:root{color-scheme:dark;--bg:#100818;--panel:#1a1224;--ink:#f5e9ff;--muted:#b7a7c7;--pink:#ff4ecd;--purple:#8b5cf6;--line:#49345f}
*{box-sizing:border-box}
html{font:16px/1.6 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink)}
body{margin:0;min-height:100vh;background:radial-gradient(circle at 20% 0,#311347 0,transparent 38rem),var(--bg)}
header,main,footer{width:min(900px,calc(100% - 32px));margin:auto}
header{display:flex;justify-content:space-between;align-items:center;padding:24px 0}
.brand{color:var(--ink);font-weight:900;letter-spacing:.08em;text-decoration:none}.brand span{color:var(--pink)}
nav{display:flex;gap:18px;flex-wrap:wrap}nav a,footer a{color:var(--muted)}
main{padding:8vh 0 12vh}.card{padding:clamp(24px,5vw,54px);border:1px solid var(--line);border-radius:18px;background:#1a1224e8;box-shadow:0 20px 70px #0008}
h1{max-width:760px;margin:0 0 20px;font-size:clamp(2rem,7vw,4.5rem);line-height:1.02}h2{margin-top:2.2rem;color:#dfc5ff}
.lead{max-width:700px;color:var(--muted);font-size:1.15rem}
.button{display:inline-block;margin-top:18px;padding:11px 18px;border-radius:8px;background:var(--pink);color:#16081c;font-weight:800;text-decoration:none}
li{margin:.5rem 0}code{color:#dfc5ff}footer{padding:24px 0 40px;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}
form{display:grid;gap:15px;max-width:430px}label{display:grid;gap:6px;color:var(--muted)}input{width:100%;padding:12px;border:1px solid var(--line);border-radius:7px;background:#0d0712;color:var(--ink);font:inherit}button{padding:12px;border:0;border-radius:7px;background:var(--pink);color:#16081c;font-weight:800;cursor:pointer}.error{color:#ff9bbf}
@media(max-width:560px){header{align-items:flex-start;gap:18px;flex-direction:column}main{padding-top:4vh}}