:root{--fb-bg:#f4f7fb;--fb-card:#fff;--fb-text:#111827;--fb-muted:#6b7280;--fb-primary:#2563eb;--fb-border:#dbe3ef}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:radial-gradient(circle at top,#e8f1ff,var(--fb-bg));color:var(--fb-text);display:grid;place-items:center;padding:22px}.auth-card{width:min(520px,100%);background:var(--fb-card);border:1px solid var(--fb-border);border-radius:22px;padding:28px;box-shadow:0 18px 45px rgba(15,23,42,.12)}.brand{display:flex;gap:12px;align-items:center;margin-bottom:14px}.brand-mark{width:44px;height:44px;display:grid;place-items:center;border-radius:14px;background:#dbeafe;font-size:24px}h1{margin:0;font-size:1.75rem}p{color:var(--fb-muted);line-height:1.5}label{display:block;margin:14px 0 6px;font-weight:700}input{width:100%;border:1px solid var(--fb-border);border-radius:12px;padding:12px 14px;font-size:1rem}button{width:100%;margin-top:18px;border:0;border-radius:14px;padding:13px 16px;background:var(--fb-primary);color:white;font-weight:800;font-size:1rem;cursor:pointer}button:disabled{opacity:.65;cursor:wait}.status{margin-top:14px;min-height:22px;font-weight:700}.status.error{color:#b91c1c}.status.success{color:#047857}.auth-links{margin-top:18px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}a{color:var(--fb-primary);font-weight:700;text-decoration:none}.small-note{font-size:.9rem}