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16px;min-height:0;padding-top:10px;padding-bottom:6px}.brand{order:1}.topbar-action{order:2;margin-left:auto}.main-nav{scrollbar-width:none;flex-basis:100%;order:3;margin:0 -6px;padding:2px 0 4px;overflow-x:auto}.main-nav::-webkit-scrollbar{display:none}.intro,.account-layout{grid-template-columns:1fr}.steps{grid-template-columns:1fr;gap:24px}.steps:before{width:2px;height:auto;inset:17px auto 17px 17px}.steps li{padding-left:56px}.steps li:before{position:absolute;top:0;left:0}.status-row{grid-template-columns:1fr auto}.status-row a{grid-column:1/-1}.layer-list div{grid-template-columns:1fr;gap:6px}}@media(max-width:640px){.content-page{padding-top:32px}.next-card{flex-direction:column;align-items:stretch;padding:20px}.next-card .icon-tile{display:none}.join-inline .input{flex:1;width:auto}.section-toolbar{flex-direction:column;align-items:flex-start}.architecture-flow{flex-direction:column;align-items:flex-start;gap:12px}.architecture-flow>svg{transform:rotate(90deg)}.main-nav{gap:0;font-size:13px}.main-nav a{padding:7px 9px}.user-chip span:last-child{display:none}.user-chip{padding:3px}.brand small{display:none}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before{transition:none!important;animation:none!important}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}:root{color-scheme:dark;--bg: #080f1b;--surface: #0e192b;--surface-2: #172742;--surface-sunk: #0a1424;--line: #203653;--line-strong: #4c6c97;--text: #f6f7fc;--muted: #b5cbed;--subtle: #9eb9df;--accent: #087cff;--accent-hover: #258dff;--accent-text: #39aaff;--accent-soft: #12376a;--on-accent: #fff;--field: #0a172a;--scrim: #080f1bf2;--glow: 0 8px 24px -10px #087cffb3;--true: #12dca3;--true-ink: #003e32;--true-text: #39e9bc;--true-soft: #0d3a34;--false: #ff5f83;--false-ink: #590e27;--false-text: #ff8fa8;--false-soft: #402033;--success: #4de3b2;--danger: #ff6a7e;--danger-soft: #42202c;--r-card: 20px;--r-control: 15px}body{background:radial-gradient(ellipse at 100% 80%,#06245b50,transparent 45%),#080f1b}#root{min-height:100dvh;overflow:clip}.shell,.topbar-inner{max-width:1600px;padding-inline:48px}.topbar{position:relative;background:linear-gradient(110deg,#080e18,#070e19);-webkit-backdrop-filter:none;backdrop-filter:none}.topbar-inner{min-height:78px;gap:34px}.brand{font-size:26px;gap:13px;letter-spacing:-.045em}.brand-mark{width:40px;height:40px;border-radius:11px;background:linear-gradient(140deg,#198eff,#0061ff);box-shadow:inset 0 1px 1px #a2d2ff80,0 5px 16px -9px #058eff}.brand-mark svg{width:27px;height:27px}.brand small{font-size:15px;letter-spacing:-.02em;font-weight:550;color:var(--muted);margin-left:2px}.main-nav{border-left:1px solid #2b3b53;padding-left:30px;gap:10px;font-size:16px}.main-nav a{padding:12px 20px;gap:12px;color:#d8e6fc}.main-nav a.active{color:#fff;background:linear-gradient(120deg,#084caa,#12356b);box-shadow:inset 0 1px 1px #4e92ed26}.main-nav a.active svg{color:#6fcaff;filter:drop-shadow(0 0 5px #0c8fff60)}.main-nav a:hover{background:#122541}.user-chip{max-width:260px;padding:5px 15px 5px 6px;font-size:15px;border-color:#263b5b;gap:10px;background:#0b1422}.user-chip>span:nth-child(2){white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.avatar{width:35px;height:35px;background:linear-gradient(145deg,#1592ff,#0062ff);box-shadow:inset 