:root{--bg:#fff;--surface:#f5f5f5;--primary:#000;--secondary:#6b7280;--accent:#e5e5e5;--radius:12px}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:inherit;text-decoration:none}.hero{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:2rem}.hero__logo{width:72px;height:72px;margin-bottom:1.5rem}.hero__logo svg{width:100%;height:100%}.hero__title{font-size:3.5rem;font-weight:800;letter-spacing:-.04em;line-height:1}.hero__subtitle{margin-top:1rem;font-size:1.25rem;color:var(--secondary);max-width:460px;line-height:1.5}.hero__buttons{display:flex;gap:1rem;margin-top:2.5rem;flex-wrap:wrap;justify-content:center}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.85rem 1.75rem;border-radius:var(--radius);font-size:1rem;font-weight:600;cursor:pointer;border:none;transition:transform .15s ease,box-shadow .15s ease}.btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,.08)}.btn:active{transform:translateY(0)}.btn--primary{background:var(--primary);color:var(--bg)}.btn--outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}.btn svg{width:20px;height:20px;flex-shrink:0}.features{padding:6rem 2rem;background:var(--primary);color:var(--bg)}.features__inner{max-width:960px;margin:0 auto}.features__heading{font-size:2rem;font-weight:800;text-align:center;margin-bottom:3.5rem;letter-spacing:-.03em}.features__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));grid-gap:2rem;gap:2rem}.feature-card{background:hsla(0,0%,100%,.06);border:1px solid hsla(0,0%,100%,.1);border-radius:var(--radius);padding:2rem}.feature-card__icon{width:32px;height:32px;margin-bottom:.75rem}.feature-card__icon svg{width:100%;height:100%}.feature-card__title{font-size:1.125rem;font-weight:700;margin-bottom:.5rem}.feature-card__desc{font-size:.95rem;color:hsla(0,0%,100%,.65);line-height:1.55}.how{padding:6rem 2rem;background:var(--bg)}.how__inner{max-width:720px;margin:0 auto;text-align:center}.how__heading{font-size:2rem;font-weight:800;margin-bottom:3rem;letter-spacing:-.03em}.how__steps{display:flex;flex-direction:column;gap:2rem}.step{display:flex;align-items:flex-start;gap:1.25rem;text-align:left}.step__number{flex-shrink:0;width:48px;height:48px;background:var(--primary);color:var(--bg);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.25rem;font-weight:800}.step__content{flex:1 1}.step__title{font-size:1.125rem;font-weight:700;margin-bottom:.25rem}.step__desc{color:var(--secondary);line-height:1.5}.cta{padding:5rem 2rem;background:var(--surface);text-align:center}.cta__heading{font-size:2rem;font-weight:800;letter-spacing:-.03em;margin-bottom:.75rem}.cta__sub{color:var(--secondary);margin-bottom:2rem;font-size:1.1rem}.cta__buttons{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.footer{padding:2rem;text-align:center;border-top:1px solid var(--accent)}.footer__links{display:flex;gap:1.5rem;justify-content:center;margin-bottom:1rem}.footer__links a{color:var(--secondary);font-size:.9rem;transition:color .15s;display:inline-flex;align-items:center;gap:.35rem}.footer__links a svg{width:16px;height:16px}.footer__links a:hover{color:var(--primary)}.footer__copy{color:var(--secondary);font-size:.85rem}.lang-switch{position:fixed;top:1.25rem;right:1.25rem;z-index:50;display:flex;gap:.25rem;background:var(--surface);border:1px solid var(--accent);border-radius:8px;padding:.25rem}.lang-switch__btn{padding:.35rem .75rem;border-radius:6px;border:none;background:transparent;font-size:.85rem;font-weight:600;cursor:pointer;color:var(--secondary);transition:all .15s}.lang-switch__btn--active{background:var(--primary);color:var(--bg)}@media (max-width:640px){.hero__title{font-size:2.5rem}.hero__subtitle{font-size:1.1rem}.cta__heading,.features__heading,.how__heading{font-size:1.6rem}.cta__buttons,.hero__buttons{flex-direction:column;align-items:center}.btn{width:100%;max-width:280px;justify-content:center}}