@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@500;600;700&display=swap");

:root{--bg:#f4f1ea;--ink:#101c32;--muted:#697489;--blue:#176dff;--blue2:#54a6ff;--navy:#071329;--line:#d8d5cd;--paper:#fffdf7;--max:1320px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:"Noto Sans SC",system-ui,sans-serif}a{color:inherit;text-decoration:none}button,input{font:inherit}.topbar{height:76px;padding:0 max(24px,calc((100vw - var(--max))/2));display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:50;background:rgba(244,241,234,.88);backdrop-filter:blur(18px);border-bottom:1px solid rgba(16,28,50,.12)}.brand{display:flex;align-items:center;gap:10px;font-weight:800}.brand>span:nth-child(2)>span{color:var(--blue)}.brand b{font:600 10px "Space Grotesk";letter-spacing:1.5px;color:#6d7788;border-left:1px solid #b9bdc4;padding-left:12px}.brand-mark{width:27px;height:25px;display:flex;gap:3px;align-items:end;transform:skew(-17deg)}.brand-mark i{width:6px;border-radius:2px;background:linear-gradient(#88c5ff,#176dff)}.brand-mark i:nth-child(1){height:12px}.brand-mark i:nth-child(2){height:19px}.brand-mark i:nth-child(3){height:25px}.topbar nav{display:flex;gap:34px;font-size:13px;color:#4f5c70}.topbar nav a:hover{color:var(--blue)}.back-link{font-size:12px;font-weight:600;padding:10px 14px;border:1px solid #bdc3cd;border-radius:7px}.back-link span{color:var(--blue);margin-left:6px}
.hero{min-height:760px;background:var(--navy);color:white;position:relative;overflow:hidden;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(420px,.95fr);gap:90px;align-items:center;padding:100px max(28px,calc((100vw - var(--max))/2)) 86px}.hero::before{content:"";position:absolute;width:620px;height:620px;right:-160px;top:-190px;border-radius:50%;background:radial-gradient(circle,rgba(31,116,255,.34),transparent 68%)}.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(92,155,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(92,155,255,.06) 1px,transparent 1px);background-size:64px 64px;mask-image:linear-gradient(to bottom,black,transparent 92%)}.hero-copy,.hero-terminal{position:relative;z-index:1}.eyebrow{font:600 11px "Space Grotesk";letter-spacing:2.6px;color:#7f8ba0}.hero .eyebrow{color:#7794bf}.eyebrow span{display:inline-block;width:25px;height:1px;margin:0 11px 4px 0;background:var(--blue)}h1{font-size:clamp(54px,6vw,88px);line-height:1.08;letter-spacing:-4px;margin:27px 0 24px}h1 em{font-style:normal;color:#6db1ff}.lede{max-width:690px;color:#aebbd0;font-size:17px;line-height:1.9;font-weight:300}.hero-actions{display:flex;gap:12px;margin-top:34px}.hero-actions a{padding:14px 22px;border-radius:7px;font-size:14px}.primary{background:var(--blue);box-shadow:0 10px 30px rgba(23,109,255,.25)}.primary span{margin-left:28px}.secondary{border:1px solid rgba(141,174,225,.35);background:rgba(18,44,84,.45)}.hero-stats{display:flex;margin-top:70px;border-top:1px solid rgba(128,158,204,.22);padding-top:24px}.hero-stats div{min-width:138px}.hero-stats strong{display:block;font:600 25px "Space Grotesk"}.hero-stats span{font-size:11px;color:#7485a2}.hero-terminal{border:1px solid rgba(112,157,228,.28);border-radius:15px;background:linear-gradient(145deg,rgba(19,47,91,.85),rgba(4,15,34,.92));box-shadow:0 38px 80px rgba(0,0,0,.34);transform:rotate(1deg)}.terminal-top{height:50px;display:flex;align-items:center;gap:7px;padding:0 18px;border-bottom:1px solid rgba(117,156,218,.2)}.terminal-top