@font-face{font-family:Sprint;src:url('assets/roboto-regular.ttf') format('truetype');font-style:normal;font-weight:400;font-display:swap}
@font-face{font-family:Sprint;src:url('assets/roboto-bold.ttf') format('truetype');font-style:normal;font-weight:700;font-display:swap}
@font-face{font-family:Sprint;src:url('assets/roboto-black.ttf') format('truetype');font-style:normal;font-weight:900;font-display:swap}
:root{--blue:#176bff;--ink:#162c42;--muted:#607488;--line:#dce4ec;--paper:#fcfdfb;--soft:#f0f5fb;--mint:#deefcf;--radius:24px;scroll-behavior:smooth;scroll-padding-top:110px}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Sprint,sans-serif;font-weight:400;line-height:1.6}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}a{color:inherit;text-decoration:none}button{cursor:pointer}button:disabled{cursor:not-allowed}[hidden]{display:none!important}img,svg{display:block;max-width:100%}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.1;letter-spacing:-.04em}h1{font-weight:900}h2{font-size:clamp(2.25rem,4.4vw,3.6rem);font-weight:900}h3{font-weight:700}p{color:var(--muted)}.container{width:min(1180px,calc(100% - 80px));margin-inline:auto}.section{padding-block:110px}.eyebrow{font-size:.69rem;font-weight:700;letter-spacing:.12em;display:flex;align-items:center;gap:10px;color:var(--muted)}.status-dot{height:7px;width:7px;flex:0 0 7px;border-radius:50%;background:#4d9763}.button{display:inline-flex;justify-content:center;align-items:center;gap:22px;min-height:56px;padding:15px 24px;background:var(--blue);color:white;border:1px solid var(--blue);border-radius:50px;font-weight:700;font-size:.92rem;line-height:1.4;transition:background .2s,transform .2s;white-space:normal}.button:hover{background:#0955dc;transform:translateY(-2px)}.button span{font-size:1.25rem;line-height:1}.button-small{min-height:44px;padding:10px 19px;font-size:.8rem;gap:15px}.text-link{font-size:.9rem;font-weight:700;display:inline-flex;align-items:center;gap:12px;min-height:44px}.text-link:hover,.desktop-nav a:hover,.back-top:hover{color:var(--blue)}:focus-visible{outline:3px solid #e89e38;outline-offset:5px}.skip-link{position:fixed;top:8px;left:8px;z-index:20;padding:10px 18px;background:var(--ink);color:white;transform:translateY(-150%);border-radius:8px}.skip-link:focus{transform:none}
.header{border-bottom:1px solid var(--line);background:rgba(252,253,251,.95);position:sticky;top:0;z-index:10;backdrop-filter:blur(16px)}.header-inner{height:86px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:9px;font-size:1.3rem;letter-spacing:-.03em;white-space:nowrap;font-weight:900}.brand img{object-fit:contain}.brand-light{font-weight:400}.desktop-nav{display:flex;gap:30px;font-size:.81rem;color:var(--muted)}.desktop-nav a{padding:10px 0}.menu-toggle,.mobile-nav{display:none}.hero{display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:center;padding-top:65px;padding-bottom:80px;min-height:780px}.hero-copy{padding-bottom:12px;position:relative}.hero h1{font-size:clamp(4rem,6.7vw,6.15rem);line-height:1.03;letter-spacing:-.062em;margin-top:28px;position:relative}.hero-blue{color:var(--blue)}.spark{position:absolute;color:var(--blue);font-size:40px;top:2px;right:2px;transform:rotate(-10deg)}.hero-description{font-size:1.2rem;line-height:1.55;margin-top:26px;color:var(--ink)}.hero-secondary{font-size:.95rem;max-width:410px;line-height:1.75;margin-top:14px}.hero-actions{display:flex;align-items:center;gap:23px;flex-wrap:wrap;margin-top:30px}.hero-facts{display:flex;gap:17px;flex-wrap:wrap;font-size:.73rem;color:var(--muted);margin-top:29px}.hero-facts