body { margin:0; padding:0; font-family:"Segoe UI", Tahoma, sans-serif; background: #f8fafc; height: 100vh; display: flex; justify-content: center; align-items: center; color: #1e293b; }
            .login-box { background: white; padding: 40px; border-radius: 20px; box-shadow: 0 15px 35px rgba(0,0,0,0.05); border: 1px solid #e2e8f0; width: 350px; text-align: center; }
            .login-box img { max-width: 250px; margin-bottom: 25px; }
            .input-group { margin-bottom: 20px; text-align: right; }
            .input-group label { display: block; margin-bottom: 8px; font-size: 14px; color: #64748b; font-weight: 600; }
            .input-group input { width: 100%; padding: 12px; background: #f1f5f9; border: 1px solid #cbd5e1; color: #0f172a; border-radius: 8px; box-sizing: border-box; outline: none; transition: all 0.3s; font-size: 15px; }
            .input-group input:focus { border-color: #3b82f6; background: white; box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1); }
            button { width: 100%; padding: 14px; background: #3b82f6; color: white; border: none; border-radius: 8px; font-size: 16px; font-weight: bold; cursor: pointer; transition: background 0.3s; }
            button:hover { background: #2563eb; }
            .error-msg { color: #ef4444; font-size: 13px; margin-bottom: 15px; display: none; background: #fef2f2; padding: 10px; border-radius: 6px; border: 1px solid #fecaca; }