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14px;font-weight:600;line-height:1.45;display:flex}.session-teach-result svg{flex:none;margin-top:2px}.session-teach-result.understood{color:#17694a;background:#e2f3ea}.session-teach-result.confused{color:#874a34;background:#fff3ed}.dark-theme .session-teach-result.understood{color:#a9e6c9;background:#1d3a30}.dark-theme .session-teach-result.confused{color:#ffd4c2;background:#382d2d}@media (width<=650px){.session-teach-prompt h1,.session-quiz h1{font-size:calc(16px * var(--text-scale,1))}.session-teach-prompt>div{padding:12px 14px}.session-teach-prompt{margin-bottom:14px}.session-teach textarea{min-height:110px}.session-steps{margin-bottom:16px}.session-actions{z-index:5;bottom:calc(62px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:var(--canvas);margin:12px -18px 0;padding:10px 18px;position:sticky}.session-actions .primary-button{flex:1;justify-content:center}.dark-theme .session-actions{background:#151229;border-color:#302c4a}}.topic-hotspot-5{top:42%;left:2%}.topic-hotspot-6{top:46%;right:2%}.terms-line{color:#6b7280;font-size:calc(11px * var(--text-scale,1));text-align:center;margin:14px 0 0;line-height:1.5}.terms-line .text-button{font-size:inherit;padding:0;text-decoration:underline;display:inline}.terms-overlay{z-index:200;background:#0c0a209e;place-items:center;padding:18px;display:grid;position:fixed;inset:0}.terms-modal{color:#272a3a;background:#fff;border-radius:16px;flex-direction:column;width:min(100%,560px);max-height:min(86vh,680px);display:flex;overflow:hidden;box-shadow:0 24px 70px #08061866}.terms-modal header{border-bottom:1px solid #e6e8f0;justify-content:space-between;align-items:flex-start;gap:12px;padding:20px 22px 14px;display:flex}.terms-modal h2{color:#16182a;font-size:calc(22px * var(--text-scale,1));margin:2px 0 0}.terms-body{gap:14px;padding:18px 22px;display:grid;overflow-y:auto}.terms-body h3{color:#16182a;font:700 calc(13px * var(--text-scale,1)) "DM Sans", sans-serif;margin:0 0 3px}.terms-body p{color:#4b5263;font-size:calc(13px * var(--text-scale,1));margin:0;line-height:1.55}.terms-modal footer{border-top:1px solid #e6e8f0;justify-content:flex-end;padding:14px 22px 18px;display:flex}.dark-theme .terms-line{color:#aaa7be}.dark-theme .terms-modal{color:#e9e8f2;background:#201c38}.dark-theme .terms-modal header,.dark-theme .terms-modal footer{border-color:#39344f}.dark-theme .terms-modal h2,.dark-theme .terms-body h3{color:#f1eff8}.dark-theme .terms-body p{color:#c9c6d7}.app-shell.home-plain:not(.dark-theme),.app-shell.home-plain:not(.dark-theme) .main-content{background:#fff}.terms-consent{color:#4b5263;font-size:calc(12px * var(--text-scale,1));cursor:pointer;align-items:flex-start;gap:9px;margin:14px 0 4px;font-weight:500;line-height:1.45;display:flex}.terms-consent input{accent-color:#4f46e5;flex:none;width:18px;height:18px;margin:1px 0 0}.terms-consent .text-button{font-size:inherit;padding:0;text-decoration:underline;display:inline}.dark-theme .terms-consent{color:#c9c6d7}.onboarding-form label.terms-consent{color:#4b5263;font-size:calc(12px * var(--text-scale,1));align-items:flex-start;gap:10px;margin:16px 0 14px;font-weight:500;display:flex}.onboarding-form .terms-consent input{flex:0 0 18px;width:18px;height:18px;margin:1px 0 0;padding:0}.onboarding-form .terms-consent span{flex:1;min-width:0}.onboarding-screen.dark-theme .onboarding-form label.terms-consent{color:#c9c6d7}.app-shell.fun,.onboarding-screen.fun{--fun:#7566ec;--fun-deep:#5244c9;--fun-soft:#ece8ff;--fun-line:#ddd6fb;--fun-sun:#ffd35c;--fun-sun-deep:#e0a91f;--fun-ink:#2a2356;--fun-paper:#fff;--fun-text:#5244c9;--brand:#7566ec}.app-shell.fun.dark-theme,.onboarding-screen.fun.dark-theme{--fun-soft:#2c2752;--fun-line:#443d78;--fun-ink:#f1eff8;--fun-paper:#221d42;--fun-text:#d6cff8}.app-shell.fun:not(.dark-theme),.app-shell.fun:not(.dark-theme) .main-content{background-color:#faf8ff;background-image:radial-gradient(circle,#e3dcff 1.6px,#0000 1.8px),radial-gradient(circle,#ffe9a8 1.4px,#0000 1.6px);background-position:0 0,22px 26px;background-size:44px 44px,88px 88px}.app-shell.fun:not(.dark-theme) .main-content{background-color:#0000;background-image:none}.fun h1,.fun h2,.fun .chapter-rail-block h2,.fun .flashcard-content,.fun .session-teach-prompt h1,.fun .session-quiz h1{letter-spacing:0;font-family:Fredoka,DM Sans,sans-serif;font-weight:600}.fun .welcome-row h1{color:var(--fun-ink);font-size:clamp(32px,5vw,46px)}.fun .welcome-row h1:after{content:" 👋"}.fun .welcome-copy{color:#6a6392;font-size:calc(15px * var(--text-scale,1))}.fun.dark-theme .welcome-copy{color:#bdb8dc}.fun .primary-button{background:var(--fun);min-height:46px;box-shadow:0 5px 0 var(--fun-deep);font-family:Fredoka,DM Sans,sans-serif;font-size:calc(15px * var(--text-scale,1));border:0;border-radius:16px;padding:0 20px;font-weight:600;transition:transform 80ms,box-shadow 80ms,background .15s}.fun .primary-button:hover:not(:disabled){background:#8273f2}.fun .primary-button:active:not(:disabled){box-shadow:0 1px 0 var(--fun-deep);transform:translateY(4px)}.fun .primary-button:disabled{background:#cfc9f3;box-shadow:0 5px #b5aee2}.fun .quiet-button{border:2px solid var(--fun-line);background:var(--fun-paper);min-height:46px;box-shadow:0 5px 0 var(--fun-line);color:var(--fun-text);font-family:Fredoka,DM Sans,sans-serif;font-size:calc(15px * var(--text-scale,1));border-radius:16px;padding:0 18px;font-weight:600;transition:transform 80ms,box-shadow 80ms}.fun .quiet-button:active:not(:disabled){box-shadow:0 1px 0 var(--fun-line);transform:translateY(4px)}.fun.dark-theme .quiet-button{color:#d6cff8}.fun .chapter-banner{background:linear-gradient(120deg,#6a5be6 0%,#8f7ff5 55%,#b3a4ff 100%);border-radius:28px;box-shadow:0 8px #5244c9}.fun .chapter-banner:before{content:"";pointer-events:none;background-image:radial-gradient(circle,#ffffff8c 1.5px,#0000 2px),radial-gradient(circle,#ffd35ccc 2px,#0000 2.6px);background-position:10px 14px,60px 50px;background-size:70px 60px,150px 110px;position:absolute;inset:0}.fun .banner-copy h2{font-size:calc(30px * var(--text-scale,1))}.fun .banner-link{background:var(--fun-sun);min-height:42px;box-shadow:0 4px 0 var(--fun-sun-deep);color:#4a3600;border-radius:14px;margin-top:6px;padding:0 18px;font-family:Fredoka,DM Sans,sans-serif;font-weight:600;transition:transform 80ms,box-shadow 80ms}.fun .banner-link:active{box-shadow:0 1px 0 var(--fun-sun-deep);transform:translateY(3px)}.fun .banner-mascot{animation:3.2s ease-in-out infinite fun-float}.fun .topic-hotspot{color:#5244c9;background:#fff;border:2px solid #ffffffb3;font-weight:700;box-shadow:0 3px #2a235640}.fun .topic-hotspot:hover{background:var(--fun-sun);color:#4a3600}.fun .chapter-progress{background:#2a235633}.fun .home-rows{box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;border:0;border-radius:28px;padding-inline:0}.fun .subject-chip{border:2px solid var(--fun-line);background:var(--fun-paper);min-height:42px;box-shadow:0 4px 0 var(--fun-line);color:var(--fun-text);font-family:Fredoka,DM Sans,sans-serif;font-size:calc(14px * var(--text-scale,1));padding:0 18px;font-weight:600;transition:transform 80ms,box-shadow 80ms}.fun .subject-chip.selected{border-color:var(--fun-text);background:var(--fun);box-shadow:0 4px 0 var(--fun-deep);color:#fff}.fun .subject-chip:active{box-shadow:0 1px 0 var(--fun-line);transform:translateY(3px)}.fun .chapter-rail-block h2{color:var(--fun-ink);font-size:calc(23px * var(--text-scale,1))}.fun .chapter-rail{gap:14px;padding-bottom:14px}.fun .chapter-thumb,.fun .continue-card,.fun .revision-card{border:2px solid var(--fun-line);background:var(--fun-paper);box-shadow:0 6px 0 var(--fun-line);border-radius:22px;transition:transform .15s,box-shadow .15s}.fun .chapter-thumb:hover,.fun .chapter-thumb:focus-visible,.fun .continue-card:hover,.fun .continue-card:focus-visible{border-color:var(--fun);box-shadow:0 10px 0 var(--fun-line);transform:translateY(-4px)rotate(-1deg)}.fun .chapter-thumb:active,.fun .continue-card:active{box-shadow:0 2px 0 var(--fun-line);transform:translateY(3px)}.fun .chapter-thumb-art{background-image:radial-gradient(circle at 18% 22%,#ffffff59 0 9px,#0000 10px),radial-gradient(circle at 84% 70%,#ffffff38 0 14px,#0000 15px),radial-gradient(circle at 70% 18%,#ffd35ce6 0 4px,#0000 5px);height:112px}.fun .chapter-thumb:hover .chapter-thumb-art svg{animation:.5s fun-wiggle}.fun .chapter-thumb-body strong,.fun .continue-card-body strong{color:var(--fun-ink);font-family:Fredoka,DM Sans,sans-serif;font-size:calc(14px * var(--text-scale,1));font-weight:600}.fun .continue-track,.fun .session-steps li span{background:var(--fun-soft);height:10px}.fun .continue-track i{background:linear-gradient(90deg, var(--fun), #a596ff)}.fun .subtopic-tile{box-shadow:0 5px 0 var(--fun-line);border-radius:20px;transition:transform .12s,box-shadow .12s}.fun .subtopic-tile:hover{transform:translateY(-3px)}.fun .subtopic-tile:active{box-shadow:0 1px 0 var(--fun-line);transform:translateY(3px)}.fun .subtopic-tile.next{box-shadow:0 5px 0 var(--fun)}.fun .subtopic-tile strong{font-family:Fredoka,DM Sans,sans-serif;font-size:calc(14px * var(--text-scale,1))}.fun .teach-card{background:linear-gradient(135deg,#6a5be6,#9282f7);border-radius:22px;box-shadow:0 6px #5244c9}.fun .teach-card img{animation:3s ease-in-out infinite fun-float}.fun .teach-card button{color:#5244c9;box-shadow:0 3px #d6cffa}.fun .session-steps li.done span{background:var(--fun)}.fun .session-steps li.current span{background:linear-gradient(90deg, var(--fun) 55%, var(--fun-soft) 55%)}.fun .flashcard{border:3px solid var(--fun-line);background:var(--fun-paper);min-height:280px;box-shadow:0 8px 0 var(--fun-line);border-radius:28px;animation:.4s fun-flip}.fun .flashcard.flipped{border-color:var(--fun);background:var(--fun-soft);box-shadow:0 8px 0 var(--fun);animation:.4s fun-flip-back}.fun .flashcard-content{color:var(--fun-ink)}.fun .flashcard-marker{background:var(--fun-sun);color:#4a3600;border-radius:999px;padding:4px 