*{box-sizing:border-box}
:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#080a0c;color:#f2f2f3;font-synthesis:none}
body{margin:0}
.setup{max-width:1016px;margin:auto;padding:34px 36px 24px}
.brand{display:flex;align-items:center;gap:15px;font-size:15px;font-weight:650;letter-spacing:-.02em}
.brand img{width:57px;height:34px;object-fit:contain;filter:invert(1)}
.intro{padding:64px 0 42px;max-width:720px}
.eyebrow{margin:0 0 15px;color:#9aa1aa;font-size:13px;font-weight:550}
h1{font-size:40px;line-height:1.15;letter-spacing:-.05em;margin:0 0 20px;font-weight:750;white-space:nowrap}
.description{font-size:18px;line-height:1.65;color:#b0b5bc;max-width:610px;margin:0 0 28px}
a{color:inherit}
.open-trainer{display:inline-flex;align-items:center;justify-content:center;gap:18px;min-height:50px;background:#eff1f3;color:#0c0e10;border:1px solid transparent;border-radius:999px;padding:14px 23px;font-size:16px;line-height:1.2;font-weight:700;text-decoration:none;transition:background .15s}
.open-trainer:hover{background:#dce0e3}
.open-trainer svg{width:20px;height:20px}
a:focus-visible{outline:2px solid #fff;outline-offset:5px}
.access{font-size:13px;color:#8d949d;margin:14px 0 0}
.guide{border-top:1px solid #2a2e33;padding-top:34px}
.guide-heading{max-width:640px;margin-bottom:25px}
h2{font-size:24px;letter-spacing:-.035em;line-height:1.3;margin:0 0 10px;font-weight:650}
.guide-heading p{font-size:16px;line-height:1.6;color:#a8afb8;margin:0}
.platforms{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.platform{background:#101215;border:1px solid #2c3036;border-radius:20px;padding:25px;display:flex;flex-direction:column}
.platform-title{display:flex;align-items:center;gap:13px;margin-bottom:24px}
.platform-title>svg{width:25px;height:30px;color:#e5e8ec}
h3{font-size:19px;letter-spacing:-.03em;line-height:1.2;margin:0;font-weight:650}
.platform-title p{margin:5px 0 0;color:#9da5af;font-size:13px}
ol{list-style:none;padding:0;margin:0 0 22px;display:grid;gap:20px}
li{display:flex;align-items:flex-start;gap:12px}
li>span{width:23px;height:23px;flex:none;background:#22262c;border-radius:50%;display:grid;place-items:center;font-size:12px;color:#c1c7cf;line-height:1;margin-top:2px}
li p{font-size:15px;line-height:1.6;color:#b1b8c1;margin:0}
strong{color:#eceff2;font-weight:600}
.share-icon{display:inline-block;width:17px;height:17px;vertical-align:-3px;color:#e1e5ea}
.help{align-self:flex-start;margin-top:auto;text-decoration:none;color:#a0a8b3;font-size:13px}
.help:hover{text-decoration:underline;color:#fff}
.help span{margin-left:4px}
.tip{max-width:670px;color:#858e99;font-size:13px;line-height:1.65;margin:21px 0 0}
footer{padding:32px 0 0;color:#68717e;font-size:12px}
@media(max-width:680px){.setup{padding:25px 20px 24px}.brand{font-size:14px;gap:12px}.brand img{width:49px;height:29px}.intro{padding:39px 0 30px}.eyebrow{font-size:12px;margin-bottom:13px}h1{font-size:clamp(22px,5.65vw,34px);letter-spacing:-.045em;margin-bottom:17px}.description{font-size:16px;line-height:1.65;margin-bottom:23px}.open-trainer{width:100%;min-height:49px;font-size:15px}.access{text-align:center;font-size:12px}.guide{padding-top:28px}.guide-heading{margin-bottom:22px}h2{font-size:22px}.guide-heading p{font-size:15px}.platforms{grid-template-columns:1fr;gap:14px}.platform{padding:22px;border-radius:18px}.platform-title{margin-bottom:22px}ol{gap:18px}.tip{margin-top:20px}}
@media(prefers-reduced-motion:reduce){.open-trainer{transition:none}}