03em}.lede,.page-head p{color:var(--muted);margin:12px 0 0;font-size:16px;line-height:1.6}.grad{background:linear-gradient(90deg,#2ee6c8,#64a8ff 52%,#9cf0b0);-webkit-background-clip:text;background-clip:text;color:transparent}form{display:grid;grid-gap:12px;gap:12px}.auth-card form,.card form{margin-top:16px}.auth-card h1{margin-top:12px}.auth-card .lede{margin-top:8px}.auth-card form{gap:10px}.auth-card input[type=email],.auth-card input[type=password],.auth-card input[type=text]{height:48px}.field{display:grid;grid-gap:7px;gap:7px}.field span{font-size:13px;font-weight:600;color:#d5dbe2}input[type=email],input[type=password],input[type=text]{width:100%;height:54px;border-radius:16px;border:1px solid var(--line-2);background:rgba(0,0,0,.35);padding:0 16px;font-size:16px;transition:border-color .2s,box-shadow .2s}input::placeholder{color:var(--dim)}input:focus{outline:none;border-color:rgba(46,230,200,.7);box-shadow:0 0 0 4px rgba(46,230,200,.12)}.hint{color:var(--dim);font-size:12px;line-height:1.45}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 18px;border-radius:999px;border:0;text-decoration:none;font-weight:700;cursor:pointer;transition:transform .25s var(--ease),box-shadow .25s var(--ease)}.btn:disabled{opacity:.65;cursor:progress}.btn-primary{justify-content:space-between;min-height:56px;padding:0 6px 0 22px;color:#061412;background:linear-gradient(90deg,#2ee6c8,#62b3ff);box-shadow:0 14px 36px -12px rgba(46,230,200,.75),inset 0 0 0 1px rgba(255,255,255,.35)}.btn-primary:after{content:"";width:40px;height:40px;border-radius:50%;background:#061412 var(--arrow) center /16px no-repeat;flex:none}.btn-primary:hover{transform:translateY(-1px)}.btn-ghost{background:rgba(255,255,255,.04);border:1px solid var(--line-2);color:var(--text);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.btn-ghost:hover{border-color:rgba(255,255,255,.28)}.btn-block{width:100%}.switch{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:14px;margin-top:18px}.switch a{color:var(--text);font-weight:700}.alert{border-radius:16px;padding:12px 14px;font-size:14px;line-height:1.45;border:1px solid transparent}.alert-bad{background:rgba(255,107,129,.08);border-color:rgba(255,107,129,.35);color:#ffd0d7}.alert-ok{background:rgba(46,230,200,.08);border-color:rgba(46,230,200,.35);color:#c8fff4}.alert-warn{background:rgba(255,210,122,.08);border-color:rgba(255,210,122,.35);color:#ffe7b0}.fine{margin-top:18px;color:var(--dim);font-size:12px;line-height:1.5}.fine a,.footer-note a{color:var(--muted);text-decoration:underline;text-underline-offset:3px}.shell{position:relative;z-index:1;min-height:100vh}.topbar{position:-webkit-sticky;position:sticky;top:0;z-index:20;justify-content:space-between;gap:10px;height:var(--nav-h);padding:0 16px;background:rgba(11,12,15,.62);-webkit-backdrop-filter:blur(18px) saturate(140%);backdrop-filter:blur(18px) saturate(140%);border-bottom:1px solid var(--line)}.top-actions,.topbar{display:flex;align-items:center}.top-actions{gap:8px}.top-actions form{margin:0}.points-chip{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 12px;border-radius:999px;border:1px solid rgba(46,230,200,.28);background:rgba(46,230,200,.08);font-size:13px;color:var(--muted)}.points-chip b{color:var(--teal);font-weight:700}.desktop-nav,.logout-desktop{display:none}.main{width:min(980px,100%);margin:0 auto;padding:22px 16px calc(var(--tab-h) + 28px)}.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:30;grid-template-columns:repeat(4,minmax(0,1fr));padding:6px 6px calc(8px + env(safe-area-inset-bottom));background:rgba(11,12,15,.86);-webkit-backdrop-filter:blur(18px) saturate(140%);backdrop-filter:blur(18px) saturate(140%);border-top:1px solid var(--line)}.tabbar,.tabbar a{display:grid;grid-gap:2px;gap:2px}.tabbar a{justify-items:center;min-width:0;color:var(--dim);font-size:11px;font-weight:700;line-height:1.15;padding:4px 0 2px;border-radius:12px;white-space:nowrap}.tabbar a[aria-current=page]{color:var(--text);background:rgba(46,230,200,.1);box-shadow:inset 0 0 0 1px rgba(46,230,200,.25)}.tabbar svg{width:18px;height:18px}.page-head{margin-bottom:18px}.page-head h1{font-size:clamp(1.85rem,6vw,2.8rem)}.grid{display:grid;grid-gap:12px;gap:12px}.stats{grid-template-columns:1fr}.card,.empty,.feature,.gate{position:relative;border-radius:22px;border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));padding:18px;overflow:hidden}.card