12px}.fun .session-teach-prompt img{background:var(--fun-soft);animation:2.6s ease-in-out infinite fun-wobble}.fun .session-teach-prompt>div{border:3px solid var(--fun-line);background:var(--fun-paper);box-shadow:0 6px 0 var(--fun-line);border-radius:22px;position:relative}.fun .session-teach-prompt>div:before{content:"";border-bottom:3px solid var(--fun-line);border-left:3px solid var(--fun-line);background:var(--fun-paper);width:16px;height:16px;position:absolute;top:50%;left:-11px;transform:translateY(-50%)rotate(45deg)}.fun .session-teach textarea{border:3px solid var(--fun-line);border-radius:20px}.fun .session-teach textarea:focus{border-color:var(--fun);outline:0}.fun .answer-option{border:2px solid var(--fun-line);background:var(--fun-paper);min-height:58px;box-shadow:0 4px 0 var(--fun-line);color:var(--fun-ink);border-radius:18px;font-weight:600;transition:transform 80ms,box-shadow 80ms}.fun .answer-option:active:not(:disabled){box-shadow:0 1px 0 var(--fun-line);transform:translateY(3px)}.fun .answer-option.selected{border-color:var(--fun);background:var(--fun-soft);box-shadow:0 4px 0 var(--fun)}.fun .answer-option.answer-correct{color:#145c3b;background:#e0f6ea;border-color:#2fa96f;animation:.45s cubic-bezier(.2,1.5,.4,1) fun-pop;box-shadow:0 4px #2fa96f}.fun .answer-option.answer-incorrect{color:#874a34;background:#fff0e9;border-color:#e98a6a;animation:.4s fun-shake;box-shadow:0 4px #e98a6a}.fun.dark-theme .session-quiz .answer-option.answer-correct{color:#a9e6c9;background:#1d3a30}.fun.dark-theme .session-quiz .answer-option.answer-incorrect{color:#ffd4c2;background:#49352f}.fun .option-letter{border-color:var(--fun-line);background:var(--fun-soft);color:var(--fun-text);font-weight:700}.fun .completion-card{border:3px solid var(--fun-line);background:var(--fun-paper);box-shadow:0 8px 0 var(--fun-line);border-radius:28px;position:relative;overflow:hidden}.fun .completion-icon{background:var(--fun-sun);color:#4a3600;width:64px;height:64px;animation:.5s cubic-bezier(.2,1.5,.4,1) fun-pop}.confetti{pointer-events:none;position:absolute;inset:0;overflow:hidden}.confetti i{opacity:0;border-radius:3px;width:9px;height:14px;animation:1.9s ease-in forwards fun-confetti;position:absolute;top:-14px}.confetti i:nth-child(4n+1){background:#7566ec}.confetti i:nth-child(4n+2){background:#ffd35c}.confetti i:nth-child(4n+3){background:#ff9ec4}.confetti i:nth-child(4n){background:#7fd8b4}@keyframes fun-float{0%,to{transform:translateY(0)}50%{transform:translateY(-9px)}}@keyframes fun-wobble{0%,to{transform:rotate(-5deg)}50%{transform:rotate(5deg)}}@keyframes fun-wiggle{0%,to{transform:rotate(0)}30%{transform:rotate(-12deg)scale(1.1)}65%{transform:rotate(10deg)scale(1.1)}}@keyframes fun-flip{0%{transform:rotateY(80deg)}to{transform:rotateY(0)}}@keyframes fun-flip-back{0%{transform:rotateY(-80deg)}to{transform:rotateY(0)}}@keyframes fun-pop{0%{transform:scale(.9)}60%{transform:scale(1.04)}to{transform:scale(1)}}@keyframes fun-shake{0%,to{transform:translate(0)}25%{transform:translate(-7px)}75%{transform:translate(7px)}}@keyframes fun-confetti{0%{opacity:1;transform:translateY(0)rotate(0)}to{opacity:0;transform:translateY(340px)rotate(540deg)}}@media (width<=650px){.fun .chapter-banner{border-radius:22px}.fun .flashcard{min-height:240px}.fun .session-teach-prompt>div:before{display:none}}@media (prefers-reduced-motion:reduce){.fun .banner-mascot,.fun .teach-card img,.fun .session-teach-prompt img,.fun .flashcard,.fun .flashcard.flipped,.fun .answer-option,.fun .completion-icon{animation:none}.fun .chapter-thumb:hover,.fun .continue-card:hover,.fun .subtopic-tile:hover{transform:none}.confetti{display:none}}.fun .chapter-banner:before{-webkit-mask-image:linear-gradient(90deg,#0000 0 48%,#000 72%);mask-image:linear-gradient(90deg,#0000 0 48%,#000 72%)}.onboarding-screen.fun .onboarding-intro h1{font-family:Fredoka,DM Sans,sans-serif;font-weight:600}.onboarding-screen.fun .onboarding-form{border:3px solid var(--fun-line);background:var(--fun-paper);box-shadow:0 10px 0 var(--fun), 0 30px 70px #00000059;-webkit-backdrop-filter:none;backdrop-filter:none;border-radius:30px;padding:26px}.onboarding-screen.fun .onboarding-form h2{color:var(--fun-ink);font-size:calc(27px * var(--text-scale,1))}.onboarding-screen.fun .onboarding-form .eyebrow{color:var(--fun)}.onboarding-screen.fun .entry-options{background:var(--fun-soft);border:0;border-radius:18px;gap:6px;padding:6px}.onboarding-screen.fun .entry-options button{min-height:40px;color:var(--fun-text);font-family:Fredoka,DM Sans,sans-serif;font-size:calc(13px * var(--text-scale,1));border-radius:13px;font-weight:600}.onboarding-screen.fun .entry-options button.selected{background:var(--fun);color:#fff;box-shadow:0 3px 0 var(--fun-deep)}.onboarding-screen.fun.dark-theme .entry-options button{color:#d6cff8}.onboarding-screen.fun .onboarding-form label{color:var(--fun-ink);font-size:calc(12px * var(--text-scale,1))}.onboarding-screen.fun .onboarding-form input:not([type=checkbox]),.onboarding-screen.fun .onboarding-form select{border:2px solid var(--fun-line);background:var(--fun-paper);height:50px;color:var(--fun-ink);font-size:calc(14px * var(--text-scale,1));border-radius:16px;padding:0 14px}.onboarding-screen.fun .onboarding-form input:not([type=checkbox]):focus,.onboarding-screen.fun .onboarding-form select:focus{border-color:var(--fun);outline:3px solid #7566ec33}.onboarding-screen.fun .signup-subject-pill{border:2px solid var(--fun-line);background:var(--fun-paper);min-height:42px;box-shadow:0 4px 0 var(--fun-line);color:var(--fun-text);padding:0 16px;transition:transform 80ms,box-shadow 80ms}.onboarding-screen.fun .signup-subject-pill span{font-family:Fredoka,DM Sans,sans-serif;font-size:calc(14px * var(--text-scale,1));font-weight:600}.onboarding-screen.fun .signup-subject-pill.selected{border-color:var(--fun-text);background:var(--fun);box-shadow:0 4px 0 var(--fun-deep);color:#fff}.onboarding-screen.fun .signup-subject-pill:active{box-shadow:0 1px 0 var(--fun-line);transform:translateY(3px)}.onboarding-screen.fun .onboarding-form .onboarding-submit{background:var(--fun-sun);width:100%;min-height:54px;box-shadow:0 6px 0 var(--fun-sun-deep);color:#4a3600;font-family:Fredoka,DM Sans,sans-serif;font-size:calc(17px * var(--text-scale,1));border-radius:18px;font-weight:600;transition:transform 80ms,box-shadow 80ms}.onboarding-screen.fun .onboarding-form .onboarding-submit:hover{background:#ffdc7a}.onboarding-screen.fun .onboarding-form .onboarding-submit:active{box-shadow:0 1px 0 var(--fun-sun-deep);transform:translateY(5px)}.onboarding-screen.fun .terms-consent input{accent-color:var(--fun)}.onboarding-screen.fun .terms-modal{border:3px solid var(--fun-line);border-radius:28px}.onboarding-screen.fun .terms-body h3{font-family:Fredoka,DM Sans,sans-serif;font-weight:600}@media (width<=650px){.onboarding-screen.fun .onboarding-form{border-radius:24px;padding:20px}}.fun .topbar{border-bottom:2px solid var(--fun-line)}.fun .top-nav-link{min-height:40px;font-family:Fredoka,DM Sans,sans-serif;font-size:calc(15px * var(--text-scale,1));border-radius:14px;font-weight:600}.fun .top-nav-link.active{background:var(--fun);color:#fff;box-shadow:0 3px 0 var(--fun-deep)}.fun .xp-pill{color:#8a5a00;background:#fff6d6;border:2px solid #ffe08a;font-weight:800}.fun.dark-theme .xp-pill{color:#ffd86b;background:#3a3120;border-color:#6a5720}.fun .activity-header h1{color:var(--fun-ink)}.fun .back-link{color:var(--fun-text);font-weight:700}.fun.dark-theme .back-link{color:#c8c0ff}.fun .text-button{color:var(--fun-text);font-weight:700}.fun.dark-theme .text-button{color:#c8c0ff}.fun .mobile-nav-active{color:var(--fun)!important}.fun .mobile-nav-active svg{color:var(--fun)}.fun .ai-fab{background:linear-gradient(135deg,#6a5be6,#9282f7);font-family:Fredoka,DM Sans,sans-serif;font-weight:600;box-shadow:0 5px #5244c9}.fun .ai-fab:active{transform:translateY(4px);box-shadow:0 1px #5244c9}.fun .question-card,.fun .writing-card,.fun .revise-card,.fun .result-group,.fun .settings-section,.fun .dashboard-panel,.fun .interest-panel,.fun .study-plan,.fun .progress-stats article,.fun .progress-list button,.fun .dashboard-stat,.fun .parent-interest,.fun .study-plan-page .chapter-choice{border:2px solid var(--fun-line);background:var(--fun-paper);box-shadow:0 6px 0 var(--fun-line);border-radius:24px}.fun .result-group.to-study{border-left-width:2px;border-color:var(--fun);box-shadow:0 6px 0 var(--fun)}.fun .progress-list button{transition:transform .12s,box-shadow .12s}.fun .progress-list button:hover{border-color:var(--fun);transform:translateY(-3px)}.fun .progress-list button:active{box-shadow:0 2px 0 var(--fun-line);transform:translateY(3px)}.fun .progress-stats strong,.fun .progress-list strong,.fun .subtopic-list strong,.fun .result-subtopics li span{font-family:Fredoka,DM Sans,sans-serif;font-weight:600}.fun .progress-stats strong{color:var(--fun-text);font-size:calc(24px * var(--text-scale,1))}.fun.dark-theme .progress-stats strong{color:#c8c0ff}.fun .topics-group h2,.fun .chapter-page>h2{color:var(--fun-ink);font-size:calc(23px * var(--text-scale,1))}.fun .topics-grid{gap:16px}.fun .chapter-hero-art{background-image:radial-gradient(circle at 22% 26%,#ffffff59 0 10px,#0000 11px),radial-gradient(circle at 80% 68%,#ffffff38 0 16px,#0000 17px),radial-gradient(circle at 68% 20%,#ffd35ce6 0 5px,#0000 6px);border-radius:24px;box-shadow:0 6px #2a235638}.fun .chapter-hero h1{font-size:calc(30px * var(--text-scale,1))}.fun .diagnostic-banner{background:linear-gradient(120deg,#6a5be6,#9282f7);border-radius:24px;box-shadow:0 6px #5244c9}.fun .diagnostic-banner strong{font-family:Fredoka,DM Sans,sans-serif;font-size:calc(19px * var(--text-scale,1));font-weight:600}.fun .diagnostic-banner-start{background:var(--fun-sun);min-height:44px;box-shadow:0 4px 0 var(--fun-sun-deep);color:#4a3600;font-family:Fredoka,DM Sans,sans-serif;font-size:calc(14px * var(--text-scale,1));border-radius:14px;padding:0 18px;font-weight:600;transition:transform 80ms,box-shadow 80ms}.fun .diagnostic-banner-start:active{box-shadow:0 1px 0 var(--fun-sun-deep);transform:translateY(3px)}.fun .subtopic-list{gap:12px}.fun .subtopic-list button{border:2px solid var(--fun-line);background:var(--fun-paper);box-shadow:0 5px 0 var(--fun-line);border-radius:20px;padding:16px 18px;transition:transform .12s,box-shadow .12s,border-color .12s}.fun .subtopic-list button:hover,.fun .subtopic-list button:focus-visible{border-color:var(--fun);transform:translateY(-3px)}.fun .subtopic-list button:active{box-shadow:0 1px 0 var(--fun-line);transform:translateY(3px)}.fun .subtopic-list strong{color:var(--fun-ink);font-size:calc(15px * var(--text-scale,1))}.fun .subtopic-list em{background:var(--fun-soft);color:var(--fun-text);border-radius:999px;padding:4px 11px;font-weight:700}.fun .question-card h2{font-size:calc(22px * var(--text-scale,1))}.fun .question-topic{background:var(--fun-soft);color:var(--fun-text);border-radius:999px;padding:4px 12px;font-weight:700}.fun .quiz-track{background:var(--fun-soft);border-radius:999px;height:12px}.fun .quiz-track span{background:linear-gradient(90deg, var(--fun), #a596ff);border-radius:999px}.fun .confidence-button{border:2px solid var(--fun-line);min-height:38px;box-shadow:0 3px 0 var(--fun-line);color:var(--fun-text)}.fun .confidence-button.selected{border-color:var(--fun-text);background:var(--fun);box-shadow:0 3px 0 var(--fun-deep);color:#fff}.fun .answer-feedback{border-width:2px;border-radius:18px}.fun .result-group h2{font-size:calc(20px * var(--text-scale,1))}.fun .result-subtopics .quiet-button,.fun .study-plan-step .quiet-button,.fun .study-plan-step .primary-button{min-height:38px;box-shadow:0 3px 0 var(--fun-line);font-size:calc(13px * var(--text-scale,1));border-radius:13px;padding:0 14px}.fun .study-plan-step .primary-button{box-shadow:0 3px 0 var(--fun-deep)}.fun .study-plan-step{border-radius:16px}.fun .study-step-number{background:var(--fun-soft);color:var(--fun-text);border-radius:10px;font-weight:800}.fun .chapter-pill{border:2px solid var(--fun-line);min-height:38px;box-shadow:0 3px 0 var(--fun-line);color:var(--fun-text);border-radius:14px;font-weight:700}.fun .chapter-pill.selected{border-color:var(--fun-text);background:var(--fun);box-shadow:0 3px 0 var(--fun-deep);color:#fff}.fun .settings-form input,.fun .settings-form select,.fun .revise-answer-input,.fun .writing-card textarea{border:2px solid var(--fun-line);border-radius:14px}.fun .site-footer{border-top:2px solid var(--fun-line)}.fun .footer-socials a{border:2px solid var(--fun-line);box-shadow:0 3px 0 var(--fun-line);color:var(--fun-text)}.fun .study-plan{padding:20px}.fun.dark-theme .subtopic-list button,.fun.dark-theme .progress-list button{background:var(--fun-paper)}@media (width<=900px) and (width>=651px){.onboarding-screen.fun .onboarding-layout{grid-template-columns:minmax(0,1fr);gap:26px;min-height:0;margin-top:18px}.onboarding-screen.fun .onboarding-intro{max-width:560px;padding-top:0}.onboarding-screen.fun .onboarding-form{justify-self:center;max-width:520px}}@media (width<=650px){.fun .ai-fab{justify-content:center;width:54px;min-height:54px;padding:0}.fun .ai-fab span{display:none}.fun .chapter-banner{grid-template-columns:minmax(0,1fr) 