:root{--bg:#f4f6f8;--card:#fff;--txt:#17191c;--muted:#667085;--blue:#0787c9;--line:#e4e7ec;--todo:#fff8e7;--todo-line:#f6d98c}
@media(prefers-color-scheme:dark){:root{--bg:#111316;--card:#1b1e22;--txt:#eceff3;--muted:#98a2b3;--blue:#4fb3e8;--line:#2c3036;--todo:#2a2412;--todo-line:#6b5a22}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--txt);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",sans-serif;line-height:1.55}
a{color:var(--blue)}
.wrap{max-width:820px;margin:auto;padding:0 16px}
.top{border-bottom:1px solid var(--line);padding-top:env(safe-area-inset-top)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:64px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:var(--txt);text-decoration:none;font-weight:750;font-size:20px}
.brand img{width:36px;height:36px;border-radius:22.4%}
nav{display:flex;gap:16px;flex-wrap:wrap}
nav a{text-decoration:none;font-weight:600}
nav .lang{border:1px solid var(--line);border-radius:999px;padding:2px 10px}
main{padding-top:24px;padding-bottom:60px}
h1{font-size:32px;letter-spacing:-.8px;margin:8px 0 18px}
h2{font-size:21px;margin:26px 0 8px}
section,.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:6px 20px 14px;margin:14px 0}
.small{color:var(--muted);font-size:14px}
.todo{background:var(--todo);border:1px dashed var(--todo-line);border-radius:6px;padding:0 4px}
.hero{font-size:19px;color:var(--muted)}
.buttons{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0}
.button{display:inline-block;background:var(--blue);color:#fff;text-decoration:none;font-weight:650;padding:11px 18px;border-radius:12px}
.button.secondary{background:transparent;color:var(--blue);border:1px solid var(--line)}
footer{border-top:1px solid var(--line);padding:20px 0 calc(28px + env(safe-area-inset-bottom));font-size:14px}
footer .wrap{display:flex;gap:18px;flex-wrap:wrap}
footer span{color:var(--muted);margin-left:auto}