:root{--bg:#f3f5f3;--card:#fff;--ink:#26302a;--muted:#6f7a71;--line:#dfe5df;--accent:#2d6953;--error:#9b2c1f;--error-bg:#fdecea}
@media(prefers-color-scheme:dark){:root{--bg:#141816;--card:#1e2421;--ink:#e6ece8;--muted:#9aa59e;--line:#323a35;--accent:#7fc4a4;--error:#ffb4a8;--error-bg:#3a1f1b}}
*{box-sizing:border-box}
body{margin:0;min-height:100dvh;display:grid;place-items:center;background:var(--bg);color:var(--ink);font:15px/1.5 system-ui,-apple-system,"Segoe UI",sans-serif;padding:16px}
.card{width:100%;max-width:380px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:28px 24px;box-shadow:0 12px 40px #0000000f}
.brand{display:flex;align-items:center;gap:10px;margin-bottom:22px}.brand img{width:38px;height:38px;border-radius:9px}.brand strong{font-size:21px;letter-spacing:-.4px}.brand span{font-weight:400}
h1{font-size:20px;margin:0 0 4px}.intro{margin:0 0 18px;color:var(--muted);font-size:14px}
label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted);margin-bottom:14px}
input{font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:11px 12px;font-size:16px}
input:focus{outline:2px solid var(--accent);outline-offset:1px}
button{width:100%;font:inherit;font-weight:600;color:#fff;background:var(--accent);border:0;border-radius:8px;padding:12px;cursor:pointer;margin-top:4px}
button:disabled{opacity:.6;cursor:wait}
.error{background:var(--error-bg);color:var(--error);border-radius:8px;padding:9px 11px;font-size:13px;margin:0 0 12px}
.note{color:var(--muted);font-size:12px;text-align:center;margin:18px 0 0}