:root{--ink:#252639;--muted:#626472;--paper:#f6f4ee;--line:#dfdfd6;--accent:#5750b5;--purple:#5750b5;--teal:#3c7568}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6}button,a,select{-webkit-tap-highlight-color:transparent}a{color:inherit}button,select{font:inherit}button,a,select{touch-action:manipulation}:focus-visible{outline:3px solid var(--accent);outline-offset:5px}nav{max-width:1320px;margin:auto;min-height:96px;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 48px;border-bottom:1px solid var(--line)}.nav-logo{font-size:23px;font-weight:800;letter-spacing:-1px;text-decoration:none;display:flex;align-items:center;gap:10px}.nav-logo img{width:34px;height:34px;border-radius:9px}.nav-logo small{font-size:15px;font-weight:500;letter-spacing:0;color:var(--muted)}.nav-right,.nav-links{display:flex;align-items:center;gap:22px}.nav-links a{font-size:13px;text-decoration:none;color:var(--muted)}.nav-links a:hover{color:var(--accent)}select{color:var(--ink);background:transparent;border:1px solid #cecec7;border-radius:8px;padding:9px;max-width:150px;cursor:pointer}.hero{max-width:1240px;margin:0 auto;padding:68px 48px 75px;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:70px;align-items:center}.hero-icon{display:none}.hero-badge{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:24px;display:flex;align-items:center;gap:9px}.hero-badge:before{content:"";width:7px;height:7px;background:#b78e52;border-radius:50%;flex:none}.hero h1{font-size:clamp(44px,5.5vw,72px);font-weight:650;line-height:1.07;letter-spacing:-3px;margin:0 0 28px}.hero h1 em{font-family:Georgia,serif;font-weight:400;color:var(--accent)}.hero p{font-size:16px;line-height:1.8;color:var(--muted);max-width:440px}.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.btn-primary,.btn-secondary{display:inline-flex;align-items:center;justify-content:center;padding:13px 21px;border-radius:9px;text-decoration:none;font-size:14px;font-weight:600;transition:transform .2s,background .2s}.btn-primary{background:var(--ink);color:#fff}.btn-primary:hover{background:var(--accent);transform:translateY(-2px)}.btn-secondary{border:1px solid #cfcfc6}.btn-secondary:hover{background:#eae8e0}.demo{position:relative;background:#e9e6f2;border-radius:32px;padding:24px 32px 20px;display:flex;flex-direction:column;align-items:center;gap:18px;isolation:isolate}.demo:before{content:"";position:absolute;inset:70px -14px 75px;background:#d9ddce;border:1px solid #c8cdbb;border-radius:28px;transform:rotate(-7deg);z-index:-1}.demo-toolbar{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12px;color:#515361}.demo-toolbar label{display:flex;align-items:center;gap:10px}.demo-toolbar select{background:#f9f8fc;font-size:12px;border-color:#d7d4e1}.flip{display:block;width:100%;height:380px;perspective:1200px;background:none;border:0;padding:0;cursor:pointer;color:var(--ink);text-align:center}.flip-inner{position:relative;width:100%;height:100%;transition:transform .55s cubic-bezier(.4,.2,.2,1);transform-style:preserve-3d}.flip.flipped .flip-inner{transform:rotateY(180deg)}.flip-face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#fffdf9;border-radius:22px;padding:22px;box-shadow:0 12px 22px #34314110;border:1px solid #e7e3dc;overflow:auto}.flip-back{transform:rotateY(180deg);background:#fcfbff}.card-top{position:absolute;top:18px;left:22px;right:22px;display:flex;justify-content:space-between;font-size:11px;color:var(--muted);letter-spacing:.1em}.demo-art{width:100%;height:245px;object-fit:contain;border-radius:14px;mix-blend-mode:multiply}.native-label{font-size:26px;font-weight:650;line-height:1.3;margin-top:7px}.flip-article{font-size:17px;color:var(--muted)}.flip-word{font-size:42px;font-weight:650;line-height:1.2;letter-spacing:-1px;overflow-wrap:anywhere}.flip-label{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-top:22px}.flip-meaning{font-size:22px}.demo-example{font-size:14px;color:var(--muted);margin:12px 0 0}.demo-reading{font-size:15px;color:var(--accent);margin-top:8px}.demo-controls{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12px;color:#575468}.demo-controls button{background:#fffdf9;color:var(--ink);border:1px solid #d2ccdf;border-radius:8px;padding:10px 15px;cursor:pointer;min-height:42px}.demo-controls