span{display:flex;align-items:center;gap:5px}.hero-facts svg{width:15px;height:15px;stroke:#2e6a43;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.hero-visual{position:relative;display:flex;justify-content:center;padding-top:30px;padding-bottom:26px;min-width:0}.orbit{position:absolute;background:#e9f0fb;border-radius:50%;width:540px;height:540px;top:90px;left:50%;transform:translateX(-50%);z-index:-1}.orbit-two{width:370px;height:370px;top:170px;background:#e1ebf9}.phone{width:280px;flex:0 0 280px;height:594px;border:7px solid #172d41;border-radius:42px;background:#f4f8fc;box-shadow:10px 20px 48px #14315129,inset 0 0 0 2px #a9b9c9;position:relative;overflow:hidden;transform:rotate(3deg)}.phone-camera{position:absolute;top:9px;left:50%;transform:translateX(-50%);width:66px;height:15px;background:#172d41;border-radius:20px;z-index:2}.phone-status{padding:15px 17px 9px;display:flex;justify-content:space-between;font-size:9px;font-weight:700;color:#173045}.phone-content{padding:12px 15px}.phone-brand{display:flex;align-items:center;gap:8px}.phone-brand strong{font-size:12px;display:block;line-height:1.3}.phone-brand small{font-size:8px;color:#74889b;display:block;margin-top:2px}.avatar{margin-left:auto;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;color:var(--blue);background:#e3edff;font-size:10px}.phone-greeting{margin-top:26px}.phone-greeting strong{display:block;font-size:19px;letter-spacing:-.02em}.phone-greeting span{font-size:10px;color:#718497;display:block;margin-top:4px}.phone-plan{margin-top:18px;padding:17px 12px;background:var(--blue);color:white;border-radius:17px;display:flex;align-items:center;gap:10px}.phone-plan small{font-size:7px;letter-spacing:.06em;display:block;opacity:.8}.phone-plan strong{display:block;font-size:12px;margin-block:2px}.phone-plan div>span{display:block;font-size:8px;opacity:.8}.mini-spark{font-size:27px;color:#c5e3ff}.phone-section-title{font-size:12px;font-weight:700;margin-top:23px;margin-bottom:10px;display:flex;justify-content:space-between}.phone-section-title>span{color:#8fa0af;font-size:8px;font-weight:400;align-self:center}.phone-course{display:flex;align-items:center;gap:9px;padding:12px 9px;background:white;border-radius:13px;margin-bottom:8px}.course-icon{height:32px;width:32px;border-radius:10px;display:grid;place-items:center;font-size:14px;font-weight:700;flex-shrink:0}.blue-icon{background:#e7efff;color:var(--blue)}.purple-icon{background:#f2eaff;color:#9060c5}.phone-course strong{font-size:9px;display:block}.phone-course small{font-size:7px;color:#74889b;display:block}.phone-course div>span{font-size:7px;color:var(--blue);font-weight:700;display:block;margin-top:3px}.phone-review{background:white;border-radius:13px;padding:12px;font-size:9px}.phone-review strong,.phone-review>span{display:block}.phone-review>span{font-size:8px;color:#74889b;margin-top:3px}.review-dots{display:flex;gap:5px;margin-bottom:6px}.review-dots i{height:5px;width:18px;border-radius:9px;background:#b2d7c0}.review-dots i:last-child{background:#e2efe7}.phone-nav{position:absolute;bottom:13px;width:100%;background:#f0f2f8;padding:9px 13px 14px;display:flex;justify-content:space-around}.phone-nav>span{color:#82909e;font-size:18px;line-height:1.2;text-align:center}.phone-nav