0 1px 2px #94d4ff90}.button{min-height:52px;border-radius:15px;padding:12px 22px;font-size:17px;gap:12px;transition:transform .16s cubic-bezier(.16,1,.3,1),border-color .18s ease-out,background-color .18s 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a{display:inline-flex;align-items:center;gap:10px}.content-page{min-height:calc(100dvh - 235px)}.education-badge{display:inline-flex;align-items:center;gap:10px;border:1px solid #00a0ff;border-radius:999px;padding:9px 16px;background:#00265365;box-shadow:inset 0 0 12px #005acd30;color:#18bdff;font-size:16px;font-weight:750}.landing-page{position:relative;isolation:isolate;padding:56px 26px 20px}.landing-page>.brand-waves path:last-child{opacity:.2}.landing-page .intro{gap:48px;padding:14px 0 38px;grid-template-columns:1fr 1.03fr;min-height:530px}.intro-copy .education-badge{margin-bottom:16px}.intro h1{font-size:clamp(40px,3.65vw,65px);line-height:1.12;letter-spacing:-.035em;margin-bottom:22px}.intro h1 em,.how-to h2 em,.auth-copy h1 em{background:linear-gradient(100deg,#21ccff,#0084ff);color:#169dff;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.intro-copy>p{font-size:19px;line-height:1.55;max-width:51ch;margin-bottom:29px}.intro .quiz-actions{gap:18px;display:flex;flex-wrap:wrap}.intro .quiz-actions .button{min-height:57px;border-radius:24px;font-size:18px;padding-inline:25px}.hero-benefits{list-style:none;margin:25px 0 0;padding:0;display:flex;gap:29px;font-size:14px;font-weight:650}.hero-benefits li{display:flex;align-items:center;gap:8px;white-space:nowrap}.hero-benefits svg{width:23px;height:23px;padding:4px;background:linear-gradient(145deg,#1a5098,#0a2042);border-radius:50%;color:#d3eeff}.hero-preview-art{position:relative;padding:28px 0 30px 28px;perspective:1200px}.hero-preview-art:before{content:"";position:absolute;inset:-14px -20px 10px -35px;border-radius:49% 43% 44% 32%;transform:rotate(-28deg);background:linear-gradient(150deg,#0664dc,#082c67 38%,#06152d 75%);border:1px solid #287bec;box-shadow:inset 0 8px 15px #2f8dff55;z-index:-1}.hero-preview-art .preview{position:relative;min-height:345px;border:1px solid #4d9fff;border-radius:25px;padding:28px 29px 30px;background:linear-gradient(135deg,#0c254c,#08182c 60%,#102548);transform:rotateY(-13deg) rotate(-3deg) skew(-5deg);box-shadow:inset 0 0 5px 3px #327ee446,14px 14px 26px #00091a70}.preview-head{margin-bottom:28px}.preview-head .pill{border:0;background:#173e76;color:#79bdff;font-size:15px}.preview-ring{width:64px;height:64px;border-width:6px;border-color:#05a6ff #05a6ff #05a6ff #234b93;font-size:28px;color:#fff}.preview-question{font-size:clamp(24px,2.1vw,36px);line-height:1.15;margin-bottom:30px}.preview-answers{gap:17px}.preview-answers>span{min-height:68px;border-radius:17px;font-size:20px}.preview-answers .true{background:linear-gradient(170deg,#09da91,#11cfa3);box-shadow:inset 0 1px 2px #8effd280,0 6px 16px #00bc7d30}.preview-answers .false{background:linear-gradient(170deg,#ee3458,#ff5479);color:#fff;box-shadow:inset 0 1px 2px #ffb1c380}.preview-foot{font-size:14px;font-weight:550;margin-top:21px;gap:9px}.preview-bar{height:12px;background:#142e56}.preview-bar 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