button:hover{background:#fff}.stats{max-width:1144px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:30px 0}.stat{text-align:center;border-right:1px solid var(--line)}.stat:last-child{border:0}.stat-num{font-size:35px;font-weight:600;letter-spacing:-1px}.stat-label{font-size:12px;color:var(--muted)}.section{max-width:1240px;padding:85px 48px 0;margin:auto}.section-tag{text-transform:uppercase;font-size:11px;color:var(--accent);letter-spacing:.16em;font-weight:700;margin-bottom:15px}.section h2,.cta-section h2{font-size:clamp(28px,3.5vw,44px);line-height:1.16;letter-spacing:-1.4px;font-weight:600;margin:0 0 18px}.section>p{max-width:620px;color:var(--muted);font-size:15px;margin-bottom:32px}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);column-gap:40px;row-gap:24px}.feature-card{padding:24px 0;border-top:1px solid var(--line)}.feature-icon{color:var(--accent);font-size:13px;font-weight:700;margin-bottom:14px}.feature-card h3{font-size:19px;font-weight:600;margin:0 0 10px;letter-spacing:-.3px}.feature-card p{font-size:14px;line-height:1.8;color:var(--muted);margin:0}.levels-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.level-chip{border:1px solid #dcddd1;border-radius:14px;padding:25px;background:#eceee4}.level-chip:nth-child(2){background:#ebe7f1;border-color:#ddd6e7}.level-chip:nth-child(3){background:#f0e5da;border-color:#e4d9ce}.level-chip:nth-child(4){background:#e3eaf0;border-color:#d6dfe8}.level{font-family:Georgia,serif;font-size:48px;line-height:1.2}.level-name{font-size:14px;font-weight:600;margin-top:12px}.level-meta{font-size:11px;margin-top:8px;color:var(--muted)}.lang-grid{display:flex;flex-wrap:wrap;gap:12px}.lang-pill{background:#fffdf9;border:1px solid var(--line);border-radius:50px;padding:12px 20px;font-size:14px}.flag{margin-right:9px}.plat-grid{display:flex;gap:40px;flex-wrap:wrap}.plat{display:flex;align-items:center;gap:10px;font-size:15px}.plat span{font-size:24px}.cta-section{max-width:1144px;margin:85px auto 0;background:#e9e6f2;padding:50px;border-radius:22px;text-align:center}.cta-section p{max-width:570px;margin:0 auto 24px;color:#626070;font-size:15px}footer{max-width:1240px;margin:auto;padding:40px 48px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:var(--muted)}footer a{text-decoration:none}.footer-links{display:flex;gap:22px}.skip-link{position:absolute;top:-100px;left:10px;padding:12px;background:#fff;z-index:20}.skip-link:focus{top:10px}
@media(min-width:1400px){.hero{padding-top:90px;padding-bottom:95px}}
@media(max-width:1000px){.demo:before{inset:70px -3px 75px;transform:rotate(-4deg)}nav{padding:20px 28px}.nav-links{gap:14px}.hero{gap:35px;padding:55px 32px}.hero h1{font-size:54px}.demo{padding:20px}.stats,.cta-section{margin-left:32px;margin-right:32px}.section{padding:65px 32px 0}.features-grid{gap:24px}.level-chip{padding:20px}}
@media(max-width:740px){nav{flex-wrap:wrap;padding:18px 22px;gap:16px}.nav-right{gap:12px}.nav-links a{display:none}.nav-links a:first-child{display:block}.nav-logo{font-size:20px}.nav-logo small{font-size:13px}.nav-logo img{width:28px;height:28px}.lang-switcher select{max-width:125px;font-size:12px}.hero{grid-template-columns:1fr;padding:42px 24px 40px;gap:36px}.hero h1{font-size:clamp(44px,10vw,64px);letter-spacing:-2px}.hero p{max-width:100%;font-size:15px}.hero-badge{font-size:9px;margin-bottom:22px}.demo{max-width:440px;width:100%;margin:auto;padding:20px 24px}.demo:before{inset:60px -6px 65px;transform:rotate(-3deg)}.flip{height:360px}.demo-art{height:225px}.stats{margin:0 24px;grid-template-columns:repeat(2,1fr);row-gap:22px;padding:24px 0}.stat:nth-child(2){border:0}.stat-num{font-size:30px}.section{padding:55px 24px 0}.features-grid{grid-template-columns:repeat(2,1fr);gap:20px}.levels-grid{grid-template-columns:repeat(2,1fr)}.cta-section{margin:55px 24px 0;padding:32px 22px}.lang-pill{padding:9px 14px;font-size:13px}.plat-grid{gap:20px}footer{padding:30px 24px;flex-direction:column}.footer-links{flex-wrap:wrap;gap:16px}}
@media(max-width:390px){.nav-links{display:none}.nav-right{margin-left:auto}.demo{padding:16px}.features-grid{grid-template-columns:1fr}.demo-toolbar label{gap:5px}.demo-toolbar select{max-width:116px}.btn-primary,.btn-secondary{padding:12px 16px;font-size:13px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}