:root{color-scheme:dark;--ink:#e9f1fc;--paper:#0b1423;--muted:#a3b3c9;--line:#2c3c53;--lime:#b4f2a0;--green:#8fdaa8;--blue:#13263b}
body{background:var(--paper);color:var(--ink)}p{color:var(--muted)}header{background:#0b1423ef}header .brand-mark{background:#b4f2a0;color:#10261d;border-radius:2px;box-shadow:4px 4px 0 #385342}.brand-cr{color:#b4f2a0}h1,h2,h3{color:#f0f5fd}h1 em{color:#b4f2a0}.eyebrow{color:#aac4e3;font-family:ui-monospace,monospace;font-weight:500;letter-spacing:.09em}.hero{padding-top:80px;padding-bottom:80px}.hero-practice{background:#122339;border:1px solid #304b68;border-radius:6px;transform:none;box-shadow:8px 8px 0 #172c40}.sample-card{background:#0e1929;border:1px solid #2d425d;border-radius:8px;transform:none;box-shadow:none}.sample-answer,.quiz-options button{background:#142337;color:var(--ink);border-color:#344762}.sample-answer b{background:#253b55;color:#cdddf0}.sample-answer:hover,.quiz-options button:hover:not(:disabled){background:#1f3651;border-color:#8eb6e7}.sample-answer.correct,.quiz-options button.correct{background:#173b2d;color:#d6ffe6;border-color:#87d4a2}.sample-answer.wrong,.quiz-options button.wrong{background:#442837;color:#ffdde1;border-color:#e8a1ad}.quiz-options button.selected{background:#223b56;border-color:#9cc8ff}.mini-progress,.progress{background:#24364c}.mini-progress span,.progress span{background:#a4e78f}.sample-feedback{color:#adbed3}.spark{color:#a4e78f}.check-circle{color:#10251c;background:#a4e78f;border-radius:3px}.number-watermark{color:#a6cfed;opacity:.4}.button{border-radius:5px;min-height:48px}.primary,.light{background:#b4f2a0;color:#10251c;border-color:#b4f2a0}.primary:hover,.light:hover{background:#cef9bc}.ghost{border-color:#51657f;color:#e0eafa}.ghost:hover{background:#1b2c42}.text-button{color:#b8d8ff}.button:disabled{opacity:.5}.course-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.course-card,.course-card.moto{background:#121f31;border-color:#33455f;border-radius:8px;padding:28px;display:flex;flex-direction:column}.course-card.featured{border-color:#a1d891;box-shadow:0 -4px 0 #a1d891}.course-card h3{font-size:1.5rem}.course-card>p{min-height:54px}.course-card ul{border-color:#30435c;flex:1}.course-card li:before{color:#a4e78f}.course-card .price strong{font-size:2.1rem;color:#eef7ff}.course-card .price span{font-size:.8rem}.course-heading{min-height:32px;margin-bottom:18px}.outline{border-color:#47657c;border-radius:3px;color:#c0d6ec}.plan-buttons{display:grid;gap:10px}.pricing-note{text-align:center;max-width:760px;margin:25px auto 0;font-size:.86rem}.steps article>span{color:#a4e78f;font-family:ui-monospace,monospace}.study-section{background:#112237;border:1px solid #2d415a}.study-list article{border-color:#2d415a}.study-list article>span{color:#8ea9c6}.closing{background:#162b40;border-top:1px solid #385370}.closing .eyebrow{color:#b4f2a0}.card{background:#121f31;border-color:#33455f}.notice{background:#172f43;border:1px solid #436580;color:#d5e9fc}.notice p{color:inherit}.notice.error{background:#3b2630;border-color:#96616d;color:#ffe1e6}.status{background:#233d47;color:#c3f0d8}.field input,.field select,input,select,textarea{background:#0c192a;color:#e9f1fc;border-color:#526783}.field input[type=checkbox]{accent-color:#b4f2a0}.tabs .active{background:#b4f2a0;color:#10251c}.reference{color:#c4e8fa;overflow-wrap:anywhere}.inline-link{color:#c4ddff}.skip{background:#b4f2a0;color:#10251c}.trust-section{border-top:1px solid var(--line)}.mobile-nav{display:none}.topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.topic-card h3{font-size:1.12rem}.topic-card p{font-size:.85rem}.topic-card .button{width:100%}.course-switch{margin-bottom:24px}.source-list li{margin-bottom:16px;overflow-wrap:anywhere}.topic-progress{margin:16px 0;padding-bottom:14px;border-bottom:1px solid var(--line)}.topic-progress strong{display:block}.topic-progress .progress{margin:10px 0}.topic-progress small{color:var(--muted)}a,button,input,select{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible,select:focus-visible{outline:3px solid #b4f2a0;outline-offset:4px}
@media(max-width:1050px){.course-grid{grid-template-columns:1fr}.course-card>p{min-height:0}.course-card{padding:28px}.hero{gap:34px}.course-card .button{justify-content:center}.plan-buttons{grid-template-columns:1fr 1fr}.course-card small{text-align:left}}
@media(max-width:700px){body{padding-bottom:76px}.hero{padding-top:40px;padding-bottom:44px}.hero h1{font-size:2.65rem;line-height:1.13}.hero-practice{padding:18px;margin-right:6px;box-shadow:5px 5px 0 #172c40}.hero .actions .button{justify-content:center}.mobile-nav{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;inset:auto 0 0;z-index:20;gap:0;background:#0c1728f7;border-top:1px solid #415773;padding:8px 8px max(8px,env(safe-area-inset-bottom));backdrop-filter:blur(12px)}.mobile-nav a{min-height:44px;display:grid;place-items:center;font-size:.76rem;border-radius:5px;color:#b4c6dd}.mobile-nav a[aria-current=page]{background:#234236;color:#ceffc2}.topic-grid{grid-template-columns:1fr}.plan-buttons{grid-template-columns:1fr}.course-card{padding:24px}.app-title{gap:14px}.app-shell{padding-bottom:42px}.stats{grid-template-columns:1fr}.stat{display:flex;gap:18px;align-items:center}.stat span{font-size:.85rem}.stat strong{min-width:65px}.quiz-top{flex-wrap:wrap}.reader-nav .button{padding:11px}.trust-strip{font-size:.74rem}.app-title h1{overflow-wrap:anywhere}footer>div{flex-wrap:wrap}.actions{gap:12px}.sample-card{padding:18px}}