h2,.feature h2{margin-bottom:6px}.muted,.stat span{color:var(--muted)}.stat>span{display:block;font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}.stat b{display:block;margin-top:10px;font-size:2rem;letter-spacing:-.045em;font-weight:800}.stat-points b{color:var(--teal)}.dim{color:var(--dim);font-size:13px;line-height:1.5}.feature{margin-top:12px;border-color:rgba(46,230,200,.28);background:radial-gradient(420px 180px at 100% 0,rgba(46,230,200,.16),transparent 60%),linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02))}.feature h2{font-size:1.35rem;margin:8px 0}.bar{height:7px;border-radius:99px;background:rgba(255,255,255,.08);margin:14px 0 8px;overflow:hidden}.bar i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,#2ee6c8,#62b3ff)}.meta{display:flex;justify-content:space-between;gap:10px;font-size:12px;color:var(--dim)}.gate{display:grid;grid-gap:12px;gap:12px;margin-bottom:14px;border-color:rgba(46,230,200,.22);background:radial-gradient(280px 160px at 0 0,rgba(98,179,255,.16),transparent 70%),linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.02))}.feature p,.gate p{margin:0;color:var(--muted)}.lock-seal{width:54px;height:54px;border-radius:18px;display:grid;place-items:center;color:var(--teal);background:rgba(46,230,200,.08);border:1px solid rgba(46,230,200,.35);box-shadow:0 0 28px rgba(46,230,200,.18)}.module-list{position:relative;display:grid;grid-gap:10px;gap:10px}.module-list:before{content:"";position:absolute;left:34px;top:22px;bottom:22px;width:1px;background:linear-gradient(180deg,rgba(46,230,200,.55),rgba(76,141,255,.3),rgba(126,231,135,.35))}.module-link{position:relative;display:grid;grid-template-columns:auto 1fr auto;grid-gap:12px;gap:12px;align-items:center;padding:14px;border-radius:20px;border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.015))}.module-link:hover{border-color:rgba(255,255,255,.18)}.module-link.is-central{border-color:rgba(46,230,200,.28)}.module-link.is-locked{background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.012))}.num{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:#14171b;border:1px solid var(--line-2);color:var(--muted);font-size:13px;position:relative;z-index:1}.module-link:not(.is-locked) .num{color:#061412;background:linear-gradient(135deg,#2ee6c8,#62b3ff);border-color:transparent;box-shadow:0 0 22px rgba(46,230,200,.35)}.module-link strong{display:block;font-size:16px;letter-spacing:-.02em}.module-link small{display:block;color:var(--dim);font-size:12.5px;line-height:1.45;margin-top:3px}.core-tag{display:inline-flex;margin-left:6px;letter-spacing:.12em;color:var(--teal);vertical-align:1px}.core-tag,.lock-tag,.pill{font-size:10px;text-transform:uppercase;font-weight:800}.lock-tag,.pill{letter-spacing:.08em;border-radius:999px;padding:6px 8px;border:1px solid var(--line);color:var(--muted);white-space:nowrap}.lock-tag{display:inline-flex;align-items:center;gap:5px;color:#d7fff6;border-color:rgba(46,230,200,.35)}.lock-tag,.pill-ok{background:rgba(46,230,200,.08)}.pill-ok{color:#bff7ec;border-color:rgba(46,230,200,.4)}.pill-bad{color:#ffd0d7;border-color:rgba(255,107,129,.35);background:rgba(255,107,129,.08)}.player{margin-top:12px;aspect-ratio:16/9;border-radius:18px;overflow:hidden;border:1px solid var(--line);background:radial-gradient(closest-side,rgba(46,230,200,.2),transparent),linear-gradient(160deg,#10211f,#0d1624);display:grid;place-items:center;text-align:center;padding:16px}.player:has(iframe),.player:has(video){padding:0}.player iframe,.player video{width:100%;height:100%;border:0}.player p{margin:6px 0 0}.lesson-nav{list-style:none;margin:12px 0 0;padding:0;display:grid;grid-gap:8px;gap:8px}.lesson-nav a{display:grid;grid-template-columns:28px 1fr auto;grid-gap:10px;gap:10px;align-items:center;padding:10px;border-radius:14px;border:1px solid var(--line)}.lesson-nav a.on{border-color:rgba(46,230,200,.45);background:rgba(46,230,200,.07)}.lesson-nav>li:not(:has(a)){display:flex;justify-content:space-between;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}.card fieldset{margin-top:16px}.quiz-review{display:grid;grid-gap:12px;gap:12px;margin:12px 0 0;padding-left:18px}.quiz-review p{margin:4px 0}.lessons{list-style:none;margin:12px 0 0;padding:0;display:grid;grid-gap:8px;gap:8px}.lessons li{display:flex;gap:10px;align-items:flex-start;color:#d5dbe1;font-size:14.5px;line-height:1.45}.lessons