:root{color-scheme:light dark;font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif}
*{box-sizing:border-box}
body{min-height:100vh;margin:0;display:grid;place-items:center;padding:24px;background:#0f172a;color:#e5e7eb}
.login-card{width:min(420px,100%);padding:32px;border:1px solid #334155;border-radius:18px;background:#111827;box-shadow:0 24px 80px #0008}
.brand{font-weight:800;color:#60a5fa;letter-spacing:.03em}
h1{margin:18px 0 6px;font-size:28px}
.hint,.security-note{color:#94a3b8;font-size:14px}
form{display:grid;gap:9px;margin-top:24px}
label{margin-top:8px;font-size:13px;font-weight:700}
input{width:100%;padding:12px 13px;border:1px solid #475569;border-radius:9px;background:#0b1220;color:#fff;font:inherit}
input:focus{outline:3px solid #2563eb55;border-color:#60a5fa}
button{margin-top:14px;padding:12px;border:0;border-radius:9px;background:#2563eb;color:#fff;font:inherit;font-weight:800;cursor:pointer}
button:disabled{opacity:.55;cursor:wait}
#mensagem{min-height:20px;color:#fca5a5;font-size:13px}
.security-note{margin:22px 0 0;font-size:12px}