span{width:8px;height:8px;border-radius:50%;background:#315078}.terminal-top span:first-child{background:#ff6b65}.terminal-top span:nth-child(2){background:#f6c454}.terminal-top span:nth-child(3){background:#55d58b}.terminal-top b{margin-left:auto;font:500 10px "Space Grotesk";color:#7186a7}.terminal-body{padding:25px 28px 30px;font:500 13px/2.25 "Space Grotesk","Noto Sans SC"}.terminal-body p{margin:0}.terminal-body i{display:inline-block;width:30px;color:#425979;font-style:normal}.terminal-body .muted{color:#607493}.terminal-body .blue{color:#70b4ff}.terminal-status{margin-top:22px;padding:13px 16px;background:rgba(16,53,103,.65);border:1px solid rgba(87,153,255,.22);border-radius:8px;color:#bcd8ff}.pulse{display:inline-block;width:7px;height:7px;border-radius:50%;background:#58a9ff;box-shadow:0 0 0 5px rgba(88,169,255,.12);margin-right:10px;animation:pulse 1.4s infinite}@keyframes pulse{50%{opacity:.45}}
.section{padding:110px max(28px,calc((100vw - var(--max))/2))}.section-title{margin-bottom:46px}.section-title h2{font-size:clamp(36px,4vw,56px);letter-spacing:-2px;margin:16px 0 12px}.section-title>p:last-child{color:var(--muted)}.path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.path-grid article{position:relative;min-height:315px;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:30px;overflow:hidden;transition:.25s}.path-grid article:hover{transform:translateY(-5px);border-color:#8cb7ff;box-shadow:0 20px 45px rgba(31,62,110,.1)}.path-grid article>span{position:absolute;right:22px;top:14px;font:700 70px "Space Grotesk";color:#edf0f4}.path-grid b{font:700 10px "Space Grotesk";letter-spacing:2px;color:var(--blue)}.path-grid h3{font-size:27px;margin:50px 0 14px}.path-grid p{color:#667286;line-height:1.8;font-size:14px}.path-grid small{position:absolute;left:30px;bottom:28px;color:#929ba9}
.curriculum{background:#e9e6de}.split{display:flex;align-items:end;justify-content:space-between}.search{width:min(390px,40vw);height:48px;display:flex;align-items:center;gap:10px;padding:0 15px;background:var(--paper);border:1px solid #cfccc4;border-radius:8px}.search span{font-size:23px;color:#728097}.search input{border:0;outline:0;background:transparent;width:100%;color:var(--ink)}.course-shell{display:grid;grid-template-columns:390px minmax(0,1fr);min-height:720px;background:var(--paper);border:1px solid #cbc8c0;border-radius:14px;overflow:hidden;box-shadow:0 25px 65px rgba(37,47,67,.09)}.course-sidebar{border-right:1px solid #d8d5cd;background:#f7f4ee}.track-tabs{display:grid;grid-template-columns:repeat(3,1fr);padding:12px;border-bottom:1px solid #ddd9d1;gap:5px}.track-tabs button{border:0;background:transparent;border-radius:7px;padding:10px 4px;color:#768093;font-size:11px;cursor:pointer}.track-tabs button b{display:block;font:600 10px "Space Grotesk";margin-top:3px}.track-tabs button.active{background:var(--navy);color:white}.lesson-list{height:655px;overflow:auto;padding:12px}.lesson-button{width:100%;display:grid;grid-template-columns:34px 1fr auto;align-items:center;gap:10px;text-align:left;border:0;border-bottom:1px solid #e3e0d9;background:transparent;padding:15px 10px;color:#334157;cursor:pointer}.lesson-button:hover{background:#eef3fa}.lesson-button.active{background:#e7effd;border-radius:8px;border-color:transparent;color:#0e55c4}.lesson-button .num{font:600 11px "Space Grotesk";color:#95a0b0}.lesson-button .title{font-size:13px;line-height:1.45}.lesson-button .arrow{color:#9aa4b3}.lesson-viewer{padding:55px