small{display:block;font-size:7px;margin-top:2px}.phone-nav .active{color:var(--blue)}.phone-home{height:3px;width:72px;background:#172d41;border-radius:10px;position:absolute;bottom:6px;left:50%;transform:translateX(-50%)}.floating-note{position:absolute;display:flex;align-items:center;gap:11px;padding:14px 16px;background:white;box-shadow:0 12px 30px #17304612;border:1px solid #e9eef1;border-radius:13px;z-index:3;max-width:280px}.floating-note strong{display:block;font-size:11px;line-height:1.5}.floating-note div>span{display:block;font-size:9px;color:var(--muted);margin-top:2px}.note-top{top:0;left:20px;transform:rotate(-3deg)}.note-bottom{bottom:21px;right:0;transform:rotate(-3deg);background:#e5f0d3;border-color:#dce8c8}.note-symbol{background:#e9f0ff;color:var(--blue);height:33px;width:33px;display:grid;place-items:center;border-radius:9px;font-size:24px}.note-check{height:30px;width:30px;border-radius:50%;background:#2e6a43;color:white;display:grid;place-items:center;font-size:18px}.visual-caption{position:absolute;bottom:-7px;left:50%;transform:translateX(-50%);font-size:9px;color:#8c9baa;white-space:nowrap}
.principles{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#f5f7f2}.principles-inner{display:grid;grid-template-columns:1.25fr 1fr 1fr 1fr;align-items:center;gap:30px;padding-block:33px}.principles p{font-size:.85rem;line-height:1.5}.principles p strong{color:var(--ink);font-weight:700}.principles-inner>span{font-size:1.15rem;letter-spacing:-.03em;border-left:1px solid var(--line);padding-left:35px;display:flex;justify-content:space-between;align-items:center;gap:12px}.principles i{font-size:.65rem;font-style:normal;color:var(--muted);align-self:start}.section-top{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:48px}.section-top h2{margin-top:18px}.section-top>p{max-width:340px;font-size:.92rem;line-height:1.7}.muted-heading{color:#80909e}.learning-layout{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:start}.learning-tabs{display:flex;flex-direction:column;padding-top:4px}.learning-tab{width:100%;display:flex;align-items:center;gap:20px;padding:26px 22px;text-align:left;background:transparent;border:0;border-bottom:1px solid var(--line);color:var(--ink);border-radius:0}.learning-tab.selected{background:#eef3fb;border:1px solid #dde6f4;border-radius:15px}.learning-tab strong{display:block;font-size:1rem;letter-spacing:-.015em;line-height:1.5}.learning-tab small{display:block;color:var(--muted);font-size:.8rem;font-weight:400;margin-top:3px}.tab-number{font-size:.77rem;color:#94a4b5}.selected .tab-number,.selected .tab-arrow{color:var(--blue)}.tab-arrow{font-size:23px;margin-left:auto;color:#9caab7;flex-shrink:0}.learning-panel{background:#f0f5ec;border-radius:24px;padding:34px 36px;min-height:445px}.panel-label{display:flex;gap:8px;align-items:center;font-size:.61rem;color:#628164;letter-spacing:.09em;font-weight:700}.learning-panel h3{font-size:1.9rem;margin-top:20px;letter-spacing:-.035em}.learning-panel>p{font-size:.83rem;margin-top:14px;max-width:400px;line-height:1.75}.plan-stack{display:flex;flex-direction:column;gap:8px;margin-top:24px}.plan-stack>div{background:white;border-radius:11px;display:flex;align-items:center;gap:12px;padding:14px;font-size:.77rem}.plan-stack small{margin-left:auto;font-size:.64rem;color:var(--muted)}.stack-dot{height:11px;width:11px;border-radius:50%;flex:0 