:root{--bg:#faf9f6;--card:#fff;--fg:#1c1b1f;--muted:#5f5d66;--line:#e7e4dd;--acc:#5546d8}
@media (prefers-color-scheme:dark){:root{--bg:#131316;--card:#1d1d22;--fg:#f1f0f4;--muted:#a8a6b0;--line:#2c2c33;--acc:#a99bff}}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif}
a{color:var(--acc)}main,header,footer{max-width:880px;margin:0 auto;padding:0 16px}
header{display:flex;align-items:center;justify-content:space-between;padding-top:20px;padding-bottom:8px}
.brand{font-weight:800;font-size:20px;text-decoration:none;color:var(--fg);letter-spacing:-.01em}
.brand span{color:var(--acc)}nav a{margin-left:16px;text-decoration:none;color:var(--muted);font-size:15px}
h1{font-size:clamp(30px,6vw,46px);line-height:1.15;letter-spacing:-.02em;margin:28px 0 12px}
h2{font-size:22px;margin:36px 0 12px}.lead{font-size:19px;color:var(--muted);max-width:640px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px;margin:18px 0}
.card{display:flex;gap:14px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:14px;text-decoration:none;color:var(--fg)}
.card:hover{border-color:var(--acc)}.card img,.tile{width:60px;height:60px;border-radius:14px;flex:none}
.tile{display:grid;place-items:center;color:#fff;font-weight:800;font-size:24px}
.card b{display:block;font-size:17px}.card small{color:var(--muted);font-size:14px;line-height:1.35;display:block}
.pill{display:inline-block;font-size:12px;font-weight:700;padding:2px 9px;border-radius:99px;background:color-mix(in srgb,var(--acc) 15%,transparent);color:var(--acc);margin-top:4px}
.hero{display:flex;gap:20px;align-items:center;margin-top:24px}.hero img{width:96px;height:96px;border-radius:22px}
.hero h1{margin:0}.hero p{margin:4px 0 0;color:var(--muted)}
ul.f{padding-left:20px}ul.f li{margin:6px 0}.links{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}
.btn{display:inline-block;padding:10px 18px;border-radius:12px;background:var(--acc);color:#fff;text-decoration:none;font-weight:600}
.btn.ghost{background:transparent;color:var(--acc);border:1px solid var(--line)}
.doc{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:8px 22px 18px;margin:18px 0}
.doc h2{font-size:19px}.principles{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:22px 0 8px}
.principle{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:16px}
.principle b{display:block;font-size:17px;margin-bottom:4px}.principle span{color:var(--muted);font-size:15px}
.app{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:22px;margin:18px 0;scroll-margin-top:16px}
.app .head{display:flex;gap:16px;align-items:center}.app .head img{width:76px;height:76px;border-radius:18px}
.app h3{margin:0;font-size:26px;letter-spacing:-.01em}.app .tag{color:var(--muted);margin:2px 0 0}
.app .why{border-left:3px solid var(--acc);padding:2px 12px;color:var(--muted);font-size:15px;margin:14px 0}
.app ul{list-style:none;padding:0;margin:12px 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:8px 18px}
.app li{padding-left:26px;position:relative;font-size:16px}.app li:before{content:"✓";position:absolute;left:0;color:var(--acc);font-weight:800}
.meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:12px;font-size:14px}
.meta .price{font-weight:700}.meta a{text-decoration:none}
.toc{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}.toc a{text-decoration:none;font-size:14px;font-weight:600;padding:6px 12px;border:1px solid var(--line);border-radius:99px;color:var(--fg);background:var(--card)}
footer{color:var(--muted);font-size:14px;padding-top:36px;padding-bottom:40px}