:root{
  --bg:#F5F5F1; --surface:#FFFFFF; --border:#E3E1D8; --ink:#1D1B16; --ink-soft:#726C5E; --ink-faint:#A29C8C;
  --accent:#B9852B; --ok:#1E8E5A; --erro:#C23B4F;
}
@media (prefers-color-scheme: dark){
  :root{ --bg:#14161B; --surface:#1B1E25; --border:#2B2F39; --ink:#F1F0EA; --ink-soft:#A6A395; --ink-faint:#6B6960; --accent:#D9A94A; --ok:#4FC488; --erro:#E86B7D; }
}
*{box-sizing:border-box;}
body{margin:0; min-height:100vh; background:var(--bg); color:var(--ink); font-family:'IBM Plex Sans', -apple-system, sans-serif; -webkit-font-smoothing:antialiased;}
.entrada{min-height:100vh; display:flex; flex-direction:column; align-items:center; justify-content:center; padding:24px 16px;}
.cartao{width:100%; max-width:380px; background:var(--surface); border:1px solid var(--border); border-radius:16px; padding:28px 26px;}
.titulo-app{font-family:'Space Grotesk', sans-serif; font-size:24px; font-weight:600; margin:0 0 20px;}
.titulo-app small{display:block; font-family:'IBM Plex Sans', sans-serif; font-size:13.5px; font-weight:500; color:var(--ink-soft); margin-top:4px;}
.campo{margin-bottom:14px;}
.campo label{display:block; font-size:12.5px; font-weight:600; color:var(--ink-soft); margin-bottom:6px;}
.campo input{width:100%; font:inherit; font-size:15px; color:var(--ink); padding:10px 12px; border:1px solid var(--border); border-radius:8px; background:var(--surface);}
.campo input:focus{outline:2px solid var(--accent); outline-offset:1px;}
.campo input:disabled{opacity:.7;}
.nota{margin:.35rem 0 0; font-size:12px; color:var(--ink-faint);}
.btn{appearance:none; border:1px solid var(--ink); background:var(--ink); color:var(--bg); font:inherit; font-weight:600; font-size:14.5px; padding:11px 16px; border-radius:8px; cursor:pointer;}
.btn-largo{width:100%; margin-top:6px;}
.msg{padding:10px 12px; border-radius:8px; font-size:13.5px; margin-bottom:14px;}
.msg.erro{background:color-mix(in srgb, var(--erro) 12%, var(--surface)); color:var(--erro);}
.msg.ok{background:color-mix(in srgb, var(--ok) 12%, var(--surface)); color:var(--ok);}
.aviso-teste{margin:0 0 10px; font-size:12px; font-weight:700; color:#C2410C; text-transform:uppercase; letter-spacing:.04em;}
.rodape-form{margin-top:14px;}
.link{appearance:none; border:0; background:none; color:var(--ink-soft); font:inherit; font-size:13px; cursor:pointer; text-decoration:underline;}