104px;min-height:0}.fun .chapter-banner .banner-copy{padding:18px 0 20px 18px}.fun .chapter-banner .chapter-kicker{display:none}.fun .chapter-banner .mission-logo-row{margin-bottom:8px}.fun .banner-copy h2{font-size:calc(22px * var(--text-scale,1));line-height:1.15}.fun .banner-copy p{font-size:calc(12px * var(--text-scale,1));margin:6px 0 10px;line-height:1.45}.fun .topic-hotspots{display:none}.fun .chapter-banner .earth-stage{grid-column:2;align-self:end;height:130px}.fun .banner-link{min-height:40px;font-size:calc(13px * var(--text-scale,1));padding:0 14px}.fun .welcome-row h1{font-size:calc(28px * var(--text-scale,1))}.fun .chapter-rail-block h2,.fun .topics-group h2,.fun .chapter-page>h2{font-size:calc(20px * var(--text-scale,1))}.fun .chapter-hero h1{font-size:calc(22px * var(--text-scale,1))}.fun .activity-header h1{font-size:calc(26px * var(--text-scale,1))}.fun .study-plan-page .chapter-pills{scrollbar-width:none;flex-wrap:nowrap;margin:0 -14px;padding:2px 14px 8px;overflow-x:auto}.fun .study-plan-page .chapter-pills::-webkit-scrollbar{display:none}.fun .study-plan-page .chapter-pill{white-space:nowrap;flex:none}.fun .chapter-choice-heading>span{white-space:nowrap}.fun .study-plan{padding:14px}.fun .diagnostic-banner{padding:16px}.fun .diagnostic-banner-start{flex:auto}.fun .result-actions .primary-button,.fun .result-actions .quiet-button{flex:100%}}@media (width<=420px){.onboarding-screen.fun .onboarding-top>small{display:none}.onboarding-screen.fun .entry-options button{font-size:calc(12px * var(--text-scale,1))}.fun .xp-pill{padding:5px 9px}}@media (width>=1500px){.fun .page-wrap:not(.activity-page){width:min(100%,1180px)}.app-shell.top-nav-layout.fun .topbar{padding-inline:max(24px,50% - 548px)}}@media (width<=650px){.fun .study-plan-heading,.fun .month-plan-week-heading{flex-direction:column;align-items:flex-start;gap:4px}.fun .study-plan-heading>span,.fun .month-plan-week-heading>span{text-align:left}}@media (width<=420px){.app-shell.top-nav-layout .topbar-actions{gap:6px}.fun .brand-wordmark{width:76px}}.onboarding-screen.fun{height:auto;min-height:100svh;padding-bottom:40px;overflow:clip visible}.onboarding-screen.fun .earth-scene{height:100svh;position:fixed;inset:0}.onboarding-screen.fun .onboarding-layout{padding-top:12px}.auth-notice{color:#17694a;font-size:calc(13px * var(--text-scale,1));background:#e2f3ea;border-radius:14px;margin:0 0 14px;padding:11px 14px;font-weight:600;line-height:1.45}.onboarding-screen.fun .local-note .text-button{font-size:calc(13px * var(--text-scale,1));padding:6px 0;text-decoration:underline;display:inline}.verify-banner{color:#6b4700;font-size:calc(13px * var(--text-scale,1));background:#fff6d6;border:2px solid #ffe08a;border-radius:16px;flex-wrap:wrap;align-items:center;gap:8px 10px;margin:0 0 16px;padding:11px 16px;line-height:1.45;display:flex}.verify-banner span{flex:220px}.verify-banner .text-button{color:#6b4700;text-decoration:underline}.verify-banner.done{color:#17694a;background:#e2f3ea;border-color:#bfe6d2}.dark-theme .verify-banner{color:#ffd86b;background:#3a3120;border-color:#6a5720}.dark-theme .verify-banner .text-button{color:#ffd86b}.dark-theme .verify-banner.done{color:#a9e6c9;background:#1d3a30;border-color:#2c5a47}.dark-theme .auth-notice{color:#a9e6c9;background:#1d3a30}