:root{--blue-dark:#2b5f8a;--blue:#3977a8;--blue-mid:#67bde3;--blue-light:#c8d9e6;--blue-pale:#edf4f8;--white:#fff;--gray-50:#f8fafc;--gray-100:#f1f5f9;--gray-200:#e2e8f0;--gray-400:#94a3b8;--gray-600:#475569;--gray-800:#1e293b;--radius:10px;--shadow:0 2px 12px rgba(57,119,168,.12);--shadow-lg:0 8px 32px rgba(57,119,168,.18)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--gray-50);color:var(--gray-800);-webkit-font-smoothing:antialiased}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--blue-dark) 0,var(--blue) 55%,var(--blue-mid) 100%);padding:20px}.login-card{background:var(--white);border-radius:18px;padding:40px 40px 36px;width:100%;max-width:460px;box-shadow:var(--shadow-lg);text-align:center}.login-logo{width:100%;max-width:360px;height:auto;margin:0 auto 22px;display:block}.login-card h1{font-size:1.2rem;font-weight:600;color:var(--blue);margin-bottom:6px}.login-card p.sub{color:var(--gray-600);font-size:.9rem;margin-bottom:26px}.field{text-align:left;margin-bottom:16px}.field label{display:block;font-size:.78rem;font-weight:700;color:var(--gray-600);margin-bottom:6px;text-transform:uppercase;letter-spacing:.04em}.field input{width:100%;padding:12px 14px;border:1.5px solid var(--gray-200);border-radius:var(--radius);font-size:.95rem;color:var(--gray-800);outline:none;transition:border-color .2s}.field input:focus{border-color:var(--blue-mid)}.btn-primary{width:100%;padding:13px;background:var(--blue);color:var(--white);border:none;border-radius:var(--radius);font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s,transform .1s}.btn-primary:hover:not(:disabled){background:var(--blue-dark);transform:translateY(-1px)}.btn-primary:disabled{opacity:.6;cursor:default}.login-footer{margin-top:20px;font-size:.82rem;color:var(--gray-400)}.login-footer 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