0 11px}.mint{background:#a9d7aa}.sky{background:#7da5f0}.lilac{background:#c0a3df}.panel-footnote{font-size:.62rem;color:#6a806d;display:block;margin-top:19px;line-height:1.6}.review-timeline{display:flex;gap:8px;justify-content:space-between;margin-block:35px 20px}.review-timeline span{font-size:.65rem;flex:1;text-align:center;color:var(--muted)}.review-timeline b{display:grid;place-items:center;height:52px;width:52px;background:white;border:1px solid #d3e3ce;border-radius:50%;font-size:1.2rem;color:#447b46;margin:0 auto 7px}.panel-note{padding:15px;background:white;border-radius:12px;font-size:.8rem;color:#527257}.chat-preview{margin-top:25px;font-size:.82rem;display:flex;flex-direction:column;gap:10px}.chat-learner{background:var(--blue);color:white;align-self:end;padding:10px 15px;border-radius:15px 15px 4px 15px}.chat-tutor{padding:15px 17px;background:white;border-radius:15px 15px 15px 4px;align-self:start;line-height:1.8}
.trial-section{background:#eaf0fc;padding-block:90px;position:relative;overflow:hidden}.trial-section::after{content:'✦';position:absolute;bottom:-125px;left:3%;font-size:460px;line-height:1;color:#e0e8f9;z-index:0;transform:rotate(-10deg)}.trial-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:90px;align-items:center;position:relative;z-index:1}.trial-copy h2{margin-top:20px}.trial-copy>p{font-size:.95rem;line-height:1.75;margin-top:22px;max-width:340px}.trial-note{margin-top:30px;font-size:.77rem;color:var(--muted);line-height:1.7;position:relative;padding-left:25px}.trial-note span{position:absolute;left:0;top:1px;font-size:20px;color:var(--blue)}.quiz-card{background:white;padding:30px;border:1px solid #d9e3f5;border-radius:24px;box-shadow:0 14px 36px #244c9021}.quiz-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:22px;font-size:.64rem;letter-spacing:.04em;font-weight:700;color:var(--blue)}.quiz-topic{font-size:.62rem;letter-spacing:0;background:#f2f5fa;color:var(--muted);border-radius:50px;padding:5px 10px;white-space:nowrap}.quiz-card fieldset{border:0;margin:0;padding:0;min-width:0}.quiz-card legend{font-size:1.35rem;letter-spacing:-.025em;font-weight:700;line-height:1.5;padding:0;margin-bottom:19px;max-width:100%}.blank{color:var(--blue)}.quiz-option{display:flex;align-items:center;gap:12px;position:relative;border:1px solid var(--line);border-radius:12px;padding:12px 13px;margin-bottom:9px;cursor:pointer;min-height:51px;font-size:.83rem;transition:background .15s,border-color .15s}.quiz-option input{position:absolute;opacity:0;width:100%;height:100%;inset:0;margin:0;cursor:pointer}.quiz-option:has(input:focus-visible){outline:3px solid #e89e38;outline-offset:3px}.option-letter{width:25px;height:25px;background:#f2f5fa;color:#6c839a;border-radius:50%;display:grid;place-items:center;font-size:.65rem;font-weight:700;flex:0 0 25px}.option-indicator{width:14px;height:14px;border:1.5px solid #bfcedb;border-radius:50%;margin-left:auto}.quiz-option.chosen{border-color:var(--blue);background:#eff4ff}.chosen .option-letter{background:var(--blue);color:white}.chosen .option-indicator{background:var(--blue);border-color:var(--blue);box-shadow:inset 0 0 0 3px white}.quiz-option.correct{background:#eaf5ec;border-color:#56a66f}.correct .option-letter{background:#2c8451;color:white}.quiz-option.incorrect{background:#fff0ec;border-color:#d98672}.incorrect .option-letter{background:#b75139;color:white}.quiz-submit{width:100%;margin-top:13px;border-radius:12px;min-height:51px}.quiz-submit:disabled{background:#e8edf5;border-color:#e8edf5;color:#77889c;transform:none}.quiz-feedback{margin-top:17px;background:#f0f5ec;border-radius:12px;padding:15px;font-size:.81rem;line-height:1.7}.quiz-feedback strong{color:#2c734a}.quiz-feedback p{margin-top:4px;font-size:.78rem}.reset-quiz{background:transparent;border:0;color:var(--blue);font-size:.82rem;font-weight:700;padding:15px 2px 0;min-height:44px}
.parts-layout{display:grid;grid-template-columns:1fr 1fr;gap:50px}.parts-group-heading{display:flex;align-items:center;gap:13px;margin-bottom:20px}.parts-group-heading h3{font-size:1.4rem;letter-spacing:-.025em}.parts-group-heading>span:last-child{font-size:.65rem;color:var(--muted);margin-left:auto;border:1px solid var(--line);padding:3px 10px;border-radius:50px}.group-icon{height:39px;width:39px;border-radius:11px;background:#eaf0fb;color:var(--blue);display:grid;place-items:center;font-size:19px;font-weight:700}.part-row{display:flex;align-items:center;gap:22px;border-top:1px solid var(--line);padding:19px 4px;min-height:78px}.part-row>b{font-size:.75rem;color:#8c9fb0;font-weight:400}.part-row>span{font-size:.92rem;line-height:1.5}.part-row small{display:block;font-size:.7rem;color:var(--muted);margin-top:2px}.mock-note{border-top:1px solid var(--line);background:#f3f6ec;padding:17px 18px;border-radius:0 0 12px 12px;min-height:79px}.mock-note strong{display:block;font-size:.81rem}.mock-note span{display:block;font-size:.7rem;color:var(--muted);margin-top:4px}
.android-section{background:#122d45;min-height:430px;border-radius:28px;padding:58px 65px;display:grid;grid-template-columns:1.4fr 1fr;align-items:center;gap:50px;position:relative;overflow:hidden}.android-section .eyebrow{color:#a0b7cb}.android-section h2{color:white;font-size:3.15rem;margin-top:20px}.android-copy>p{color:#b1c3d3;max-width:400px;font-size:.88rem;line-height:1.8;margin-top:18px}.android-actions{display:flex;align-items:center;flex-wrap:wrap;gap:16px;margin-top:26px}.button-light{background:#dfefbd;border-color:#dfefbd;color:#1e402c;font-size:.82rem}.button-light:hover{background:#c7e69b;color:#1e402c}.version{color:#9bb3c6;font-size:.68rem}.android-copy .download-note{font-size:.67rem;color:#90a9bc;margin-top:13px;max-width:450px}.android-art{display:grid;place-items:center;position:relative;min-height:250px}.art-disc{background:#fcfdfb;width:240px;height:240px;border-radius:50%;display:grid;place-items:center;box-shadow:0 0 0 35px #ffffff05,0 0 0 70px #ffffff03}.art-disc img{object-fit:contain}.art-tag{position:absolute;bottom:12px;right:-12px;background:#e2edc8;color:#3c5a38;padding:10px 16px;transform:rotate(-10deg);font-size:.69rem;font-weight:700;letter-spacing:.055em;white-space:nowrap}.art-stars{position:absolute;top:-10px;left:5px;color:#d8e9ba;font-size:55px;line-height:1}.art-stars span{position:absolute;top:38px;left:-10px;font-size:20px}
