:root {color-scheme:light;--bg:#faf8fb;--panel:#fff;--ink:#261e2a;--muted:#5c5460;--line:#d9d1da;--edge:#978899;--accent:#922559;--on:#fff;--soft:#faedf3;--focus:#135f92}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--bg:#17191e;--panel:#202329;--ink:#f0edf0;--muted:#bcb6c1;--line:#42454d;--edge:#928d98;--accent:#ffa6c6;--on:#331420;--soft:#3e2532;--focus:#92cfff}}
:root[data-theme=dark]{color-scheme:dark;--bg:#17191e;--panel:#202329;--ink:#f0edf0;--muted:#bcb6c1;--line:#42454d;--edge:#928d98;--accent:#ffa6c6;--on:#331420;--soft:#3e2532;--focus:#92cfff}
* {box-sizing:border-box}
body {margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 system-ui,sans-serif}
.auth {width:min(100% - 28px,31rem);margin:clamp(24px,7vh,72px) auto}
.brand {color:var(--ink);font-weight:800;font-size:1.6rem;letter-spacing:-.045em;text-decoration:none}
.brand span {color:var(--accent)}
.panel {background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:clamp(16px,4vw,32px);margin-top:16px}
nav {display:flex;flex-wrap:wrap;gap:4px;border-bottom:1px solid var(--line)}
nav a {padding:10px 7px;border-bottom:2px solid transparent;text-decoration:none;font-size:.9rem;color:var(--muted);font-weight:650}
nav a[aria-current]{border-color:var(--accent);color:var(--accent)}
h1 {font-size:clamp(1.65rem,5vw,2.05rem);line-height:1.15;letter-spacing:-.035em;margin:20px 0}
form {display:grid;gap:6px}
label {font-weight:650;margin-top:8px}
input {width:100%;min-width:0;height:44px;background:var(--bg);color:var(--ink);border:1px solid var(--edge);border-radius:7px;padding:8px 11px;font:inherit}
input[readonly]{color:var(--muted)}
small,footer {color:var(--muted)}
a {color:var(--accent);text-underline-offset:.17em}
button,.action {display:block;background:var(--accent);color:var(--on);border:0;border-radius:7px;min-height:44px;padding:10px 16px;text-align:center;text-decoration:none;font:650 1rem/1.4 system-ui;cursor:pointer;margin-top:12px}
.aux,footer a {display:inline-flex;min-height:44px;align-items:center}
footer {margin:6px 0}
.error {background:var(--soft);border-inline-start:3px solid var(--accent);padding:10px 14px}
:focus-visible {outline:3px solid var(--focus);outline-offset:2px}