:root{--ink:#172033;--muted:#64748b;--primary:#315ee8;--secondary:#6d43aa;--violet:#f2efff;--line:#e5e8f2;--white:#fff;--shadow:0 20px 55px rgba(37,44,95,.14)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#fafbff}a{color:inherit}.section-wrap{width:min(1160px,calc(100% - 2rem));margin:0 auto}.site-header{height:74px;display:flex;align-items:center;justify-content:space-between;padding:0 max(1rem,calc((100% - 1160px)/2));background:rgba(250,251,255,.9);backdrop-filter:blur(12px);position:sticky;top:0;z-index:10;border-bottom:1px solid rgba(229,232,242,.8)}.brand{font-size:1.2rem;font-weight:950;text-decoration:none;letter-spacing:-.04em}.brand span{color:var(--primary)}.site-nav{display:flex;align-items:center;gap:1.35rem;font-size:.9rem;font-weight:750;color:var(--muted)}.site-nav a{text-decoration:none}.site-nav a:hover{color:var(--primary)}.nav-login{padding:.65rem 1rem;border-radius:999px;background:var(--ink);color:#fff!important}.nav-toggle{display:none;border:1px solid var(--line);border-radius:999px;background:#fff;padding:.5rem .8rem;font:inherit;font-weight:800}.hero{display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:3.2rem;padding:6rem 0 5.5rem;min-height:650px}.eyebrow{margin:0 0 .7rem;color:var(--primary);font-size:.77rem;font-weight:900;letter-spacing:.12em;text-transform:uppercase}.hero h1{max-width:650px;margin:0;font-size:clamp(2.7rem,6vw,5.25rem);line-height:.98;letter-spacing:-.065em}.hero-lead{max-width:590px;color:var(--muted);font-size:1.13rem;line-height:1.65;margin:1.5rem 0}.hero-actions{display:flex;align-items:center;gap:1.15rem;flex-wrap:wrap}.primary-btn,.outline-btn,.text-btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:.8rem 1.2rem;font:inherit;font-weight:850;text-decoration:none;cursor:pointer}.primary-btn{border:0;color:#fff;background:linear-gradient(135deg,var(--primary),var(--secondary));box-shadow:0 12px 24px rgba(49,94,232,.22)}.outline-btn{border:1px solid #cfd6ee;background:#fff;color:var(--primary)}.text-btn{padding-left:0;color:var(--ink)}.text-btn span{color:var(--primary);font-size:1.2rem}.microcopy{color:#94a3b8;font-size:.8rem;margin-top:1rem}.hero-visual{position:relative;min-height:420px;display:flex;align-items:center;justify-content:center}.hero-visual:before{content:"";position:absolute;width:340px;height:340px;border-radius:50%;background:linear-gradient(135deg,#e4eaff,#f0e6ff);filter:blur(1px)}.visual-orbit{position:absolute;border:1px solid rgba(49,94,232,.2);border-radius:50%;transform:rotate(-20deg)}.orbit-one{width:430px;height:180px}.orbit-two{width:390px;height:240px;transform:rotate(34deg)}.demo-card{position:relative;width:min(370px,90%);padding:1.25rem;border-radius:22px;background:rgba(255,255,255,.96);box-shadow:var(--shadow);transform:rotate(3deg)}.demo-top{display:flex;justify-content:space-between;align-items:center}.demo-pill{padding:.35rem .65rem;border-radius:999px;background:var(--violet);color:var(--secondary);font-size:.7rem;font-weight:850}.demo-score{font-size:.78rem;color:#16825b;font-weight:900}.demo-label{color:var(--muted);font-size:.8rem;margin:2rem 0 .45rem}.demo-word{font-size:2.6rem;font-weight:950;letter-spacing:-.05em}.demo-translation{color:var(--muted);margin:.15rem 0 1.3rem}.demo-options{display:grid;gap:.55rem}.demo-option{padding:.75rem;text-align:left;border:1px solid var(--line);border-radius:11px;background:#fff;color:var(--ink);font:inherit;font-weight:750}.demo-option.correct{border-color:#90d7b7;background:#effdf5;color:#17764f}.demo-progress{height:7px;margin-top:1.2rem;border-radius:99px;background:#edf0f8;overflow:hidden}.demo-progress span{display:block;width:68%;height:100%;border-radius:inherit;background:linear-gradient(90deg,#48bb78,var(--primary))}.section-block{padding:5.5rem 0}.section-heading{max-width:650px;margin-bottom:2rem}.section-heading h2,.cta-section h2{font-size:clamp(2rem,4vw,3.35rem);line-height:1.04;letter-spacing:-.05em;margin:0 0 .8rem}.section-heading>p:last-child,.cta-section p:last-child{color:var(--muted);font-size:1.05rem;line-height:1.55}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.feature-card{padding:1.5rem;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 8px 25px rgba(37,44,95,.05)}.feature-number{color:var(--primary);font-weight:950;font-size:.85rem}.feature-card h3{font-size:1.4rem;margin:2rem 0 .45rem}.feature-card p{color:var(--muted);line-height:1.55;margin:0}.proof-band{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;padding:2.5rem max(1rem,calc((100% - 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