:root{color-scheme:light dark;--bg:#f2f4f7;--card:#fff;--ink:#141a24;--muted:#5b6474;--line:#d8dde5;--accent:#2f5bd3;--bad:#b42318}
@media (prefers-color-scheme:dark){:root{--bg:#0b0f15;--card:#141a24;--ink:#e6eaf0;--muted:#9aa4b2;--line:#2a3342;--accent:#7c9cff;--bad:#ff8a80}}
*{box-sizing:border-box}
body{margin:0;min-height:100svh;display:grid;place-items:center;padding:24px 16px;background:var(--bg);color:var(--ink);font:16px/1.5 system-ui,-apple-system,"Segoe UI",sans-serif}
main{width:100%;max-width:380px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px 24px;display:flex;flex-direction:column;gap:16px}
.art{margin:0;font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
h1{margin:0;font-size:24px;line-height:1.2}
p{margin:0}
.leise{color:var(--muted);font-size:14px}
form{display:flex;flex-direction:column;gap:14px}
label{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:600}
input{font:inherit;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:transparent;color:inherit}
input:focus{outline:2px solid var(--accent);outline-offset:1px}
button,.knopf{font:inherit;font-weight:600;padding:11px 14px;border:0;border-radius:10px;background:var(--accent);color:#fff;cursor:pointer;text-align:center;text-decoration:none}
.fehler{color:var(--bad);font-size:14px;font-weight:600}