li:before{content:"";width:7px;height:7px;margin-top:7px;border-radius:50%;background:var(--teal);box-shadow:0 0 8px var(--teal);flex:none}.lesson-note{color:var(--dim);font-size:13px;margin:4px 0 0}fieldset{border:0;margin:0;padding:0;min-inline-size:0}legend{font-size:1.05rem;font-weight:700;letter-spacing:-.02em;padding:0}.options{display:grid;grid-gap:8px;gap:8px;margin-top:12px}.check,.option{display:flex;gap:12px;align-items:flex-start;padding:13px 14px;border-radius:16px;border:1px solid var(--line);background:rgba(0,0,0,.22)}.check:has(input:checked),.option:has(input:checked){border-color:rgba(46,230,200,.5);background:rgba(46,230,200,.08)}.check input,.option input{margin-top:3px;accent-color:#2ee6c8;width:18px;height:18px;flex:none}.prize{margin-bottom:14px;border-color:rgba(231,197,106,.28);background:radial-gradient(320px 140px at 100% 0,rgba(231,197,106,.16),transparent 70%),linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02))}.prize h2{font-size:1.25rem}.you{margin-top:12px;padding-top:12px;border-top:1px solid var(--line);font-size:15px}.podium{display:grid;grid-template-columns:1fr 1fr;grid-gap:10px;gap:10px;margin-top:4px}.place{display:grid;justify-items:start;grid-gap:4px;gap:4px;align-content:end;min-height:132px;border-radius:22px;border:1px solid var(--line);padding:14px;background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02))}.place-1{grid-column:1/-1;order:-1;min-height:168px;border-color:rgba(231,197,106,.55);background:radial-gradient(240px 120px at 20% 0,rgba(231,197,106,.22),transparent 70%),linear-gradient(180deg,rgba(231,197,106,.08),rgba(255,255,255,.02));box-shadow:0 20px 50px -28px rgba(231,197,106,.7)}.place-2{border-color:rgba(197,208,220,.35)}.place-3{border-color:rgba(208,138,92,.4)}.medal{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;font-family:var(--mono);font-weight:700;font-size:18px;margin-bottom:6px}.place-1 .medal{width:62px;height:62px;font-size:24px;color:#2a2108;background:radial-gradient(circle at 32% 30%,#fff8dc,#e7c56a 42%,#8d6b24);box-shadow:0 0 28px rgba(231,197,106,.55),inset 0 0 0 2px rgba(255,255,255,.35)}.place-2 .medal{color:#1c2430;background:radial-gradient(circle at 32% 30%,#ffffff,#d5dee8 46%,#7d8b9c);box-shadow:inset 0 0 0 2px rgba(255,255,255,.4)}.place-3 .medal{color:#2b160c;background:radial-gradient(circle at 32% 30%,#ffd7bf,#d08a5c 48%,#7a4a2c);box-shadow:inset 0 0 0 2px rgba(255,255,255,.28)}.medal-label{font-size:10px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--dim)}.place-1 .medal-label{color:var(--gold)}.place b{font-size:1.05rem;letter-spacing:-.03em}.place .pts{font-family:var(--mono);color:var(--text);font-size:14px}.rank-list{display:grid;grid-gap:8px;gap:8px;margin-top:12px}.rank-row{display:grid;grid-template-columns:36px 1fr auto;grid-gap:10px;gap:10px;align-items:center;padding:12px 14px;border-radius:16px;border:1px solid var(--line);background:rgba(255,255,255,.025)}.rank-row.me{border-color:rgba(46,230,200,.45);background:rgba(46,230,200,.08)}.empty{text-align:left}.empty .medal{color:var(--dim);background:rgba(255,255,255,.03);border:1px dashed var(--line-2);box-shadow:none}.empty h2{margin:8px 0}.empty p{margin:0;color:var(--muted)}.stack{display:grid;grid-gap:12px;gap:12px}.row-actions{display:flex;flex-direction:column;gap:8px}.row-actions .btn{width:100%}.footer-note{margin-top:28px;color:var(--dim);font-size:12px;line-height:1.5}.seed-form{margin-top:18px}@media (min-width:720px){.auth-card{padding:34px 32px 28px}.stats{grid-template-columns:repeat(3,1fr)}.main{padding-top:32px}.row-actions{flex-direction:row}.row-actions .btn{width:auto}.podium{grid-template-columns:1fr 1.12fr 1fr;align-items:end;gap:12px}.place-1{grid-column:auto;order:0;min-height:230px;transform:translateY(-10px)}.place{min-height:190px}}@media (min-width:960px){.topbar{padding:0 28px}.desktop-nav{display:flex;gap:6px}.desktop-nav a{color:var(--muted);font-size:14px;font-weight:600;padding:8px 12px;border-radius:999px}.desktop-nav a[aria-current=page]{color:var(--text);background:rgba(255,255,255,.06)}.logout-desktop{display:inline-flex}.tabbar{display:none}.main{padding-bottom:56px}}@media (prefers-reduced-motion:reduce){*,:after,:before{scroll-behavior:auto!important;animation:none!important;transition:none!important}.place-1{transform:none}}