*{box-sizing:border-box}body{margin:0;background:#080c0f;color:#eaf2f3;font:17px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}main,header,footer{max-width:900px;margin:auto;padding:28px}header{display:flex;gap:24px;align-items:center;flex-wrap:wrap;border-bottom:1px solid #273940}header>a{font-size:26px;font-weight:700;margin-right:auto;color:#42c9dd}a{color:#65d8e8;text-decoration:none}a:hover{text-decoration:underline}h1{font-size:clamp(34px,6vw,60px);line-height:1.2;letter-spacing:-1.5px}h2{margin-top:40px;font-size:24px}p,li{color:#c3d2d8}small{color:#9cb1ba}.lead{font-size:22px;max-width:680px}.eyebrow{color:#65d8e8;letter-spacing:3px;font-size:13px}.card{padding:24px;background:#101b21;border:1px solid #243b46;border-radius:18px;margin:20px 0}button,.button{display:inline-block;padding:14px 22px;border:0;border-radius:12px;background:#42c9dd;color:#041014;font-weight:700;font-size:16px;cursor:pointer}label{display:block;margin-top:20px}input,textarea{display:block;width:100%;padding:12px;margin:8px 0 20px;background:#080c0f;color:white;border:1px solid #46606e;border-radius:8px;font:inherit}footer{font-size:14px;border-top:1px solid #273940;margin-top:60px}nav{display:flex;gap:18px}section[lang=en]{border-top:1px solid #273940;margin-top:48px;padding-top:20px}.store-links{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0}.secondary{background:#193c47;color:#eaf2f3;border:1px solid #42c9dd}.hero-art,video{display:block;width:100%;height:auto;border-radius:16px;border:1px solid #243b46;margin:32px 0}.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr));gap:16px}.features .card{margin:0}.features h2{margin-top:0;font-size:22px}.video-note{font-size:14px}details{padding:20px 0;border-bottom:1px solid #273940}summary{cursor:pointer;font-weight:600}details p{margin-bottom:0}a:focus-visible,summary:focus-visible,video:focus-visible{outline:3px solid #70efdc;outline-offset:5px}@media(max-width:480px){main,header,footer{padding:22px}.lead{font-size:19px}nav{gap:12px}h1{font-size:40px}.hero-art{border-radius:8px}}