.faq-section{display:grid;grid-template-columns:.85fr 1.15fr;gap:90px}.faq-section h2{margin-top:18px}.faq-section>div>p{margin-top:20px;font-size:.9rem}.faq-list details{border-bottom:1px solid var(--line);padding-block:20px}.faq-list details:first-child{padding-top:0}.faq-list summary{list-style:none;cursor:pointer;display:flex;gap:20px;align-items:center;justify-content:space-between;line-height:1.6;font-size:.92rem;font-weight:700;min-height:40px}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary>span{color:var(--muted);font-size:23px;font-weight:400;transition:transform .2s}.faq-list details[open] summary>span{transform:rotate(45deg)}.faq-list details p,.faq-list ol{font-size:.8rem;color:var(--muted);line-height:1.8;margin-top:10px;padding-right:20px}.faq-list ol{padding-left:20px}.faq-list li{margin-block:7px}.footer{background:#f4f6f1;border-top:1px solid var(--line);padding-block:40px 20px}.footer-top{display:flex;align-items:center;justify-content:space-between;gap:30px;padding-bottom:35px}.footer-top>p{font-size:.95rem;line-height:1.5;color:var(--muted)}.footer-top strong{color:var(--ink)}.back-top{font-size:.8rem;display:flex;gap:20px;align-items:center;min-height:44px}.footer-bottom{display:flex;justify-content:space-between;gap:24px;border-top:1px solid var(--line);padding-top:18px;color:#8493a2;font-size:.64rem}
@media(min-width:1500px){.hero{gap:80px}.hero h1{font-size:6.5rem}}
@media(max-width:1100px){.container{width:calc(100% - 56px)}.hero{gap:25px;min-height:720px}.hero h1{font-size:5rem}.spark{right:0;font-size:27px}.hero-secondary{max-width:350px}.hero-actions{gap:16px}.hero-actions .button{padding-inline:20px;font-size:.8rem}.hero-actions .text-link{font-size:.8rem}.orbit{width:430px;height:430px;top:135px}.orbit-two{width:340px;height:340px;top:180px}.note-top{left:0}.note-bottom{right:-3px}.floating-note{padding:12px;max-width:225px}.floating-note strong{font-size:10px}.floating-note div>span{font-size:8px}.learning-layout{gap:35px}.learning-tab{padding:24px 13px;gap:14px}.learning-tab strong{font-size:.88rem}.learning-panel{padding:28px}.plan-stack>div{flex-wrap:wrap;gap:8px}.plan-stack small{font-size:.6rem}.trial-layout{gap:50px}.android-section{padding:45px}.android-section h2{font-size:2.8rem}.art-disc{width:200px;height:200px}.art-disc img{width:145px;height:145px}.faq-section{gap:45px}.principles-inner{gap:16px}.principles-inner>span{padding-left:18px;font-size:1rem}}
@media(max-width:760px){:root{scroll-padding-top:88px}.container{width:calc(100% - 40px)}.header-inner{height:72px;gap:12px}.brand{font-size:1.15rem}.brand img{width:32px;height:32px}.desktop-nav{display:none}.header .button-small{margin-left:auto;min-height:39px;padding:9px 13px;font-size:.7rem;gap:9px}.menu-toggle{display:flex;flex-direction:column;justify-content:center;gap:6px;border:0;width:40px;height:44px;align-items:center;background:transparent;padding:8px;flex-shrink:0}.menu-toggle span{width:20px;height:2px;background:var(--ink)}.mobile-nav{display:flex;flex-direction:column;padding:0 20px 15px;gap:2px;border-top:1px solid var(--line)}.mobile-nav a{padding:12px;font-size:.92rem}.hero{display:flex;flex-direction:column;align-items:stretch;gap:30px;padding-top:45px;padding-bottom:55px;min-height:0}.hero .eyebrow{font-size:.58rem;letter-spacing:.085em}.hero h1{font-size:clamp(3.4rem,10.8vw,5rem);line-height:1.04;margin-top:23px;max-width:500px}.spark{right:18px;top:6px;font-size:28px}.hero-description{font-size:1.09rem;margin-top:22px}.hero-secondary{font-size:.87rem;margin-top:10px;max-width:470px}.hero-actions{margin-top:25px;gap:14px}.hero-actions .button{font-size:.81rem;padding:15px 20px;min-height:52px}.hero-actions .text-link{font-size:.77rem}.hero-facts{gap:11px;font-size:.64rem;margin-top:22px}.hero-facts