clamp(35px,6vw,85px);outline:0;overflow:auto}.viewer-meta{display:flex;gap:9px;align-items:center;color:#7b8595;font:600 10px "Space Grotesk";letter-spacing:1.8px}.viewer-meta b{color:var(--blue)}.lesson-viewer h3{font-size:clamp(34px,4vw,52px);line-height:1.2;letter-spacing:-2px;margin:18px 0}.lesson-intro{font-size:16px;color:#687488;line-height:1.9;max-width:780px}.lesson-viewer hr{border:0;border-top:1px solid #dfdcd5;margin:35px 0}.lesson-viewer h4{font-size:17px;margin:28px 0 12px}.lesson-viewer ul{padding:0;list-style:none;display:grid;gap:11px}.lesson-viewer li{position:relative;padding-left:27px;color:#465469;line-height:1.75;font-size:14px}.lesson-viewer li::before{content:"";position:absolute;left:3px;top:10px;width:7px;height:7px;border:2px solid var(--blue);border-radius:2px}.practice-box{margin-top:32px;padding:24px 26px;border-radius:10px;background:var(--navy);color:white}.practice-box small{color:#6facff;font:600 10px "Space Grotesk";letter-spacing:2px}.practice-box p{margin:12px 0 0;color:#c7d3e6;line-height:1.8;font-size:14px}.completion{display:flex;align-items:center;justify-content:space-between;margin-top:28px;padding-top:22px;border-top:1px solid #e0ddd6;color:#8993a1;font-size:12px}.completion button{border:0;border-radius:7px;background:#e7effd;color:#145bbf;padding:10px 14px;cursor:pointer}.empty{height:100%;display:grid;place-items:center;color:#7b8492;text-align:center}
.practice{background:var(--navy);color:white}.practice-panel{display:grid;grid-template-columns:.85fr 1.15fr;gap:100px;align-items:start}.practice-panel h2{font-size:clamp(38px,4vw,58px);line-height:1.25;letter-spacing:-2px}.practice-panel ol{list-style:none;margin:0;padding:0;counter-reset:item}.practice-panel li{counter-increment:item;display:grid;grid-template-columns:45px 140px 1fr;gap:15px;padding:22px 0;border-bottom:1px solid rgba(132,163,207,.2);align-items:center}.practice-panel li::before{content:"0" counter(item);font:600 11px "Space Grotesk";color:#5d94e9}.practice-panel li b{font-size:16px}.practice-panel li span{font-size:13px;color:#8ea0bc;line-height:1.7}footer{height:120px;padding:0 max(28px,calc((100vw - var(--max))/2));display:flex;align-items:center;justify-content:space-between;background:#030b19;color:#fff;border-top:1px solid #14233b}footer span{font-weight:700}footer p{font-size:12px;color:#75849a}footer a{font-size:12px;color:#80b9ff}
@media(max-width:980px){.topbar nav{display:none}.hero{grid-template-columns:1fr;gap:55px;padding-top:90px}.hero-terminal{max-width:680px}.path-grid{grid-template-columns:1fr}.path-grid article{min-height:245px}.course-shell{grid-template-columns:310px 1fr}.lesson-viewer{padding:44px 35px}.practice-panel{grid-template-columns:1fr;gap:25px}}
@media(max-width:700px){.topbar{height:64px}.brand b,.back-link span{display:none}.hero{min-height:auto;padding:78px 20px 65px}.hero h1{font-size:49px;letter-spacing:-2px}.hero-terminal{margin:0 -6px}.hero-stats{justify-content:space-between}.hero-stats div{min-width:0}.section{padding:75px 20px}.split{display:block}.search{width:100%;max-width:none;margin-top:25px}.course-shell{display:block}.course-sidebar{border-right:0;border-bottom:1px solid #d8d5cd}.lesson-list{height:280px}.lesson-viewer{min-height:610px;padding:38px 24px}.practice-panel li{grid-template-columns:40px 95px 1fr;gap:8px}footer{height:auto;padding:35px 20px;gap:18px;align-items:flex-start;flex-direction:column}}