*{box-sizing:border-box}
:root{--bg:#f6f6f4;--card:#fff;--fg:#1b1c1e;--muted:#5c5f66;--border:#e3e3df;--strong:#cfcfca;--ring:#2f5bd3}
@media (prefers-color-scheme:dark){:root{--bg:#0e1115;--card:#14181d;--fg:#e4e7eb;--muted:#a2a9b3;--border:#242a32;--strong:#323943;--ring:#7d9cf0}}
body{margin:0;background:var(--bg);color:var(--fg);font:13px/1.45 'IBM Plex Sans','Segoe UI',system-ui,sans-serif;-webkit-font-smoothing:antialiased}
main{min-height:100svh;display:grid;place-items:center;padding:16px}
.card{width:100%;max-width:400px;background:var(--card);border:1px solid var(--border);border-radius:5px;padding:32px}
.product{margin:0 0 24px;font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}
h1{margin:0 0 24px;font-size:22px;line-height:1.25;font-weight:600;letter-spacing:-.011em}
.sign-in{display:flex;align-items:center;justify-content:center;gap:10px;height:40px;border:1px solid var(--strong);border-radius:5px;color:var(--fg);text-decoration:none;font-size:14px;font-weight:500}
.sign-in:hover{background:var(--bg)}
.sign-in:focus-visible{outline:2px solid var(--ring);outline-offset:2px}
.help{margin:16px 0 0;color:var(--muted);font-size:12px}