svg{width:13px;height:13px}.hero-visual{width:100%;max-width:520px;align-self:center;padding-top:42px;padding-bottom:34px}.phone{width:262px;flex-basis:262px;height:570px}.phone-greeting{margin-top:24px}.phone-content{padding-inline:13px}.phone-section-title{margin-top:18px}.phone-plan{padding-block:15px}.phone-brand strong{font-size:11px}.phone-course strong{font-size:8px}.orbit{width:min(430px,100%);height:430px;top:95px}.orbit-two{width:min(330px,85%);height:330px;top:145px}.note-top{top:11px;left:0;max-width:210px}.note-bottom{bottom:22px;right:0;max-width:223px}.floating-note{padding:10px 12px;gap:8px}.floating-note strong{font-size:9px}.floating-note div>span{font-size:8px}.note-symbol{height:28px;width:28px}.visual-caption{font-size:8px;bottom:0}.principles-inner{grid-template-columns:1fr 1fr;gap:21px;padding-block:26px}.principles p{font-size:.82rem}.principles-inner>span{font-size:.86rem;padding-left:17px;min-height:43px}.principles-inner>span:nth-child(3){border-left:0;padding-left:0}.section{padding-block:68px}.section-top{display:block;margin-bottom:32px}.section-top h2{margin-top:14px}.section-top>p{font-size:.84rem;margin-top:20px}.eyebrow{font-size:.6rem}.learning-layout{grid-template-columns:1fr;gap:26px}.learning-tab{padding:20px 14px}.learning-tab strong{font-size:.94rem}.learning-tab small{font-size:.73rem}.learning-panel{min-height:0;padding:26px}.learning-panel h3{font-size:1.75rem}.learning-panel>p{font-size:.83rem}.plan-stack>div{font-size:.74rem;gap:10px}.plan-stack small{font-size:.6rem}.panel-footnote{font-size:.6rem}.trial-section{padding-block:65px}.trial-layout{grid-template-columns:1fr;gap:30px}.trial-copy h2{margin-top:15px}.trial-copy>p{font-size:.87rem;margin-top:17px}.trial-note{font-size:.73rem;margin-top:20px}.trial-section::after{font-size:310px;bottom:-140px}.quiz-card{padding:23px;border-radius:20px}.quiz-card legend{font-size:1.17rem}.quiz-heading{font-size:.6rem}.quiz-topic{font-size:.6rem}.parts-layout{grid-template-columns:1fr;gap:30px}.parts-group-heading h3{font-size:1.3rem}.part-row{gap:18px;padding-block:17px}.android-section{grid-template-columns:1fr;padding:34px 27px;gap:34px;border-radius:22px}.android-section h2{font-size:2.5rem}.android-copy>p{font-size:.84rem}.android-actions{gap:12px}.button-light{font-size:.78rem;padding:14px 19px}.android-art{min-height:225px}.art-disc{width:175px;height:175px}.art-disc img{width:120px;height:120px}.art-tag{right:15px;bottom:3px;font-size:.6rem}.art-stars{left:calc(50% - 110px);font-size:43px}.faq-section{grid-template-columns:1fr;gap:30px}.faq-list summary{font-size:.86rem}.faq-list details p,.faq-list ol{font-size:.78rem;padding-right:0}.footer{padding-top:30px}.footer-top{flex-wrap:wrap;gap:24px;padding-bottom:27px}.footer-top>p{font-size:.82rem}.back-top{font-size:.72rem;margin-left:auto}.footer-bottom{flex-direction:column;gap:6px;font-size:.6rem}}
@media(max-width:365px){.container{width:calc(100% - 32px)}.header-inner{gap:6px}.brand{font-size:1rem;gap:5px}.brand img{width:29px;height:29px}.header .button-small{font-size:.63rem;gap:5px;padding:8px 10px}.menu-toggle{width:30px;padding:5px}.hero h1{font-size:3.3rem}.spark{right:0;font-size:22px}.hero .eyebrow{font-size:.52rem}.hero-actions{gap:6px}.hero-actions .button{font-size:.77rem;padding-inline:17px}.hero-actions .text-link{font-size:.71rem}.hero-facts{font-size:.58rem;gap:8px}.phone{width:245px;flex-basis:245px}.phone-brand small{font-size:7px}.phone-course{gap:7px;padding-inline:8px}.course-icon{width:28px;height:28px;flex-basis:28px}.phone-plan strong{font-size:11px}.note-top{left:-3px}.note-bottom{right:-3px}.learning-tab{gap:10px;padding-inline:12px}.learning-tab strong{font-size:.83rem}.learning-tab small{font-size:.67rem}.tab-arrow{font-size:20px}.learning-panel{padding:23px}.learning-panel h3{font-size:1.55rem}.plan-stack small{margin-left:23px}.quiz-card{padding:20px}.quiz-topic{padding:4px 7px}.quiz-card legend{font-size:1.1rem}.android-section{padding:30px 23px}.android-section h2{font-size:2.2rem}.android-actions .button{font-size:.7rem;gap:12px}.parts-group-heading{gap:10px}.footer .brand{font-size:1.08rem}}
.hero-visual{isolation:isolate}
@media(max-width:1100px) and (min-width:761px){.orbit{width:100%;height:auto;aspect-ratio:1}.orbit-two{width:85%;height:auto;aspect-ratio:1}.hero h1{font-size:clamp(3.1rem,7vw,5rem)}}
@media(max-width:365px){.header .button-small{display:none}.hero h1{font-size:min(3.3rem,15vw)}}
/* Small, composited effects. All content stays visible without the enhancement. */
.button{position:relative;isolation:isolate;overflow:hidden;transition:background .2s,transform .2s,box-shadow .2s}
.button::before{content:'';position:absolute;inset:-45% -25%;background:linear-gradient(115deg,transparent 40%,#ffffff24 50%,transparent 60%);transform:translateX(-110%);transition:transform .65s;z-index:-1;pointer-events:none}
@media(hover:hover) and (pointer:fine){.button:hover{box-shadow:0 8px 22px #176bff26}.button:hover::before{transform:translateX(110%)}.learning-tab{transition:background .22s,box-shadow .22s}.learning-tab:hover{background:#edf3fc;box-shadow:0 5px 18px #1b3f7010}.quiz-option:not(:has(input:disabled)):hover{border-color:#7fa8ee;background:#f3f7ff}.phone{transition:box-shadow .35s}.hero-visual:hover .phone{box-shadow:12px 25px 60px #14315135,inset 0 0 0 2px #a9b9c9}}
.motion-enabled .reveal-target{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.motion-enabled .reveal-target.is-revealed,.motion-enabled .reveal-target:focus-within{opacity:1;transform:none}
.motion-enabled .hero-copy{transition-delay:.05s}.motion-enabled .hero-visual{transition-delay:.16s}
.motion-enabled .hero-visual.in-motion .phone{animation:sprint-phone-float 7s ease-in-out infinite}
.motion-enabled .hero-visual.in-motion .note-top{animation:sprint-note-float 6s ease-in-out infinite}
.motion-enabled .hero-visual.in-motion .note-bottom{animation:sprint-note-float 6.5s ease-in-out -2s infinite}
.motion-enabled .learning-panel:not([hidden]){animation:sprint-panel-in .4s ease both}
.motion-enabled .faq-list details[open]>p,.motion-enabled .faq-list details[open]>div{animation:sprint-panel-in .28s ease both}
@keyframes sprint-phone-float{0%,100%{transform:translateY(0) rotate(3deg)}50%{transform:translateY(-9px) rotate(1.8deg)}}
@keyframes sprint-note-float{0%,100%{transform:translateY(0) rotate(-3deg)}50%{transform:translateY(-5px) rotate(-2deg)}}
@keyframes sprint-panel-in{from{opacity:0;transform:translateY(9px)}to{opacity:1;transform:none}}
@media(max-width:760px){@keyframes sprint-phone-float{0%,100%{transform:translateY(0) rotate(3deg)}50%{transform:translateY(-5px) rotate(2.5deg)}}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.motion-enabled .reveal-target{opacity:1;transform:none}.button::before{display:none}}